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Protein

Defensin-like protein 2

Gene
N/A
Organism
Vigna unguiculata (Cowpea)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Has antibacterial activity against the Gram-positive bacterium S.aureus and the Gram-negative bacteria E.coli and P.syringae. Does not have antibacterial activity against the phytopathogenic bacteria R.solanacearum, Rhataybacter sp and Erwinia sp. Does not inhibit trypsin, chymotrypsin or alpha-amylases.1 Publication

Caution

Was initially thought to be a thionin.1 Publication

GO - Biological processi

Keywordsi

Molecular functionAntibiotic, Antimicrobial, Fungicide
Biological processPlant defense

Names & Taxonomyi

Protein namesi
Recommended name:
Defensin-like protein 2
Alternative name(s):
Cp-thionin II
Cp-thionin-2
Gamma-thionin II
OrganismiVigna unguiculata (Cowpea)
Taxonomic identifieri3917 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsfabidsFabalesFabaceaePapilionoideae50 kb inversion cladeNPAAA cladeindigoferoid/millettioid cladePhaseoleaeVigna

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002485101 – 46Defensin-like protein 2Add BLAST46

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Disulfide bondi3 ↔ 46By similarity
Disulfide bondi13 ↔ 33By similarity
Disulfide bondi19 ↔ 40By similarity
Disulfide bondi23 ↔ 42By similarity

Keywords - PTMi

Disulfide bond

Expressioni

Tissue specificityi

Present in seeds, cotyledons and leaves. Not found in roots or stems.1 Publication

Developmental stagei

Present in seeds and seedlings, levels decrease with seedling age. Light increases the rate of degradation. Present until 9 days in seedlings kept in the dark, not found after 6 days in seedlings kept in the light.1 Publication

Interactioni

Subunit structurei

Monomer.1 Publication

Structurei

3D structure databases

SMRiP84920
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Family and domain databases

Gene3Di3.30.30.10, 1 hit
InterProiView protein in InterPro
IPR036574 Scorpion_toxin-like_sf
SUPFAMiSSF57095 SSF57095, 1 hit

Sequencei

Sequence statusi: Complete.

P84920-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40 
KTCMTKKEGW GRCLIDTTCA HSCRKYGYMG GKCQGITRRC YCLLNC
Length:46
Mass (Da):5,242
Last modified:September 5, 2006 - v1
Checksum:i5FB07A2D1235954B
GO

Mass spectrometryi

Molecular mass is 5235.04 Da from positions 1 - 46. Determined by MALDI. 1 Publication

Cross-referencesi

3D structure databases

SMRiP84920
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Family and domain databases

Gene3Di3.30.30.10, 1 hit
InterProiView protein in InterPro
IPR036574 Scorpion_toxin-like_sf
SUPFAMiSSF57095 SSF57095, 1 hit
ProtoNetiSearch...

Entry informationi

Entry nameiDEF2_VIGUN
AccessioniPrimary (citable) accession number: P84920
Entry historyiIntegrated into UniProtKB/Swiss-Prot: September 5, 2006
Last sequence update: September 5, 2006
Last modified: September 12, 2018
This is version 27 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
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

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