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Protein

Glycine receptor subunit alpha-1

Gene

GLRA1

Organism
Bos taurus (Bovine)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

Glycine receptors are ligand-gated chloride channels. Channel opening is triggered by extracellular glycine. Channel opening is also triggered by taurine and beta-alanine. Channel characteristics depend on the subunit composition; heteropentameric channels are activated by lower glycine levels and display faster desensitization (By similarity). Plays an important role in the down-regulation of neuronal excitability (PubMed:11178872). Contributes to the generation of inhibitory postsynaptic currents. Channel activity is potentiated by ethanol (By similarity). Potentiation of channel activity by intoxicating levels ot ethanol contribute to the sedative effects of ethanol (By similarity).By similarity1 Publication

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi220 – 2201ZincBy similarity
Metal bindingi222 – 2221ZincBy similarity
Metal bindingi243 – 2431ZincBy similarity
Sitei289 – 2891Important for obstruction of the ion pore in the closed conformationBy similarity

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Chloride channel, Ion channel, Ligand-gated ion channel, Receptor

Keywords - Biological processi

Ion transport, Transport

Keywords - Ligandi

Chloride, Metal-binding, Zinc

Enzyme and pathway databases

ReactomeiR-BTA-975298. Ligand-gated ion channel transport.

Names & Taxonomyi

Protein namesi
Recommended name:
Glycine receptor subunit alpha-1
Alternative name(s):
Glycine receptor 48 kDa subunit
Glycine receptor strychnine-binding subunit
Gene namesi
Name:GLRA1
OrganismiBos taurus (Bovine)
Taxonomic identifieri9913 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaRuminantiaPecoraBovidaeBovinaeBos
Proteomesi
  • UP000009136 Componenti: Chromosome 7

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Topological domaini29 – 250222ExtracellularBy similarityAdd
BLAST
Transmembranei251 – 27222Helical; Name=1By similarityAdd
BLAST
Topological domaini273 – 2775CytoplasmicBy similarity
Transmembranei278 – 29821Helical; Name=2By similarityAdd
BLAST
Topological domaini299 – 30911ExtracellularBy similarityAdd
BLAST
Transmembranei310 – 33021Helical; Name=3By similarityAdd
BLAST
Topological domaini331 – 42595CytoplasmicBy similarityAdd
BLAST
Transmembranei426 – 44621Helical; Name=4By similarityAdd
BLAST
Topological domaini447 – 45711ExtracellularBy similarityAdd
BLAST

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cell junction, Cell membrane, Cell projection, Membrane, Postsynaptic cell membrane, Synapse

Pathology & Biotechi

Involvement in diseasei

Defects in GLRA1 are the cause of inherited congenital myoclonus of Poll Hereford calves. It is an autosomal recessive disease characterized by hyperesthesia and myoclonic jerks of the skeletal musculature that occur both spontaneously and in response to sensory stimuli.

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Signal peptidei1 – 2828By similarityAdd
BLAST
Chaini29 – 457429Glycine receptor subunit alpha-1PRO_0000000411Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Glycosylationi66 – 661N-linked (GlcNAc...)Sequence analysis
Disulfide bondi166 ↔ 180By similarity
Disulfide bondi226 ↔ 237By similarity

Keywords - PTMi

Disulfide bond, Glycoprotein

Proteomic databases

PaxDbiP57695.
PRIDEiP57695.

Expressioni

Tissue specificityi

Detected on spinal cord neurons (at protein level). Detected in spinal cord.1 Publication

Interactioni

Subunit structurei

Homopentamer (in vitro). Interacts with GLRB to form heteropentameric channels; this is probably the predominant form in vivo. Heteropentamer composed of two GLRA1 and three GLRB. Heteropentamer composed of three GLRA1 and two GLRB. Both homopentamers and heteropentamers form functional ion channels, but their characteristics are subtly different.By similarity

Protein-protein interaction databases

STRINGi9913.ENSBTAP00000019143.

Structurei

3D structure databases

ProteinModelPortaliP57695.
SMRiP57695. Positions 277-337.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni230 – 2356Strychnine-bindingBy similarity

Domaini

The channel pore is formed by pentameric assembly of the second transmembrane domain from all five subunits. Channel opening is effected by an outward rotation of the transmembrane domains that increases the diameter of the pore.By similarity

Sequence similaritiesi

Keywords - Domaini

Signal, Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiKOG3643. Eukaryota.
ENOG410XPWH. LUCA.
GeneTreeiENSGT00760000118821.
HOGENOMiHOG000231336.
HOVERGENiHBG051707.
InParanoidiP57695.
KOiK05193.
OMAiFNFAYGM.
OrthoDBiEOG091G0805.
TreeFamiTF315453.

Family and domain databases

Gene3Di2.70.170.10. 1 hit.
InterProiIPR006028. GABAA/Glycine_rcpt.
IPR008127. Glycine_rcpt_A.
IPR008128. Glycine_rcpt_A1.
IPR006202. Neur_chan_lig-bd.
IPR006201. Neur_channel.
IPR006029. Neurotrans-gated_channel_TM.
IPR018000. Neurotransmitter_ion_chnl_CS.
[Graphical view]
PANTHERiPTHR18945. PTHR18945. 1 hit.
PfamiPF02931. Neur_chan_LBD. 1 hit.
PF02932. Neur_chan_memb. 1 hit.
[Graphical view]
PRINTSiPR00253. GABAARECEPTR.
PR01673. GLYRALPHA.
PR01674. GLYRALPHA1.
PR00252. NRIONCHANNEL.
SUPFAMiSSF63712. SSF63712. 1 hit.
SSF90112. SSF90112. 1 hit.
TIGRFAMsiTIGR00860. LIC. 1 hit.
PROSITEiPS00236. NEUROTR_ION_CHANNEL. 1 hit.
[Graphical view]

Sequences (2)i

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

This entry describes 2 isoformsi produced by alternative splicing. AlignAdd to basket

Isoform a (identifier: P57695-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide

        10         20         30         40         50
MYSFNTLRLY LWETIVFFSL AASKEAEAAR SASKPMSPSD FLDKLMGRTS
60 70 80 90 100
GYDARIRPNF KGPPVNVSCN IFINSFGSIA ETTMDYRVNI FLRQQWNDPR
110 120 130 140 150
LAYNEYPDDS LDLDPSMLDS IWKPDLFFAN EKGAHFHEIT TDNKLLRISR
160 170 180 190 200
NGNVLYSIRI TLTLACPMDL KNFPMDVQTC IMQLESFGYT MNDLIFEWQE
210 220 230 240 250
QGAVQVADGL TLPQFILKEE KDLRYCTKHY NTGKFTCIEA RFHLERQMGY
260 270 280 290 300
YLIQMYIPSL LIVILSWISF WINMDAAPAR VGLGITTVLT MTTQSSGSRA
310 320 330 340 350
SLPKVSYVKA IDIWMAVCLL FVFSALLEYA AVNFVSRQHK ELLRFRRKRR
360 370 380 390 400
HHKSPMLNLF QEDEAGEGRF NFSAYGMGPA CLQAKDGISV KGANNSNTTN
410 420 430 440 450
PPPAPSKSPE EMRKLFIQRA KKIDKISRIG FPMAFLIFNM FYWIIYKIVR

REDVHNQ
Length:457
Mass (Da):52,614
Last modified:December 8, 2000 - v1
Checksum:i0C60A814C8ADFDDE
GO
Isoform b (identifier: P57695-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     354-361: Missing.

Show »
Length:449
Mass (Da):51,683
Checksum:iA19FF47E10176948
GO

Alternative sequence

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Alternative sequencei354 – 3618Missing in isoform b. 1 PublicationVSP_021141

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF268375 mRNA. Translation: AAG14346.1.
AF268366
, AF268358, AF268360, AF268361, AF268359, AF268362, AF268364, AF268365, AF268363 Genomic DNA. Translation: AAG41140.1.
AF268366
, AF268358, AF268360, AF268361, AF268359, AF268362, AF268364, AF268365, AF268363 Genomic DNA. Translation: AAG41141.1.
RefSeqiNP_776746.1. NM_174321.2. [P57695-1]
UniGeneiBt.5559.

Genome annotation databases

EnsembliENSBTAT00000019143; ENSBTAP00000019143; ENSBTAG00000014395. [P57695-1]
GeneIDi281783.
KEGGibta:281783.

Keywords - Coding sequence diversityi

Alternative splicing

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF268375 mRNA. Translation: AAG14346.1.
AF268366
, AF268358, AF268360, AF268361, AF268359, AF268362, AF268364, AF268365, AF268363 Genomic DNA. Translation: AAG41140.1.
AF268366
, AF268358, AF268360, AF268361, AF268359, AF268362, AF268364, AF268365, AF268363 Genomic DNA. Translation: AAG41141.1.
RefSeqiNP_776746.1. NM_174321.2. [P57695-1]
UniGeneiBt.5559.

3D structure databases

ProteinModelPortaliP57695.
SMRiP57695. Positions 277-337.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi9913.ENSBTAP00000019143.

Proteomic databases

PaxDbiP57695.
PRIDEiP57695.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENSBTAT00000019143; ENSBTAP00000019143; ENSBTAG00000014395. [P57695-1]
GeneIDi281783.
KEGGibta:281783.

Organism-specific databases

CTDi2741.

Phylogenomic databases

eggNOGiKOG3643. Eukaryota.
ENOG410XPWH. LUCA.
GeneTreeiENSGT00760000118821.
HOGENOMiHOG000231336.
HOVERGENiHBG051707.
InParanoidiP57695.
KOiK05193.
OMAiFNFAYGM.
OrthoDBiEOG091G0805.
TreeFamiTF315453.

Enzyme and pathway databases

ReactomeiR-BTA-975298. Ligand-gated ion channel transport.

Family and domain databases

Gene3Di2.70.170.10. 1 hit.
InterProiIPR006028. GABAA/Glycine_rcpt.
IPR008127. Glycine_rcpt_A.
IPR008128. Glycine_rcpt_A1.
IPR006202. Neur_chan_lig-bd.
IPR006201. Neur_channel.
IPR006029. Neurotrans-gated_channel_TM.
IPR018000. Neurotransmitter_ion_chnl_CS.
[Graphical view]
PANTHERiPTHR18945. PTHR18945. 1 hit.
PfamiPF02931. Neur_chan_LBD. 1 hit.
PF02932. Neur_chan_memb. 1 hit.
[Graphical view]
PRINTSiPR00253. GABAARECEPTR.
PR01673. GLYRALPHA.
PR01674. GLYRALPHA1.
PR00252. NRIONCHANNEL.
SUPFAMiSSF63712. SSF63712. 1 hit.
SSF90112. SSF90112. 1 hit.
TIGRFAMsiTIGR00860. LIC. 1 hit.
PROSITEiPS00236. NEUROTR_ION_CHANNEL. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiGLRA1_BOVIN
AccessioniPrimary (citable) accession number: P57695
Secondary accession number(s): Q9GKE9, Q9GKF0
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 8, 2000
Last sequence update: December 8, 2000
Last modified: September 7, 2016
This is version 126 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Miscellaneous

The alpha subunit binds strychnine.1 Publication

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.