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Protein

Capsid protein

Gene

ORF3

Organism
Southern cowpea mosaic virus (SCPMV) (Southern bean mosaic virus (strain cowpea))
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

GO - Molecular functioni

  • calcium ion binding Source: CAFA
  • lipid binding Source: CAFA
  • RNA binding Source: CAFA
  • structural constituent of virion Source: CAFA

Names & Taxonomyi

Protein namesi
Recommended name:
Capsid protein
Alternative name(s):
Coat protein
Gene namesi
ORF Names:ORF3
OrganismiSouthern cowpea mosaic virus (SCPMV) (Southern bean mosaic virus (strain cowpea))
Taxonomic identifieri196398 [NCBI]
Taxonomic lineageiVirusesssRNA virusesssRNA positive-strand viruses, no DNA stageSobemovirus
Virus hostiGlycine max (Soybean) (Glycine hispida) [TaxID: 3847]
Phaseolus vulgaris (Kidney bean) (French bean) [TaxID: 3885]
Vigna mungo (Black gram) (Phaseolus mungo) [TaxID: 3915]
Vigna unguiculata (Cowpea) [TaxID: 3917]
Proteomesi
  • UP000008033 Componenti: Genome

Subcellular locationi

GO - Cellular componenti

  • T=3 icosahedral viral capsid Source: CAFA

Keywords - Cellular componenti

Capsid protein, T=3 icosahedral capsid protein, Virion

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
PropeptideiPRO_00000402091 – 191 PublicationAdd BLAST19
ChainiPRO_000004021020 – 279Capsid proteinAdd BLAST260

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei20N-acetylalanine; by host1 Publication1
Disulfide bondi188 ↔ 195

Keywords - PTMi

Acetylation, Disulfide bond

PTM databases

iPTMnetiP03607.

Interactioni

Subunit structurei

The virus particle has a shell of 180 protein subunits arranged with T=3 icosahedral symmetry around a core of RNA. Each icosahedral unit contains three protein subunits.

Structurei

Secondary structure

1279
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Beta strandi78 – 80Combined sources3
Beta strandi82 – 84Combined sources3
Beta strandi86 – 99Combined sources14
Beta strandi104 – 109Combined sources6
Helixi113 – 115Combined sources3
Helixi117 – 123Combined sources7
Beta strandi126 – 140Combined sources15
Beta strandi149 – 155Combined sources7
Helixi166 – 170Combined sources5
Beta strandi172 – 174Combined sources3
Beta strandi176 – 179Combined sources4
Turni185 – 192Combined sources8
Beta strandi203 – 205Combined sources3
Beta strandi212 – 217Combined sources6
Helixi221 – 228Combined sources8
Helixi235 – 238Combined sources4
Beta strandi242 – 248Combined sources7
Beta strandi256 – 269Combined sources14
Helixi275 – 277Combined sources3

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
4SBVX-ray2.80A/B/C20-279[»]
DisProtiDP00064.
ProteinModelPortaliP03607.
SMRiP03607.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP03607.

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni20 – 83R domain, interaction with RNAAdd BLAST64
Regioni84 – 269S domain, virion shellAdd BLAST186
Regioni270 – 279P domain, projecting10

Sequence similaritiesi

Phylogenomic databases

OrthoDBiVOG090000UC.

Family and domain databases

InterProiView protein in InterPro
IPR000937. Capsid_prot_S-dom_vir.
PfamiView protein in Pfam
PF00729. Viral_coat. 1 hit.
PRINTSiPR00233. ICOSAHEDRAL.
PROSITEiView protein in PROSITE
PS00555. ICOSAH_VIR_COAT_S. 1 hit.

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P03607-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSGLFHHRTK PREIRAFVMA TRLTKKQLAQ AIQNTLPNPP RRKRRAKRRA
60 70 80 90 100
AQVPKPTQAG VSMAPIAQGT MVKLRPPMLR SSMDVTILSH CELSTELAVT
110 120 130 140 150
VTIVVTSELV MPFTVGTWLR GVAQNWSKYA WVAIRYTYLP SCPTTTSGAI
160 170 180 190 200
HMGFQYDMAD TLPVSVNQLS NLKGYVTGPV WEGQSGLCFV NNTKCPDTSR
210 220 230 240 250
AITIALDTNE VSEKRYPFKT ATDYATAVGV NANIGNILVP ARLVTAMEGG
260 270
SSKTAVNTGR LYASYTIRLI EPIAAALNL
Length:279
Mass (Da):30,527
Last modified:May 1, 1991 - v2
Checksum:i9B1BD427642493C1
GO

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural varianti101V → D. 1
Natural varianti245T → I. 1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M23021 Genomic RNA. Translation: AAA46567.1.
PIRiA04218. VCBW.
D33739. VCBWSC.
RefSeqiNP_042303.1. NC_001625.2.

Genome annotation databases

GeneIDi1481841.
KEGGivg:1481841.

Similar proteinsi

Entry informationi

Entry nameiCAPSD_SCPMV
AccessioniPrimary (citable) accession number: P03607
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 21, 1986
Last sequence update: May 1, 1991
Last modified: October 25, 2017
This is version 107 of the entry and version 2 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programViral Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Direct protein sequencing, Reference proteome

Documents

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