| Post Translational Modifications | Palmitoylation is critical for proper membrane localization and signaling. Phosphorylation on Thr-203 by PKA destabilizes the heterotrimer of alpha, beta and gamma, and inhibits Rho activation. |
| Function | Guanine nucleotide-binding proteins (G proteins) are involved as modulators or transducers in various transmembrane signaling systems. Activates effector molecule RhoA by binding and activating RhoGEFs (ARHGEF1/p115RhoGEF, ARHGEF11/PDZ-RhoGEF and ARHGEF12/LARG). GNA13-dependent Rho signaling subsequently regulates transcription factor AP-1 (activating protein-1). Promotes tumor cell invasion and metastasis by activating RhoA/ROCK signaling pathway. Inhibits CDH1-mediated cell adhesion in a process independent from Rho activation. In lymphoid follicles, transmits P2RY8- and S1PR2-dependent signals that lead to inhibition of germinal center (GC) B cell growth and migration outside the GC niche. |
| Protein Name | Guanine Nucleotide-Binding Protein Subunit Alpha-13G Alpha-13G-Protein Subunit Alpha-13 |
| Database Links | Reactome: R-HSA-193648Reactome: R-HSA-416482Reactome: R-HSA-428930Reactome: R-HSA-456926Reactome: R-HSA-9013148Reactome: R-HSA-9013149 |
| Cellular Localisation | Cell MembraneLipid-AnchorMelanosomeCytoplasmNucleusIdentified By Mass Spectrometry In Melanosome Fractions From Stage I To Stage IvDetected In The Cytoplasm Of Leydig Cells And In The Seminiferous EpitheliumIncluding Differentiating Cells From The Spermatogonia To Mature Spermatozoa StagesIn Round SpermatidsAlso Present In The Nuclei |
| Alternative Protein Names | Guanine Nucleotide-Binding Protein Subunit Alpha-13 proteinG Alpha-13 proteinG-Protein Subunit Alpha-13 proteinGNA13 protein |
Information sourced from Uniprot.org
