UniProtKB - P38407 (GNAT_XENLA)
Protein
Guanine nucleotide-binding protein G(t) subunit alpha
Gene
gnat
Organism
Xenopus laevis (African clawed frog)
Status
Functioni
Guanine nucleotide-binding proteins (G proteins) are involved as modulators or transducers in various transmembrane signaling systems. Transducin is an amplifier and one of the transducers of a visual impulse that performs the coupling between rhodopsin and cGMP-phosphodiesterase.
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Metal bindingi | 43 | MagnesiumBy similarity | 1 | |
Metal bindingi | 177 | MagnesiumBy similarity | 1 | |
Binding sitei | 322 | GTP; via amide nitrogenBy similarity | 1 |
Regions
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Nucleotide bindingi | 36 – 43 | GTPBy similarity | 8 | |
Nucleotide bindingi | 171 – 177 | GTPBy similarity | 7 | |
Nucleotide bindingi | 196 – 200 | GTPBy similarity | 5 | |
Nucleotide bindingi | 265 – 268 | GTPBy similarity | 4 |
GO - Molecular functioni
- G-protein beta/gamma-subunit complex binding Source: InterPro
- GTPase activity Source: InterPro
- GTP binding Source: UniProtKB-KW
- metal ion binding Source: UniProtKB-KW
GO - Biological processi
- adenylate cyclase-modulating G protein-coupled receptor signaling pathway Source: InterPro
- response to light stimulus Source: AgBase
- visual perception Source: UniProtKB-KW
Keywordsi
Molecular function | Transducer |
Biological process | Sensory transduction, Vision |
Ligand | GTP-binding, Magnesium, Metal-binding, Nucleotide-binding |
Names & Taxonomyi
Protein namesi | Recommended name: Guanine nucleotide-binding protein G(t) subunit alphaAlternative name(s): Transducin alpha chain |
Gene namesi | Name:gnat |
Organismi | Xenopus laevis (African clawed frog) |
Taxonomic identifieri | 8355 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Amphibia › Batrachia › Anura › Pipoidea › Pipidae › Xenopodinae › Xenopus › Xenopus |
Organism-specific databases
Xenbasei | XB-GENE-17343152, gnat1.L |
Subcellular locationi
Other locations
- membrane Source: AgBase
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Initiator methioninei | RemovedBy similarity | |||
ChainiPRO_0000203742 | 2 – 350 | Guanine nucleotide-binding protein G(t) subunit alphaAdd BLAST | 349 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Lipidationi | 2 | N-myristoyl glycineSequence analysis | 1 |
Keywords - PTMi
Lipoprotein, MyristateInteractioni
Subunit structurei
G proteins are composed of 3 units; alpha, beta and gamma. The alpha chain contains the guanine nucleotide binding site.
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 28 – 350 | G-alphaPROSITE-ProRule annotationAdd BLAST | 323 |
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 31 – 44 | G1 motifPROSITE-ProRule annotationAdd BLAST | 14 | |
Regioni | 169 – 177 | G2 motifPROSITE-ProRule annotation | 9 | |
Regioni | 192 – 201 | G3 motifPROSITE-ProRule annotation | 10 | |
Regioni | 261 – 268 | G4 motifPROSITE-ProRule annotation | 8 | |
Regioni | 320 – 325 | G5 motifPROSITE-ProRule annotation | 6 |
Sequence similaritiesi
Phylogenomic databases
OrthoDBi | 754573at2759 |
Family and domain databases
CDDi | cd00066, G-alpha, 1 hit |
Gene3Di | 1.10.400.10, 1 hit |
InterProi | View protein in InterPro IPR001408, Gprotein_alpha_I IPR001019, Gprotein_alpha_su IPR011025, GproteinA_insert IPR027417, P-loop_NTPase |
PANTHERi | PTHR10218, PTHR10218, 1 hit |
Pfami | View protein in Pfam PF00503, G-alpha, 1 hit |
PRINTSi | PR00318, GPROTEINA PR00441, GPROTEINAI |
SMARTi | View protein in SMART SM00275, G_alpha, 1 hit |
SUPFAMi | SSF47895, SSF47895, 1 hit SSF52540, SSF52540, 1 hit |
PROSITEi | View protein in PROSITE PS51882, G_ALPHA, 1 hit |
i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
P38407-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MGAGASAEEK HSRELEKKLK EDADKDARTV KLLLLGAGES GKSTIVKQMK
60 70 80 90 100
IIHQDGYSVE ECLEFIAIIY GNTLQSMIAI VKAMNTLNIQ FGDPARQDDA
110 120 130 140 150
RKLMHLADTI DEGSMPKEMS DIIGRLWKDT GIQACFDRAS EYQLNDSAGY
160 170 180 190 200
YLNDLDRLVI PGYVPTEQDV LRSRVKTTGI IETQFGLKDL NFRMFDVGGQ
210 220 230 240 250
RSERKKWIHC FEGVTCIIFI AALSAYDMVL VEDDEVNRMH ESLHLFNSIC
260 270 280 290 300
NHRYFATTSI VLFLNKKDVF TEKIKKAHLS ICFPDYDGPN TYEDAGNYIK
310 320 330 340 350
TQFLELNMRR DVKEIYSHMT CATDTENVKF VFDAVTDIII KENLKDCGLF
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | L07771 mRNA Translation: AAA88693.1 BC111509 mRNA Translation: AAI11510.1 |
RefSeqi | NP_001084030.1, NM_001090561.1 |
Genome annotation databases
GeneIDi | 399262 |
KEGGi | xla:399262 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | L07771 mRNA Translation: AAA88693.1 BC111509 mRNA Translation: AAI11510.1 |
RefSeqi | NP_001084030.1, NM_001090561.1 |
3D structure databases
SMRi | P38407 |
ModBasei | Search... |
Genome annotation databases
GeneIDi | 399262 |
KEGGi | xla:399262 |
Organism-specific databases
CTDi | 399262 |
Xenbasei | XB-GENE-17343152, gnat1.L |
Phylogenomic databases
OrthoDBi | 754573at2759 |
Family and domain databases
CDDi | cd00066, G-alpha, 1 hit |
Gene3Di | 1.10.400.10, 1 hit |
InterProi | View protein in InterPro IPR001408, Gprotein_alpha_I IPR001019, Gprotein_alpha_su IPR011025, GproteinA_insert IPR027417, P-loop_NTPase |
PANTHERi | PTHR10218, PTHR10218, 1 hit |
Pfami | View protein in Pfam PF00503, G-alpha, 1 hit |
PRINTSi | PR00318, GPROTEINA PR00441, GPROTEINAI |
SMARTi | View protein in SMART SM00275, G_alpha, 1 hit |
SUPFAMi | SSF47895, SSF47895, 1 hit SSF52540, SSF52540, 1 hit |
PROSITEi | View protein in PROSITE PS51882, G_ALPHA, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | GNAT_XENLA | |
Accessioni | P38407Primary (citable) accession number: P38407 Secondary accession number(s): Q2T9I4 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | October 1, 1994 |
Last sequence update: | January 23, 2007 | |
Last modified: | December 2, 2020 | |
This is version 108 of the entry and version 2 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Chordata Protein Annotation Program |