Citrus Sinensis ID: 035532


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--
MAKLARALILSLLLLSITASVNGYDRLVGGRSEVKDVKKNKEVQELGKFSVEEFNRSQQRQGKVIRNVAFGRLRFSQVLEAQKQVVSGIKYYLTIEATTGENGEIQMFDSIV
cHHHHHHHHHHHHHHHHHHHccccccccccEEEcccccccHHHHHHHHHHHHHHHHHcccccccccccccccEEEEEEEEEEEEEEEEEEEEEEEEEEEccccccccEEEEc
cHHHHHHHHHHHHHHHHHHHHcccccEEccEEEcccccccHHHHHHHHHHHHHHHHHHHcccccccccccccEEEEEEEEcHHEEHccEEEEEEEEEEccccccEEEEEEEc
MAKLARALILSLLLLSITASvngydrlvggrsevkdvkknkevqeLGKFSVEEFNRSQQRQGKVIRNVAFGRLRFSQVLEAQKQVVSGIKYYLTIeattgengeiqMFDSIV
MAKLARALILSLLLLSITASVNGYDRLvggrsevkdvkknkevqelgkfsveefnrsqqrqgkvirnvAFGRLRFSQVLEAQKQVVSGIKYYLTieattgengeiqmFDSIV
MAKlaralilsllllsiTASVNGYDRLVGGRSEVKDVKKNKEVQELGKFSVEEFNRSQQRQGKVIRNVAFGRLRFSQVLEAQKQVVSGIKYYLTIEATTGENGEIQMFDSIV
****ARALILSLLLLSITASVNGYDRLVGG*******************************GKVIRNVAFGRLRFSQVLEAQKQVVSGIKYYLTIEATTG************
*****RALILSLLLLSITASVNGYDRLVGGRSEVKDVKKNKEVQELGKFSVEEFNRSQQR*****RNVAFGRLRFSQVLEAQKQVVSGIKYYLTIEATTGENGEIQMFDSIV
MAKLARALILSLLLLSITASVNGYDRLVGGRSEVKDVKKNKEVQELGKFSVEEFNRSQQRQGKVIRNVAFGRLRFSQVLEAQKQVVSGIKYYLTIEATTGENGEIQMFDSIV
*AKLARALILSLLLLSITASVNGYDRLVGGRSEVKDVKKNKEVQELGKFSVEEFNRSQQRQ*******AFGRLRFSQVLEAQKQVVSGIKYYLTIEATTGENGEIQMFDSIV
oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
iiiiiiHHHHHHHHHHHHHHHHHooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
oooooooHHHHHHHHHHHHHHHHHHHiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
SSSSSSSSSSSSSiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiihhhhhhhhhhhhhhhhoooooooooooooooooooo
SSSSSSSSSSSSSSSSSSSSSSSooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
SSSSSSSSSSSSSSSSSSSSSSSSoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
MAKLARALILSLLLLSITASVNGYDRLVGGRSEVKDVKKNKEVQELGKFSVEEFNRSQQRQGKVIRNVAFGRLRFSQVLEAQKQVVSGIKYYLTIEATTGENGEIQMFDSIV
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 ?
Query112 2.2.26 [Sep-21-2011]
Q8L5T9147 Cysteine proteinase inhib yes no 0.892 0.680 0.409 2e-15
Q10993101 Cysteine proteinase inhib N/A no 0.714 0.792 0.465 7e-15
P0C579151 Cysteine proteinase inhib yes no 0.758 0.562 0.436 4e-13
A2XS65151 Cysteine proteinase inhib N/A no 0.758 0.562 0.436 4e-13
Q5N806158 Cysteine proteinase inhib no no 0.678 0.481 0.453 3e-12
Q0JGM8148 Cysteine proteinase inhib no no 0.642 0.486 0.512 4e-10
Q10Q47117 Putative cysteine protein no no 0.526 0.504 0.385 4e-05
Q8H0X6 234 Cysteine proteinase inhib no no 0.803 0.384 0.308 6e-05
Q10J94123 Cysteine proteinase inhib no no 0.571 0.520 0.368 0.0001
P31726135 Cystatin-1 OS=Zea mays GN N/A no 0.544 0.451 0.384 0.0001
>sp|Q8L5T9|CYT2_ARATH Cysteine proteinase inhibitor 2 OS=Arabidopsis thaliana GN=CYS2 PE=2 SV=2 Back     alignment and function desciption
 Score = 81.3 bits (199), Expect = 2e-15,   Method: Compositional matrix adjust.
 Identities = 45/110 (40%), Positives = 71/110 (64%), Gaps = 10/110 (9%)

Query: 12  LLLLSITASVNGYDR---LVGGRSEVKDVKKNKEVQELGKFSVEEFNRSQQRQGKVIRNV 68
           L++  +T S     R   ++GG+S V +++ N+E+Q+LG++ VE+FN+  Q +   I ++
Sbjct: 17  LVIAVVTPSAANPFRKSVVLGGKSGVPNIRTNREIQQLGRYCVEQFNQQAQNEQGNIGSI 76

Query: 69  A------FGRLRFSQVLEAQKQVVSGIKYYLTIEATTGENGEIQMFDSIV 112
           A         L+FS+V+ AQKQVV+G+KYYL IE T   NG  +MFDS+V
Sbjct: 77  AKTDTAISNPLQFSRVVSAQKQVVAGLKYYLRIEVTQ-PNGSTRMFDSVV 125




Specific inhibitor of cysteine proteinases. Probably involved in the regulation of endogenous processes and in defense against pests and pathogens.
Arabidopsis thaliana (taxid: 3702)
>sp|Q10993|CYTB_HELAN Cysteine proteinase inhibitor B OS=Helianthus annuus PE=1 SV=1 Back     alignment and function description
>sp|P0C579|CYT10_ORYSJ Cysteine proteinase inhibitor 10 OS=Oryza sativa subsp. japonica GN=Os04g0350100 PE=2 SV=1 Back     alignment and function description
>sp|A2XS65|CYT10_ORYSI Cysteine proteinase inhibitor 10 OS=Oryza sativa subsp. indica GN=OsI_014908 PE=2 SV=2 Back     alignment and function description
>sp|Q5N806|CYT4_ORYSJ Cysteine proteinase inhibitor 4 OS=Oryza sativa subsp. japonica GN=Os01g0915200 PE=2 SV=1 Back     alignment and function description
>sp|Q0JGM8|CYT5_ORYSJ Cysteine proteinase inhibitor 5 OS=Oryza sativa subsp. japonica GN=Os01g0915401 PE=3 SV=2 Back     alignment and function description
>sp|Q10Q47|CYT7_ORYSJ Putative cysteine proteinase inhibitor 7 OS=Oryza sativa subsp. japonica GN=Os03g0210100 PE=3 SV=1 Back     alignment and function description
>sp|Q8H0X6|CYT6_ARATH Cysteine proteinase inhibitor 6 OS=Arabidopsis thaliana GN=CYS6 PE=1 SV=2 Back     alignment and function description
>sp|Q10J94|CYT8_ORYSJ Cysteine proteinase inhibitor 8 OS=Oryza sativa subsp. japonica GN=Os03g0429000 PE=2 SV=1 Back     alignment and function description
>sp|P31726|CYT1_MAIZE Cystatin-1 OS=Zea mays GN=RAMDAZC7 PE=2 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 ?
Query112
224128888138 predicted protein [Populus trichocarpa] 0.919 0.746 0.552 1e-21
225433500140 PREDICTED: cysteine proteinase inhibitor 0.982 0.785 0.516 9e-21
147811593199 hypothetical protein VITISV_001398 [Viti 0.982 0.552 0.516 1e-20
27728729123 cystatin [Malus x domestica] 0.919 0.837 0.486 3e-18
255550652138 Cysteine proteinase inhibitor B, putativ 0.973 0.789 0.5 5e-18
356512413130 PREDICTED: cysteine proteinase inhibitor 0.955 0.823 0.474 1e-17
356569410142 PREDICTED: cysteine proteinase inhibitor 0.910 0.718 0.486 3e-17
351629605139 cysteine proteinase inhibitor CPI-1 [Cof 0.857 0.690 0.475 1e-16
356540112126 PREDICTED: cysteine proteinase inhibitor 0.723 0.642 0.540 3e-16
255633570122 unknown [Glycine max] 0.723 0.663 0.528 1e-15
>gi|224128888|ref|XP_002320446.1| predicted protein [Populus trichocarpa] gi|222861219|gb|EEE98761.1| predicted protein [Populus trichocarpa] Back     alignment and taxonomy information
 Score =  106 bits (265), Expect = 1e-21,   Method: Compositional matrix adjust.
 Identities = 68/123 (55%), Positives = 85/123 (69%), Gaps = 20/123 (16%)

Query: 1   MAKLARA--------LILSLLLLSITASVNGY-DRLVGGRSEVKDVKKNKEVQELGKFSV 51
           MAKL ++        L+LS LL+S    V+GY   +VGGRSEV DVK NK+VQELG+FSV
Sbjct: 1   MAKLMKSSVPFLVCFLVLSTLLVS---GVSGYRGGMVGGRSEVSDVKTNKQVQELGRFSV 57

Query: 52  EEFN--RSQQRQGKVIRNVAFGRLRFSQVLEAQKQVVSGIKYYLTIEATTGENGEIQMFD 109
           +EFN  RS   +G        G+L FS+V+EA KQVVSG+KYYL I ATT +NGE +MFD
Sbjct: 58  KEFNSHRSLYWKGG-----GVGKLMFSEVVEAHKQVVSGLKYYLNIVATT-QNGEKRMFD 111

Query: 110 SIV 112
           S+V
Sbjct: 112 SVV 114




Source: Populus trichocarpa

Species: Populus trichocarpa

Genus: Populus

Family: Salicaceae

Order: Malpighiales

Class:

Phylum: Streptophyta

Superkingdom: Eukaryota

>gi|225433500|ref|XP_002265736.1| PREDICTED: cysteine proteinase inhibitor 2-like [Vitis vinifera] Back     alignment and taxonomy information
>gi|147811593|emb|CAN70300.1| hypothetical protein VITISV_001398 [Vitis vinifera] Back     alignment and taxonomy information
>gi|27728729|gb|AAO18638.1| cystatin [Malus x domestica] Back     alignment and taxonomy information
>gi|255550652|ref|XP_002516375.1| Cysteine proteinase inhibitor B, putative [Ricinus communis] gi|223544473|gb|EEF45992.1| Cysteine proteinase inhibitor B, putative [Ricinus communis] Back     alignment and taxonomy information
>gi|356512413|ref|XP_003524913.1| PREDICTED: cysteine proteinase inhibitor 10-like isoform 1 [Glycine max] gi|356512415|ref|XP_003524914.1| PREDICTED: cysteine proteinase inhibitor 10-like isoform 2 [Glycine max] Back     alignment and taxonomy information
>gi|356569410|ref|XP_003552894.1| PREDICTED: cysteine proteinase inhibitor 2-like [Glycine max] Back     alignment and taxonomy information
>gi|351629605|gb|AEQ54766.1| cysteine proteinase inhibitor CPI-1 [Coffea canephora] Back     alignment and taxonomy information
>gi|356540112|ref|XP_003538534.1| PREDICTED: cysteine proteinase inhibitor 2 [Glycine max] Back     alignment and taxonomy information
>gi|255633570|gb|ACU17144.1| unknown [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 ?
Query112
TAIR|locus:2045537147 CYS2 "PHYTOCYSTATIN 2" [Arabid 0.758 0.578 0.445 9.8e-16
TAIR|locus:2058515125 CYSA "cystatin A" [Arabidopsis 0.571 0.512 0.293 5.5e-06
UNIPROTKB|P01035148 CST3 "Cystatin-C" [Bos taurus 0.526 0.398 0.430 6.3e-05
TAIR|locus:2130709117 AT4G16500 [Arabidopsis thalian 0.642 0.615 0.317 6.3e-05
TAIR|locus:2177063101 CYS1 "cystatin-1" [Arabidopsis 0.607 0.673 0.278 0.00013
TAIR|locus:2092492 234 CYSB "cystatin B" [Arabidopsis 0.651 0.311 0.302 0.00015
TAIR|locus:2168973122 AT5G47550 [Arabidopsis thalian 0.553 0.508 0.337 0.00021
ZFIN|ZDB-GENE-030131-373134 cst3 "cystatin C (amyloid angi 0.607 0.507 0.341 0.00027
TAIR|locus:2175294 232 AT5G05110 [Arabidopsis thalian 0.642 0.310 0.348 0.00054
UNIPROTKB|E2RJE4149 CST6 "Uncharacterized protein" 0.544 0.409 0.319 0.00073
TAIR|locus:2045537 CYS2 "PHYTOCYSTATIN 2" [Arabidopsis thaliana (taxid:3702)] Back     alignment and assigned GO terms
 Score = 197 (74.4 bits), Expect = 9.8e-16, P = 9.8e-16
 Identities = 41/92 (44%), Positives = 65/92 (70%)

Query:    27 LVGGRSEVKDVKKNKEVQELGKFSVEEFNRSQQRQ----GKVIR-NVAFGR-LRFSQVLE 80
             ++GG+S V +++ N+E+Q+LG++ VE+FN+  Q +    G + + + A    L+FS+V+ 
Sbjct:    35 VLGGKSGVPNIRTNREIQQLGRYCVEQFNQQAQNEQGNIGSIAKTDTAISNPLQFSRVVS 94

Query:    81 AQKQVVSGIKYYLTIEATTGENGEIQMFDSIV 112
             AQKQVV+G+KYYL IE T   NG  +MFDS+V
Sbjct:    95 AQKQVVAGLKYYLRIEVTQ-PNGSTRMFDSVV 125




GO:0004869 "cysteine-type endopeptidase inhibitor activity" evidence=IEA
GO:0005576 "extracellular region" evidence=ISM
GO:0009062 "fatty acid catabolic process" evidence=RCA
GO:0010162 "seed dormancy process" evidence=RCA
TAIR|locus:2058515 CYSA "cystatin A" [Arabidopsis thaliana (taxid:3702)] Back     alignment and assigned GO terms
UNIPROTKB|P01035 CST3 "Cystatin-C" [Bos taurus (taxid:9913)] Back     alignment and assigned GO terms
TAIR|locus:2130709 AT4G16500 [Arabidopsis thaliana (taxid:3702)] Back     alignment and assigned GO terms
TAIR|locus:2177063 CYS1 "cystatin-1" [Arabidopsis thaliana (taxid:3702)] Back     alignment and assigned GO terms
TAIR|locus:2092492 CYSB "cystatin B" [Arabidopsis thaliana (taxid:3702)] Back     alignment and assigned GO terms
TAIR|locus:2168973 AT5G47550 [Arabidopsis thaliana (taxid:3702)] Back     alignment and assigned GO terms
ZFIN|ZDB-GENE-030131-373 cst3 "cystatin C (amyloid angiopathy and cerebral hemorrhage)" [Danio rerio (taxid:7955)] Back     alignment and assigned GO terms
TAIR|locus:2175294 AT5G05110 [Arabidopsis thaliana (taxid:3702)] Back     alignment and assigned GO terms
UNIPROTKB|E2RJE4 CST6 "Uncharacterized protein" [Canis lupus familiaris (taxid:9615)] 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 ?
Query112
cd00042105 cd00042, CY, Cystatin-like domain; Cystatins are a 1e-10
smart00043107 smart00043, CY, Cystatin-like domain 6e-09
pfam0003192 pfam00031, Cystatin, Cystatin domain 4e-08
>gnl|CDD|238002 cd00042, CY, Cystatin-like domain; Cystatins are a family of cysteine protease inhibitors that occur mainly as single domain proteins Back     alignment and domain information
 Score = 53.6 bits (129), Expect = 1e-10
 Identities = 24/62 (38%), Positives = 34/62 (54%), Gaps = 10/62 (16%)

Query: 40  NKEVQELGKFSVEEFNRSQQRQGKVIRNVAFGRLRFSQVLEAQKQVVSGIKYYLTIEATT 99
           + EVQEL  F+V E+N  ++   K         L F +VL A+ QVV+G  YY+T+EA  
Sbjct: 10  DPEVQELADFAVAEYN--KKSNDK--------YLEFFKVLSAKSQVVAGTNYYITVEAGD 59

Query: 100 GE 101
             
Sbjct: 60  TN 61


However some extracellular proteins such as kininogen, His-rich glycoprotein and fetuin also contain these domains. Length = 105

>gnl|CDD|214484 smart00043, CY, Cystatin-like domain Back     alignment and domain information
>gnl|CDD|215667 pfam00031, Cystatin, Cystatin domain Back     alignment and domain information

Conserved Domains Detected by HHsearch ?

ID ?Alignment Graph ?Length ? Definition ? Probability ?
Query 112
PF0003194 Cystatin: Cystatin domain; InterPro: IPR000010 Pep 99.75
cd00042105 CY Substituted updates: Jan 30, 2002 99.71
smart00043107 CY Cystatin-like domain. Cystatins are a family of 99.69
PF07430202 PP1: Phloem filament protein PP1; InterPro: IPR009 99.34
TIGR0163892 Atha_cystat_rel Arabidopsis thaliana cystatin-rela 98.53
PF07430 202 PP1: Phloem filament protein PP1; InterPro: IPR009 98.49
PF06907 220 Latexin: Latexin; InterPro: IPR009684 This family 90.91
>PF00031 Cystatin: Cystatin domain; InterPro: IPR000010 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=99.75  E-value=1.1e-17  Score=109.97  Aligned_cols=61  Identities=34%  Similarity=0.602  Sum_probs=58.4

Q ss_pred             CceeecCCCCCCHHHHHHHHHHHHHHHhhhhhcccccccccccceeEeEEEEEeEeeeeceEEEEEEEEecC
Q 035532           29 GGRSEVKDVKKNKEVQELGKFSVEEFNRSQQRQGKVIRNVAFGRLRFSQVLEAQKQVVSGIKYYLTIEATTG  100 (112)
Q Consensus        29 GG~~~~~~~~~d~~v~~~a~fAv~~~N~~~~~~~~~~~~~~~~~~~~~kV~~a~~QVVaG~nY~l~v~v~~~  100 (112)
                      |||++++  ++||+++++++||+.+||+++         ++.+.+++.+|++|++|||+|++|+|+++++++
T Consensus         1 Gg~~~~~--~~dp~v~~~~~~al~~~N~~~---------~~~~~~~~~~v~~a~~QvV~G~~Y~i~~~~~~t   61 (94)
T PF00031_consen    1 GGPSPVD--PNDPEVQEAAEFALDKFNEQS---------NSGYKFKLVKVISATTQVVAGINYYIEFEVGET   61 (94)
T ss_dssp             SSEEEEC--TTSHHHHHHHHHHHHHHHHHS---------TTSEEEEEEEEEEEEEEESSSEEEEEEEEEEEE
T ss_pred             CCCccCC--CCCHHHHHHHHHHHHHHHHhC---------cccCcceeeeeeEEEEeecCCceEEEEEEEEcc
Confidence            8999998  799999999999999999998         679999999999999999999999999999994



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. The cystatins are cysteine proteinase inhibitors belonging to MEROPS inhibitor family I25, clan IH [, , ]. They mainly inhibit peptidases belonging to peptidase families C1 (papain family) and C13 (legumain family). The cystatin family includes: The Type 1 cystatins, which are intracellular cystatins that are present in the cytosol of many cell types, but can also appear in body fluids at significant concentrations. They are single-chain polypeptides of about 100 residues, which have neither disulphide bonds nor carbohydrate side chains. The Type 2 cystatins, which are mainly extracellular secreted polypeptides synthesised with a 19-28 residue signal peptide. They are broadly distributed and found in most body fluids. The Type 3 cystatins, which are multidomain proteins. The mammalian representatives of this group are the kininogens. There are three different kininogens in mammals: H- (high molecular mass, IPR002395 from INTERPRO) and L- (low molecular mass) kininogen which are found in a number of species, and T-kininogen that is found only in rat. Unclassified cystatins. These are cystatin-like proteins found in a range of organisms: plant phytocystatins, fetuin in mammals, insect cystatins and a puff adder venom cystatin which inhibits metalloproteases of the MEROPS peptidase family M12 (astacin/adamalysin). Also a number of the cystatins-like proteins have been shown to be devoid of inhibitory activity. All true cystatins inhibit cysteine peptidases of the papain family (MEROPS peptidase family C1), and some also inhibit legumain family enzymes (MEROPS peptidase family C13). These peptidases play key roles in physiological processes, such as intracellular protein degradation (cathepsins B, H and L), are pivotal in the remodelling of bone (cathepsin K), and may be important in the control of antigen presentation (cathepsin S, mammalian legumain). Moreover, the activities of such peptidases are increased in pathophysiological conditions, such as cancer metastasis and inflammation. Additionally, such peptidases are essential for several pathogenic parasites and bacteria. Thus in animals cystatins not only have capacity to regulate normal body processes and perhaps cause disease when down-regulated, but in other organisms may also participate in defence against biotic and abiotic stress. ; GO: 0004869 cysteine-type endopeptidase inhibitor activity; PDB: 3L0R_B 2W9P_K 2W9Q_A 3S67_A 3QRD_D 1R4C_G 3GAX_A 1TIJ_B 1G96_A 3NX0_A ....

>cd00042 CY Substituted updates: Jan 30, 2002 Back     alignment and domain information
>smart00043 CY Cystatin-like domain Back     alignment and domain information
>PF07430 PP1: Phloem filament protein PP1; InterPro: IPR009994 This domain represents a conserved region approximately 200 residues long, four copies of which are found within the plant phloem filament protein PP1 Back     alignment and domain information
>TIGR01638 Atha_cystat_rel Arabidopsis thaliana cystatin-related protein Back     alignment and domain information
>PF07430 PP1: Phloem filament protein PP1; InterPro: IPR009994 This domain represents a conserved region approximately 200 residues long, four copies of which are found within the plant phloem filament protein PP1 Back     alignment and domain information
>PF06907 Latexin: Latexin; InterPro: IPR009684 This family consists of several animal specific latexin and proteins related to latexin that belong to MEROPS proteinase inhibitor family I47, clan I- [] Back     alignment and domain information

Homologous Structure Templates

Structure Templates Detected by BLAST ?

ID ?Alignment Graph ?Length ? Definition ? E-value ?
Query112
3ima_B91 Complex Strcuture Of Tarocystatin And Papain Length 3e-07
2w9p_A87 Crystal Structure Of Potato Multicystatin Length = 6e-05
>pdb|3IMA|B Chain B, Complex Strcuture Of Tarocystatin And Papain Length = 91 Back     alignment and structure

Iteration: 1

Score = 50.1 bits (118), Expect = 3e-07, Method: Compositional matrix adjust. Identities = 26/74 (35%), Positives = 47/74 (63%), Gaps = 11/74 (14%) Query: 27 LVGGRSEVKDVKKNKEVQELGKFSVEEFNRSQQRQGKVIRNVAFGRLRFSQVLEAQKQVV 86 L+GG +V+ + + EV+EL +F+V+E N+ + L+FS++++A++QVV Sbjct: 2 LMGGIVDVEGAQNSAEVEELARFAVDEHNKKEN-----------ALLQFSRLVKAKQQVV 50 Query: 87 SGIKYYLTIEATTG 100 SGI ++LT+E G Sbjct: 51 SGIMHHLTVEVIEG 64
>pdb|2W9P|A Chain A, Crystal Structure Of Potato Multicystatin Length = 87 Back     alignment and structure

Structure Templates Detected by RPS-BLAST ?

ID ?Alignment Graph ?Length ? Definition ? E-value ?
Query112
3ima_B91 Cysteine proteinase inhibitor; cystatin, tarocysta 2e-15
1eqk_A102 Oryzacystatin-I; alpha and beta proteins, cystatin 2e-14
2l4v_A135 Cystatin; protease inhibitor, hydrolase inhibitor; 8e-14
2w9q_A87 Multicystatin; protease inhibitor, thiol protease 1e-13
3mwz_A115 Sialostatin L2; antiparallel beta-sheet, hydrolase 1e-12
3l0r_A115 Cystatin-2, OMC2; SOFT TICK, protease inhibitor, t 8e-11
1yvb_I111 Cystatin; cysteine protease-inhibitor complex, hyd 1e-09
3gax_A120 Cystatin-C; cysteine protease inhibitor, 3D domain 5e-09
1roa_A122 Cystatin D; inhibitor of cysteine pepidases, prote 9e-09
2ch9_A131 Cystatin F; inhibitor, cysteine protease inhibitor 3e-08
>3ima_B Cysteine proteinase inhibitor; cystatin, tarocystatin, cecpi, papain, phytocystatin, allergen, disulfide bond, hydrolase, protease; 2.03A {Colocasia esculenta} Length = 91 Back     alignment and structure
 Score = 65.0 bits (158), Expect = 2e-15
 Identities = 28/86 (32%), Positives = 55/86 (63%), Gaps = 13/86 (15%)

Query: 27  LVGGRSEVKDVKKNKEVQELGKFSVEEFNRSQQRQGKVIRNVAFGRLRFSQVLEAQKQVV 86
           L+GG  +V+  + + EV+EL +F+V+E N+ +              L+FS++++A++QVV
Sbjct: 2   LMGGIVDVEGAQNSAEVEELARFAVDEHNKKEN-----------ALLQFSRLVKAKQQVV 50

Query: 87  SGIKYYLTIEATTGENGEIQMFDSIV 112
           SGI ++LT+E    E G+ +++++ V
Sbjct: 51  SGIMHHLTVEVI--EGGKKKVYEAKV 74


>1eqk_A Oryzacystatin-I; alpha and beta proteins, cystatin-like fold, cystatin/monellin superfamily, phytocystatin family; NMR {Oryza sativa japonica group} SCOP: d.17.1.2 Length = 102 Back     alignment and structure
>2l4v_A Cystatin; protease inhibitor, hydrolase inhibitor; NMR {Ananas comosus} Length = 135 Back     alignment and structure
>2w9q_A Multicystatin; protease inhibitor, thiol protease inhibitor, hydrolase inhibitor; 2.50A {Solanum tuberosum} PDB: 2w9p_A Length = 87 Back     alignment and structure
>3mwz_A Sialostatin L2; antiparallel beta-sheet, hydrolase inhibitor; HET: MSE; 1.52A {Ixodes scapularis} PDB: 3lh4_A 3li7_A Length = 115 Back     alignment and structure
>3l0r_A Cystatin-2, OMC2; SOFT TICK, protease inhibitor, thiol protease INHI hydrolase inhibitor; 2.45A {Ornithodoros moubata} Length = 115 Back     alignment and structure
>1yvb_I Cystatin; cysteine protease-inhibitor complex, hydrolase-hydrolase INH complex; 2.70A {Gallus gallus} SCOP: d.17.1.2 PDB: 1a67_A 1cew_I 1a90_A Length = 111 Back     alignment and structure
>3gax_A Cystatin-C; cysteine protease inhibitor, 3D domain swapping, protein AGG amyloid, protein engineering, twinning; 1.70A {Homo sapiens} PDB: 1g96_A 1tij_A 3qrd_A 3ps8_A 3nx0_A 1r4c_A Length = 120 Back     alignment and structure
>1roa_A Cystatin D; inhibitor of cysteine pepidases, protein binding; 1.80A {Homo sapiens} SCOP: d.17.1.2 PDB: 1rn7_A Length = 122 Back     alignment and structure
>2ch9_A Cystatin F; inhibitor, cysteine protease inhibitor, glycoprotein; HET: NAG FUL; 2.10A {Homo sapiens} Length = 131 Back     alignment and structure

Structure Templates Detected by HHsearch ?

ID ?Alignment Graph ?Length ? Definition ? Probability ?
Query112
3ima_B91 Cysteine proteinase inhibitor; cystatin, tarocysta 99.89
1eqk_A102 Oryzacystatin-I; alpha and beta proteins, cystatin 99.87
3ul5_A139 Canecystatin-1; defense, hydrolase inhibitor; 2.30 99.86
2w9q_A87 Multicystatin; protease inhibitor, thiol protease 99.85
3mwz_A115 Sialostatin L2; antiparallel beta-sheet, hydrolase 99.85
2l4v_A135 Cystatin; protease inhibitor, hydrolase inhibitor; 99.83
1yvb_I111 Cystatin; cysteine protease-inhibitor complex, hyd 99.83
2oct_A98 Cystatin B; stefin, amyloid, domain-swapping, hand 99.83
1roa_A122 Cystatin D; inhibitor of cysteine pepidases, prote 99.82
3gax_A120 Cystatin-C; cysteine protease inhibitor, 3D domain 99.81
1cyu_A98 Cystatin A, stefin A; proteinase inhibitor (cystei 99.81
2ch9_A131 Cystatin F; inhibitor, cysteine protease inhibitor 99.8
2kxg_A95 Aspartic protease inhibitor; sqapi, protein, hydro 99.79
3l0r_A115 Cystatin-2, OMC2; SOFT TICK, protease inhibitor, t 99.79
2o9u_X97 Monellin chain B and monellin chain A; alternative 99.76
2bo9_B 222 Human latexin, MUM; metallocarboxypeptidase, X-RAY 92.03
1kwi_A101 Protegrin-3 precursor; cathelicidin motif, disulfi 87.88
>3ima_B Cysteine proteinase inhibitor; cystatin, tarocystatin, cecpi, papain, phytocystatin, allergen, disulfide bond, hydrolase, protease; 2.03A {Colocasia esculenta} SCOP: d.17.1.0 Back     alignment and structure
Probab=99.89  E-value=7.3e-23  Score=135.08  Aligned_cols=73  Identities=37%  Similarity=0.646  Sum_probs=62.4

Q ss_pred             ccCceeecCCCCCCHHHHHHHHHHHHHHHhhhhhcccccccccccceeEeEEEEEeEeeeeceEEEEEEEEecCCCCeee
Q 035532           27 LVGGRSEVKDVKKNKEVQELGKFSVEEFNRSQQRQGKVIRNVAFGRLRFSQVLEAQKQVVSGIKYYLTIEATTGENGEIQ  106 (112)
Q Consensus        27 ~~GG~~~~~~~~~d~~v~~~a~fAv~~~N~~~~~~~~~~~~~~~~~~~~~kV~~a~~QVVaG~nY~l~v~v~~~~~g~~~  106 (112)
                      ++|||+++++.++||+++++++||+++||+++           +..+.+.+|+++++|||||+||+|++++++  +|+.+
T Consensus         2 ~~GG~~~~~~~~~d~~v~~~a~fav~~~n~~~-----------n~~~~~~~Vv~a~~QVVaG~nY~l~v~~~~--~~~~~   68 (91)
T 3ima_B            2 LMGGIVDVEGAQNSAEVEELARFAVDEHNKKE-----------NALLQFSRLVKAKQQVVSGIMHHLTVEVIE--GGKKK   68 (91)
T ss_dssp             CBTCEEC------CHHHHHHHHHHHHHHHHHH-----------TCCCEEEEEEEEEEEESSSEEEEEEEEEEE--TTEEE
T ss_pred             CCcccccCcCCCCCHHHHHHHHHHHHHHHHhc-----------CCceEEEEEEEEEEEEeccEEEEEEEEEec--CCceE
Confidence            68999999411699999999999999999998           345788999999999999999999999999  78999


Q ss_pred             eEEEEC
Q 035532          107 MFDSIV  112 (112)
Q Consensus       107 ~y~a~V  112 (112)
                      .|+++|
T Consensus        69 ~y~a~V   74 (91)
T 3ima_B           69 VYEAKV   74 (91)
T ss_dssp             EEEEEE
T ss_pred             EEEEEE
Confidence            999986



>1eqk_A Oryzacystatin-I; alpha and beta proteins, cystatin-like fold, cystatin/monellin superfamily, phytocystatin family; NMR {Oryza sativa japonica group} SCOP: d.17.1.2 Back     alignment and structure
>3ul5_A Canecystatin-1; defense, hydrolase inhibitor; 2.30A {Saccharum officinarum} PDB: 3ul6_A* Back     alignment and structure
>2w9q_A Multicystatin; protease inhibitor, thiol protease inhibitor, hydrolase inhibitor; 2.50A {Solanum tuberosum} PDB: 2w9p_A Back     alignment and structure
>3mwz_A Sialostatin L2; antiparallel beta-sheet, hydrolase inhibitor; HET: MSE; 1.52A {Ixodes scapularis} PDB: 3lh4_A 3li7_A Back     alignment and structure
>2l4v_A Cystatin; protease inhibitor, hydrolase inhibitor; NMR {Ananas comosus} Back     alignment and structure
>1yvb_I Cystatin; cysteine protease-inhibitor complex, hydrolase-hydrolase INH complex; 2.70A {Gallus gallus} SCOP: d.17.1.2 PDB: 1a67_A 1cew_I 1a90_A Back     alignment and structure
>2oct_A Cystatin B; stefin, amyloid, domain-swapping, hand shaking, PR isomerization, protein binding; 1.40A {Homo sapiens} PDB: 1stf_I* Back     alignment and structure
>1roa_A Cystatin D; inhibitor of cysteine pepidases, protein binding; 1.80A {Homo sapiens} SCOP: d.17.1.2 PDB: 1rn7_A Back     alignment and structure
>3gax_A Cystatin-C; cysteine protease inhibitor, 3D domain swapping, protein AGG amyloid, protein engineering, twinning; 1.70A {Homo sapiens} SCOP: d.17.1.2 PDB: 1g96_A 1tij_A 3qrd_A 3ps8_A 3nx0_A 3sva_A 3s67_A 1r4c_A Back     alignment and structure
>1cyu_A Cystatin A, stefin A; proteinase inhibitor (cysteine); NMR {Homo sapiens} SCOP: d.17.1.2 PDB: 1cyv_A 1gd3_A 1dvc_A 1dvd_A 1n9j_A 1nb3_I* 1nb5_I* 3k9m_C 3kfq_C 3kse_D* 1gd4_A Back     alignment and structure
>2ch9_A Cystatin F; inhibitor, cysteine protease inhibitor, glycoprotein; HET: NAG FUL; 2.10A {Homo sapiens} Back     alignment and structure
>2kxg_A Aspartic protease inhibitor; sqapi, protein, hydrolase inhib; NMR {Cucurbita maxima} Back     alignment and structure
>3l0r_A Cystatin-2, OMC2; SOFT TICK, protease inhibitor, thiol protease INHI hydrolase inhibitor; 2.45A {Ornithodoros moubata} Back     alignment and structure
>2o9u_X Monellin chain B and monellin chain A; alternative conformations, 3-10 polyproline II helix, plant protein; 1.15A {Dioscoreophyllum cumminsii} SCOP: d.17.1.1 PDB: 3pxm_A 1m9g_A 3pyj_A 1fa3_A 1iv7_A 3q2p_A 1iv9_A 1mnl_A 1mol_A 1fuw_A 4mon_B 3mon_B 1krl_B 4mon_A 1krl_A 3mon_A 2q33_B* 2q33_A* Back     alignment and structure
>2bo9_B Human latexin, MUM; metallocarboxypeptidase, X-RAY endogenous protein inhibitor, metalloprotease carboxypeptidase, hydrolase; HET: NAG; 1.6A {Homo sapiens} SCOP: d.17.1.5 d.17.1.5 PDB: 1wnh_A Back     alignment and structure
>1kwi_A Protegrin-3 precursor; cathelicidin motif, disulfide, MAD, selenocystine, antimicrobial protein; 2.19A {Sus scrofa} SCOP: d.17.1.3 PDB: 1lxe_A 1n5h_A 1n5p_A 1pfp_A Back     alignment and structure

Homologous Structure Domains

Structure Domains Detected by RPS-BLAST ?

ID ?Alignment Graph ?Length ? Definition ? E-value ?
Query 112
d1eqka_102 d.17.1.2 (A:) Phytocystatin {Japanese rice (Oryza 2e-13
d1roaa_111 d.17.1.2 (A:) Cystatin D {Human (Homo sapiens) [Ta 4e-12
d1cewi_108 d.17.1.2 (I:) Cystatin {Chicken (Gallus gallus) [T 7e-09
d1r4ca_110 d.17.1.2 (A:) Cystatin C {Human (Homo sapiens) [Ta 3e-08
>d1eqka_ d.17.1.2 (A:) Phytocystatin {Japanese rice (Oryza sativa), subsp. japonica, oryzacystatin-I [TaxId: 4530]} Length = 102 Back     information, alignment and structure

class: Alpha and beta proteins (a+b)
fold: Cystatin-like
superfamily: Cystatin/monellin
family: Cystatins
domain: Phytocystatin
species: Japanese rice (Oryza sativa), subsp. japonica, oryzacystatin-I [TaxId: 4530]
 Score = 59.1 bits (143), Expect = 2e-13
 Identities = 21/86 (24%), Positives = 41/86 (47%), Gaps = 14/86 (16%)

Query: 27  LVGGRSEVKDVKKNKEVQELGKFSVEEFNRSQQRQGKVIRNVAFGRLRFSQVLEAQKQVV 86
           ++GG   V +   +  + +L +F+V E N+                L F +++  ++QVV
Sbjct: 8   VLGGVEPVGNEN-DLHLVDLARFAVTEHNKKAN-----------SLLEFEKLVSVKQQVV 55

Query: 87  SGIKYYLTIEATTGENGEIQMFDSIV 112
           +G  YY TIE    E    +++++ V
Sbjct: 56  AGTLYYFTIEVK--EGDAKKLYEAKV 79


>d1roaa_ d.17.1.2 (A:) Cystatin D {Human (Homo sapiens) [TaxId: 9606]} Length = 111 Back     information, alignment and structure
>d1cewi_ d.17.1.2 (I:) Cystatin {Chicken (Gallus gallus) [TaxId: 9031]} Length = 108 Back     information, alignment and structure
>d1r4ca_ d.17.1.2 (A:) Cystatin C {Human (Homo sapiens) [TaxId: 9606]} Length = 110 Back     information, alignment and structure

Homologous Domains Detected by HHsearch ?

ID ?Alignment Graph ?Length ? Definition ? Probability ?
Query112
d1eqka_102 Phytocystatin {Japanese rice (Oryza sativa), subsp 99.88
d1roaa_111 Cystatin D {Human (Homo sapiens) [TaxId: 9606]} 99.77
d1cewi_108 Cystatin {Chicken (Gallus gallus) [TaxId: 9031]} 99.77
d1r4ca_110 Cystatin C {Human (Homo sapiens) [TaxId: 9606]} 99.75
d1stfi_98 Cystatin B (stefin B) {Human (Homo sapiens) [TaxId 99.66
d1nb5i_98 Cystatin A (stefin A) {Human (Homo sapiens) [TaxId 99.62
d1kwia_98 Cathelicidin motif of protegrin-3 {Pig (Sus scrofa 99.02
d2bo9b198 Latexin {Human (Homo sapiens) [TaxId: 9606]} 94.84
d2o9ux196 Monellin, B & A chains together {Serendipity berry 89.18
>d1eqka_ d.17.1.2 (A:) Phytocystatin {Japanese rice (Oryza sativa), subsp. japonica, oryzacystatin-I [TaxId: 4530]} Back     information, alignment and structure
class: Alpha and beta proteins (a+b)
fold: Cystatin-like
superfamily: Cystatin/monellin
family: Cystatins
domain: Phytocystatin
species: Japanese rice (Oryza sativa), subsp. japonica, oryzacystatin-I [TaxId: 4530]
Probab=99.88  E-value=2e-22  Score=134.12  Aligned_cols=75  Identities=27%  Similarity=0.527  Sum_probs=68.0

Q ss_pred             CccccCceeecCCCCCCHHHHHHHHHHHHHHHhhhhhcccccccccccceeEeEEEEEeEeeeeceEEEEEEEEecCCCC
Q 035532           24 YDRLVGGRSEVKDVKKNKEVQELGKFSVEEFNRSQQRQGKVIRNVAFGRLRFSQVLEAQKQVVSGIKYYLTIEATTGENG  103 (112)
Q Consensus        24 ~~~~~GG~~~~~~~~~d~~v~~~a~fAv~~~N~~~~~~~~~~~~~~~~~~~~~kV~~a~~QVVaG~nY~l~v~v~~~~~g  103 (112)
                      ..+++|||++++| ++||+++++++||+.+||+.+           +..+++.+|++|++|||+|+||+|++++.+  ++
T Consensus         5 ~~~l~GG~~~i~d-~nd~~v~e~a~~Av~~~N~~~-----------~~~~~~vkV~~a~~QVVaG~~Y~i~v~~~~--~~   70 (102)
T d1eqka_           5 GGPVLGGVEPVGN-ENDLHLVDLARFAVTEHNKKA-----------NSLLEFEKLVSVKQQVVAGTLYYFTIEVKE--GD   70 (102)
T ss_dssp             SCSCSSSSEEECC-TTCHHHHHHHHHHHHHHHHHT-----------TCCEEEEEEEEEEEEESSSEEEEEEEEEEE--TT
T ss_pred             CCcccCCcccCCC-CCCHHHHHHHHHHHHHHhhcC-----------CCceEEEEEEEEeeeeccceeEEEEEEEcc--CC
Confidence            3679999999866 599999999999999999987           345788999999999999999999999999  78


Q ss_pred             eeeeEEEEC
Q 035532          104 EIQMFDSIV  112 (112)
Q Consensus       104 ~~~~y~a~V  112 (112)
                      ..+.|+++|
T Consensus        71 ~~k~c~~~V   79 (102)
T d1eqka_          71 AKKLYEAKV   79 (102)
T ss_dssp             CCEEEEEEE
T ss_pred             ccEEEEEEE
Confidence            889999876



>d1roaa_ d.17.1.2 (A:) Cystatin D {Human (Homo sapiens) [TaxId: 9606]} Back     information, alignment and structure
>d1cewi_ d.17.1.2 (I:) Cystatin {Chicken (Gallus gallus) [TaxId: 9031]} Back     information, alignment and structure
>d1r4ca_ d.17.1.2 (A:) Cystatin C {Human (Homo sapiens) [TaxId: 9606]} Back     information, alignment and structure
>d1stfi_ d.17.1.2 (I:) Cystatin B (stefin B) {Human (Homo sapiens) [TaxId: 9606]} Back     information, alignment and structure
>d1nb5i_ d.17.1.2 (I:) Cystatin A (stefin A) {Human (Homo sapiens) [TaxId: 9606]} Back     information, alignment and structure
>d1kwia_ d.17.1.3 (A:) Cathelicidin motif of protegrin-3 {Pig (Sus scrofa) [TaxId: 9823]} Back     information, alignment and structure
>d2bo9b1 d.17.1.5 (B:1-98) Latexin {Human (Homo sapiens) [TaxId: 9606]} Back     information, alignment and structure
>d2o9ux1 d.17.1.1 (X:1001-1096) Monellin, B & A chains together {Serendipity berry (Dioscoreophyllum cumminsii) [TaxId: 3457]} Back     information, alignment and structure