ID A0A2K5HMW0_COLAP Unreviewed; 451 AA.
AC A0A2K5HMW0;
DT 28-MAR-2018, integrated into UniProtKB/TrEMBL.
DT 28-MAR-2018, sequence version 1.
DT 24-JAN-2024, entry version 33.
DE RecName: Full=Gamma-aminobutyric acid receptor subunit alpha-2 {ECO:0000256|ARBA:ARBA00017970};
DE AltName: Full=GABA(A) receptor subunit alpha-2 {ECO:0000256|ARBA:ARBA00033009};
OS Colobus angolensis palliatus (Peters' Angolan colobus).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini;
OC Cercopithecidae; Colobinae; Colobus.
OX NCBI_TaxID=336983 {ECO:0000313|Ensembl:ENSCANP00000005682.1, ECO:0000313|Proteomes:UP000233080};
RN [1] {ECO:0000313|Ensembl:ENSCANP00000005682.1}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (SEP-2023) to UniProtKB.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000256|ARBA:ARBA00004651};
CC Multi-pass membrane protein {ECO:0000256|ARBA:ARBA00004651}. Cell
CC projection, dendrite {ECO:0000256|ARBA:ARBA00004279}. Cytoplasmic
CC vesicle membrane {ECO:0000256|ARBA:ARBA00004156}. Membrane
CC {ECO:0000256|ARBA:ARBA00004141}; Multi-pass membrane protein
CC {ECO:0000256|ARBA:ARBA00004141}. Postsynaptic cell membrane
CC {ECO:0000256|ARBA:ARBA00034104}; Multi-pass membrane protein
CC {ECO:0000256|ARBA:ARBA00034104}. Synaptic cell membrane
CC {ECO:0000256|ARBA:ARBA00034099}; Multi-pass membrane protein
CC {ECO:0000256|ARBA:ARBA00034099}.
CC -!- SIMILARITY: Belongs to the ligand-gated ion channel (TC 1.A.9) family.
CC Gamma-aminobutyric acid receptor (TC 1.A.9.5) subfamily. GABRA2 sub-
CC subfamily. {ECO:0000256|ARBA:ARBA00010542}.
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DR RefSeq; XP_011782734.1; XM_011927344.1.
DR AlphaFoldDB; A0A2K5HMW0; -.
DR SMR; A0A2K5HMW0; -.
DR Ensembl; ENSCANT00000021618.1; ENSCANP00000005682.1; ENSCANG00000019089.1.
DR GeneID; 105501405; -.
DR CTD; 2555; -.
DR OMA; AXSITEV; -.
DR OrthoDB; 4265336at2759; -.
DR Proteomes; UP000233080; Unplaced.
DR GO; GO:0034707; C:chloride channel complex; IEA:UniProtKB-KW.
DR GO; GO:0030659; C:cytoplasmic vesicle membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0030425; C:dendrite; IEA:UniProtKB-SubCell.
DR GO; GO:0045211; C:postsynaptic membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0005254; F:chloride channel activity; IEA:UniProtKB-KW.
DR GO; GO:0005230; F:extracellular ligand-gated monoatomic ion channel activity; IEA:InterPro.
DR GO; GO:0004890; F:GABA-A receptor activity; IEA:InterPro.
DR GO; GO:0007214; P:gamma-aminobutyric acid signaling pathway; IEA:InterPro.
DR CDD; cd19035; LGIC_ECD_GABAAR_A2; 1.
DR CDD; cd19052; LGIC_TM_GABAAR_alpha; 1.
DR Gene3D; 2.70.170.10; Neurotransmitter-gated ion-channel ligand-binding domain; 1.
DR Gene3D; 1.20.58.390; Neurotransmitter-gated ion-channel transmembrane domain; 1.
DR InterPro; IPR006028; GABAA/Glycine_rcpt.
DR InterPro; IPR001390; GABAAa_rcpt.
DR InterPro; IPR005432; GABBAa2_rcpt.
DR InterPro; IPR047024; Gabra-1-6_TM.
DR InterPro; IPR047023; Gabra-2_ECD.
DR InterPro; IPR006202; Neur_chan_lig-bd.
DR InterPro; IPR036734; Neur_chan_lig-bd_sf.
DR InterPro; IPR006201; Neur_channel.
DR InterPro; IPR036719; Neuro-gated_channel_TM_sf.
DR InterPro; IPR038050; Neuro_actylchol_rec.
DR InterPro; IPR006029; Neurotrans-gated_channel_TM.
DR InterPro; IPR018000; Neurotransmitter_ion_chnl_CS.
DR NCBIfam; TIGR00860; LIC; 1.
DR PANTHER; PTHR18945:SF218; GAMMA-AMINOBUTYRIC ACID RECEPTOR SUBUNIT ALPHA-2; 1.
DR PANTHER; PTHR18945; NEUROTRANSMITTER GATED ION CHANNEL; 1.
DR Pfam; PF02931; Neur_chan_LBD; 1.
DR Pfam; PF02932; Neur_chan_memb; 1.
DR PRINTS; PR01079; GABAARALPHA.
DR PRINTS; PR01615; GABAARALPHA2.
DR PRINTS; PR00253; GABAARECEPTR.
DR PRINTS; PR00252; NRIONCHANNEL.
DR SUPFAM; SSF90112; Neurotransmitter-gated ion-channel transmembrane pore; 1.
DR SUPFAM; SSF63712; Nicotinic receptor ligand binding domain-like; 1.
DR PROSITE; PS00236; NEUROTR_ION_CHANNEL; 1.
PE 3: Inferred from homology;
KW Cell membrane {ECO:0000256|ARBA:ARBA00022475};
KW Cell projection {ECO:0000256|ARBA:ARBA00023273};
KW Chloride {ECO:0000256|ARBA:ARBA00023214};
KW Chloride channel {ECO:0000256|ARBA:ARBA00023173};
KW Cytoplasmic vesicle {ECO:0000256|ARBA:ARBA00023329};
KW Glycoprotein {ECO:0000256|ARBA:ARBA00023180};
KW Ion channel {ECO:0000256|ARBA:ARBA00023303, ECO:0000256|RuleBase:RU000687};
KW Ion transport {ECO:0000256|ARBA:ARBA00023065,
KW ECO:0000256|RuleBase:RU000687};
KW Ligand-gated ion channel {ECO:0000256|ARBA:ARBA00023286};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|RuleBase:RU000687};
KW Postsynaptic cell membrane {ECO:0000256|ARBA:ARBA00023257};
KW Receptor {ECO:0000256|ARBA:ARBA00023170};
KW Reference proteome {ECO:0000313|Proteomes:UP000233080};
KW Signal {ECO:0000256|ARBA:ARBA00022729, ECO:0000256|RuleBase:RU000687};
KW Synapse {ECO:0000256|ARBA:ARBA00023018};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692,
KW ECO:0000256|RuleBase:RU000687};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989,
KW ECO:0000256|RuleBase:RU000687};
KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|RuleBase:RU000687}.
FT SIGNAL 1..28
FT /evidence="ECO:0000256|RuleBase:RU000687"
FT CHAIN 29..451
FT /note="Gamma-aminobutyric acid receptor subunit alpha-2"
FT /evidence="ECO:0000256|RuleBase:RU000687"
FT /id="PRO_5022252127"
FT TRANSMEM 250..274
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU000687"
FT TRANSMEM 281..300
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU000687"
FT TRANSMEM 315..337
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU000687"
FT TRANSMEM 423..441
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU000687"
FT DOMAIN 43..250
FT /note="Neurotransmitter-gated ion-channel ligand-binding"
FT /evidence="ECO:0000259|Pfam:PF02931"
FT DOMAIN 257..341
FT /note="Neurotransmitter-gated ion-channel transmembrane"
FT /evidence="ECO:0000259|Pfam:PF02932"
SQ SEQUENCE 451 AA; 51292 MW; 3518DDA45E80A91E CRC64;
MKTKLNIYNM QLLLFVFLVW DPARLVLANI QEDEAKNNIT IFTRILDRLL DGYDNRLRPG
LGDSITEVFT NIYVTSFGPV SDTDMEYTID VFFRQKWKDE RLKFKGPMNI LRLNNLMASK
IWTPDTFFHN GKKSVAHNMT MPNKLLRIQD DGTLLYTMRL TVQAECPMHL EDFPMDAHSC
PLKFGSYAYT TSEVTYIWTY NASDSVQVAP DGSRLNQYDL LGQSIGKETI KSSTGEYTVM
TAHFHLKRKI GYFVIQTYLP CIMTVILSQV SFWLNRESVP ARTVFGVTTV LTMTTLSISA
RNSLPKVAYA TAMDWFIAVC YAFVFSALIE FATVNYFTKR GWAWDGKSVV NDKKKEKASV
MIQNNAYAVA VANYAPNLSK DPVLSTISKS ATTPEPNKKP ENKPAEAKKT FNSVSKIDRM
SRIVFPVLFG TFNLVYWATY LNREPVLGVS P
//
