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Protein

Cycloviolacin-H3

Gene
N/A
Organism
Viola hederacea (Australian violet)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at protein leveli

Functioni

Probably participates in a plant defense mechanism.Curated

GO - Biological processi

Complete GO annotation...

Keywords - Biological processi

Plant defense

Names & Taxonomyi

Protein namesi
Recommended name:
Cycloviolacin-H3
OrganismiViola hederacea (Australian violet)
Taxonomic identifieri180952 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsfabidsMalpighialesViolaceaeViola

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Peptidei1 – 3030Cycloviolacin-H3PROSITE-ProRule annotation1 PublicationPRO_0000302127Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Cross-linki1 ↔ 30Cyclopeptide (Gly-Asn)1 Publication
Disulfide bondi5 ↔ 19PROSITE-ProRule annotationBy similarity
Disulfide bondi9 ↔ 21PROSITE-ProRule annotationBy similarity
Disulfide bondi14 ↔ 27PROSITE-ProRule annotationBy similarity

Post-translational modificationi

This is a cyclic peptide.PROSITE-ProRule annotation1 Publication

Keywords - PTMi

Disulfide bond

Structurei

3D structure databases

ProteinModelPortaliP85232.
SMRiP85232. Positions 1-29.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domaini

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

Sequence similaritiesi

Belongs to the cyclotide family. Moebius subfamily.PROSITE-ProRule annotation

Keywords - Domaini

Knottin

Family and domain databases

InterProiIPR005535. Cyclotide.
IPR012324. Cyclotide_moebius_CS.
[Graphical view]
PfamiPF03784. Cyclotide. 1 hit.
[Graphical view]
PIRSFiPIRSF037891. Cycloviolacin. 1 hit.
SUPFAMiSSF57038. SSF57038. 1 hit.
PROSITEiPS51052. CYCLOTIDE. 1 hit.
PS60009. CYCLOTIDE_MOEBIUS. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P85232-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30
GLPVCGETCF GGTCNTPGCI CDPWPVCTRN
Length:30
Mass (Da):3,102
Last modified:September 11, 2007 - v1
Checksum:i7B0971FDFFFD26EE
GO

Mass spectrometryi

Molecular mass is 3075.28 Da from positions 1 - 30. Determined by MALDI. 1 Publication

Cross-referencesi

3D structure databases

ProteinModelPortaliP85232.
SMRiP85232. Positions 1-29.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Family and domain databases

InterProiIPR005535. Cyclotide.
IPR012324. Cyclotide_moebius_CS.
[Graphical view]
PfamiPF03784. Cyclotide. 1 hit.
[Graphical view]
PIRSFiPIRSF037891. Cycloviolacin. 1 hit.
SUPFAMiSSF57038. SSF57038. 1 hit.
PROSITEiPS51052. CYCLOTIDE. 1 hit.
PS60009. CYCLOTIDE_MOEBIUS. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. "Isolation and characterization of novel cyclotides from Viola hederaceae: solution structure and anti-HIV activity of vhl-1, a leaf-specific expressed cyclotide."
    Chen B., Colgrave M.L., Daly N.L., Rosengren K.J., Gustafson K.R., Craik D.J.
    J. Biol. Chem. 280:22395-22405(2005) [PubMed] [Europe PMC] [Abstract]
    Cited for: PROTEIN SEQUENCE, MASS SPECTROMETRY.
    Tissue: Leaf1 Publication.

Entry informationi

Entry nameiCYH3_VIOHE
AccessioniPrimary (citable) accession number: P85232
Entry historyi
Integrated into UniProtKB/Swiss-Prot: September 11, 2007
Last sequence update: September 11, 2007
Last modified: December 9, 2015
This is version 19 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Caution

This peptide is cyclic. The start position was chosen by similarity to OAK1 (kalata-B1) for which the DNA sequence is known.Curated

Keywords - Technical termi

Direct protein sequencing

Documents

  1. 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.