ID   PR73_MMTVG              Reviewed;         320 AA.
AC   P03320;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   21-JUL-1986, sequence version 1.
DT   23-FEB-2022, entry version 58.
DE   RecName: Full=Protein PR73;
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 DNA].
RX   PubMed=6325151; DOI=10.1002/j.1460-2075.1982.tb01115.x;
RA   Fasel N., Pearson K., Buetti E., Diggelmann H.;
RT   "The region of mouse mammary tumor virus DNA containing the long terminal
RT   repeat includes a long coding sequence and signals for hormonally regulated
RT   transcription.";
RL   EMBO J. 1:3-7(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; V01175; CAA24500.1; -; Genomic_DNA.
DR   PIR; A03920; QQEV3M.
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..320
FT                   /note="Protein PR73"
FT                   /id="PRO_0000125502"
FT   TOPO_DOM        1..44
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        45..65
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        66..320
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        80
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        81
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        90
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        94
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        132
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        147
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   320 AA;  36969 MW;  4C688B7B85324252 CRC64;
     MPRLQQKWLN SRECPTLRGE AAKGLFPTKD DPSAHKRMSP SDKDILILCC KLGIALLCLG
     LLGEVAVRAR RALTLDSFNN NSSVQDYNLN DSENSTFLLG QGPQPTSSYK PHRICPLEIE
     IRMLAKKYIF TNKTNPIGRL LVTMLRNESL SFSTIFTQIQ KLEMGIENRK RRSKSIEEQV
     QGLLASGLEV KKGKKSVFVK IGDRWWQPRT YRGPYIYRPT DAPLPYTGRY DLNWDRWVTI
     NGYKVLYRSL PFRERLARAR PPWCMLTEKE KDDMKQQVHD YIYLGTGMHF WGKVFHTKEG
     AVAGLIEHYS AKTYGMSYYD