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Protein

Capsid protein G8P

Gene

VIII

Organism
Enterobacteria phage M13 (Bacteriophage M13)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Self assembles to form a helical capsid wrapping up the viral genomic DNA. The capsid displays a filamentous structure with a length of 760-1950 nm and a width of 6-8 nm. The virion assembly and budding take place at the host inner membrane.

Names & Taxonomyi

Protein namesi
Recommended name:
Capsid protein G8P
Alternative name(s):
Coat protein B
Gene 8 protein
Short name:
G8P
M13 procoat
Major coat protein
Gene namesi
Name:VIII
OrganismiEnterobacteria phage M13 (Bacteriophage M13)
Taxonomic identifieri1977402 [NCBI]
Taxonomic lineageiVirusesssDNA virusesInoviridaeInovirus
Virus hostiEscherichia coli [TaxID: 562]
Proteomesi
  • UP000002111 Componenti: Genome

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Topological domaini24 – 47PeriplasmicAdd BLAST24
Transmembranei48 – 68HelicalAdd BLAST21
Topological domaini69 – 73Cytoplasmic5

GO - Cellular componenti

Keywords - Cellular componenti

Capsid protein, Helical capsid protein, Host cell inner membrane, Host cell membrane, Host membrane, Membrane, Virion

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 23Add BLAST23
ChainiPRO_000000329824 – 73Capsid protein G8PAdd BLAST50

Interactioni

Subunit structurei

Homomultimerizes. There are about 2,700 copies of this protein in the phage capsid.

Structurei

Secondary structure

173
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi29 – 39Combined sources11
Helixi41 – 46Combined sources6
Helixi48 – 67Combined sources20
Turni68 – 72Combined sources5

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
2CPBNMR-A24-73[»]
2CPSNMR-A24-73[»]
2MJZNMR-A/B/C/D/E/F/G/H/I/J/K/L/M/N/O/P/Q/R/S/T/U/V/W/X/Y/Z/a/b/c/d/e/f/g/h/i24-73[»]
ProteinModelPortaliP69541
SMRiP69541
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP69541

Family & Domainsi

Sequence similaritiesi

Belongs to the inovirus capsid protein family.Curated

Keywords - Domaini

Signal, Transmembrane, Transmembrane helix

Phylogenomic databases

OrthoDBiVOG090001SQ

Family and domain databases

Gene3Di1.20.5.80, 1 hit
InterProiView protein in InterPro
IPR008020 G8P
IPR023390 Phage_M13_G8P_capsid_dom_sf
PfamiView protein in Pfam
PF05371 Phage_Coat_Gp8, 1 hit
PIRSFiPIRSF004117 Phage_coat_B, 1 hit

Sequencei

Sequence statusi: Complete.

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

P69541-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKKSLVLKAS VAVATLVPML SFAAEGDDPA KAAFNSLQAS ATEYIGYAWA
60 70
MVVVIVGATI GIKLFKKFTS KAS
Length:73
Mass (Da):7,625
Last modified:March 15, 2005 - v1
Checksum:iD12EF68DB18E645C
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
V00604 Genomic DNA Translation: CAA23861.1
PIRiD04226 VCBPM3
RefSeqiNP_510890.1, NC_003287.2

Genome annotation databases

GeneIDi927333
KEGGivg:927333

Similar proteinsi

Entry informationi

Entry nameiCAPSD_BPM13
AccessioniPrimary (citable) accession number: P69541
Secondary accession number(s): P03617
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 21, 1986
Last sequence update: March 15, 2005
Last modified: February 28, 2018
This is version 79 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programViral Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome
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Main funding by: National Institutes of Health