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Overview

Uniprot IDP16520
Protein NameGuanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-3
Gene NameGNB3
OrganismHomo sapiens

Kla Sites from experimental identification

Position Flanking peptide
89 WDSYTTNKVHAIPLR

Function

Guanine nucleotide-binding proteins (G proteins) are involved as a modulator or transducer in various transmembrane signaling systems. The beta and gamma chains are required for the GTPase activity, for replacement of GDP by GTP, and for G protein-effector interaction

Protein Sequence

10 MGEMEQLRQE 20 AEQLKKQIAD 30 ARKACADVTL 40 AELVSGLEVV 50 GRVQMRTRRT 60 LRGHLAKIYA 70 MHWATDSKLL 80 VSASQDGKLI 90 VWDSYTTNKV 100 HAIPLRSSWV 110 MTCAYAPSGN 120 FVACGGLDNM 130 CSIYNLKSRE 140 GNVKVSRELS 150 AHTGYLSCCR 160 FLDDNNIVTS 170 SGDTTCALWD 180 IETGQQKTVF 190 VGHTGDCMSL 200 AVSPDFNLFI 210 SGACDASAKL 220 WDVREGTCRQ 230 TFTGHESDIN 240 AICFFPNGEA 250 ICTGSDDASC 260 RLFDLRADQE 270 LICFSHESII 280 CGITSVAFSL 290 SGRLLFAGYD 300 DFNCNVWDSM 310 KSERVGILSG 320 HDNRVSCLGV 330 TADGMAVATG 340 SWDSFLKIWN

Gene Ontology

Classification GO ID Description
Cellular Component GO:0044297 cell body
Cellular Component GO:0005737 cytoplasm
Cellular Component GO:0005829 cytosol
Cellular Component GO:0030425 dendrite
Cellular Component GO:0070062 extracellular exosome
Cellular Component GO:0005834 heterotrimeric G-protein complex
Cellular Component GO:0005886 plasma membrane
Molecular Function GO:0003924 GTPase activity
Molecular Function GO:0051020 GTPase binding
Molecular Function GO:0030159 signaling receptor complex adaptor activity
Molecular Function GO:0030507 spectrin binding
Biological Process GO:0006884 cell volume homeostasis
Biological Process GO:0007186 G protein-coupled receptor signaling pathway
Biological Process GO:0008217 regulation of blood pressure
Biological Process GO:0090181 regulation of cholesterol metabolic process
Biological Process GO:0045598 regulation of fat cell differentiation
Biological Process GO:0010468 regulation of gene expression
Biological Process GO:0010906 regulation of glucose metabolic process
Biological Process GO:0032350 regulation of hormone metabolic process
Biological Process GO:1903725 regulation of phospholipid metabolic process
Biological Process GO:0090207 regulation of triglyceride metabolic process

Reference

[1] Shi CM, Wang QC, Li XL, Yang YH, Tang XY et al.. Global Profiling of Protein Lactylation in Human Hippocampi.. Proteomics Clin Appl 19(2):e202400061. 2025 Mar. PMID: 39610256.