ID   CAPS1_PFV1              Reviewed;         129 AA.
AC   A0A140F3K6;
DT   29-SEP-2021, integrated into UniProtKB/Swiss-Prot.
DT   11-MAY-2016, sequence version 1.
DT   23-FEB-2022, entry version 15.
DE   RecName: Full=Major capsid protein 1 {ECO:0000250|UniProtKB:A0A6M3VZT9};
DE   AltName: Full=MCP1 {ECO:0000250|UniProtKB:A0A6M3VZT9};
DE   AltName: Full=Major capsid protein VP1 {ECO:0000303|PubMed:26884161};
OS   Pyrobaculum filamentous virus 1 (PFV1).
OC   Viruses; Adnaviria; Zilligvirae; Taleaviricota; Tokiviricetes;
OC   Primavirales; Tristromaviridae; Alphatristromavirus;
OC   Alphatristromavirus PFV1.
OX   NCBI_TaxID=1805492;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], AND SUBCELLULAR LOCATION.
RC   STRAIN=1 {ECO:0000312|EMBL:AML61166.1};
RX   PubMed=26884161; DOI=10.1073/pnas.1518929113;
RA   Rensen E.I., Mochizuki T., Quemin E., Schouten S., Krupovic M.,
RA   Prangishvili D.;
RT   "A virus of hyperthermophilic archaea with a unique architecture among DNA
RT   viruses.";
RL   Proc. Natl. Acad. Sci. U.S.A. 113:2478-2483(2016).
CC   -!- FUNCTION: Self-assembles to form a helical, filamentous nucleocapsid
CC       mesuring 400 nm in length and 20 nm in width. Together with capsid
CC       protein 2, wraps arounds the DNA and maintains it in an A-form. Capsid
CC       proteins probably maintain the DNA in A-form by non-specific
CC       desolvation and specific coordination of the DNA phosphate groups by
CC       positively charged residues. This certainly protects the viral DNA
CC       under conditions such as the extreme desiccation of its host.
CC       {ECO:0000250|UniProtKB:A0A6M3VZT9}.
CC   -!- SUBUNIT: Heterodimer composed of major capsid protein 1 and major
CC       capsid protein 2. {ECO:0000250|UniProtKB:A0A6M3VZT9}.
CC   -!- SUBCELLULAR LOCATION: Virion {ECO:0000269|PubMed:26884161}.
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DR   EMBL; KU307456; AML61166.1; -; Genomic_DNA.
DR   RefSeq; YP_009237236.1; NC_029548.1.
DR   SMR; A0A140F3K6; -.
DR   GeneID; 30313572; -.
DR   KEGG; vg:30313572; -.
DR   Proteomes; UP000202991; Genome.
PE   3: Inferred from homology;
KW   Reference proteome; Virion.
FT   CHAIN           1..129
FT                   /note="Major capsid protein 1"
FT                   /id="PRO_0000453809"
SQ   SEQUENCE   129 AA;  14876 MW;  2780DACDC5C59605 CRC64;
     MSVVTTRARI AETLTEKHTL GIEKVVATDS WRVGITSREK KLGRINISAE ISRKIQDEAI
     AYARNKGIPY LPGINGIAWK LLRLKWLGYT DQINVVMRTV PAEWRDFLTQ IMENIQMESM
     YSELRKVRV