Conserved Domains and Related Protein Families
Conserved Domains Detected by HHsearch
Original result of HHsearch against CDD database
ID Alignment Graph Length
Definition
Probability
Query
78
KOG0497 760
consensus Oxidosqualene-lanosterol cyclase and rel
99.77
PLN03012 759
Camelliol C synthase
99.71
PLN02993 763
lupeol synthase
99.65
TIGR03463 634
osq_cycl 2,3-oxidosqualene cyclase. This model ide
99.08
TIGR01507 635
hopene_cyclase squalene-hopene cyclase. SHC is an
98.92
cd02892 634
SQCY_1 Squalene cyclase (SQCY) domain subgroup 1;
98.86
TIGR01787 621
squalene_cyclas squalene/oxidosqualene cyclases. T
98.77
cd02889 348
SQCY Squalene cyclase (SQCY) domain; found in clas
97.43
PF09492
289
Pec_lyase: Pectic acid lyase; InterPro: IPR012669
95.77
TIGR02474
290
pec_lyase pectate lyase, PelA/Pel-15E family. Memb
95.25
PF13243 109
Prenyltrans_1: Prenyltransferase-like; PDB: 3SDR_A
94.91
PF13243 109
Prenyltrans_1: Prenyltransferase-like; PDB: 3SDR_A
94.82
PF13249 113
Prenyltrans_2: Prenyltransferase-like; PDB: 1O6R_B
93.64
COG1657 517
SqhC Squalene cyclase [Lipid metabolism]
93.5
PF07678
246
A2M_comp: A-macroglobulin complement component; In
93.09
cd02896
297
complement_C3_C4_C5 Proteins similar to C3, C4 and
91.99
cd02897
292
A2M_2 Proteins similar to alpha2-macroglobulin (al
90.6
) (2,3-epoxysqualene-cycloartenol cyclase) is a plant enzyme that catalyzes the cyclization of (S)-2,3-epoxysqualene to cycloartenol.; GO: 0003824 catalytic activity; PDB: 2IEJ_B 1LD7_B 1LD8_B 2H6G_B 1TN6_B 1S63_B 1MZC_B 2H6I_B 2H6F_B 1JCQ_B ...." target="_blank" href="http://www.ncbi.nlm.nih.gov/Structure/cdd/cddsrv.cgi?uid=PF00432">PF0043244
Prenyltrans: Prenyltransferase and squalene oxidas
90.22
cd02889
348
SQCY Squalene cyclase (SQCY) domain; found in clas
89.55
PLN03012 759
Camelliol C synthase
88.6
PLN02993 763
lupeol synthase
86.21
cd00688
300
ISOPREN_C2_like This group contains class II terpe
85.32
cd02891
282
A2M_like Proteins similar to alpha2-macroglobulin
85.16
TIGR01787 621
squalene_cyclas squalene/oxidosqualene cyclases. T
83.04
cd00688 300
ISOPREN_C2_like This group contains class II terpe
82.98
PF13249 113
Prenyltrans_2: Prenyltransferase-like; PDB: 1O6R_B
82.61
TIGR03463 634
osq_cycl 2,3-oxidosqualene cyclase. This model ide
80.65
>KOG0497 consensus Oxidosqualene-lanosterol cyclase and related proteins [Lipid transport and metabolism]
Back Hide alignment and domain information
Probab=99.77 E-value=6.5e-20 Score=155.17 Aligned_cols=55 Identities=29% Similarity=0.508 Sum_probs=49.9
Q ss_pred CCCCCCCCCChhHhHHHHHHHhccccCCCCCccceeeeec-cchhhhhhhhhhhhhhhhhh
Q 047909 1 MLQKQADRDPTHLHSVDGYILDLQMENGDNPDDTMNIWYA-MCGLLVIMIKNAIVENKFRL 60 (78)
Q Consensus 1 M~AGqaerDp~PLhRAaklLin~QlenGDwPQqeI~G~f~-~c~l~y~~yr~a~~~n~f~l 60 (78)
+.|||++|||.|+|||||+|||+|++|||||||+|+|+|+ +||++|+.| ||+|||
T Consensus 690 i~~~q~~rd~~P~hr~ak~linsQ~~nGdfpqq~i~g~f~~~~~~~y~~y-----r~~F~~ 745 (760)
T KOG0497|consen 690 IMAGQAERDPLPLHRAAKVLINSQLENGDFPQQEIEGVFNKNCMIHYPTY-----RNIFPI 745 (760)
T ss_pred HhcCCcccccchHHHHHHHHHhcccccCCcchhHHHHHhhhhhhhccchh-----hhhccH
Confidence 4689999999999999999999999999999999999999 788777665 578886
>PLN03012 Camelliol C synthase
Back Show alignment and domain information
Probab=99.71 E-value=2.8e-18 Score=144.44 Aligned_cols=56 Identities=34% Similarity=0.485 Sum_probs=51.3
Q ss_pred CCCCCCCCCChhHhHHHHHHHhccccCCCCCccceeeeec-cchhhhhhhhhhhhhhhhhhe
Q 047909 1 MLQKQADRDPTHLHSVDGYILDLQMENGDNPDDTMNIWYA-MCGLLVIMIKNAIVENKFRLL 61 (78)
Q Consensus 1 M~AGqaerDp~PLhRAaklLin~QlenGDwPQqeI~G~f~-~c~l~y~~yr~a~~~n~f~l~ 61 (78)
|+|||+++|++|||||+++||++|++||+||||+|+|+|+ +|+++|++|| |+|||.
T Consensus 691 i~ag~~~~~~~~i~Rg~~~Ll~~Q~~dG~W~q~~~~G~F~~~~~i~Y~~Yr-----~~FPl~ 747 (759)
T PLN03012 691 IHAGQAERDPIPLHRAAKLIINSQLENGDFPQQEATGAFLKNCLLHYAAYR-----NIFPLW 747 (759)
T ss_pred HHcCCCCCCcHHHHHHHHHHHHcccCCCCCCCceeeeeeccceEEecCccc-----hHHHHH
Confidence 5789999999999999999999999999999999999999 8888887764 789885
>PLN02993 lupeol synthase
Back Show alignment and domain information
Probab=99.65 E-value=5.6e-17 Score=136.60 Aligned_cols=56 Identities=32% Similarity=0.429 Sum_probs=51.4
Q ss_pred CCCCCCCCCChhHhHHHHHHHhccccCCCCCccceeeeec-cchhhhhhhhhhhhhhhhhhe
Q 047909 1 MLQKQADRDPTHLHSVDGYILDLQMENGDNPDDTMNIWYA-MCGLLVIMIKNAIVENKFRLL 61 (78)
Q Consensus 1 M~AGqaerDp~PLhRAaklLin~QlenGDwPQqeI~G~f~-~c~l~y~~yr~a~~~n~f~l~ 61 (78)
|+||++++|++||+||+++||++|++||+||||+|+|+|+ +|+|+|++| ||+|||.
T Consensus 691 ~~aG~~~~~~~~l~Rgi~~L~~~Q~~~G~W~q~~~~G~F~~~~~i~Y~~Y-----r~~FPl~ 747 (763)
T PLN02993 691 IHAGQAERDLIPLHRAAKLIITSQLENGDFPQQEILGAFMNTCMLHYATY-----RNTFPLW 747 (763)
T ss_pred HHcCCCCCCcHHHHHHHHHHHhccCCCCCCCCcceeceECccceeccCcc-----chHHHHH
Confidence 4689999999999999999999999999999999999999 898888865 5789985
>TIGR03463 osq_cycl 2,3-oxidosqualene cyclase
Back Show alignment and domain information
Probab=99.08 E-value=3.2e-11 Score=98.62 Aligned_cols=53 Identities=13% Similarity=0.077 Sum_probs=44.2
Q ss_pred CCCCCCCCChhHhHHHHHHHhccccCCCCCccceeeeec-cchhhhhhhhhhhhhhhhhhe
Q 047909 2 LQKQADRDPTHLHSVDGYILDLQMENGDNPDDTMNIWYA-MCGLLVIMIKNAIVENKFRLL 61 (78)
Q Consensus 2 ~AGqaerDp~PLhRAaklLin~QlenGDwPQqeI~G~f~-~c~l~y~~yr~a~~~n~f~l~ 61 (78)
.+|+++ ..+++||+++|+++|.+||+||||+|+|+|+ .|+++|.+| +|+|||.
T Consensus 576 ~~g~~~--~~~i~rgi~~L~~~Q~~dG~W~~~~~~G~f~~~~~l~Y~~Y-----~~~fpl~ 629 (634)
T TIGR03463 576 EAGEGG--HDAVQRGVAWLRSRQQEDGRWPREPINGVFFGTAMLDYDLY-----LRYFPTW 629 (634)
T ss_pred HcCCcC--CHHHHHHHHHHHHhCCCCCCCCCCceeeeeCcceeEecCcc-----chHhHHH
Confidence 456654 4469999999999999999999999999999 777666665 5789985
This model identifies 2,3-oxidosqualene cyclases from Stigmatella aurantiaca which produces cycloartenol, and Gemmata obscuriglobus and Methylococcus capsulatus which each produce the closely related sterol, lanosterol.
>TIGR01507 hopene_cyclase squalene-hopene cyclase
Back Show alignment and domain information
Probab=98.92 E-value=4.4e-10 Score=92.21 Aligned_cols=53 Identities=17% Similarity=0.132 Sum_probs=46.5
Q ss_pred CCCCCCCCChhHhHHHHHHHhccccCCCCCccceeee-ec-cchhhhhhhhhhhhhhhhhhe
Q 047909 2 LQKQADRDPTHLHSVDGYILDLQMENGDNPDDTMNIW-YA-MCGLLVIMIKNAIVENKFRLL 61 (78)
Q Consensus 2 ~AGqaerDp~PLhRAaklLin~QlenGDwPQqeI~G~-f~-~c~l~y~~yr~a~~~n~f~l~ 61 (78)
.+|++ |...++||+++|+++|.+||.|+|+.++|. |+ .|+++|.+|| |+|||.
T Consensus 570 ~ag~~--~~~~I~rav~~L~~~Q~~dG~W~e~~~~g~gfp~~~yi~Y~~Y~-----~~fpl~ 624 (635)
T TIGR01507 570 AAGRA--ESEAARRGVQYLVETQRPDGGWDEPYYTGTGFPGDFYLGYHMYR-----HVFPLL 624 (635)
T ss_pred HhCCC--CcHHHHHHHHHHHHhcCCCCCCCCcccccCcccceeeecccchh-----hHhHHH
Confidence 35655 445799999999999999999999999999 98 9999988887 899985
SHC is an essential prokaryotic gene in hopanoid (triterpenoid) biosynthesis. Squalene hopene cyclase, an integral membrane protein, directly cyclizes squalene into hopanoid products.
>cd02892 SQCY_1 Squalene cyclase (SQCY) domain subgroup 1; found in class II terpene cyclases that have an alpha 6 - alpha 6 barrel fold
Back Show alignment and domain information
Probab=98.86 E-value=9.8e-10 Score=88.74 Aligned_cols=53 Identities=19% Similarity=0.169 Sum_probs=43.5
Q ss_pred CCCCCCCCChhHhHHHHHHHhccccCCCCCccceeeeec-cchhhhhhhhhhhhhhhhhhe
Q 047909 2 LQKQADRDPTHLHSVDGYILDLQMENGDNPDDTMNIWYA-MCGLLVIMIKNAIVENKFRLL 61 (78)
Q Consensus 2 ~AGqaerDp~PLhRAaklLin~QlenGDwPQqeI~G~f~-~c~l~y~~yr~a~~~n~f~l~ 61 (78)
.+|+. |..+++||+++|+++|.++|+|+|++++|+|. .|+++|. .|+|+|||.
T Consensus 576 ~~g~~--~~~~i~r~i~wL~~~Q~~~G~w~~~~~~g~~~~~~~~~y~-----~Y~~~fpl~ 629 (634)
T cd02892 576 AAGEP--DSEAVERGIKYLLNTQLPDGDWPQEEITGVGFPNFYIRYH-----NYRNYFPLW 629 (634)
T ss_pred HcCCC--ChHHHHHHHHHHHHcCCCCCCCCCcccccccCCCeeeccC-----chhhHhHHH
Confidence 35554 55689999999999999999999999999999 6555554 557899985
Squalene cyclase (SQCY) and 2,3-oxidosqualene cyclase (OSQCY) are integral membrane proteins that catalyze a cationic cyclization cascade converting linear triterpenes to fused ring compounds. This group contains bacterial SQCY which catalyzes the convertion of squalene to hopene or diplopterol and eukaryotic OSQCY which transforms the 2,3-epoxide of squalene to compounds such as, lanosterol in mammals and fungi or, cycloartenol in plants. Deletion of a single glycine residue of Alicyclobacillus acidocaldarius SQCY alters its substrate specificity into that of eukaryotic OSQCY. Both enzymes have a second minor domain, which forms an alpha-alpha barrel that is inserted into the major domain.
>TIGR01787 squalene_cyclas squalene/oxidosqualene cyclases
Back Show alignment and domain information
Probab=98.77 E-value=2.1e-09 Score=87.78 Aligned_cols=53 Identities=23% Similarity=0.176 Sum_probs=43.9
Q ss_pred CCCCCCCCChhHhHHHHHHHhccccCCCCCccceeeeec--cchhhhhhhhhhhhhhhhhhe
Q 047909 2 LQKQADRDPTHLHSVDGYILDLQMENGDNPDDTMNIWYA--MCGLLVIMIKNAIVENKFRLL 61 (78)
Q Consensus 2 ~AGqaerDp~PLhRAaklLin~QlenGDwPQqeI~G~f~--~c~l~y~~yr~a~~~n~f~l~ 61 (78)
.+|+++. ..++||+++|+++|.+||.|+|+.++|.|. .|+++|++ |+|+|||+
T Consensus 560 ~ag~~~~--~ai~rgv~~L~~~Q~~dG~w~~~~~~g~~~p~~~~i~Y~~-----Y~~~fpl~ 614 (621)
T TIGR01787 560 AAGEADS--EAIERGVKYLLETQRPDGDWPQEYITGVGFPKNFYLKYTN-----YRNIFPLW 614 (621)
T ss_pred HcCccch--HHHHHHHHHHHHhCCCCCCCCCccccCCCCcccceecccc-----cchhhHHH
Confidence 3555543 469999999999999999999999999887 67777775 57899985
This family of enzymes catalyzes the cyclization of the triterpenes squalene or 2-3-oxidosqualene to a variety of products including hopene, lanosterol, cycloartenol, amyrin, lupeol and isomultiflorenol.
>cd02889 SQCY Squalene cyclase (SQCY) domain; found in class II terpene cyclases that have an alpha 6 - alpha 6 barrel fold
Back Show alignment and domain information
Probab=97.43 E-value=0.0001 Score=53.21 Aligned_cols=48 Identities=25% Similarity=0.338 Sum_probs=40.9
Q ss_pred CChhHhHHHHHHHhccccCCCCCccceeeeec-cchhhhhhhhhhhhhhhhhhe
Q 047909 9 DPTHLHSVDGYILDLQMENGDNPDDTMNIWYA-MCGLLVIMIKNAIVENKFRLL 61 (78)
Q Consensus 9 Dp~PLhRAaklLin~QlenGDwPQqeI~G~f~-~c~l~y~~yr~a~~~n~f~l~ 61 (78)
|...+.||+++|.+.|.++|.|+....+|.+. .+ .|++..+.++|||.
T Consensus 295 ~~~~v~~a~~wL~~~Q~~dG~f~~~~~~~~~~~~~-----~~~~~~~~~~~~~~ 343 (348)
T cd02889 295 DSEAVKRGVKYLLNTQQEDGDWPQEEITGVFFKNF-----YIRYHNYRNYFPLW 343 (348)
T ss_pred CHHHHHHHHHHHHHhcCCCCCcCCceeeeeeccee-----eeccCccchHhHHH
Confidence 55679999999999999999999999999888 54 56666777888875
Squalene cyclase (SQCY) and 2,3-oxidosqualene cyclase (OSQCY) are integral membrane proteins that catalyze a cationic cyclization cascade converting linear triterpenes to fused ring compounds. Bacterial SQCY catalyzes the convertion of squalene to hopene or diplopterol. Eukaryotic OSQCY transforms the 2,3-epoxide of squalene to compounds such as, lanosterol (a metabolic precursor of cholesterol and steroid hormones) in mammals and fungi or, cycloartenol in plants. Deletion of a single glycine residue of Alicyclobacillus acidocaldarius SQCY alters its substrate specificity into that of eukaryotic OSQCY. Both enzymes have a second minor domain, which forms an alpha-alpha barrel that is inserted into the major domain. This group also contains SQCY-like archael sequences and some bacterial SQCY's which lack this minor domain.
>PF09492 Pec_lyase: Pectic acid lyase; InterPro: IPR012669 Members of this family are isozymes of pectate lyase (4
Back Show alignment and domain information
Probab=95.77 E-value=0.006 Score=47.48 Aligned_cols=22 Identities=27% Similarity=0.356 Sum_probs=17.6
Q ss_pred hhHhHHHHHHHhccccCCCCCc
Q 047909 11 THLHSVDGYILDLQMENGDNPD 32 (78)
Q Consensus 11 ~PLhRAaklLin~QlenGDwPQ 32 (78)
+.+.||+.+|+++|-+||-|||
T Consensus 62 ~A~~kgl~ylL~aQypnGGWPQ 83 (289)
T PF09492_consen 62 EAFLKGLDYLLKAQYPNGGWPQ 83 (289)
T ss_dssp HHHHHHHHHHHHHS-TTS--BS
T ss_pred HHHHHHHHHHHHhhCCCCCCCc
Confidence 4588999999999999999999
2.2.2 from EC), also called polygalacturonic transeliminase and alpha-1,4-D-endopolygalacturonic acid lyase.; PDB: 1R76_A 1GXM_B 1GXN_A 1GXO_A.
>TIGR02474 pec_lyase pectate lyase, PelA/Pel-15E family
Back Show alignment and domain information
Probab=95.25 E-value=0.011 Score=46.21 Aligned_cols=29 Identities=21% Similarity=0.164 Sum_probs=24.3
Q ss_pred CCCCChhHhHHHHHHHhccccCCCCCccc
Q 047909 6 ADRDPTHLHSVDGYILDLQMENGDNPDDT 34 (78)
Q Consensus 6 aerDp~PLhRAaklLin~QlenGDwPQqe 34 (78)
..+..+.+.||+.+|+++|-+||-|||=.
T Consensus 62 d~~y~~A~~rgld~LL~aQypnGGWPQf~ 90 (290)
T TIGR02474 62 NAKYRDAARKGIEYLLKAQYPNGGWPQFY 90 (290)
T ss_pred chhHHHHHHHHHHHHHhhhCCCCCcCccc
Confidence 34455679999999999999999999854
Members of this family are isozymes of pectate lyase (EC 4.2.2.2), also called polygalacturonic transeliminase and alpha-1,4-D-endopolygalacturonic acid lyase.
>PF13243 Prenyltrans_1: Prenyltransferase-like; PDB: 3SDR_A 3SAE_A 3SDV_A 3SDT_A 3SDQ_A 3SDU_A
Back Show alignment and domain information
Probab=94.91 E-value=0.019 Score=35.36 Aligned_cols=28 Identities=11% Similarity=0.060 Sum_probs=16.7
Q ss_pred ChhHhHHHHHHHhccccCCCCCccceee
Q 047909 10 PTHLHSVDGYILDLQMENGDNPDDTMNI 37 (78)
Q Consensus 10 p~PLhRAaklLin~QlenGDwPQqeI~G 37 (78)
...|.||+++|++.|.+||.|.....+.
T Consensus 45 ~~ai~ka~~~l~~~Q~~dG~w~~~~~~~ 72 (109)
T PF13243_consen 45 DEAIKKAIDWLLSHQNPDGGWGYSGGEY 72 (109)
T ss_dssp SBSSHHHHHHHHH---TTS--S-TS--H
T ss_pred HHHHHHHHHHHHHhcCCCCCCCCcCCCC
Confidence 3459999999999999999999874433
>PF13243 Prenyltrans_1: Prenyltransferase-like; PDB: 3SDR_A 3SAE_A 3SDV_A 3SDT_A 3SDQ_A 3SDU_A
Back Show alignment and domain information
Probab=94.82 E-value=0.0078 Score=37.07 Aligned_cols=21 Identities=14% Similarity=0.248 Sum_probs=0.0
Q ss_pred HhHHHHHHHhccccCCCCCcc
Q 047909 13 LHSVDGYILDLQMENGDNPDD 33 (78)
Q Consensus 13 LhRAaklLin~QlenGDwPQq 33 (78)
|.+|+.+|++.|.+||.|+-.
T Consensus 1 i~~~~~~l~~~Q~~dG~W~~~ 21 (109)
T PF13243_consen 1 IKRAAEWLLSQQNPDGSWGYN 21 (109)
T ss_dssp ---------------------
T ss_pred Ccccccccccccccccccccc
Confidence 578999999999999999755
>PF13249 Prenyltrans_2: Prenyltransferase-like; PDB: 1O6R_B 1O6Q_B 1H35_C 1H3A_C 1SQC_A 1UMP_A 1O6H_C 1O79_B 1GSZ_C 1H37_C
Back Show alignment and domain information
Probab=93.64 E-value=0.032 Score=34.02 Aligned_cols=20 Identities=15% Similarity=0.237 Sum_probs=17.5
Q ss_pred hhHhHHHHHHHhccccCCCC
Q 047909 11 THLHSVDGYILDLQMENGDN 30 (78)
Q Consensus 11 ~PLhRAaklLin~QlenGDw 30 (78)
..+.||+++|++.|.+||.|
T Consensus 92 ~~~~~a~~~l~~~Q~~dGg~ 111 (113)
T PF13249_consen 92 EAVRKAVDWLLSCQNPDGGW 111 (113)
T ss_dssp TTHCCHHHHHHHTB-TTSSB
T ss_pred HHHHHHHHHHHHhcCCCCCC
Confidence 45899999999999999998
>COG1657 SqhC Squalene cyclase [Lipid metabolism]
Back Show alignment and domain information
Probab=93.50 E-value=0.0099 Score=49.69 Aligned_cols=42 Identities=5% Similarity=-0.066 Sum_probs=38.8
Q ss_pred CChhHhHHHHHHHhccccCCCCCccceeeeec-cchhhhhhhh
Q 047909 9 DPTHLHSVDGYILDLQMENGDNPDDTMNIWYA-MCGLLVIMIK 50 (78)
Q Consensus 9 Dp~PLhRAaklLin~QlenGDwPQqeI~G~f~-~c~l~y~~yr 50 (78)
++.+|++++++|+++|-++|.|-+.+.+|.|. +|-+.|+.|+
T Consensus 457 ~~~~i~~~~~~~~~~~~~~g~~~~~~~eg~~~~~~~~~~~~~~ 499 (517)
T COG1657 457 NQEAIKPGINLLVSDQEPDGSWREAEREGGFNCNFAIGYPYYL 499 (517)
T ss_pred chhhhcccccccccCcCCCCccccceecccCCCCcceeeeeEE
Confidence 55569999999999999999999999999999 8888999888
>PF07678 A2M_comp: A-macroglobulin complement component; InterPro: IPR011626 This domain covers the complement component region of the alpha-2-macroglobulin family
Back Show alignment and domain information
Probab=93.09 E-value=0.052 Score=39.23 Aligned_cols=30 Identities=17% Similarity=0.193 Sum_probs=24.4
Q ss_pred CCCCCCChhHhHHHHHHHhccccCCCCCcc
Q 047909 4 KQADRDPTHLHSVDGYILDLQMENGDNPDD 33 (78)
Q Consensus 4 GqaerDp~PLhRAaklLin~QlenGDwPQq 33 (78)
.+...|+.-|.+|+++|+++|.+||.|...
T Consensus 42 ~~i~vd~~~i~~a~~wL~~~Q~~dG~F~e~ 71 (246)
T PF07678_consen 42 KYIFVDENVICRAVKWLISQQQPDGSFEED 71 (246)
T ss_dssp TTS-CEHHHHHHHHHHHHHHBETTSEB--S
T ss_pred HhhcCCHHHHHHHHHHHHHhhcCCCccccC
Confidence 456788999999999999999999999654
The alpha-macroglobulin (aM) family of proteins includes protease inhibitors [], typified by the human tetrameric a2-macroglobulin (a2M); they belong to the MEROPS proteinase inhibitor family I39, clan IL. These protease inhibitors share several defining properties, which include (i) the ability to inhibit proteases from all catalytic classes, (ii) the presence of a 'bait region' and a thiol ester, (iii) a similar protease inhibitory mechanism and (iv) the inactivation of the inhibitory capacity by reaction of the thiol ester with small primary amines. aM protease inhibitors inhibit by steric hindrance []. The mechanism involves protease cleavage of the bait region, a segment of the aM that is particularly susceptible to proteolytic cleavage, which initiates a conformational change such that the aM collapses about the protease. In the resulting aM-protease complex, the active site of the protease is sterically shielded, thus substantially decreasing access to protein substrates. Two additional events occur as a consequence of bait region cleavage, namely (i) the h-cysteinyl-g-glutamyl thiol ester becomes highly reactive and (ii) a major conformational change exposes a conserved COOH-terminal receptor binding domain [] (RBD). RBD exposure allows the aM protease complex to bind to clearance receptors and be removed from circulation []. Tetrameric, dimeric, and, more recently, monomeric aM protease inhibitors have been identified [, ].; GO: 0005615 extracellular space; PDB: 1QSJ_D 1QQF_A 4ACQ_C 2B39_B 2WIN_H 2I07_B 2ICF_B 2XWJ_D 3G6J_B 2NOJ_C ....
>cd02896 complement_C3_C4_C5 Proteins similar to C3, C4 and C5 of vertebrate complement
Back Show alignment and domain information
Probab=91.99 E-value=0.11 Score=38.40 Aligned_cols=27 Identities=11% Similarity=0.184 Sum_probs=24.0
Q ss_pred CCCChhHhHHHHHHHhccccCCCCCcc
Q 047909 7 DRDPTHLHSVDGYILDLQMENGDNPDD 33 (78)
Q Consensus 7 erDp~PLhRAaklLin~QlenGDwPQq 33 (78)
..|+..|.||+++|+++|.+||.|...
T Consensus 99 ~v~~~~l~~a~~wL~~~Q~~dG~f~e~ 125 (297)
T cd02896 99 PVDQNVICGSVNWLISNQKPDGSFQEP 125 (297)
T ss_pred CCCHHHHHHHHHHHHhcCCCCCeeCCC
Confidence 467778999999999999999999954
The vertebrate complement system, comprised of a large number of distinct plasma proteins, is an effector of both the acquired and innate immune systems. The point of convergence of the classical, alternative and lectin pathways of the complement system is the proteolytic activation of C3. C4 plays a key role in propagating the classical and lectin pathways. C5 participates in the classical and alternative pathways. The thioester bond located within the structure of C3 and C4 is central to the function of complement. C5 does not contain an active thioester bond.
>cd02897 A2M_2 Proteins similar to alpha2-macroglobulin (alpha (2)-M)
Back Show alignment and domain information
Probab=90.60 E-value=0.22 Score=36.13 Aligned_cols=26 Identities=19% Similarity=0.114 Sum_probs=23.0
Q ss_pred CCCChhHhHHHHHHHhccccCCCCCc
Q 047909 7 DRDPTHLHSVDGYILDLQMENGDNPD 32 (78)
Q Consensus 7 erDp~PLhRAaklLin~QlenGDwPQ 32 (78)
..|...|.||+++|+++|.+||.|..
T Consensus 98 ~v~~~~i~ra~~wL~~~Q~~dG~f~~ 123 (292)
T cd02897 98 YIDENVLQQALTWLSSHQKSNGCFRE 123 (292)
T ss_pred CCCHHHHHHHHHHHHHhcCCCCCCCC
Confidence 45667899999999999999999974
This group also contains the pregnancy zone protein (PZP). Alpha(2)-M and PZP are broadly specific proteinase inhibitors. Alpha (2)-M is a major carrier protein in serum. The structural thioester of alpha (2)-M, is involved in the immobilization and entrapment of proteases. PZP is a trace protein in the plasma of non-pregnant females and males which is elevated in pregnancy. Alpha (2)-M and PZ bind to placental protein-14 and may modulate its activity in T-cell growth and cytokine production contributing to fetal survival. It has been suggested that thioester bond cleavage promotes the binding of PZ and alpha (2)-M to the CD91 receptor clearing them from circulation.
>PF00432 Prenyltrans: Prenyltransferase and squalene oxidase repeat This Prosite family is a subset of the Pfam family
Back Show alignment and domain information
Probab=90.22 E-value=0.28 Score=27.30 Aligned_cols=20 Identities=15% Similarity=0.243 Sum_probs=17.8
Q ss_pred HhHHHHHHHhccccCCCCCc
Q 047909 13 LHSVDGYILDLQMENGDNPD 32 (78)
Q Consensus 13 LhRAaklLin~QlenGDwPQ 32 (78)
..++.++|+++|.++|-|-.
T Consensus 3 ~~~~~~~l~~~Q~~dGGf~~ 22 (44)
T PF00432_consen 3 VEKLIRFLLSCQNPDGGFGG 22 (44)
T ss_dssp HHHHHHHHHHTBBTTSSBBS
T ss_pred HHHHHHHHHHHCCCCCCCCC
Confidence 57899999999999999864
; InterPro: IPR001330 The beta subunit of the farnesyltransferases is responsible for peptide binding. Squalene-hopene cyclase is a bacterial enzyme that catalyzes the cyclization of squalene into hopene, a key step in hopanoid (triterpenoid) metabolism []. Lanosterol synthase (5.4.99.7 from EC) (oxidosqualene-lanosterol cyclase) catalyzes the cyclization of (S)-2,3-epoxysqualene to lanosterol, the initial precursor of cholesterol, steroid hormones and vitamin D in vertebrates and of ergosterol in fungi []. Cycloartenol synthase ( ) (2,3-epoxysqualene-cycloartenol cyclase) is a plant enzyme that catalyzes the cyclization of (S)-2,3-epoxysqualene to cycloartenol.; GO: 0003824 catalytic activity; PDB: 2IEJ_B 1LD7_B 1LD8_B 2H6G_B 1TN6_B 1S63_B 1MZC_B 2H6I_B 2H6F_B 1JCQ_B ....
>cd02889 SQCY Squalene cyclase (SQCY) domain; found in class II terpene cyclases that have an alpha 6 - alpha 6 barrel fold
Back Show alignment and domain information
Probab=89.55 E-value=0.21 Score=36.13 Aligned_cols=21 Identities=24% Similarity=0.529 Sum_probs=19.1
Q ss_pred HhHHHHHHHhccccCCCCCcc
Q 047909 13 LHSVDGYILDLQMENGDNPDD 33 (78)
Q Consensus 13 LhRAaklLin~QlenGDwPQq 33 (78)
|.||+++|.++|.+||-|+-+
T Consensus 1 ~~~~~~~L~~~Q~~dG~W~~~ 21 (348)
T cd02889 1 IRRALDFLLSLQAPDGHWPGE 21 (348)
T ss_pred CchHHHHHHHhccCCCCcccc
Confidence 578999999999999999964
Squalene cyclase (SQCY) and 2,3-oxidosqualene cyclase (OSQCY) are integral membrane proteins that catalyze a cationic cyclization cascade converting linear triterpenes to fused ring compounds. Bacterial SQCY catalyzes the convertion of squalene to hopene or diplopterol. Eukaryotic OSQCY transforms the 2,3-epoxide of squalene to compounds such as, lanosterol (a metabolic precursor of cholesterol and steroid hormones) in mammals and fungi or, cycloartenol in plants. Deletion of a single glycine residue of Alicyclobacillus acidocaldarius SQCY alters its substrate specificity into that of eukaryotic OSQCY. Both enzymes have a second minor domain, which forms an alpha-alpha barrel that is inserted into the major domain. This group also contains SQCY-like archael sequences and some bacterial SQCY's which lack this minor domain.
>PLN03012 Camelliol C synthase
Back Show alignment and domain information
Probab=88.60 E-value=0.38 Score=41.91 Aligned_cols=31 Identities=16% Similarity=0.175 Sum_probs=24.9
Q ss_pred CCCCCCCChhHhHHHHHHHhccccCCCCCcc
Q 047909 3 QKQADRDPTHLHSVDGYILDLQMENGDNPDD 33 (78)
Q Consensus 3 AGqaerDp~PLhRAaklLin~QlenGDwPQq 33 (78)
+|....+...+.||+++|++.|.+||.|..-
T Consensus 631 ~g~~~~~~~~Irrav~fLls~Q~~DGGWGEs 661 (759)
T PLN03012 631 AGKTFNDCEAIRKGVHFLLAAQKDNGGWGES 661 (759)
T ss_pred hCccCCCcHHHHHHHHHHHHhcCCCCCcCCC
Confidence 4544455457999999999999999999853
>PLN02993 lupeol synthase
Back Show alignment and domain information
Probab=86.21 E-value=0.53 Score=41.03 Aligned_cols=30 Identities=13% Similarity=0.207 Sum_probs=24.2
Q ss_pred CCCCCCCChhHhHHHHHHHhccccCCCCCc
Q 047909 3 QKQADRDPTHLHSVDGYILDLQMENGDNPD 32 (78)
Q Consensus 3 AGqaerDp~PLhRAaklLin~QlenGDwPQ 32 (78)
+|....+...+.||+++|++.|.+||.|-.
T Consensus 631 ~G~~~~~~~~IrrAv~fLls~Q~~DGGWGE 660 (763)
T PLN02993 631 AGKTYNDCLAMRKGVHFLLTIQRDDGGWGE 660 (763)
T ss_pred cCCCCCCcHHHHHHHHHHHHhcCCCCCcCc
Confidence 455444545799999999999999999964
>cd00688 ISOPREN_C2_like This group contains class II terpene cyclases, protein prenyltransferases beta subunit, two broadly specific proteinase inhibitors alpha2-macroglobulin (alpha (2)-M) and pregnancy zone protein (PZP) and, the C3 C4 and C5 components of vertebrate complement
Back Show alignment and domain information
Probab=85.32 E-value=0.62 Score=30.92 Aligned_cols=25 Identities=32% Similarity=0.466 Sum_probs=21.4
Q ss_pred CChhHhHHHHHHHhccccCCCCCcc
Q 047909 9 DPTHLHSVDGYILDLQMENGDNPDD 33 (78)
Q Consensus 9 Dp~PLhRAaklLin~QlenGDwPQq 33 (78)
+...++|++++|++.|.+||.|.--
T Consensus 102 ~~~~~~~~~~~l~~~q~~dG~~~~~ 126 (300)
T cd00688 102 DRIDLARALNWLLSLQNEDGGFRED 126 (300)
T ss_pred CHHHHHHHHHHHHHccCCCCCeeee
Confidence 4456999999999999999999753
Class II terpene cyclases include squalene cyclase (SQCY) and 2,3-oxidosqualene cyclase (OSQCY), these integral membrane proteins catalyze a cationic cyclization cascade converting linear triterpenes to fused ring compounds. The protein prenyltransferases include protein farnesyltransferase (FTase) and geranylgeranyltransferase types I and II (GGTase-I and GGTase-II) which catalyze the carboxyl-terminal lipidation of Ras, Rab, and several other cellular signal transduction proteins, facilitating membrane associations and specific protein-protein interactions. Alpha (2)-M is a major carrier protein in serum and involved in the immobilization and entrapment of proteases. PZP is a pregnancy associated protein.
>cd02891 A2M_like Proteins similar to alpha2-macroglobulin (alpha (2)-M)
Back Show alignment and domain information
Probab=85.16 E-value=0.73 Score=32.31 Aligned_cols=25 Identities=24% Similarity=0.344 Sum_probs=21.6
Q ss_pred CCChhHhHHHHHHHhccccCCCCCc
Q 047909 8 RDPTHLHSVDGYILDLQMENGDNPD 32 (78)
Q Consensus 8 rDp~PLhRAaklLin~QlenGDwPQ 32 (78)
.|+..|.||+++|...|.++|.|.-
T Consensus 98 v~~~~i~ra~~~L~~~q~~~g~~~~ 122 (282)
T cd02891 98 VDENVLARALGWLVPQQKEDGSFRE 122 (282)
T ss_pred CCHHHHHHHHHHHHhccCCCCCcCC
Confidence 4556699999999999999999964
Alpha (2)-M is a major carrier protein in serum. It is a broadly specific proteinase inhibitor. The structural thioester of alpha (2)-M, is involved in the immobilization and entrapment of proteases. This group contains another broadly specific proteinase inhibitor: pregnancy zone protein (PZP). PZP is a trace protein in the plasma of non-pregnant females and males which is elevated in pregnancy. Alpha (2)-M and PZ bind to placental protein-14 and may modulate its activity in T-cell growth and cytokine production thereby protecting the allogeneic fetus from attack by the maternal immune system. This group also contains C3, C4 and C5 of vertebrate complement. The vertebrate complement is an effector of both the acquired and innate immune systems The point of convergence of the classical, alternative and lectin pathways of the complement system is the proteolytic activation of C3. C4 plays a key role in propaga
>TIGR01787 squalene_cyclas squalene/oxidosqualene cyclases
Back Show alignment and domain information
Probab=83.04 E-value=1.1 Score=37.41 Aligned_cols=29 Identities=17% Similarity=0.252 Sum_probs=23.4
Q ss_pred CCCCCCCChhHhHHHHHHHhccccCCCCC
Q 047909 3 QKQADRDPTHLHSVDGYILDLQMENGDNP 31 (78)
Q Consensus 3 AGqaerDp~PLhRAaklLin~QlenGDwP 31 (78)
+|+...|...++||+++|++.|.+||.|-
T Consensus 501 ~G~~~~~~~~i~rA~~~L~~~Q~~DGGWg 529 (621)
T TIGR01787 501 AGRTYRNCPEVQKACDWLLSRQMPDGGWG 529 (621)
T ss_pred hCCcccCCHHHHHHHHHHHhhcCCCCCCC
Confidence 45544444679999999999999999995
This family of enzymes catalyzes the cyclization of the triterpenes squalene or 2-3-oxidosqualene to a variety of products including hopene, lanosterol, cycloartenol, amyrin, lupeol and isomultiflorenol.
>cd00688 ISOPREN_C2_like This group contains class II terpene cyclases, protein prenyltransferases beta subunit, two broadly specific proteinase inhibitors alpha2-macroglobulin (alpha (2)-M) and pregnancy zone protein (PZP) and, the C3 C4 and C5 components of vertebrate complement
Back Show alignment and domain information
Probab=82.98 E-value=1.2 Score=29.52 Aligned_cols=27 Identities=19% Similarity=0.218 Sum_probs=22.6
Q ss_pred CChhHhHHHHHHHhccccCCCCCccce
Q 047909 9 DPTHLHSVDGYILDLQMENGDNPDDTM 35 (78)
Q Consensus 9 Dp~PLhRAaklLin~QlenGDwPQqeI 35 (78)
+...+.+++++|+++|.++|.|.-...
T Consensus 256 ~~~~~~~~~~~L~~~q~~~G~w~~~~~ 282 (300)
T cd00688 256 DLEDAEKLVKWLLSQQNEDGGFSSKPG 282 (300)
T ss_pred CcccHHHHHHHHHhccCCCCCcCcCCC
Confidence 455689999999999999999987543
Class II terpene cyclases include squalene cyclase (SQCY) and 2,3-oxidosqualene cyclase (OSQCY), these integral membrane proteins catalyze a cationic cyclization cascade converting linear triterpenes to fused ring compounds. The protein prenyltransferases include protein farnesyltransferase (FTase) and geranylgeranyltransferase types I and II (GGTase-I and GGTase-II) which catalyze the carboxyl-terminal lipidation of Ras, Rab, and several other cellular signal transduction proteins, facilitating membrane associations and specific protein-protein interactions. Alpha (2)-M is a major carrier protein in serum and involved in the immobilization and entrapment of proteases. PZP is a pregnancy associated protein.
>PF13249 Prenyltrans_2: Prenyltransferase-like; PDB: 1O6R_B 1O6Q_B 1H35_C 1H3A_C 1SQC_A 1UMP_A 1O6H_C 1O79_B 1GSZ_C 1H37_C
Back Show alignment and domain information
Probab=82.61 E-value=0.79 Score=27.83 Aligned_cols=17 Identities=18% Similarity=0.114 Sum_probs=14.1
Q ss_pred HHHHHhccccCCCCCcc
Q 047909 17 DGYILDLQMENGDNPDD 33 (78)
Q Consensus 17 aklLin~QlenGDwPQq 33 (78)
+++|++.|.+||.|+-.
T Consensus 1 v~~L~~~Q~~dGgw~~~ 17 (113)
T PF13249_consen 1 VDWLLSRQNPDGGWGGF 17 (113)
T ss_dssp HHHHHHHB-TTSSBBSS
T ss_pred CHhhHHHcCCCCCCcCC
Confidence 57899999999999973
>TIGR03463 osq_cycl 2,3-oxidosqualene cyclase
Back Show alignment and domain information
Probab=80.65 E-value=1.4 Score=36.85 Aligned_cols=22 Identities=14% Similarity=0.252 Sum_probs=19.9
Q ss_pred hhHhHHHHHHHhccccCCCCCc
Q 047909 11 THLHSVDGYILDLQMENGDNPD 32 (78)
Q Consensus 11 ~PLhRAaklLin~QlenGDwPQ 32 (78)
.-+.||+++|++.|.+||.|..
T Consensus 525 ~~i~rA~~~Ll~~Q~~DGgWg~ 546 (634)
T TIGR03463 525 MALQRAAAWLRSYQRADGGWGE 546 (634)
T ss_pred HHHHHHHHHHHHccCCCCCccC
Confidence 4599999999999999999963
This model identifies 2,3-oxidosqualene cyclases from Stigmatella aurantiaca which produces cycloartenol, and Gemmata obscuriglobus and Methylococcus capsulatus which each produce the closely related sterol, lanosterol.
Homologous Structure Templates
Structure Templates Detected by HHsearch
Original result of HHsearch against PDB70 database
ID Alignment Graph Length
Definition
Probability
Query 78
1w6k_A 732
Lanosterol synthase; cyclase, cholesterol, monotop
98.72
2sqc_A 631
Squalene-hopene cyclase; isomerase, triterpene cyc
98.62
1gxm_A
332
Pectate lyase; mechanism, elimination; 1.32A {Cell
94.47
1r76_A
408
Pectate lyase; A-helical structure; 2.65A {Azospir
93.8
1qqf_A
277
Protein (complement C3DG); alpha-alpha barrel, imm
91.82
3dss_B 331
Geranylgeranyl transferase type-2 subunit beta; pr
89.75
2wy7_A
310
Complement C3D fragment; immune system, immune res
89.63
1hzf_A
367
Complement factor C4A; alpha-alpha 6 barrel, immun
88.96
2wy7_A 310
Complement C3D fragment; immune system, immune res
88.34
2h6f_B
437
Protein farnesyltransferase beta subunit; ftase, f
85.16
>1w6k_A Lanosterol synthase; cyclase, cholesterol, monotopic membrane protein, B-octyl-glucoside, isomerase, steroid biosynthesis; HET: BOG LAN; 2.1A {Homo sapiens} SCOP: a.102.4.2 a.102.4.2 PDB: 1w6j_A*
Back Hide alignment and structure
Probab=98.72 E-value=3.3e-09 Score=86.15 Aligned_cols=52 Identities=19% Similarity=0.325 Sum_probs=44.3
Q ss_pred CCCCCCCChhHhHHHHHHHhccccCCCCCccceeeeec-cchhhhhhhhhhhhhhhhhhe
Q 047909 3 QKQADRDPTHLHSVDGYILDLQMENGDNPDDTMNIWYA-MCGLLVIMIKNAIVENKFRLL 61 (78)
Q Consensus 3 AGqaerDp~PLhRAaklLin~QlenGDwPQqeI~G~f~-~c~l~y~~yr~a~~~n~f~l~ 61 (78)
+|++ |.++++||+++|+++|.++|+|+|+.++|.|+ .|+++|+.|| |+|||.
T Consensus 662 ag~~--~~~~i~r~v~wL~~~Q~~~Ggf~~~~~~g~f~~~~~i~Y~~y~-----~~fpl~ 714 (732)
T 1w6k_A 662 VRHP--DIEAQERGVRCLLEKQLPNGDWPQENIAGVFNKSCAISYTSYR-----NIFPIW 714 (732)
T ss_dssp TTCS--CHHHHHHHHHHHHHHCCTTSCCCCCSCCEEETTTEEECCTTHH-----HHHHHH
T ss_pred cCCC--ChHHHHHHHHHHHHhcCCCCCccCCcccccccchhhhcccchh-----HHHHHH
Confidence 5654 77789999999999999999999999999999 8888877655 567764
>2sqc_A Squalene-hopene cyclase; isomerase, triterpene cyclase, monotopic membrane protein, QW-sequence, repeat; HET: C8E; 2.00A {Alicyclobacillus acidocaldarius} SCOP: a.102.4.2 a.102.4.2 PDB: 3sqc_A 1ump_A* 1h35_A* 1h36_A* 1h37_A* 1h39_A* 1h3a_A* 1h3b_A* 1h3c_A* 1o6h_A* 1o6q_A* 1gsz_A* 1o79_A* 1sqc_A* 1o6r_A*
Back Show alignment and structure
Probab=98.62 E-value=1.3e-08 Score=80.53 Aligned_cols=52 Identities=15% Similarity=0.114 Sum_probs=44.0
Q ss_pred CCCCCCCChhHhHHHHHHHhccccCCCCCccceeee-ec-cchhhhhhhhhhhhhhhhhhe
Q 047909 3 QKQADRDPTHLHSVDGYILDLQMENGDNPDDTMNIW-YA-MCGLLVIMIKNAIVENKFRLL 61 (78)
Q Consensus 3 AGqaerDp~PLhRAaklLin~QlenGDwPQqeI~G~-f~-~c~l~y~~yr~a~~~n~f~l~ 61 (78)
+|+. +..+++||+++|+++|.+||.|+++.++|+ |+ .|+++|+.|| |+|||.
T Consensus 566 ag~~--~~~~i~rav~wL~~~Q~~dGgw~~~~~tg~gf~~~~yl~y~~y~-----~~f~l~ 619 (631)
T 2sqc_A 566 GGRA--ESEAARRGVQYLVETQRPDGGWDEPYYTGTGFPGDFYLGYTMYR-----HVFPTL 619 (631)
T ss_dssp TTCS--SSHHHHHHHHHHHHHCCTTSCCCCCSCCEEEETTTEEEEETTHH-----HHHHHH
T ss_pred cCCC--ChHHHHHHHHHHHhccCCCCCcCCCCcccccccccceeeccchh-----hHHHHH
Confidence 4555 456799999999999999999999999998 88 8988888766 567773
>1gxm_A Pectate lyase; mechanism, elimination; 1.32A {Cellvibrio cellulosa} SCOP: a.102.5.1 PDB: 1gxn_A 1gxo_A*
Back Show alignment and structure
Probab=94.47 E-value=0.018 Score=44.52 Aligned_cols=25 Identities=12% Similarity=0.240 Sum_probs=22.2
Q ss_pred hhHhHHHHHHHhccccCCCCCccce
Q 047909 11 THLHSVDGYILDLQMENGDNPDDTM 35 (78)
Q Consensus 11 ~PLhRAaklLin~QlenGDwPQqeI 35 (78)
+.+.||+.+|+.+|-+||-|||=..
T Consensus 97 ~Ai~Rgl~wlL~mQ~~nGGWpqFdp 121 (332)
T 1gxm_A 97 DAVRKAANFLVNSQYSTGALPQFYP 121 (332)
T ss_dssp HHHHHHHHHHHHHCCTTSCCBSEES
T ss_pred HHHHHHHHHHHhccCCCCCccccCC
Confidence 4589999999999999999999643
>1r76_A Pectate lyase; A-helical structure; 2.65A {Azospirillum irakense} SCOP: a.102.5.1
Back Show alignment and structure
Probab=93.80 E-value=0.029 Score=44.37 Aligned_cols=25 Identities=24% Similarity=0.148 Sum_probs=22.4
Q ss_pred hhHhHHHHHHHhccccCCCCCccce
Q 047909 11 THLHSVDGYILDLQMENGDNPDDTM 35 (78)
Q Consensus 11 ~PLhRAaklLin~QlenGDwPQqeI 35 (78)
+.+.||+.+|+.+|.+||-|||=..
T Consensus 175 ~Ai~Rgl~wlL~mQ~~nGGWpqFdp 199 (408)
T 1r76_A 175 DAALKGIEYLLASQFPNGGWPQVWP 199 (408)
T ss_dssp HHHHHHHHHHHHHSCTTSCCBSBSS
T ss_pred HHHHHHHHHHHHccCCCCCCcCcCc
Confidence 4589999999999999999999764
>1qqf_A Protein (complement C3DG); alpha-alpha barrel, immune system; 1.45A {Rattus norvegicus} SCOP: a.102.4.4 PDB: 1qsj_A 3d5r_A 2noj_A 2gox_A 3d5s_A 1c3d_A 2xqw_A
Back Show alignment and structure
Probab=91.82 E-value=0.081 Score=36.79 Aligned_cols=27 Identities=19% Similarity=0.257 Sum_probs=23.2
Q ss_pred CCCChhHhHHHHHHH-hccccCCCCCcc
Q 047909 7 DRDPTHLHSVDGYIL-DLQMENGDNPDD 33 (78)
Q Consensus 7 erDp~PLhRAaklLi-n~QlenGDwPQq 33 (78)
..|+..|.||+++|+ +.|.+||.|...
T Consensus 85 ~v~~~~i~~a~~~L~~~~Q~~dG~f~~~ 112 (277)
T 1qqf_A 85 AIDSQVLCGAVKWLILEKQKPDGVFQED 112 (277)
T ss_dssp CCCHHHHHHHHHHHHHHHBCTTSCBCCS
T ss_pred CCCHHHHHHHHHHHHHhccCCCCCccCC
Confidence 567778999999999 599999999754
>3dss_B Geranylgeranyl transferase type-2 subunit beta; protein prenylation, metal-binding, prenyltransferase, zinc, phosphoprotein; 1.80A {Rattus norvegicus} SCOP: a.102.4.3 PDB: 1ltx_B* 3c72_B* 1dce_B 3dst_B* 3dsu_B* 3dsv_B* 3dsw_B* 3dsx_B* 3hxb_B* 3hxc_B* 3hxd_B* 3hxe_B* 3hxf_B* 3pz1_B* 3pz2_B* 3pz3_B* 4ehm_B* 4gts_B* 4gtt_B* 4gtv_B*
Back Show alignment and structure
Probab=89.75 E-value=0.12 Score=38.45 Aligned_cols=23 Identities=9% Similarity=0.148 Sum_probs=19.9
Q ss_pred CChhHhHHHHHHHhccccCCCCC
Q 047909 9 DPTHLHSVDGYILDLQMENGDNP 31 (78)
Q Consensus 9 Dp~PLhRAaklLin~QlenGDwP 31 (78)
|+.+++|++++|+++|.++|.|-
T Consensus 208 ~~~~~~~~~~wL~~~Q~~dGGf~ 230 (331)
T 3dss_B 208 HQVNSDLLGWWLCERQLPSGGLN 230 (331)
T ss_dssp GGSCHHHHHHHHHTTBCTTSCBC
T ss_pred chhhHHHHHHHHHHhCCCCCCcC
Confidence 34569999999999999999883
>2wy7_A Complement C3D fragment; immune system, immune response, innate immunity, complement inflammatory response; 1.70A {Homo sapiens} PDB: 2wy8_A 3oed_A 3oxu_A 3rj3_A 1ghq_A* 1w2s_A
Back Show alignment and structure
Probab=89.63 E-value=0.17 Score=35.96 Aligned_cols=27 Identities=19% Similarity=0.257 Sum_probs=23.0
Q ss_pred CCCChhHhHHHHHHH-hccccCCCCCcc
Q 047909 7 DRDPTHLHSVDGYIL-DLQMENGDNPDD 33 (78)
Q Consensus 7 erDp~PLhRAaklLi-n~QlenGDwPQq 33 (78)
..|+..|.||+++|+ +.|.+||.|...
T Consensus 101 ~v~~~~i~~a~~~L~~~~Q~~dGsf~~~ 128 (310)
T 2wy7_A 101 AIDSQVLCGAVKWLILEKQKPDGVFQED 128 (310)
T ss_dssp CCCHHHHHHHHHHHHHHHBCTTSCBCCS
T ss_pred CCCHHHHHHHHHHHHHhhcCCCCccccC
Confidence 467778999999999 599999999743
>1hzf_A Complement factor C4A; alpha-alpha 6 barrel, immune system; 2.30A {Homo sapiens} SCOP: a.102.4.4
Back Show alignment and structure
Probab=88.96 E-value=0.19 Score=36.92 Aligned_cols=26 Identities=23% Similarity=0.465 Sum_probs=22.5
Q ss_pred CCCChhHhHHHHHHHhccccCCCCCc
Q 047909 7 DRDPTHLHSVDGYILDLQMENGDNPD 32 (78)
Q Consensus 7 erDp~PLhRAaklLin~QlenGDwPQ 32 (78)
..|...|.||+++|.+.|.+||.|..
T Consensus 138 ~v~~~~i~~a~~~L~~~Q~~dG~~~~ 163 (367)
T 1hzf_A 138 GGSPEKLQETSNWLLSQQQADGSFQD 163 (367)
T ss_dssp CCCHHHHHHHHHHHGGGBCTTSCBCC
T ss_pred CCCHHHHHHHHHHHHHhhccCCCccc
Confidence 44667799999999999999999964
>2wy7_A Complement C3D fragment; immune system, immune response, innate immunity, complement inflammatory response; 1.70A {Homo sapiens} PDB: 2wy8_A 3oed_A 3oxu_A 3rj3_A 1ghq_A* 1w2s_A
Back Show alignment and structure
Probab=88.34 E-value=0.12 Score=36.63 Aligned_cols=31 Identities=13% Similarity=0.156 Sum_probs=26.0
Q ss_pred ChhHhHHHHHHHhccccCCCCC--ccceeeeec
Q 047909 10 PTHLHSVDGYILDLQMENGDNP--DDTMNIWYA 40 (78)
Q Consensus 10 p~PLhRAaklLin~QlenGDwP--QqeI~G~f~ 40 (78)
+....+++++|+++|.++|.|. |+.+.+..+
T Consensus 253 ~~~~~~~v~wL~~qq~~~Ggw~sTq~T~~aL~A 285 (310)
T 2wy7_A 253 FDFVPPVVRWLNEQRYYGGGYGSTQATFMVFQA 285 (310)
T ss_dssp TTTHHHHHHHHHHTTCCCCSTTCHHHHHHHHHH
T ss_pred hhhHHHHHHHHHHccCCCCCeeccHHHHHHHHH
Confidence 4568999999999999999999 888776444
>2h6f_B Protein farnesyltransferase beta subunit; ftase, farnesyltransferase, farnesyl transferase, prenyltransferase, CAAX, RAS, lipid modification, prenylation; HET: SUC FAR; 1.50A {Homo sapiens} SCOP: a.102.4.3 PDB: 1jcq_B* 1ld7_B* 1mzc_B* 1s63_B* 1sa4_B* 1tn6_B* 2f0y_B* 1ld8_B* 2iej_B* 3e37_B* 2h6h_B* 2h6g_B* 2h6i_B* 1o1t_B* 1o1s_B* 1o1r_B* 3eu5_B* 3pz4_B* 3e33_B* 1d8e_B* ...
Back Show alignment and structure
Probab=85.16 E-value=0.32 Score=37.75 Aligned_cols=26 Identities=23% Similarity=0.239 Sum_probs=21.2
Q ss_pred CCCCCCCChhHhHHHHHHHhccc-cCCCC
Q 047909 3 QKQADRDPTHLHSVDGYILDLQM-ENGDN 30 (78)
Q Consensus 3 AGqaerDp~PLhRAaklLin~Ql-enGDw 30 (78)
+|+. |+.+++|++++|+++|+ ++|.|
T Consensus 262 lg~~--~~~~~~rl~~wL~~rQ~~~~GGf 288 (437)
T 2h6f_B 262 LKRE--RSLNLKSLLQWVTSRQMRFEGGF 288 (437)
T ss_dssp HTCG--GGSCHHHHHHHHHHTBCTTTCSB
T ss_pred cCCC--CcccHHHHHHHHHhcCCCCCCCc
Confidence 4554 55679999999999999 88877
Homologous Structure Domains
Homologous Domains Detected by HHsearch
Original result of HHsearch against SCOP70(version1.75) database
ID Alignment Graph Length
Definition
Probability
Query 78
d1w6ka1 448
Lanosterol synthase {Human (Homo sapiens) [TaxId:
99.4
d2sqca1 352
Squalene-hopene cyclase {Alicyclobacillus acidocal
99.39
d1gxma_
324
Polygalacturonic acid lyase (pectate lyase) {Cellv
96.14
d1r76a_
408
Polygalacturonic acid lyase (pectate lyase) {Azosp
94.68
d2sqca1
352
Squalene-hopene cyclase {Alicyclobacillus acidocal
94.05
d2sqca2
271
Squalene-hopene cyclase {Alicyclobacillus acidocal
91.44
d1w6ka1
448
Lanosterol synthase {Human (Homo sapiens) [TaxId:
85.39
d1w6ka2
279
Lanosterol synthase {Human (Homo sapiens) [TaxId:
81.65
>d1w6ka1 a.102.4.2 (A:6-99,A:379-732) Lanosterol synthase {Human (Homo sapiens) [TaxId: 9606]}
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class: All alpha proteins
fold: alpha/alpha toroid
superfamily: Terpenoid cyclases/Protein prenyltransferases
family: Terpene synthases
domain: Lanosterol synthase
species: Human (Homo sapiens) [TaxId: 9606]
Probab=99.40 E-value=2.4e-14 Score=109.15 Aligned_cols=53 Identities=19% Similarity=0.284 Sum_probs=45.6
Q ss_pred CCCCCCCCChhHhHHHHHHHhccccCCCCCccceeeeec-cchhhhhhhhhhhhhhhhhhe
Q 047909 2 LQKQADRDPTHLHSVDGYILDLQMENGDNPDDTMNIWYA-MCGLLVIMIKNAIVENKFRLL 61 (78)
Q Consensus 2 ~AGqaerDp~PLhRAaklLin~QlenGDwPQqeI~G~f~-~c~l~y~~yr~a~~~n~f~l~ 61 (78)
.+| +++.++++||+++|+++|.+||+||||+++|.|+ .|+|+|.+| +|+|||.
T Consensus 377 ~ag--~~~~~~v~rgv~~L~~~Q~~~G~W~~~~~~g~f~~~~~l~Y~~Y-----~~~fpl~ 430 (448)
T d1w6ka1 377 AVR--HPDIEAQERGVRCLLEKQLPNGDWPQENIAGVFNKSCAISYTSY-----RNIFPIW 430 (448)
T ss_dssp HTT--CSCHHHHHHHHHHHHHHCCTTSCCCCCSCCEEETTTEEECCTTH-----HHHHHHH
T ss_pred hcC--CCCcHHHHHHHHHHHHccCCCCCCCCCceeeeecccceeecCCc-----chHHHHH
Confidence 356 4566789999999999999999999999999999 888888775 5889875
>d2sqca1 a.102.4.2 (A:8-36,A:308-630) Squalene-hopene cyclase {Alicyclobacillus acidocaldarius [TaxId: 405212]}
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class: All alpha proteins
fold: alpha/alpha toroid
superfamily: Terpenoid cyclases/Protein prenyltransferases
family: Terpene synthases
domain: Squalene-hopene cyclase
species: Alicyclobacillus acidocaldarius [TaxId: 405212]
Probab=99.39 E-value=2.5e-14 Score=103.68 Aligned_cols=53 Identities=15% Similarity=0.100 Sum_probs=45.6
Q ss_pred CCCCCCCCChhHhHHHHHHHhccccCCCCCccceeee-ec-cchhhhhhhhhhhhhhhhhhe
Q 047909 2 LQKQADRDPTHLHSVDGYILDLQMENGDNPDDTMNIW-YA-MCGLLVIMIKNAIVENKFRLL 61 (78)
Q Consensus 2 ~AGqaerDp~PLhRAaklLin~QlenGDwPQqeI~G~-f~-~c~l~y~~yr~a~~~n~f~l~ 61 (78)
.+|++++ ++++||+++|++.|.+||+|||++++|+ |+ .|+++|+.|+ |+|||+
T Consensus 287 ~a~~~~~--~~i~ra~~~L~~~Q~~dG~w~~~~~~g~~f~~~~~~~y~~y~-----~~f~~~ 341 (352)
T d2sqca1 287 AGGRAES--EAARRGVQYLVETQRPDGGWDEPYYTGTGFPGDFYLGYTMYR-----HVFPTL 341 (352)
T ss_dssp HTTCSSS--HHHHHHHHHHHHHCCTTSCCCCCSCCEEEETTTEEEEETTHH-----HHHHHH
T ss_pred hcCCCCc--HHHHHHHHHHHHhcCCCCCCCCcceecccccccceecccccc-----hHHHHH
Confidence 4566654 4699999999999999999999999998 77 8999988874 789875
>d1gxma_ a.102.5.1 (A:) Polygalacturonic acid lyase (pectate lyase) {Cellvibrio cellulosa [TaxId: 155077]}
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class: All alpha proteins
fold: alpha/alpha toroid
superfamily: Family 10 polysaccharide lyase
family: Family 10 polysaccharide lyase
domain: Polygalacturonic acid lyase (pectate lyase)
species: Cellvibrio cellulosa [TaxId: 155077]
Probab=96.14 E-value=0.0011 Score=49.15 Aligned_cols=23 Identities=13% Similarity=0.323 Sum_probs=21.4
Q ss_pred hhHhHHHHHHHhccccCCCCCcc
Q 047909 11 THLHSVDGYILDLQMENGDNPDD 33 (78)
Q Consensus 11 ~PLhRAaklLin~QlenGDwPQq 33 (78)
+.+.||+.+|+++|.+||.|||=
T Consensus 89 ~A~~Rgi~~LL~~Q~~nGGWpqf 111 (324)
T d1gxma_ 89 DAVRKAANFLVNSQYSTGALPQF 111 (324)
T ss_dssp HHHHHHHHHHHHHCCTTSCCBSE
T ss_pred HHHHHHHHHHHhhccCCCCcccc
Confidence 56899999999999999999994
>d1r76a_ a.102.5.1 (A:) Polygalacturonic acid lyase (pectate lyase) {Azospirillum irakense [TaxId: 34011]}
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class: All alpha proteins
fold: alpha/alpha toroid
superfamily: Family 10 polysaccharide lyase
family: Family 10 polysaccharide lyase
domain: Polygalacturonic acid lyase (pectate lyase)
species: Azospirillum irakense [TaxId: 34011]
Probab=94.68 E-value=0.007 Score=45.76 Aligned_cols=21 Identities=29% Similarity=0.314 Sum_probs=20.1
Q ss_pred hHhHHHHHHHhccccCCCCCc
Q 047909 12 HLHSVDGYILDLQMENGDNPD 32 (78)
Q Consensus 12 PLhRAaklLin~QlenGDwPQ 32 (78)
.+.||+.+|+++|-+||-|||
T Consensus 176 a~~~~~~~ll~~Q~~~Ggwpq 196 (408)
T d1r76a_ 176 AALKGIEYLLASQFPNGGWPQ 196 (408)
T ss_dssp HHHHHHHHHHHHSCTTSCCBS
T ss_pred HHHHHHHHHHHhhCCCCCccc
Confidence 588999999999999999999
>d2sqca1 a.102.4.2 (A:8-36,A:308-630) Squalene-hopene cyclase {Alicyclobacillus acidocaldarius [TaxId: 405212]}
Back Show information, alignment and structure
class: All alpha proteins
fold: alpha/alpha toroid
superfamily: Terpenoid cyclases/Protein prenyltransferases
family: Terpene synthases
domain: Squalene-hopene cyclase
species: Alicyclobacillus acidocaldarius [TaxId: 405212]
Probab=94.05 E-value=0.013 Score=41.22 Aligned_cols=27 Identities=19% Similarity=0.159 Sum_probs=23.6
Q ss_pred hhHhHHHHHHHhccccCCCCCccceee
Q 047909 11 THLHSVDGYILDLQMENGDNPDDTMNI 37 (78)
Q Consensus 11 ~PLhRAaklLin~QlenGDwPQqeI~G 37 (78)
..|+||+++|+++|.+||.|.|..+.-
T Consensus 6 ~~i~rav~~L~~~q~~dG~w~~~~~s~ 32 (352)
T d2sqca1 6 RTLDRAVEYLLSCQKDEGYWWGPLISP 32 (352)
T ss_dssp HHHHHHHHHHHHHCCTTSCCCCCECCH
T ss_pred HHHHHHHHHHHHhcCCCCceeCCCCCc
Confidence 359999999999999999999876643
>d2sqca2 a.102.4.2 (A:37-307) Squalene-hopene cyclase {Alicyclobacillus acidocaldarius [TaxId: 405212]}
Back Show information, alignment and structure
class: All alpha proteins
fold: alpha/alpha toroid
superfamily: Terpenoid cyclases/Protein prenyltransferases
family: Terpene synthases
domain: Squalene-hopene cyclase
species: Alicyclobacillus acidocaldarius [TaxId: 405212]
Probab=91.44 E-value=0.047 Score=37.34 Aligned_cols=25 Identities=24% Similarity=0.346 Sum_probs=22.3
Q ss_pred CCChhHhHHHHHHHhccccCCCCCc
Q 047909 8 RDPTHLHSVDGYILDLQMENGDNPD 32 (78)
Q Consensus 8 rDp~PLhRAaklLin~QlenGDwPQ 32 (78)
.|...+.+++++|.+.|.+||.|..
T Consensus 20 ~~~~~~~~~~~~l~~~Q~~dGgW~~ 44 (271)
T d2sqca2 20 VDRDRMEKIRRYLLHEQREDGTWAL 44 (271)
T ss_dssp CCHHHHHHHHHHHHHHSCTTSCCCS
T ss_pred CCHHHHHHHHHHHHHccCCCCCccC
Confidence 4666799999999999999999975
>d1w6ka1 a.102.4.2 (A:6-99,A:379-732) Lanosterol synthase {Human (Homo sapiens) [TaxId: 9606]}
Back Show information, alignment and structure
class: All alpha proteins
fold: alpha/alpha toroid
superfamily: Terpenoid cyclases/Protein prenyltransferases
family: Terpene synthases
domain: Lanosterol synthase
species: Human (Homo sapiens) [TaxId: 9606]
Probab=85.39 E-value=0.18 Score=37.15 Aligned_cols=21 Identities=14% Similarity=0.030 Sum_probs=19.2
Q ss_pred hHhHHHHHHHhccccCCCCCc
Q 047909 12 HLHSVDGYILDLQMENGDNPD 32 (78)
Q Consensus 12 PLhRAaklLin~QlenGDwPQ 32 (78)
.|.||+++|.+.|.+||.|..
T Consensus 275 ~i~ral~yL~~~Q~~DGsW~g 295 (448)
T d1w6ka1 275 TLTQGLEFCRRQQRADGSWEG 295 (448)
T ss_dssp HHHHHHHHHHHHSCTTSCCCC
T ss_pred HHHHHHHHHHccCCCCCcccc
Confidence 489999999999999999964
>d1w6ka2 a.102.4.2 (A:100-378) Lanosterol synthase {Human (Homo sapiens) [TaxId: 9606]}
Back Show information, alignment and structure
class: All alpha proteins
fold: alpha/alpha toroid
superfamily: Terpenoid cyclases/Protein prenyltransferases
family: Terpene synthases
domain: Lanosterol synthase
species: Human (Homo sapiens) [TaxId: 9606]
Probab=81.65 E-value=0.44 Score=33.88 Aligned_cols=44 Identities=9% Similarity=0.017 Sum_probs=28.9
Q ss_pred CCChhHhHHHHHHHhccccCCCCCccceeeeec--cchhhhhhhhhh
Q 047909 8 RDPTHLHSVDGYILDLQMENGDNPDDTMNIWYA--MCGLLVIMIKNA 52 (78)
Q Consensus 8 rDp~PLhRAaklLin~QlenGDwPQqeI~G~f~--~c~l~y~~yr~a 52 (78)
.|.+-..+++++|.+.|.+||-|..- +.|... .-.+.|...|-+
T Consensus 20 ~~~e~~~e~~ryL~~~Q~~DGgWg~~-~~g~s~i~~T~~ay~ALrl~ 65 (279)
T d1w6ka2 20 LPAGYREEIVRYLRSVQLPDGGWGLH-IEDKSTVFGTALNYVSLRIL 65 (279)
T ss_dssp CCTTHHHHHHHHHHHHSCTTSCBCSB-TTSCCBHHHHHHHHHHHHHT
T ss_pred CCHHHHHHHHHHHHHhhcCCCCccCC-CCCCccHHHHHHHHHHHHHh
Confidence 34445788999999999999999742 234322 224555555544