CAPSB_BPT3
ID CAPSB_BPT3 Reviewed; 433 AA.
AC P19728;
DT 01-FEB-1991, integrated into UniProtKB/Swiss-Prot.
DT 01-FEB-1996, sequence version 2.
DT 23-FEB-2022, entry version 66.
DE RecName: Full=Minor capsid protein {ECO:0000255|HAMAP-Rule:MF_04119};
DE AltName: Full=Gene product 10B;
DE Short=Gp10B;
DE AltName: Full=Minor head protein {ECO:0000255|HAMAP-Rule:MF_04119};
GN Name=10;
OS Enterobacteria phage T3 (Bacteriophage T3).
OC Viruses; Duplodnaviria; Heunggongvirae; Uroviricota; Caudoviricetes;
OC Caudovirales; Autographiviridae; Studiervirinae; Teetrevirus;
OC Escherichia virus T3.
OX NCBI_TaxID=10759;
OH NCBI_TaxID=562; Escherichia coli.
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=Luria;
RX PubMed=2760923; DOI=10.1016/0022-2836(89)90464-6;
RA Condreay J.P., Wright S.E., Molineux I.J.;
RT "Nucleotide sequence and complementation studies of the gene 10 region of
RT bacteriophage T3.";
RL J. Mol. Biol. 207:555-561(1989).
CC -!- FUNCTION: Assembles with the major capsid protein to form an
CC icosahedral capsid with a T=7 symmetry, about 60 nm in diameter, and
CC consisting of 415 capsid proteins. The major and minor capsid proteins
CC are incorporated into the capsid in about a 90/10 ratio respectively.
CC Once the capsid is formed, encapsidates one single copy of the viral
CC genome. {ECO:0000250|UniProtKB:P19727}.
CC -!- SUBUNIT: Interacts with the connector protein and the major capsid
CC protein. {ECO:0000255|HAMAP-Rule:MF_04119}.
CC -!- SUBCELLULAR LOCATION: Virion {ECO:0000255|HAMAP-Rule:MF_04119}.
CC -!- ALTERNATIVE PRODUCTS:
CC Event=Ribosomal frameshifting; Named isoforms=2;
CC Name=Minor capsid protein 10B;
CC IsoId=P19728-1; Sequence=Displayed;
CC Name=Major capsid protein 10A;
CC IsoId=P19693-1; Sequence=External;
CC -!- MISCELLANEOUS: The minor capsid protein is produced by a -1 ribosomal
CC frameshift near the C-terminus of the ORF coding for the major capsid
CC protein, producing a protein with a C-terminal extension compared to
CC the major capsid protein. The major capsid protein is produced by
CC conventional translation of the same ORF. {ECO:0000255|HAMAP-
CC Rule:MF_04119}.
CC -!- MISCELLANEOUS: [Isoform Minor capsid protein 10B]: Produced by -1
CC ribosomal frameshifting. {ECO:0000269|PubMed:2760923}.
CC -!- SIMILARITY: Belongs to the T7virus minor capsid protein family.
CC {ECO:0000255|HAMAP-Rule:MF_04119}.
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DR EMBL; X17255; CAA35155.1; -; Genomic_DNA.
DR EMBL; X15840; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR PIR; A33079; VBBPA3.
DR PIR; S04665; S04665.
DR RefSeq; NP_523334.1; NC_003298.1. [P19728-1]
DR SMR; P19728; -.
DR GeneID; 927449; -.
DR KEGG; vg:927449; -.
DR GO; GO:0019028; C:viral capsid; IEA:UniProtKB-UniRule.
DR HAMAP; MF_04119; CAPSID_PROTEIN_T7; 1.
DR InterPro; IPR003343; Big_2.
DR InterPro; IPR039009; Capsid_Gp10A/Gp10B.
DR InterPro; IPR008964; Invasin/intimin_cell_adhesion.
DR Pfam; PF02368; Big_2; 1.
DR SMART; SM00635; BID_2; 1.
DR SUPFAM; SSF49373; SSF49373; 1.
PE 3: Inferred from homology;
KW Capsid protein; Ribosomal frameshifting; Virion.
FT CHAIN 1..433
FT /note="Minor capsid protein"
FT /id="PRO_0000106521"
FT DOMAIN 353..419
FT /note="BIG2"
FT /evidence="ECO:0000255"
SQ SEQUENCE 433 AA; 45353 MW; E57F526F5F42C1D4 CRC64;
MANIQGGQQI GTNQGKGQSA ADKLALFLKV FGGEVLTAFA RTSVTMPRHM LRSIASGKSA
QFPVIGRTKA AYLKPGENLD DKRKDIKHTE KVIHIDGLLT ADVLIYDIED AMNHYDVRAE
YTAQLGESLA MAADGAVLAE LAGLVNLPDG SNENIEGLGK PTVLTLVKPT TGSLTDPVEL
GKAIIAQLTI ARASLTKNYV PAADRTFYTT PDNYSAILAA LMPNAANYQA LLDPERGTIR
NVMGFEVVEV PHLTAGGAGD TREDAPADQK HAFPATSSTT VKVALDNVVG LFQHRSAVGT
VKLKDLALER ARRANYQADQ IIAKYAMGHG GLRPEAAGAI VLPKGVGVIP DPTGVTLSQK
TMTLVEGASR ALTGTVQPSD ANQSLSWSSS AEDVAVWEAG KVVAKGVGTA DITATTSNGL
IASCKVIVNA ATS
