ID   1C04_GORGO              Reviewed;         366 AA.
AC   P30387;
DT   01-APR-1993, integrated into UniProtKB/Swiss-Prot.
DT   01-APR-1993, sequence version 1.
DT   03-AUG-2022, entry version 102.
DE   RecName: Full=Class I histocompatibility antigen, Gogo-C*0203 alpha chain;
DE   Flags: Precursor;
OS   Gorilla gorilla gorilla (Western lowland gorilla).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae;
OC   Gorilla.
OX   NCBI_TaxID=9595;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RX   PubMed=1744581; DOI=10.1084/jem.174.6.1491;
RA   Lawlor D.A., Warren E., Taylor P., Parham P.;
RT   "Gorilla class I major histocompatibility complex alleles: comparison to
RT   human and chimpanzee class I.";
RL   J. Exp. Med. 174:1491-1509(1991).
CC   -!- FUNCTION: Involved in the presentation of foreign antigens to the
CC       immune system.
CC   -!- SUBUNIT: Heterodimer of an alpha chain and a beta chain (beta-2-
CC       microglobulin).
CC   -!- SUBCELLULAR LOCATION: Membrane; Single-pass type I membrane protein.
CC   -!- SIMILARITY: Belongs to the MHC class I family. {ECO:0000305}.
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DR   EMBL; X60248; CAA42800.1; -; mRNA.
DR   PIR; JH0547; JH0547.
DR   AlphaFoldDB; P30387; -.
DR   SMR; P30387; -.
DR   Proteomes; UP000001519; Unplaced.
DR   GO; GO:0031901; C:early endosome membrane; IEA:UniProt.
DR   GO; GO:0012507; C:ER to Golgi transport vesicle membrane; IEA:UniProt.
DR   GO; GO:0009897; C:external side of plasma membrane; IBA:GO_Central.
DR   GO; GO:0005615; C:extracellular space; IBA:GO_Central.
DR   GO; GO:0071556; C:integral component of lumenal side of endoplasmic reticulum membrane; IEA:UniProt.
DR   GO; GO:0042612; C:MHC class I protein complex; IEA:UniProtKB-KW.
DR   GO; GO:0030670; C:phagocytic vesicle membrane; IEA:UniProt.
DR   GO; GO:0055038; C:recycling endosome membrane; IEA:UniProt.
DR   GO; GO:0002476; P:antigen processing and presentation of endogenous peptide antigen via MHC class Ib; IBA:GO_Central.
DR   GO; GO:0002474; P:antigen processing and presentation of peptide antigen via MHC class I; IEA:UniProtKB-KW.
DR   GO; GO:0006955; P:immune response; IEA:InterPro.
DR   Gene3D; 2.60.40.10; -; 1.
DR   Gene3D; 3.30.500.10; -; 1.
DR   InterPro; IPR007110; Ig-like_dom.
DR   InterPro; IPR036179; Ig-like_dom_sf.
DR   InterPro; IPR013783; Ig-like_fold.
DR   InterPro; IPR003597; Ig_C1-set.
DR   InterPro; IPR011161; MHC_I-like_Ag-recog.
DR   InterPro; IPR037055; MHC_I-like_Ag-recog_sf.
DR   InterPro; IPR011162; MHC_I/II-like_Ag-recog.
DR   InterPro; IPR001039; MHC_I_a_a1/a2.
DR   InterPro; IPR010579; MHC_I_a_C.
DR   Pfam; PF07654; C1-set; 1.
DR   Pfam; PF00129; MHC_I; 1.
DR   Pfam; PF06623; MHC_I_C; 1.
DR   PRINTS; PR01638; MHCCLASSI.
DR   SMART; SM00407; IGc1; 1.
DR   SUPFAM; SSF48726; SSF48726; 1.
DR   SUPFAM; SSF54452; SSF54452; 1.
DR   PROSITE; PS50835; IG_LIKE; 1.
PE   2: Evidence at transcript level;
KW   Disulfide bond; Glycoprotein; Immunity; Membrane; MHC I;
KW   Reference proteome; Signal; Transmembrane; Transmembrane helix.
FT   SIGNAL          1..24
FT                   /evidence="ECO:0000250"
FT   CHAIN           25..366
FT                   /note="Class I histocompatibility antigen, Gogo-C*0203
FT                   alpha chain"
FT                   /id="PRO_0000018908"
FT   TOPO_DOM        25..308
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        309..332
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        333..366
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   DOMAIN          209..297
FT                   /note="Ig-like C1-type"
FT   REGION          25..114
FT                   /note="Alpha-1"
FT   REGION          115..206
FT                   /note="Alpha-2"
FT   REGION          207..298
FT                   /note="Alpha-3"
FT   REGION          299..308
FT                   /note="Connecting peptide"
FT   CARBOHYD        110
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000250"
FT   DISULFID        125..188
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
FT   DISULFID        227..283
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00114"
SQ   SEQUENCE   366 AA;  40970 MW;  EE962C8189CAC001 CRC64;
     MRVMAPRTLI LLLSGALALT ETWAGSHSMR YFYTSVSRPG RGEPRFISVG YVDDTQFVRF
     DSDAASPRGE PRAPWVEQEG PEYWDRETQK YKRQAQTDRV NLRKLRGYYN QSEDGSHTLQ
     SMYGCDLGPD GRLLRGYSQF AYDGKDYIAL NEDLRSWTAA DTAAQVTQRK WEAARVAEQE
     RAYLEGLCVE WLRRYLENGK ETLQRAEPPK THVTHHPLSD HEATLRCWAL GFYPAEITLT
     WQRDGEDQTQ DTELVETRPA GDGTFQKWAA VVVPSGQEQR YTCHMQHEGL PEPLTLRWEP
     SSQPTIPIVG IVVGLAVLVV LAVLGAVVTA MMCRRKSSGG KGGSCSQAAC SNSAQGSDES
     LITCKA