ID A0A2K5CHT5_AOTNA Unreviewed; 488 AA.
AC A0A2K5CHT5;
DT 28-MAR-2018, integrated into UniProtKB/TrEMBL.
DT 28-MAR-2018, sequence version 1.
DT 27-MAR-2024, entry version 30.
DE RecName: Full=Neuronal acetylcholine receptor subunit alpha-3 {ECO:0000256|ARBA:ARBA00039990};
GN Name=CHRNA3 {ECO:0000313|Ensembl:ENSANAP00000008273.1};
OS Aotus nancymaae (Ma's night monkey).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Platyrrhini; Aotidae;
OC Aotus.
OX NCBI_TaxID=37293 {ECO:0000313|Ensembl:ENSANAP00000008273.1, ECO:0000313|Proteomes:UP000233020};
RN [1] {ECO:0000313|Ensembl:ENSANAP00000008273.1}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (SEP-2023) to UniProtKB.
CC -!- FUNCTION: After binding acetylcholine, the AChR responds by an
CC extensive change in conformation that affects all subunits and leads to
CC opening of an ion-conducting channel across the plasma membrane.
CC {ECO:0000256|ARBA:ARBA00003328}.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000256|ARBA:ARBA00004651};
CC Multi-pass membrane protein {ECO:0000256|ARBA:ARBA00004651}. Golgi
CC apparatus {ECO:0000256|ARBA:ARBA00004555}. 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 Acetylcholine receptor (TC 1.A.9.1) subfamily. Alpha-3/CHRNA3 sub-
CC subfamily. {ECO:0000256|ARBA:ARBA00038373}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|RuleBase:RU000687}.
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DR AlphaFoldDB; A0A2K5CHT5; -.
DR Ensembl; ENSANAT00000026054.1; ENSANAP00000008273.1; ENSANAG00000022175.1.
DR GeneTree; ENSGT00940000158487; -.
DR Proteomes; UP000233020; Unplaced.
DR GO; GO:0045211; C:postsynaptic membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0022848; F:acetylcholine-gated monoatomic cation-selective channel activity; IEA:InterPro.
DR GO; GO:0004888; F:transmembrane signaling receptor activity; IEA:InterPro.
DR CDD; cd19016; LGIC_ECD_nAChR_A3; 1.
DR CDD; cd19064; LGIC_TM_nAChR; 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; 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 InterPro; IPR002394; Nicotinic_acetylcholine_rcpt.
DR NCBIfam; TIGR00860; LIC; 1.
DR PANTHER; PTHR18945:SF831; NEURONAL ACETYLCHOLINE RECEPTOR SUBUNIT ALPHA-3; 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; PR00254; NICOTINICR.
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 Disulfide bond {ECO:0000256|ARBA:ARBA00023157};
KW Glycoprotein {ECO:0000256|ARBA:ARBA00023180};
KW Golgi apparatus {ECO:0000256|ARBA:ARBA00023034};
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:UP000233020};
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..30
FT /evidence="ECO:0000256|RuleBase:RU000687"
FT CHAIN 31..488
FT /note="Neuronal acetylcholine receptor subunit alpha-3"
FT /evidence="ECO:0000256|RuleBase:RU000687"
FT /id="PRO_5022251342"
FT TRANSMEM 241..265
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU000687"
FT TRANSMEM 272..294
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU000687"
FT TRANSMEM 306..327
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU000687"
FT DOMAIN 34..239
FT /note="Neurotransmitter-gated ion-channel ligand-binding"
FT /evidence="ECO:0000259|Pfam:PF02931"
FT DOMAIN 247..466
FT /note="Neurotransmitter-gated ion-channel transmembrane"
FT /evidence="ECO:0000259|Pfam:PF02932"
FT REGION 456..488
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 456..482
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 488 AA; 55657 MW; E0C67B58B8661544 CRC64;
MGSRPLSPPR ALSSPRLLLL LLCLLPVARA SEAEHRLFER LFEDYNEIIR PVANVSDPVI
IHFEVSMSQL VKVDEVNQIM ETNLWLKQIW NDYKLKWNPS DYGGAEFMRV PAQKIWKPDI
VLYNNAVGDF QVDDKTKALL KYTGEVTWMP PAIFKSSCKI DVTYFPFDYQ NCTMKFGSWS
YDKAKIDLVL IGSSMNLKDY WESGEWAIIK APGYKHDIKY NCCEEIYPDV TYSLYIRRLP
LFYTINLIIP CLLISCLTVL VFYLPSDCGE KVTLCISVLL SLTVFLLVIT ETIPSTSLVI
PLIGEYLLFT MIFVTLSIVI TVFVLNVHYR TPTTHTMPSW VKTVFLNLLP RVMFMTRPSS
SEGSAQKPRP PYGAELSNLN CFSRTEGRGC KDGYPCQDRM CGYCHHRRIK ISNFSANLTR
SSSSESVDAV LSLSALSPEI KEAIQSVKYI AENMKAQNEA KEEQKAQEIQ QLKRKEKSTE
ISDQEPGL
//
