ID   PR7L_MMTVG              Reviewed;         324 AA.
AC   P03321;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   21-JUL-1986, sequence version 1.
DT   02-DEC-2020, entry version 64.
DE   RecName: Full=Protein PR73 5'-endogenous;
OS   Mouse mammary tumor virus (strain GR) (MMTV).
OC   Viruses; Riboviria; Pararnavirae; Artverviricota; Revtraviricetes;
OC   Ortervirales; Retroviridae; Orthoretrovirinae; Betaretrovirus.
OX   NCBI_TaxID=11760;
OH   NCBI_TaxID=10090; Mus musculus (Mouse).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX   PubMed=6276778; DOI=10.1038/295622a0;
RA   Kennedy N., Knedlitschek G., Groner B., Hynes N.E., Herrlich P.,
RA   Michalides R., van Ooyen A.J.J.;
RT   "Long terminal repeats of endogenous mouse mammary tumour virus contain a
RT   long open reading frame which extends into adjacent sequences.";
RL   Nature 295:622-624(1982).
CC   -!- FUNCTION: Superantigen. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Membrane {ECO:0000305}; Single-pass type II
CC       membrane protein {ECO:0000305}.
CC   -!- MISCELLANEOUS: This protein is coded in the long terminal repeat (LTR).
CC   -!- SIMILARITY: Belongs to the mouse mammary tumor virus PR73 superantigen
CC       family. {ECO:0000305}.
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DR   EMBL; J02271; -; NOT_ANNOTATED_CDS; Genomic_RNA.
DR   PIR; A03921; QQMV6M.
DR   SMR; P03321; -.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   InterPro; IPR001213; MMTV_SAg.
DR   Pfam; PF01054; MMTV_SAg; 1.
PE   3: Inferred from homology;
KW   Glycoprotein; Membrane; Signal-anchor; Superantigen; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..324
FT                   /note="Protein PR73 5'-endogenous"
FT                   /id="PRO_0000125503"
FT   TOPO_DOM        1..48
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        49..69
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        70..324
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        83
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        84
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        93
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        97
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        135
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        150
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   324 AA;  37220 MW;  5E53CDF653A3086E CRC64;
     MLLVLPRLQQ KWLNSRECPT LRREAAKGLF PTKDDPSACT RMSPSDKDIL ILCCKLGIAL
     LCLGLLGEVA VRARRALTLD SFNNSSVQDY NLNNSENSTF LLGQGPQPTS SYKPHRLCPS
     EIEIRMLAKN YIFTNKTNPI GRLLIMMLRN ESLSFSTIFT QIQRLEMGIE NRKRRSTSVE
     EQVQGLRASG LEVKRGKRST LVKIGDRWWQ PGTYRGPYIY RPTDAPLPYT GRYDLNFDRW
     VTVNGYKVLY RSLPFRERLA RARPPWCVLT QEEKDDIKQQ VHDYIYLGTG MNVWGKIFHY
     TKEGAVARQL EHISADTFGM SYNG