UniProtKB - Q8BUV3 (GEPH_MOUSE)
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Protein
Gephyrin
Gene
Gphn
Organism
Mus musculus (Mouse)
Status
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 similarityView all proteins of this organism that are known to be involved in the pathway molybdopterin biosynthesis and in Cofactor biosynthesis.
GO - Molecular functioni
- ATP binding Source: UniProtKB-KW
- cytoskeletal protein binding Source: MGI
- metal ion binding Source: UniProtKB-KW
- molybdopterin adenylyltransferase activity Source: MGI
- molybdopterin cofactor binding Source: MGI
- molybdopterin molybdotransferase activity Source: MGI
- nitrate reductase activity Source: MGI
- structural constituent of postsynaptic specialization Source: SynGO
GO - Biological processi
- establishment of synaptic specificity at neuromuscular junction Source: MGI
- gamma-aminobutyric acid receptor clustering Source: MGI
- glycine receptor clustering Source: MGI
- maintenance of postsynaptic specialization structure Source: SynGO
- molybdenum incorporation into molybdenum-molybdopterin complex Source: GO_Central
- molybdopterin cofactor biosynthetic process Source: UniProtKB
- Mo-molybdopterin cofactor biosynthetic process Source: MGI
- postsynaptic neurotransmitter receptor diffusion trapping Source: SynGO
- response to metal ion Source: MGI
Keywordsi
| Molecular function | Transferase |
| Biological process | Molybdenum cofactor biosynthesis |
| Ligand | ATP-binding, Magnesium, Metal-binding, Molybdenum, Nucleotide-binding |
Enzyme and pathway databases
| Reactomei | R-MMU-947581. Molybdenum cofactor biosynthesis. |
| UniPathwayi | UPA00344. |
Names & Taxonomyi
| Protein namesi | Recommended name: GephyrinIncluding the following 2 domains: |
| Gene namesi | Name:Gphn |
| Organismi | Mus musculus (Mouse) |
| Taxonomic identifieri | 10090 [NCBI] |
| Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Myomorpha › Muroidea › Muridae › Murinae › Mus › Mus |
| Proteomesi |
|
Organism-specific databases
| MGIi | MGI:109602. Gphn. |
Subcellular locationi
- Cell junction › synapse By similarity
- Cell junction › synapse › postsynaptic cell membrane By similarity; Peripheral membrane protein By similarity; Cytoplasmic side By similarity
- Cytoplasm › cytoskeleton By similarity
- Cell membrane By similarity; Peripheral membrane protein By similarity; Cytoplasmic side By similarity
- Cell projection › dendrite 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: MGI
- 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
- postsynaptic specialization Source: SynGO
Keywords - Cellular componenti
Cell junction, Cell membrane, Cell projection, Cytoplasm, Cytoskeleton, Membrane, Postsynaptic cell membrane, SynapsePTM / Processingi
Molecule processing
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| ChainiPRO_0000269039 | 1 – 769 | GephyrinAdd BLAST | 769 |
Amino acid modifications
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Modified residuei | 188 | PhosphoserineCombined sources | 1 | |
| Modified residuei | 194 | PhosphoserineCombined sources | 1 | |
| Modified residuei | 198 | PhosphothreonineBy similarity | 1 | |
| Modified residuei | 200 | PhosphoserineCombined sources | 1 | |
| Modified residuei | 262 | PhosphoserineCombined sources | 1 | |
| Modified residuei | 265 | PhosphothreonineCombined sources | 1 | |
| Modified residuei | 266 | PhosphothreonineCombined sources | 1 | |
| Modified residuei | 268 | PhosphoserineCombined sources | 1 | |
| Modified residuei | 270 | PhosphoserineCombined sources | 1 | |
| Modified residuei | 338 | PhosphoserineCombined sources | 1 |
Keywords - PTMi
PhosphoproteinProteomic databases
| EPDi | Q8BUV3. |
| MaxQBi | Q8BUV3. |
| PeptideAtlasi | Q8BUV3. |
| PRIDEi | Q8BUV3. |
PTM databases
| iPTMneti | Q8BUV3. |
| PhosphoSitePlusi | Q8BUV3. |
| SwissPalmi | Q8BUV3. |
Expressioni
Gene expression databases
| Bgeei | ENSMUSG00000047454. |
| CleanExi | MM_GPHN. |
| ExpressionAtlasi | Q8BUV3. baseline and differential. |
| Genevisiblei | Q8BUV3. 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
GO - Molecular functioni
- cytoskeletal protein binding Source: MGI
Protein-protein interaction databases
| BioGridi | 234521. 1 interactor. |
| IntActi | Q8BUV3. 6 interactors. |
| MINTi | MINT-1869852. |
Structurei
3D structure databases
| ProteinModelPortali | Q8BUV3. |
| SMRi | Q8BUV3. |
| ModBasei | Search... |
| MobiDBi | Search... |
Family & Domainsi
Region
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Regioni | 14 – 153 | MPT Mo-transferaseAdd BLAST | 140 | |
| Regioni | 140 – 349 | Interaction with GABARAPBy similarityAdd BLAST | 210 | |
| Regioni | 327 – 769 | MPT adenylyltransferaseAdd BLAST | 443 |
Compositional bias
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Compositional biasi | 187 – 192 | Poly-Pro | 6 | |
| Compositional biasi | 213 – 218 | Glu-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
| GeneTreei | ENSGT00390000016577. |
| HOGENOMi | HOG000280651. |
| HOVERGENi | HBG005828. |
| InParanoidi | Q8BUV3. |
| KOi | K15376. |
Family and domain databases
| CDDi | cd00886. MogA_MoaB. 1 hit. |
| Gene3Di | 2.40.340.10. 1 hit. 3.40.980.10. 2 hits. |
| InterProi | View protein in InterPro IPR001453. MoaB/Mog_dom. IPR008284. MoCF_biosynth_CS. IPR005111. MoeA_C_domain_IV. IPR005110. MoeA_linker/N. |
| Pfami | View protein in Pfam PF00994. MoCF_biosynth. 2 hits. PF03454. MoeA_C. 1 hit. PF03453. MoeA_N. 1 hit. |
| SMARTi | View protein in SMART SM00852. MoCF_biosynth. 2 hits. |
| SUPFAMi | SSF53218. SSF53218. 2 hits. SSF63867. SSF63867. 1 hit. SSF63882. SSF63882. 1 hit. |
| TIGRFAMsi | TIGR00177. molyb_syn. 2 hits. |
| PROSITEi | View protein in PROSITE PS01078. MOCF_BIOSYNTHESIS_1. 1 hit. PS01079. MOCF_BIOSYNTHESIS_2. 1 hit. |
Sequencei
Sequence statusi: Complete.
Q8BUV3-1 [UniParc]FASTAAdd to basket
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
Experimental Info
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Sequence conflicti | 262 | S → T in BAC38476 (PubMed:16141072).Curated | 1 | |
| Sequence conflicti | 463 | T → S in BAC38476 (PubMed:16141072).Curated | 1 |
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. |
| CCDSi | CCDS26000.1. |
| RefSeqi | NP_766540.2. NM_172952.3. |
| UniGenei | Mm.341742. Mm.363753. Mm.453131. |
Genome annotation databases
| Ensembli | ENSMUST00000052472; ENSMUSP00000054064; ENSMUSG00000047454. |
| GeneIDi | 268566. |
| KEGGi | mmu:268566. |
| UCSCi | uc007nzc.2. mouse. |
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. |
Entry informationi
| Entry namei | GEPH_MOUSE | |
| Accessioni | Q8BUV3Primary (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: | June 7, 2017 | |
| This is version 121 of the entry and version 2 of the sequence. See complete history. | ||
| Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
| Annotation program | Chordata Protein Annotation Program | |
Miscellaneousi
Keywords - Technical termi
Complete proteome, Multifunctional enzyme, Reference proteomeDocuments
- MGD cross-references
Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot - PATHWAY comments
Index of metabolic and biosynthesis pathways - SIMILARITY comments
Index of protein domains and families
