ID   TSP_BPMBZ               Reviewed;         581 AA.
AC   Q853F7;
DT   29-APR-2015, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   23-FEB-2022, entry version 56.
DE   RecName: Full=Tail sheath protein {ECO:0000305};
DE            Short=TSP;
DE   AltName: Full=Gene product 124 {ECO:0000305};
DE            Short=gp124;
GN   Name=124 {ECO:0000312|EMBL:AAN16780.1};
OS   Mycobacterium phage Bxz1 (Mycobacteriophage Bxz1).
OC   Viruses; Duplodnaviria; Heunggongvirae; Uroviricota; Caudoviricetes;
OC   Caudovirales; Myoviridae; Bixzunavirus.
OX   NCBI_TaxID=205877 {ECO:0000312|Proteomes:UP000000730};
OH   NCBI_TaxID=1772; Mycolicibacterium smegmatis (Mycobacterium smegmatis).
OH   NCBI_TaxID=1810; Mycolicibacterium vaccae (Mycobacterium vaccae).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=12705866; DOI=10.1016/s0092-8674(03)00233-2;
RA   Pedulla M.L., Ford M.E., Houtz J.M., Karthikeyan T., Wadsworth C.,
RA   Lewis J.A., Jacobs-Sera D., Falbo J., Gross J., Pannunzio N.R., Brucker W.,
RA   Kumar V., Kandasamy J., Keenan L., Bardarov S., Kriakov J., Lawrence J.G.,
RA   Jacobs W.R. Jr., Hendrix R.W., Hatfull G.F.;
RT   "Origins of highly mosaic mycobacteriophage genomes.";
RL   Cell 113:171-182(2003).
CC   -!- FUNCTION: Polymerizes as an extended structure around the baseplate-
CC       tail tube complex. During ejection, the sheath shifts to a contracted
CC       form, thereby making the inner tail tube protrude through the host cell
CC       envelope. {ECO:0000250|UniProtKB:P79678}.
CC   -!- SUBUNIT: Homomultimer. {ECO:0000250|UniProtKB:P79678}.
CC   -!- SUBCELLULAR LOCATION: Virion {ECO:0000250|UniProtKB:P79678}. Host
CC       cytoplasm {ECO:0000250|UniProtKB:P79678}. Note=Tail.
CC       {ECO:0000250|UniProtKB:P79678}.
CC   -!- SIMILARITY: Belongs to the myoviridae tail sheath protein family.
CC       {ECO:0000305}.
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DR   EMBL; AY129337; AAN16780.1; -; Genomic_DNA.
DR   RefSeq; NP_818197.1; NC_004687.1.
DR   GeneID; 1259809; -.
DR   KEGG; vg:1259809; -.
DR   Proteomes; UP000000730; Genome.
DR   GO; GO:0030430; C:host cell cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0098027; C:virus tail, sheath; IEA:UniProtKB-KW.
DR   GO; GO:0099000; P:viral genome ejection through host cell envelope, contractile tail mechanism; IEA:UniProtKB-KW.
PE   3: Inferred from homology;
KW   Host cytoplasm; Reference proteome; Viral contractile tail ejection system;
KW   Viral genome ejection through host cell envelope;
KW   Viral penetration into host cytoplasm; Viral tail protein;
KW   Viral tail sheath protein; Virion; Virus entry into host cell.
FT   CHAIN           1..581
FT                   /note="Tail sheath protein"
FT                   /id="PRO_0000432779"
SQ   SEQUENCE   581 AA;  62819 MW;  763DF2CA2C7071FE CRC64;
     MAIDFSQYQT PGVYTEAVGA PQLGIRSSVP TAVAIFGTAV GYQTYRESIR INPDTGETIT
     TQILALVGEP TGGSFKLSLA GEPTGNIPFN ATQGQVQSAL RALPNVEDDE VTVLGDPGGP
     WTVTFTKAVA ALTKDVTGLT GGDNPDLNIA SEQTGVPAMN RALAKKGIKT DTIRVVNPNS
     GQVYVLGTDY VVTRVNAGED GEANTRDDLY TIQRVVDGGH IDPGDIVQLS YRYTDPNYHE
     VIRFTDPDDI QDFYGPAFDE AGNVQSEITL CAQLAITNGA STILACAVDP EGDTVTMGDY
     QNALNKFRDE DEIAIIVAGT GAQPIQALVQ QHVSAQSNNK YERRAILGMD GSVTPVPSAT
     RIANAQSIKD QRVALISPSS FVYYAPELNR EVVLGGQFMA AAVAGKSVSA IAAMPLTRKV
     IRGFSGPAEV QRDGEKSRES SEGLMVIEKT PRNLVHVRHG VTTDPTSLHT REWNIIGQQD
     VMVYRIRDYL DADGLIGMPI YDTTIVQVKA SAEAALVWLV DNNIIRGYRN LKARQIERQP
     DVIEVRYEWR PAYPLNYIVV RYSIAPETGD ITSTIEGTTS F