Citrus Sinensis ID: 037007


Local Sequence Feature Prediction

Prediction and (Method)Result
Residue Number Marker
Protein Sequence ?
Secondary Structure (PSIPRED) ?
Secondary Structure Prediction (SSPRO) ?
Coil and Loop (DISEMBL) ?
Flexible Loop (DISEMBL) ?
Low Complexity Region (SEG) ?
Disordered region (IsUnstruct) ?
Disordered Region (DISOPRED) ?
Disordered Region (DISEMBL) ?
Disordered Region (DISPRO) ?
Transmembrane Helix (TMHMM) ?
Transmembrane Helix (HMMTOP) ?
Transmembrane Helix (MEMSAT) ?
TM Helix, Signal Peptide (MEMSAT_SVM) ?
TM Helix, Signal Peptide (Phobius) ?
Signal Peptide (SignalP HMM Mode) ?
Signal Peptide (SignalP NN Mode) ?
Coiled Coils (COILS) ?
Positional Conservation ?
 
--------10--------20--------30--------40--------50--------60--------70--------80--------90-------100-------110-------120-------130-------140-------150--
MRLLAPTLFLLYCLLFSLRQRPTLAAKQSYVVYLGAHSHGPELSSVDLKRATQSHYEFLGSYLGSNENPEEAIFYSYTRHINGFAAKLDDAVAAEIAKHPKVLSVFLSKEKKLHTTHSWEFLGLEQNGRIPPNSIWEKARYGEDAIIGNIDS
cccHHHHHHHHHHHHHHHHcccccccccEEEEEEccccccccccccHHHHHHHHHHHHHHHHHcccccccccEEEEEccccEEEEEEccHHHHHHHHccccEEEEEcccccccccccccccccccccccccccccccccccccccEEEEccc
cHHHHHHHHHHHHHHHHHHccHccccccEEEEEEcccccccccccccHHHHHHHHHHHHHHHcccHHHHHHHHEEEccccccEEEEEccHHHHHHHHccccEEEEEccccEEEcccccHHHcccccccccccccHHHHccccccEEEEEEcc
MRLLAPTLFLLYCLLFSlrqrptlaakQSYVVYLGAhshgpelssvdlkRATQSHYEFLGsylgsnenpeeaIFYSYTRHINGFAAKLDDAVAAEIAKHPKVLSVFLSKEKKLHTTHSWeflgleqngrippnsiwekarygedaiignids
MRLLAPTLFLLYCLLFSLRQRPTLAAKQSYVVYLGAHSHGPELSSVDLKRATQSHYEFLGSYLGSNENPEEAIFYSYTRHINGFAAKLDDAVAAEIAKHPKVLSVFLSKEKKLHTTHSweflgleqngrippnsiwekarygedaiignids
MRllaptlfllycllfslRQRPTLAAKQSYVVYLGAHSHGPELSSVDLKRATQSHYEFLGSYLGSNENPEEAIFYSYTRHINGFAAKLDDAVAAEIAKHPKVLSVFLSKEKKLHTTHSWEFLGLEQNGRIPPNSIWEKARYGEDAIIGNIDS
***LAPTLFLLYCLLFSLRQRPTLAAKQSYVVYLGAHSHGP*L**VDLKRATQSHYEFLGSYLGSNENPEEAIFYSYTRHINGFAAKLDDAVAAEIAKHPKVLSVFLSKEKKLHTTHSWEFLGLEQNGRIPPNSIWEKARYGEDAII*****
***LAPTLFLLYCLLFSLRQRPTLAAKQSYVVYLG***************ATQSHYEF**************IFYSYTRHINGFAAKLDDAVAAEIAKHPKVLSVFLSKEKKLHTTHSWEFLGLEQNG***********RYGEDAIIGNIDS
MRLLAPTLFLLYCLLFSLRQRPTLAAKQSYVVYLGAHSHGPELSSVDLKRATQSHYEFLGSYLGSNENPEEAIFYSYTRHINGFAAKLDDAVAAEIAKHPKVLSVFLSKEKKLHTTHSWEFLGLEQNGRIPPNSIWEKARYGEDAIIGNIDS
MRLLAPTLFLLYCLLFSLRQRPTLAAKQSYVVYLGAH******SSVDLKRATQSHYEFLGSYLGSNENPEEAIFYSYTRHINGFAAKLDDAVAAEIAKHPKVLSVFLSKEKKLHTTHSWEFLGLEQNGRIPPNSIWEKARYGEDAIIGNIDS
oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
oooooooooooooooooooooHHHHHHHHHHHHHHHHHHHHiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooohhhhhhhhhhhhhhhhiiii
SSSSSSSSSSSSSSSSSSSSSSSSSooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
SSSSSSSSSSSSSSSSSSSSSSSSSSoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
MRLLAPTLFLLYCLLFSLRQRPTLAAKQSYVVYLGAHSHGPELSSVDLKRATQSHYEFLGSYLGSNENPEEAIFYSYTRHINGFAAKLDDAVAAEIAKHPKVLSVFLSKEKKLHTTHSWEFLGLEQNGRIPPNSIWEKARYGEDAIIGNIDS
no confident homologs detected

Close Homologs for Annotation Transfer

Close Homologs in SWISS-PROT Database Detected by BLAST ?

ID ?Alignment graph ?Length ? Definition ? RBH(Q2H) ? RBH(H2Q) ? Q cover ? H cover ? Identity ? E-value ?
Query152 2.2.26 [Sep-21-2011]
Q39547 731 Cucumisin OS=Cucumis melo N/A no 0.736 0.153 0.322 8e-12
Q9LLL8 749 Xylem serine proteinase 1 no no 0.743 0.150 0.338 5e-11
O64495 775 Subtilisin-like protease no no 0.875 0.171 0.315 9e-10
O65351 757 Subtilisin-like protease no no 0.888 0.178 0.293 4e-06
>sp|Q39547|CUCM1_CUCME Cucumisin OS=Cucumis melo PE=1 SV=1 Back     alignment and function desciption
 Score = 69.3 bits (168), Expect = 8e-12,   Method: Composition-based stats.
 Identities = 41/127 (32%), Positives = 66/127 (51%), Gaps = 15/127 (11%)

Query: 26  AKQSYVVYLGAHSHGPELSSVDLKRATQSHYEFLGSYLGSNENPEEAIFYSYTRHINGFA 85
            K  Y+VY+G     P+        A   H   L   +GS   PE ++ ++Y R  NGFA
Sbjct: 30  GKNIYIVYMGRKLEDPD-------SAHLHHRAMLEQVVGSTFAPE-SVLHTYKRSFNGFA 81

Query: 86  AKLDDAVAAEIAKHPKVLSVFLSKEKKLHTTHSWEFLGLEQNGRIPPNSIWEKARYGEDA 145
            KL +  A +IA    V+SVFL++  +LHTT SW+FLG        P ++  +++   + 
Sbjct: 82  VKLTEEEAEKIASMEGVVSVFLNEMNELHTTRSWDFLGF-------PLTVPRRSQVESNI 134

Query: 146 IIGNIDS 152
           ++G +D+
Sbjct: 135 VVGVLDT 141





Cucumis melo (taxid: 3656)
EC: 3EC: .EC: 4EC: .EC: 2EC: 1EC: .EC: 2EC: 5
>sp|Q9LLL8|XSP1_ARATH Xylem serine proteinase 1 OS=Arabidopsis thaliana GN=XSP1 PE=2 SV=1 Back     alignment and function description
>sp|O64495|SDD1_ARATH Subtilisin-like protease SDD1 OS=Arabidopsis thaliana GN=SDD1 PE=2 SV=1 Back     alignment and function description
>sp|O65351|SUBL_ARATH Subtilisin-like protease OS=Arabidopsis thaliana GN=ARA12 PE=1 SV=1 Back     alignment and function description

Close Homologs in the Non-Redundant Database Detected by BLAST ?

GI ?Alignment Graph ?Length ? Definition ? Q cover ? H cover ? Identity ? E-value ?
Query152
224129258 769 predicted protein [Populus trichocarpa] 1.0 0.197 0.671 2e-54
255567212 771 Xylem serine proteinase 1 precursor, put 1.0 0.197 0.671 9e-53
227053577 771 subtilisin-like serine protease [Carica 1.0 0.197 0.677 3e-51
225447456 769 PREDICTED: subtilisin-like protease [Vit 1.0 0.197 0.677 7e-50
356525207 773 PREDICTED: subtilisin-like protease-like 1.0 0.196 0.647 1e-48
34148084154 subtilisin-like protein protease [Glycin 1.0 0.987 0.647 1e-48
359496838 750 PREDICTED: subtilisin-like protease-like 1.0 0.202 0.627 2e-48
356510927 773 PREDICTED: subtilisin-like protease-like 0.875 0.172 0.684 2e-48
297744927 747 unnamed protein product [Vitis vinifera] 0.953 0.194 0.650 3e-48
409032218 773 subtilisin-like protease [Glycine max] 1.0 0.196 0.640 3e-48
>gi|224129258|ref|XP_002320540.1| predicted protein [Populus trichocarpa] gi|222861313|gb|EEE98855.1| predicted protein [Populus trichocarpa] Back     alignment and taxonomy information
 Score =  216 bits (550), Expect = 2e-54,   Method: Compositional matrix adjust.
 Identities = 102/152 (67%), Positives = 123/152 (80%)

Query: 1   MRLLAPTLFLLYCLLFSLRQRPTLAAKQSYVVYLGAHSHGPELSSVDLKRATQSHYEFLG 60
           MRL +PTL LL  L  +L QRPT A+ + YVVY G HSHGP+ SS D   A  SHYEFLG
Sbjct: 1   MRLPSPTLCLLPFLFLTLVQRPTFASIKPYVVYFGGHSHGPKPSSFDANLAKDSHYEFLG 60

Query: 61  SYLGSNENPEEAIFYSYTRHINGFAAKLDDAVAAEIAKHPKVLSVFLSKEKKLHTTHSWE 120
           S+LGS E  E+AIFYSYTRHINGFAA L+D VAAEIAKHP+V+SVFL++ +K HTTHSW 
Sbjct: 61  SFLGSREFAEDAIFYSYTRHINGFAATLEDEVAAEIAKHPRVVSVFLNQGRKQHTTHSWS 120

Query: 121 FLGLEQNGRIPPNSIWEKARYGEDAIIGNIDS 152
           FLGLE++G +P +SIW+KAR+GEDAIIGN+D+
Sbjct: 121 FLGLEKDGVVPSSSIWKKARFGEDAIIGNLDT 152




Source: Populus trichocarpa

Species: Populus trichocarpa

Genus: Populus

Family: Salicaceae

Order: Malpighiales

Class:

Phylum: Streptophyta

Superkingdom: Eukaryota

>gi|255567212|ref|XP_002524587.1| Xylem serine proteinase 1 precursor, putative [Ricinus communis] gi|223536140|gb|EEF37795.1| Xylem serine proteinase 1 precursor, putative [Ricinus communis] Back     alignment and taxonomy information
>gi|227053577|gb|ACP18876.1| subtilisin-like serine protease [Carica papaya] Back     alignment and taxonomy information
>gi|225447456|ref|XP_002266728.1| PREDICTED: subtilisin-like protease [Vitis vinifera] gi|296085071|emb|CBI28486.3| unnamed protein product [Vitis vinifera] Back     alignment and taxonomy information
>gi|356525207|ref|XP_003531218.1| PREDICTED: subtilisin-like protease-like [Glycine max] gi|33621210|gb|AAQ23176.1| subtilisin-like protease [Glycine max] gi|409032216|gb|AFV08660.1| subtilisin-like protease [Glycine max] Back     alignment and taxonomy information
>gi|34148084|gb|AAQ62593.1| subtilisin-like protein protease [Glycine max] Back     alignment and taxonomy information
>gi|359496838|ref|XP_002266135.2| PREDICTED: subtilisin-like protease-like [Vitis vinifera] Back     alignment and taxonomy information
>gi|356510927|ref|XP_003524185.1| PREDICTED: subtilisin-like protease-like [Glycine max] Back     alignment and taxonomy information
>gi|297744927|emb|CBI38458.3| unnamed protein product [Vitis vinifera] Back     alignment and taxonomy information
>gi|409032218|gb|AFV08661.1| subtilisin-like protease [Glycine max] Back     alignment and taxonomy information

Prediction of Gene Ontology (GO) Terms

Close Homologs with Gene Ontology terms Detected by BLAST ?

ID ? Alignment graph ? Length ? Definition ? Q cover ? H cover ? Identity ? E-value ?
Query152
TAIR|locus:2168057 778 SBT5.4 "AT5G59810" [Arabidopsi 0.861 0.168 0.595 2.4e-38
TAIR|locus:2050215 772 AIR3 "AT2G04160" [Arabidopsis 0.848 0.167 0.595 6.3e-38
UNIPROTKB|Q8H4X8 762 OJ1136_A10.113 "Putative subti 0.809 0.161 0.536 1.3e-33
UNIPROTKB|Q6H733 799 P0026H03.20-1 "Putative subtil 0.828 0.157 0.562 1.1e-32
UNIPROTKB|Q0JIK4 375 Os01g0795400 "Os01g0795400 pro 0.809 0.328 0.393 1.7e-18
UNIPROTKB|Q7XT43 756 OSJNBb0089K24.4 "OSJNBb0089K24 0.75 0.150 0.447 4.2e-18
UNIPROTKB|Q0E256 496 Os02g0270200 "Os02g0270200 pro 0.782 0.239 0.406 1.3e-17
UNIPROTKB|Q0JIK5 722 Os01g0795200 "Os01g0795200 pro 0.776 0.163 0.377 1.7e-17
UNIPROTKB|Q6EPJ5 738 OSJNBa0033K18.27 "cDNA clone:J 0.796 0.163 0.392 9.9e-17
UNIPROTKB|Q6ERT3 735 P0693E08.30 "Putative subtilis 0.782 0.161 0.375 3.4e-16
TAIR|locus:2168057 SBT5.4 "AT5G59810" [Arabidopsis thaliana (taxid:3702)] Back     alignment and assigned GO terms
 Score = 418 (152.2 bits), Expect = 2.4e-38, P = 2.4e-38
 Identities = 78/131 (59%), Positives = 99/131 (75%)

Query:    22 PTLAAKQSYVVYLGAHSHGPELSSVDLKRATQSHYEFLGSYLGSNENPEEAIFYSYTRHI 81
             P  A K+SY+VYLG+H+H P++SS  L     SH  FL S++GS+EN +EAIFYSY RHI
Sbjct:    34 PAFALKKSYIVYLGSHAHLPQISSAHLDGVAHSHRTFLASFVGSHENAKEAIFYSYKRHI 93

Query:    82 NGFAAKLDDAVAAEIAKHPKVLSVFLSKEKKLHTTHSWEFLGLEQNGRIPPNSIWEKARY 141
             NGFAA LD+  AAEIAKHP V+SVF +K +KLHTTHSW F+ L +NG +  +S+W KA Y
Sbjct:    94 NGFAAILDENEAAEIAKHPDVVSVFPNKGRKLHTTHSWNFMLLAKNGVVHKSSLWNKAGY 153

Query:   142 GEDAIIGNIDS 152
             GED II N+D+
Sbjct:   154 GEDTIIANLDT 164




GO:0004252 "serine-type endopeptidase activity" evidence=IEA;IBA
GO:0005618 "cell wall" evidence=IBA
GO:0006508 "proteolysis" evidence=IEA;ISS
GO:0008152 "metabolic process" evidence=IBA
GO:0042802 "identical protein binding" evidence=IEA
GO:0043086 "negative regulation of catalytic activity" evidence=IEA
TAIR|locus:2050215 AIR3 "AT2G04160" [Arabidopsis thaliana (taxid:3702)] Back     alignment and assigned GO terms
UNIPROTKB|Q8H4X8 OJ1136_A10.113 "Putative subtilisin-like serine protease AIR3" [Oryza sativa Japonica Group (taxid:39947)] Back     alignment and assigned GO terms
UNIPROTKB|Q6H733 P0026H03.20-1 "Putative subtilisin-like proteinase AIR3" [Oryza sativa Japonica Group (taxid:39947)] Back     alignment and assigned GO terms
UNIPROTKB|Q0JIK4 Os01g0795400 "Os01g0795400 protein" [Oryza sativa Japonica Group (taxid:39947)] Back     alignment and assigned GO terms
UNIPROTKB|Q7XT43 OSJNBb0089K24.4 "OSJNBb0089K24.4 protein" [Oryza sativa Japonica Group (taxid:39947)] Back     alignment and assigned GO terms
UNIPROTKB|Q0E256 Os02g0270200 "Os02g0270200 protein" [Oryza sativa Japonica Group (taxid:39947)] Back     alignment and assigned GO terms
UNIPROTKB|Q0JIK5 Os01g0795200 "Os01g0795200 protein" [Oryza sativa Japonica Group (taxid:39947)] Back     alignment and assigned GO terms
UNIPROTKB|Q6EPJ5 OSJNBa0033K18.27 "cDNA clone:J013118B21, full insert sequence" [Oryza sativa Japonica Group (taxid:39947)] Back     alignment and assigned GO terms
UNIPROTKB|Q6ERT3 P0693E08.30 "Putative subtilisin-like serine proteinase" [Oryza sativa Japonica Group (taxid:39947)] Back     alignment and assigned GO terms

Prediction of Enzyme Commission (EC) Number

EC Number Prediction by Annotation Transfer from SWISS-PROT Entries ?

No confident hit for EC number transfering in SWISSPROT detected by BLAST

EC Number Prediction by Ezypred Server ?

Fail to connect to Ezypred Server

EC Number Prediction by EFICAz Software ?

No EC number assignment, probably not an enzyme!


Prediction of Functionally Associated Proteins

Functionally Associated Proteins Detected by STRING ?

Fail to connect to STRING server


Conserved Domains and Related Protein Families

Conserved Domains Detected by RPS-BLAST ?

ID ?Alignment Graph ?Length ? Definition ? E-value ?
Query152
pfam0592276 pfam05922, Inhibitor_I9, Peptidase inhibitor I9 2e-11
cd04852 307 cd04852, Peptidases_S8_3, Peptidase S8 family doma 1e-09
>gnl|CDD|203351 pfam05922, Inhibitor_I9, Peptidase inhibitor I9 Back     alignment and domain information
 Score = 56.2 bits (136), Expect = 2e-11
 Identities = 26/86 (30%), Positives = 35/86 (40%), Gaps = 10/86 (11%)

Query: 29  SYVVYLGAHSHGPELSSVDLKRATQSHYEFLGSYLGSNENPEEAIFYSYTRHINGFAAKL 88
           +Y+V          + S   K    S  E         E    +I YSY    NGFAAKL
Sbjct: 1   TYIVKFKDGVSKAAVFS-SHKSWHASSKE---------EAAGASILYSYKHGFNGFAAKL 50

Query: 89  DDAVAAEIAKHPKVLSVFLSKEKKLH 114
            +  A ++ KHP V  V   +  +LH
Sbjct: 51  TEEEAEKLRKHPDVEYVEPDQVVELH 76


This family includes the proteinase B inhibitor from Saccharomyces cerevisiae and the activation peptides from peptidases of the subtilisin family. The subtilisin propeptides are known to function as molecular chaperones, assisting in the folding of the mature peptidase, but have also been shown to act as 'temporary inhibitors'. Length = 76

>gnl|CDD|173795 cd04852, Peptidases_S8_3, Peptidase S8 family domain, uncharacterized subfamily 3 Back     alignment and domain information

Conserved Domains Detected by HHsearch ?

ID ?Alignment Graph ?Length ? Definition ? Probability ?
Query 152
PF0592282 Inhibitor_I9: Peptidase inhibitor I9; InterPro: IP 99.62
KOG1153 501 consensus Subtilisin-related protease/Vacuolar pro 98.31
KOG4266 1033 consensus Subtilisin kexin isozyme-1/site 1 protea 86.68
>PF05922 Inhibitor_I9: Peptidase inhibitor I9; InterPro: IPR010259 Peptide proteinase inhibitors can be found as single domain proteins or as single or multiple domains within proteins; these are referred to as either simple or compound inhibitors, respectively Back     alignment and domain information
Probab=99.62  E-value=5.2e-16  Score=104.50  Aligned_cols=78  Identities=29%  Similarity=0.440  Sum_probs=56.7

Q ss_pred             eEEEEeCCCCCCCCCccchhhhhhHHHHHHHHhhhCC----CCCCccceeeeeccccccccccCCHHHHHHHhCCCCEEE
Q 037007           29 SYVVYLGAHSHGPELSSVDLKRATQSHYEFLGSYLGS----NENPEEAIFYSYTRHINGFAAKLDDAVAAEIAKHPKVLS  104 (152)
Q Consensus        29 ~YIV~m~~~~~~~~~~~~~~~~~~~~H~~~l~s~~~~----~~~~~~~i~~sy~~~~~GFaa~lt~~e~~~L~~~p~V~~  104 (152)
                      +|||.|++....        .....+|.+|+.+.+.+    ......++.++|+.+||||+++|+++++++|+++|+|.+
T Consensus         1 ~YIV~~k~~~~~--------~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~y~~~~~Gfs~~l~~~~i~~L~~~p~V~~   72 (82)
T PF05922_consen    1 RYIVVFKDDASA--------ASSFSSHKSWQASILKSALKSASSINAKVLYSYDNAFNGFSAKLSEEEIEKLRKDPGVKS   72 (82)
T ss_dssp             EEEEEE-TTSTH--------HCHHHHHHHHHH----HHHHTH-TTT-EEEEEESSTSSEEEEEE-HHHHHHHHTSTTEEE
T ss_pred             CEEEEECCCCCc--------chhHHHHHHHHHHHHhhhhhhhcccCCceEEEEeeeEEEEEEEeCHHHHHHHHcCCCeEE
Confidence            699999975431        22467777777754432    122346799999999999999999999999999999999


Q ss_pred             EEcCCCcccc
Q 037007          105 VFLSKEKKLH  114 (152)
Q Consensus       105 V~~d~~~~l~  114 (152)
                      |+||+.+++|
T Consensus        73 Ve~D~~v~l~   82 (82)
T PF05922_consen   73 VEPDQVVSLH   82 (82)
T ss_dssp             EEEECEEEE-
T ss_pred             EEeCceEecC
Confidence            9999998875



In many cases they are synthesised as part of a larger precursor protein, either as a prepropeptide or as an N-terminal domain associated with an inactive peptidase or zymogen. This domain prevents access of the substrate to the active site. Removal of the N-terminal inhibitor domain either by interaction with a second peptidase or by autocatalytic cleavage activates the zymogen. Other inhibitors interact direct with proteinases using a simple noncovalent lock and key mechanism; while yet others use a conformational change-based trapping mechanism that depends on their structural and thermodynamic properties. Limited proteolysis of most large protein precursors is carried out in vivo by the subtilisin-like pro-protein convertases. Many important biological processes such as peptide hormone synthesis, viral protein processing and receptor maturation involve proteolytic processing by these enzymes []. The subtilisin-serine protease (SRSP) family hormone and pro-protein convertases (furin, PC1/3, PC2, PC4, PACE4, PC5/6, and PC7/7/LPC) act within the secretory pathway to cleave polypeptide precursors at specific basic sites, generating their biologically active forms. Serum proteins, pro-hormones, receptors, zymogens, viral surface glycoproteins, bacterial toxins, amongst others, are activated by this route []. The SRSPs share the same domain structure, including a signal peptide, the pro-peptide, the catalytic domain, the P/middle or homo B domain, and the C terminus. Proteinase propeptide inhibitors (sometimes refered to as activation peptides) are responsible for the modulation of folding and activity of the pro-enzyme or zymogen. The pro-segment docks into the enzyme moiety shielding the substrate binding site, thereby promoting inhibition of the enzyme. Several such propeptides share a similar topology [], despite often low sequence identities []. The propeptide region has an open-sandwich antiparallel-alpha/antiparallel-beta fold, with two alpha-helices and four beta-strands with a (beta/alpha/beta)x2 topology. This group of sequences contain the propeptide domain at the N terminus of peptidases belonging to MEROPS family S8A, subtilisins. A number of the members of this group of sequences belong to MEROPS inhibitor family I9, clan I-. The propeptide is removed by proteolytic cleavage; removal activating the enzyme.; GO: 0004252 serine-type endopeptidase activity, 0042802 identical protein binding, 0043086 negative regulation of catalytic activity; PDB: 3CNQ_P 1SPB_P 3CO0_P 1ITP_A 1V5I_B 1SCJ_B 3P5B_P 2XTJ_P 2W2M_P 2P4E_P ....

>KOG1153 consensus Subtilisin-related protease/Vacuolar protease B [Posttranslational modification, protein turnover, chaperones] Back     alignment and domain information
>KOG4266 consensus Subtilisin kexin isozyme-1/site 1 protease, subtilase superfamily [Posttranslational modification, protein turnover, chaperones] Back     alignment and domain information

Homologous Structure Templates

Structure Templates Detected by BLAST ?

No homologous structure with e-value below 0.005

Structure Templates Detected by RPS-BLAST ?

ID ?Alignment Graph ?Length ? Definition ? E-value ?
Query152
3vta_A 621 Cucumisin; subtilisin-like fold, serine protease, 4e-10
3i6s_A 649 Subtilisin-like protease; PA-domain, FN3-domain, h 4e-10
2p4e_P 692 Proprotein convertase subtilisin/kexin type 9; pro 1e-05
2w2n_P114 Proprotein convertase subtilisin/kexin type 9; hyd 4e-05
2qtw_A124 Proprotein convertase subtilisin/kexin type 9 Pro; 1e-04
>3vta_A Cucumisin; subtilisin-like fold, serine protease, hydrolase; HET: DFP NAG FUC BMA MAN; 2.75A {Cucumis melo} Length = 621 Back     alignment and structure
 Score = 55.8 bits (134), Expect = 4e-10
 Identities = 10/38 (26%), Positives = 21/38 (55%), Gaps = 7/38 (18%)

Query: 115 TTHSWEFLGLEQNGRIPPNSIWEKARYGEDAIIGNIDS 152
           TT SW+FLG        P ++  +++   + ++G +D+
Sbjct: 1   TTRSWDFLGF-------PLTVPRRSQVESNIVVGVLDT 31


>3i6s_A Subtilisin-like protease; PA-domain, FN3-domain, hydrolase; HET: NAG FUC; 2.50A {Solanum lycopersicum} PDB: 3i74_A* Length = 649 Back     alignment and structure
>2p4e_P Proprotein convertase subtilisin/kexin type 9; protease, LDL receptor, LDL, endocytosis, hydrol; 1.98A {Homo sapiens} Length = 692 Back     alignment and structure
>2w2n_P Proprotein convertase subtilisin/kexin type 9; hydrolase-receptor complex, PCSK9, proprotein converta low-density lipoprotein receptor, EGF; 2.30A {Homo sapiens} PDB: 2w2m_P 2w2o_P 2w2p_P 2w2q_P 2xtj_P Length = 114 Back     alignment and structure
>2qtw_A Proprotein convertase subtilisin/kexin type 9 Pro; coronary heart disease, hypercholest low density lipoprotein receptor, autocatalytic cleavage; HET: NAG; 1.90A {Homo sapiens} PDB: 3m0c_A 2pmw_A 3h42_A 3bps_P 3gcw_P 3gcx_P 3p5b_P 3p5c_P Length = 124 Back     alignment and structure

Structure Templates Detected by HHsearch ?

ID ?Alignment Graph ?Length ? Definition ? Probability ?
Query152
2w2n_P114 Proprotein convertase subtilisin/kexin type 9; hyd 99.7
3cnq_P80 Subtilisin BPN'; uncleaved, proenzyme, substrate c 99.59
2p4e_P 692 Proprotein convertase subtilisin/kexin type 9; pro 99.55
2qtw_A124 Proprotein convertase subtilisin/kexin type 9 Pro; 99.51
1v5i_B76 POIA1, IA-1=serine proteinase inhibitor; protease- 99.4
3afg_A 539 Subtilisin-like serine protease; propeptide, therm 99.05
2z2z_A 395 TK-subtilisin precursor; thermococcus kodakaraensi 99.01
3t41_A 471 Epidermin leader peptide processing serine protea; 98.98
1r6v_A 671 Subtilisin-like serine protease; sandwich domain, 97.79
2z30_B65 TK-subtilisin; thermococcus kodakaraensis, hydrola 97.67
2oxa_A 600 Extracellular serine protease; kexin, hydrolase; 1 93.65
>2w2n_P Proprotein convertase subtilisin/kexin type 9; hydrolase-receptor complex, PCSK9, proprotein converta low-density lipoprotein receptor, EGF; 2.30A {Homo sapiens} PDB: 2w2m_P 2w2o_P 2w2p_P 2w2q_P 2xtj_P Back     alignment and structure
Probab=99.70  E-value=8.6e-18  Score=120.82  Aligned_cols=78  Identities=17%  Similarity=0.144  Sum_probs=65.3

Q ss_pred             CCceEEEEeCCCCCCCCCccchhhhhhHHHHHHHHhhhCCCCCCccceeeeeccccccccccCCHHHHHHHhCCCCEEEE
Q 037007           26 AKQSYVVYLGAHSHGPELSSVDLKRATQSHYEFLGSYLGSNENPEEAIFYSYTRHINGFAAKLDDAVAAEIAKHPKVLSV  105 (152)
Q Consensus        26 ~~~~YIV~m~~~~~~~~~~~~~~~~~~~~H~~~l~s~~~~~~~~~~~i~~sy~~~~~GFaa~lt~~e~~~L~~~p~V~~V  105 (152)
                      .+++|||+|++...         ......|++|+.+++.+. ....++.|+|+++||||+|+|+++++++|+++|+|.+|
T Consensus        36 ip~~YIV~lk~~~~---------~~~~~~h~~~l~s~~~~~-~~~~~i~~sY~~~~~GFaa~Lt~~~~~~L~~~P~V~~V  105 (114)
T 2w2n_P           36 LPGTYVVVLKEETH---------LSQSERTARRLQAQAARR-GYLTKILHVFHGLLPGFLVKMSGDLLELALKLPHVDYI  105 (114)
T ss_dssp             EEEEEEEEECTTCC---------HHHHHHHHHHHHHHHHHT-TCCCEEEEEECSSSSEEEEECCGGGHHHHHTSTTEEEE
T ss_pred             CCCcEEEEECCCCC---------HHHHHHHHHHHHHHhhhc-ccCCceEEEecccceEEEEEcCHHHHHHHHcCCCccEE
Confidence            46799999996532         345668999999987652 22357999999999999999999999999999999999


Q ss_pred             EcCCCccc
Q 037007          106 FLSKEKKL  113 (152)
Q Consensus       106 ~~d~~~~l  113 (152)
                      |||+.+++
T Consensus       106 E~D~~v~~  113 (114)
T 2w2n_P          106 EEDSSVFA  113 (114)
T ss_dssp             EEEEEEEE
T ss_pred             EeCceEec
Confidence            99998764



>3cnq_P Subtilisin BPN'; uncleaved, proenzyme, substrate complex, hydrolase, metal- binding, protease, secreted, serine protease, sporulation; 1.71A {Bacillus amyloliquefaciens} PDB: 3bgo_P 3co0_P 1spb_P 1scj_B Back     alignment and structure
>2p4e_P Proprotein convertase subtilisin/kexin type 9; protease, LDL receptor, LDL, endocytosis, hydrol; 1.98A {Homo sapiens} Back     alignment and structure
>2qtw_A Proprotein convertase subtilisin/kexin type 9 Pro; coronary heart disease, hypercholest low density lipoprotein receptor, autocatalytic cleavage; HET: NAG; 1.90A {Homo sapiens} PDB: 3m0c_A 2pmw_A 3h42_A 3bps_P 3gcw_P 3gcx_P 3p5b_P 3p5c_P Back     alignment and structure
>1v5i_B POIA1, IA-1=serine proteinase inhibitor; protease-inhibitor complex, subtilisin, hydrolase-Pro binding complex; 1.50A {Pleurotus ostreatus} SCOP: d.58.3.2 PDB: 1itp_A Back     alignment and structure
>3afg_A Subtilisin-like serine protease; propeptide, thermococcus kodakaraensis, hydrolas protease; 2.00A {Thermococcus kodakarensis} Back     alignment and structure
>2z2z_A TK-subtilisin precursor; thermococcus kodakaraensis, hydrolase; 1.87A {Thermococcus kodakarensis} PDB: 2e1p_A 2zwp_A 2zwo_A Back     alignment and structure
>3t41_A Epidermin leader peptide processing serine protea; structural genomics, center for structural genomics of infec diseases, csgid; 1.95A {Staphylococcus aureus} PDB: 3qfh_A Back     alignment and structure
>1r6v_A Subtilisin-like serine protease; sandwich domain, propeptide, hydrolase; 1.70A {Fervidobacterium pennivorans} SCOP: c.41.1.1 Back     alignment and structure
>2z30_B TK-subtilisin; thermococcus kodakaraensis, hydrolase; 1.65A {Thermococcus kodakarensis} PDB: 2z2y_B 3a3p_B 2z56_B 2z58_B 2z57_B 3a3n_B 3a3o_B Back     alignment and structure

Homologous Structure Domains

Structure Domains Detected by RPS-BLAST ?

No hit with e-value below 0.005

Homologous Domains Detected by HHsearch ?

ID ?Alignment Graph ?Length ? Definition ? Probability ?
Query152
d1v5ib172 Proteinase A inhibitor 1, POIA1 {Oyster mushroom ( 99.39
d1scjb_71 Subtilisin prosegment {Bacillus subtilis [TaxId: 1 99.35
d1r6va_ 671 Fervidolysin {Fervidobacterium pennivorans [TaxId: 97.13
d2id4a2 339 Kexin, N-terminal domain {Baker's yeast (Saccharom 85.02
>d1v5ib1 d.58.3.2 (B:1-72) Proteinase A inhibitor 1, POIA1 {Oyster mushroom (Pleurotus ostreatus) [TaxId: 5322]} Back     information, alignment and structure
class: Alpha and beta proteins (a+b)
fold: Ferredoxin-like
superfamily: Protease propeptides/inhibitors
family: Subtilase propeptides/inhibitors
domain: Proteinase A inhibitor 1, POIA1
species: Oyster mushroom (Pleurotus ostreatus) [TaxId: 5322]
Probab=99.39  E-value=2.4e-13  Score=88.63  Aligned_cols=68  Identities=12%  Similarity=0.111  Sum_probs=54.9

Q ss_pred             CceEEEEeCCCCCCCCCccchhhhhhHHHHHHHHhhhCCCCCCccceeeeec-cccccccccCCHHHHHHHhCCCC--EE
Q 037007           27 KQSYVVYLGAHSHGPELSSVDLKRATQSHYEFLGSYLGSNENPEEAIFYSYT-RHINGFAAKLDDAVAAEIAKHPK--VL  103 (152)
Q Consensus        27 ~~~YIV~m~~~~~~~~~~~~~~~~~~~~H~~~l~s~~~~~~~~~~~i~~sy~-~~~~GFaa~lt~~e~~~L~~~p~--V~  103 (152)
                      .+.|||.|++...         ......|..|+....       ..+.+.|. ++|||||++|++++++.|+++|+  |.
T Consensus         2 aG~YIVvlK~~~~---------~~~~~~~~~~~~~~~-------~~~~~~~~~~~~~GFaa~l~e~~l~~lr~~p~~~V~   65 (72)
T d1v5ib1           2 AGKFIVIFKNDVS---------EDKIRETKDEVIAEG-------GTITNEYNMPGMKGFAGELTPQSLTKFQGLQGDLID   65 (72)
T ss_dssp             CEEEEEEECTTCC---------HHHHHHHHHHHHHHT-------CCCCEEEEETTEEEEEEEECHHHHHHHHHTBTTTEE
T ss_pred             CccEEEEECCCCC---------HHHHHHHHHHHHhcC-------CceEEEEeeeeeeEEEEecCHHHHHHHHhCCCCCCc
Confidence            4789999997543         456678888887642       34677887 79999999999999999999665  99


Q ss_pred             EEEcCCC
Q 037007          104 SVFLSKE  110 (152)
Q Consensus       104 ~V~~d~~  110 (152)
                      +||+|++
T Consensus        66 yVE~D~V   72 (72)
T d1v5ib1          66 SIEEDHV   72 (72)
T ss_dssp             EEEECCE
T ss_pred             eECCCCC
Confidence            9999974



>d1scjb_ d.58.3.2 (B:) Subtilisin prosegment {Bacillus subtilis [TaxId: 1423]} Back     information, alignment and structure
>d1r6va_ c.41.1.1 (A:) Fervidolysin {Fervidobacterium pennivorans [TaxId: 93466]} Back     information, alignment and structure
>d2id4a2 c.41.1.1 (A:122-460) Kexin, N-terminal domain {Baker's yeast (Saccharomyces cerevisiae) [TaxId: 4932]} Back     information, alignment and structure