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Protein

Trypsin inhibitor 1

Gene
N/A
Organism
Cucurbita maxima (Pumpkin) (Winter squash)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at protein leveli

Functioni

Inhibits trypsin.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sitei5 – 6Reactive bond2

GO - Molecular functioni

Complete GO annotation...

Keywords - Molecular functioni

Protease inhibitor, Serine protease inhibitor

Protein family/group databases

MEROPSiI07.005.

Names & Taxonomyi

Protein namesi
Recommended name:
Trypsin inhibitor 1
Alternative name(s):
CMTI-I
ITD-I
Trypsin inhibitor I
OrganismiCucurbita maxima (Pumpkin) (Winter squash)
Taxonomic identifieri3661 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsfabidsCucurbitalesCucurbitaceaeCucurbiteaeCucurbita

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Secreted

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
PeptideiPRO_00000443761 – 29Trypsin inhibitor 1Add BLAST29

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Disulfide bondi3 ↔ 201 Publication
Disulfide bondi10 ↔ 221 Publication
Disulfide bondi16 ↔ 281 Publication

Keywords - PTMi

Disulfide bond

Miscellaneous databases

PMAP-CutDBP01074.

Interactioni

Protein-protein interaction databases

MINTiMINT-365052.

Structurei

Secondary structure

129
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi13 – 15Combined sources3
Beta strandi21 – 23Combined sources3
Beta strandi26 – 28Combined sources3

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1CTINMR-A1-29[»]
1LU0X-ray1.03A/B1-29[»]
1PPEX-ray2.00I1-29[»]
2CTINMR-A1-29[»]
2STAX-ray1.80I1-29[»]
2V1VNMR-A1-29[»]
3CTINMR-A1-29[»]
ProteinModelPortaliP01074.
SMRiP01074.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP01074.

Family & Domainsi

Domaini

The presence of a 'disulfide through disulfide knot' structurally defines this protein as a knottin.

Sequence similaritiesi

Keywords - Domaini

Knottin

Family and domain databases

CDDicd00150. PlantTI. 1 hit.
InterProiIPR000737. Prot_inh_squash.
IPR011052. Proteinase_amylase_inhib_dom.
[Graphical view]
PfamiPF00299. Squash. 1 hit.
[Graphical view]
PRINTSiPR00293. SQUASHINHBTR.
SUPFAMiSSF57027. SSF57027. 1 hit.
PROSITEiPS00286. SQUASH_INHIBITOR. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P01074-1 [UniParc]FASTAAdd to basket

« Hide

        10         20 
RVCPRILMEC KKDSDCLAEC VCLEHGYCG
Length:29
Mass (Da):3,275
Last modified:July 21, 1986 - v1
Checksum:iCD509120BA52C01F
GO

Sequence databases

PIRiA01313. TIPU.

Cross-referencesi

Sequence databases

PIRiA01313. TIPU.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1CTINMR-A1-29[»]
1LU0X-ray1.03A/B1-29[»]
1PPEX-ray2.00I1-29[»]
2CTINMR-A1-29[»]
2STAX-ray1.80I1-29[»]
2V1VNMR-A1-29[»]
3CTINMR-A1-29[»]
ProteinModelPortaliP01074.
SMRiP01074.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

MINTiMINT-365052.

Protein family/group databases

MEROPSiI07.005.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Miscellaneous databases

EvolutionaryTraceiP01074.
PMAP-CutDBP01074.

Family and domain databases

CDDicd00150. PlantTI. 1 hit.
InterProiIPR000737. Prot_inh_squash.
IPR011052. Proteinase_amylase_inhib_dom.
[Graphical view]
PfamiPF00299. Squash. 1 hit.
[Graphical view]
PRINTSiPR00293. SQUASHINHBTR.
SUPFAMiSSF57027. SSF57027. 1 hit.
PROSITEiPS00286. SQUASH_INHIBITOR. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiITR1_CUCMA
AccessioniPrimary (citable) accession number: P01074
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 21, 1986
Last sequence update: July 21, 1986
Last modified: November 2, 2016
This is version 97 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Direct protein sequencing

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.