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Protein

Gephyrin

Gene

Gphn

Organism
Mus musculus (Mouse)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

Microtubule-associated protein involved in membrane protein-cytoskeleton interactions. It is thought to anchor the inhibitory glycine receptor (GLYR) to subsynaptic microtubules. Catalyzes two steps in the biosynthesis of the molybdenum cofactor. In the first step, molybdopterin is adenylated. Subsequently, molybdate is inserted into adenylated molybdopterin and AMP is released.By similarity

Catalytic activityi

ATP + molybdopterin = diphosphate + adenylyl-molybdopterin.By similarity
Adenylyl-molybdopterin + molybdate = molybdenum cofactor + AMP.By similarity

Cofactori

Mg2+By similarity

Enzyme regulationi

Inhibited by copper and tungsten.By similarity

Pathwayi: molybdopterin biosynthesis

This protein is involved in the pathway molybdopterin biosynthesis, which is part of Cofactor biosynthesis.By similarity
View all proteins of this organism that are known to be involved in the pathway molybdopterin biosynthesis and in Cofactor biosynthesis.

GO - Molecular functioni

GO - Biological processi

  • establishment of synaptic specificity at neuromuscular junction Source: MGI
  • gamma-aminobutyric acid receptor clustering Source: UniProtKB
  • glycine receptor clustering Source: MGI
  • molybdenum incorporation into molybdenum-molybdopterin complex Source: GO_Central
  • molybdopterin cofactor biosynthetic process Source: UniProtKB
  • Mo-molybdopterin cofactor biosynthetic process Source: MGI
Complete GO annotation...

Keywords - Molecular functioni

Transferase

Keywords - Biological processi

Molybdenum cofactor biosynthesis

Keywords - Ligandi

ATP-binding, Magnesium, Metal-binding, Molybdenum, Nucleotide-binding

Enzyme and pathway databases

ReactomeiR-MMU-947581. Molybdenum cofactor biosynthesis.
UniPathwayiUPA00344.

Names & Taxonomyi

Protein namesi
Recommended name:
Gephyrin
Including the following 2 domains:
Molybdopterin adenylyltransferase (EC:2.7.7.75By similarity)
Short name:
MPT adenylyltransferase
Alternative name(s):
Domain G
Molybdopterin molybdenumtransferase (EC:2.10.1.1By similarity)
Short name:
MPT Mo-transferase
Alternative name(s):
Domain E
Gene namesi
Name:Gphn
OrganismiMus musculus (Mouse)
Taxonomic identifieri10090 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaSciurognathiMuroideaMuridaeMurinaeMusMus
Proteomesi
  • UP000000589 Componenti: Chromosome 12

Organism-specific databases

MGIiMGI:109602. Gphn.

Subcellular locationi

  • Cell junctionsynapse By similarity
  • Cell junctionsynapsepostsynaptic cell membrane By similarity; Peripheral membrane protein By similarity; Cytoplasmic side By similarity
  • Cytoplasmcytoskeleton By similarity
  • Cell membrane By similarity; Peripheral membrane protein By similarity; Cytoplasmic side By similarity
  • Cell projectiondendrite By similarity

  • Note: Cytoplasmic face of glycinergic postsynaptic membranes.By similarity

GO - Cellular componenti

  • cell junction Source: UniProtKB-KW
  • cytoplasm Source: GO_Central
  • cytoskeleton Source: UniProtKB-SubCell
  • dendrite Source: UniProtKB
  • extrinsic component of plasma membrane Source: MGI
  • inhibitory synapse Source: MGI
  • intracellular Source: MGI
  • neuronal cell body Source: MGI
  • postsynapse Source: MGI
  • postsynaptic membrane Source: UniProtKB
Complete GO annotation...

Keywords - Cellular componenti

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

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002690391 – 769GephyrinAdd BLAST769

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei188PhosphoserineCombined sources1
Modified residuei194PhosphoserineCombined sources1
Modified residuei198PhosphothreonineBy similarity1
Modified residuei200PhosphoserineCombined sources1
Modified residuei262PhosphoserineCombined sources1
Modified residuei265PhosphothreonineCombined sources1
Modified residuei266PhosphothreonineCombined sources1
Modified residuei268PhosphoserineCombined sources1
Modified residuei270PhosphoserineCombined sources1
Modified residuei338PhosphoserineCombined sources1

Keywords - PTMi

Phosphoprotein

Proteomic databases

EPDiQ8BUV3.
MaxQBiQ8BUV3.
PeptideAtlasiQ8BUV3.
PRIDEiQ8BUV3.

PTM databases

iPTMnetiQ8BUV3.
PhosphoSitePlusiQ8BUV3.
SwissPalmiQ8BUV3.

Expressioni

Gene expression databases

BgeeiENSMUSG00000047454.
CleanExiMM_GPHN.
ExpressionAtlasiQ8BUV3. baseline and differential.
GenevisibleiQ8BUV3. MM.

Interactioni

Subunit structurei

Homotrimer, homodimer and homooligomer (By similarity). Interacts with SRGAP2 (via SH3 domain) (PubMed:22126966). Interacts with GLRB (By similarity). Interacts with GABARAP (By similarity). Interacts with GABRA3 (By similarity). GABRA3 and GLRB occupy overlapping binding sites (By similarity).By similarity1 Publication

Binary interactionsi

WithEntry#Exp.IntActNotes
GlrbP481684EBI-771218,EBI-7069198
Pin1Q9QUR76EBI-771218,EBI-2432975

GO - Molecular functioni

  • cytoskeletal protein binding Source: MGI

Protein-protein interaction databases

BioGridi234521. 1 interactor.
IntActiQ8BUV3. 6 interactors.
MINTiMINT-1869852.

Structurei

3D structure databases

ProteinModelPortaliQ8BUV3.
SMRiQ8BUV3.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni14 – 153MPT Mo-transferaseAdd BLAST140
Regioni140 – 349Interaction with GABARAPBy similarityAdd BLAST210
Regioni327 – 769MPT adenylyltransferaseAdd BLAST443

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Compositional biasi187 – 192Poly-Pro6
Compositional biasi213 – 218Glu-rich (acidic)6

Sequence similaritiesi

In the N-terminal section; belongs to the MoaB/Mog family.Curated
In the C-terminal section; belongs to the MoeA family.Curated

Phylogenomic databases

GeneTreeiENSGT00390000016577.
HOGENOMiHOG000280651.
HOVERGENiHBG005828.
InParanoidiQ8BUV3.
KOiK15376.

Family and domain databases

CDDicd00886. MogA_MoaB. 1 hit.
Gene3Di2.40.340.10. 1 hit.
3.40.980.10. 2 hits.
InterProiIPR001453. MoaB/Mog_dom.
IPR008284. MoCF_biosynth_CS.
IPR005111. MoeA_C_domain_IV.
IPR005110. MoeA_linker/N.
[Graphical view]
PfamiPF00994. MoCF_biosynth. 2 hits.
PF03454. MoeA_C. 1 hit.
PF03453. MoeA_N. 1 hit.
[Graphical view]
SMARTiSM00852. MoCF_biosynth. 2 hits.
[Graphical view]
SUPFAMiSSF53218. SSF53218. 2 hits.
SSF63867. SSF63867. 1 hit.
SSF63882. SSF63882. 1 hit.
TIGRFAMsiTIGR00177. molyb_syn. 2 hits.
PROSITEiPS01078. MOCF_BIOSYNTHESIS_1. 1 hit.
PS01079. MOCF_BIOSYNTHESIS_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q8BUV3-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MATEGMILTN HDHQIRVGVL TVSDSCFRNL AEDRSGINLK DLVQDPSLLG
60 70 80 90 100
GTISAYKIVP DEIEEIKETL IDWCDEKELN LILTTGGTGF APRDVTPEAT
110 120 130 140 150
KEVIEREAPG MALAMLMGSL NVTPLGMLSR PVCGIRGKTL IINLPGSKKG
160 170 180 190 200
SQECFQFILP ALPHAIDLLR DAIVKVKEVH DELEDLPSPP PPLSPPPTTS
210 220 230 240 250
PHKQTEDKGV QCEEEEEEKK DSGVASTEDS SSSHITAAAL AAKIPDSIIS
260 270 280 290 300
RGVQVLPRDT ASLSTTPSES PRAQATSRLS TASCPTPKQI RRPDESKGVA
310 320 330 340 350
SRVGSLKARL PSCSSTYSVS EVQSRCSSKE NILRASHSAV DITKVARRHR
360 370 380 390 400
MSPFPLTSMD KAFITVLEMT PVLGTEIINY RDGMGRVLAQ DVYAKDNLPP
410 420 430 440 450
FPASVKDGYA VRAADGPGDR FIIGESQAGE QPTQTVMPGQ VMRVTTGAPI
460 470 480 490 500
PCGADAVVQV EDTELIRESD DGTEELEVRI LVQARPGQDI RPIGHDIKRG
510 520 530 540 550
ECVLAKGTHM GPSEIGLLAT VGVTEVEVNK FPVVAVMSTG NELLNPEDDL
560 570 580 590 600
LPGKIRDSNR STLLATIQEH GYPTINLGIV GDNPDDLLNA LNEGISRADV
610 620 630 640 650
IITSGGVSMG EKDYLKQVLD IDLHAQIHFG RVFMKPGLPT TFATLDIDGV
660 670 680 690 700
RKIIFALPGN PVSAVVTCNL FVVPALRKMQ GILDPRPTII KARLSCDVKL
710 720 730 740 750
DPRPEYHRCI LTWHHQEPLP WAQSTGNQMS SRLMSMRSAN GLLMLPPKTE
760
QYVELHKGEV VDVMVIGRL
Length:769
Mass (Da):83,282
Last modified:July 27, 2011 - v2
Checksum:iD0EF325CC3CF87E9
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti262S → T in BAC38476 (PubMed:16141072).Curated1
Sequence conflicti463T → S in BAC38476 (PubMed:16141072).Curated1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AK082353 mRNA. Translation: BAC38476.1.
AC124346 Genomic DNA. No translation available.
AC124572 Genomic DNA. No translation available.
AC125057 Genomic DNA. No translation available.
AC132097 Genomic DNA. No translation available.
AC148324 Genomic DNA. No translation available.
CCDSiCCDS26000.1.
RefSeqiNP_766540.2. NM_172952.3.
UniGeneiMm.341742.
Mm.363753.
Mm.453131.

Genome annotation databases

EnsembliENSMUST00000052472; ENSMUSP00000054064; ENSMUSG00000047454.
GeneIDi268566.
KEGGimmu:268566.
UCSCiuc007nzc.2. mouse.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AK082353 mRNA. Translation: BAC38476.1.
AC124346 Genomic DNA. No translation available.
AC124572 Genomic DNA. No translation available.
AC125057 Genomic DNA. No translation available.
AC132097 Genomic DNA. No translation available.
AC148324 Genomic DNA. No translation available.
CCDSiCCDS26000.1.
RefSeqiNP_766540.2. NM_172952.3.
UniGeneiMm.341742.
Mm.363753.
Mm.453131.

3D structure databases

ProteinModelPortaliQ8BUV3.
SMRiQ8BUV3.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi234521. 1 interactor.
IntActiQ8BUV3. 6 interactors.
MINTiMINT-1869852.

PTM databases

iPTMnetiQ8BUV3.
PhosphoSitePlusiQ8BUV3.
SwissPalmiQ8BUV3.

Proteomic databases

EPDiQ8BUV3.
MaxQBiQ8BUV3.
PeptideAtlasiQ8BUV3.
PRIDEiQ8BUV3.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENSMUST00000052472; ENSMUSP00000054064; ENSMUSG00000047454.
GeneIDi268566.
KEGGimmu:268566.
UCSCiuc007nzc.2. mouse.

Organism-specific databases

CTDi10243.
MGIiMGI:109602. Gphn.

Phylogenomic databases

GeneTreeiENSGT00390000016577.
HOGENOMiHOG000280651.
HOVERGENiHBG005828.
InParanoidiQ8BUV3.
KOiK15376.

Enzyme and pathway databases

UniPathwayiUPA00344.
ReactomeiR-MMU-947581. Molybdenum cofactor biosynthesis.

Miscellaneous databases

ChiTaRSiGphn. mouse.
PROiQ8BUV3.
SOURCEiSearch...

Gene expression databases

BgeeiENSMUSG00000047454.
CleanExiMM_GPHN.
ExpressionAtlasiQ8BUV3. baseline and differential.
GenevisibleiQ8BUV3. MM.

Family and domain databases

CDDicd00886. MogA_MoaB. 1 hit.
Gene3Di2.40.340.10. 1 hit.
3.40.980.10. 2 hits.
InterProiIPR001453. MoaB/Mog_dom.
IPR008284. MoCF_biosynth_CS.
IPR005111. MoeA_C_domain_IV.
IPR005110. MoeA_linker/N.
[Graphical view]
PfamiPF00994. MoCF_biosynth. 2 hits.
PF03454. MoeA_C. 1 hit.
PF03453. MoeA_N. 1 hit.
[Graphical view]
SMARTiSM00852. MoCF_biosynth. 2 hits.
[Graphical view]
SUPFAMiSSF53218. SSF53218. 2 hits.
SSF63867. SSF63867. 1 hit.
SSF63882. SSF63882. 1 hit.
TIGRFAMsiTIGR00177. molyb_syn. 2 hits.
PROSITEiPS01078. MOCF_BIOSYNTHESIS_1. 1 hit.
PS01079. MOCF_BIOSYNTHESIS_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiGEPH_MOUSE
AccessioniPrimary (citable) accession number: Q8BUV3
Secondary accession number(s): E9QKJ1
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 12, 2006
Last sequence update: July 27, 2011
Last modified: November 30, 2016
This is version 118 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Multifunctional enzyme, Reference proteome

Documents

  1. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
  2. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  3. 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.