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Protein

Cycloviolacin-O5

Gene
N/A
Organism
Viola odorata (Sweet violet)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Probably participates in a plant defense mechanism.

Caution

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

GO - Biological processi

Keywordsi

Biological processPlant defense

Names & Taxonomyi

Protein namesi
Recommended name:
Cycloviolacin-O5
OrganismiViola odorata (Sweet violet)
Taxonomic identifieri97441 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsfabidsMalpighialesViolaceaeViola

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
PeptideiPRO_00000436131 – 30Cycloviolacin-O5Add BLAST30

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Cross-linki1 ↔ 30Cyclopeptide (Gly-Asn)
Disulfide bondi4 ↔ 20
Disulfide bondi8 ↔ 22
Disulfide bondi13 ↔ 27

Post-translational modificationi

This is a cyclic peptide.

Keywords - PTMi

Disulfide bond

Structurei

3D structure databases

ProteinModelPortaliP58437
SMRiP58437
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domaini

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

Sequence similaritiesi

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

Keywords - Domaini

Knottin

Family and domain databases

InterProiView protein in InterPro
IPR005535 Cyclotide
IPR012323 Cyclotide_bracelet_CS
IPR036146 Cyclotide_sf
PfamiView protein in Pfam
PF03784 Cyclotide, 1 hit
PIRSFiPIRSF037891 Cycloviolacin, 1 hit
SUPFAMiSSF57038 SSF57038, 1 hit
PROSITEiView protein in PROSITE
PS51052 CYCLOTIDE, 1 hit
PS60008 CYCLOTIDE_BRACELET, 1 hit

Sequencei

Sequence statusi: Complete.

P58437-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30
GTPCGESCVW IPCISSAVGC SCKNKVCYKN
Length:30
Mass (Da):3,138
Last modified:December 5, 2001 - v1
Checksum:i19C6AA52EEBF8315
GO

Mass spectrometryi

Molecular mass is 3111.4 Da from positions 1 - 30. Determined by MALDI. 1 Publication

Similar proteinsi

Entry informationi

Entry nameiCYO5_VIOOD
AccessioniPrimary (citable) accession number: P58437
Entry historyiIntegrated into UniProtKB/Swiss-Prot: December 5, 2001
Last sequence update: December 5, 2001
Last modified: October 25, 2017
This is version 49 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Direct protein sequencing

Documents

  1. SIMILARITY comments
    Index of protein domains and families

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