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- Table of Contents
Facts about Guanine nucleotide-binding protein subunit alpha-13.
GNA13-dependent Rho signaling subsequently regulates transcription factor AP-1 (activating protein-1) (By similarity). Promotes tumor cell invasion and metastasis by sparking RhoA/ROCK signaling pathway (PubMed:16787920, PubMed:16705036, PubMed:27084452).
| Human | |
|---|---|
| Gene Name: | GNA13 |
| Uniprot: | Q14344 |
| Entrez: | 10672 |

| Belongs to: |
|---|
| G-alpha family |

G alpha-13; G13; G-protein subunit alpha-13; guanine nucleotide binding protein (G protein), alpha 13; guanine nucleotide-binding protein subunit alpha-13; MGC46138
Mass (kDA):
44.05 kDA

| Human | |
|---|---|
| Location: | 17q24.1 |
| Sequence: | 17; NC_000017.11 (65009289..65056740, complement) |
Expressed in testis, including in Leydig cells and in the seminiferous epithelium, in differentiating cells from the spermatogonia to mature spermatozoa stages and round spermatids (at protein level). Expressed in 99.2% of spermatozoa from healthy individuals, but only in 28.6% of macrocephalic spermatozoa from infertile patients (at protein level).
Cell membrane; Lipid-anchor. Melanosome. Cytoplasm. Nucleus. Identified by mass spectrometry in melanosome fractions from stage I to stage IV (PubMed:17081065). Detected in the cytoplasm of Leydig cells and in the seminiferous epithelium, including differentiating cells from the spermatogonia to mature spermatozoa stages (PubMed:18703424). In round spermatids, also present in the nuclei (PubMed:18703424).






PMID: 7791744 by Kabouridis P.S., et al. Expression of GTP-binding protein alpha subunits in human thymocytes.
PMID: 10026210 by Fukuhara S., et al. A novel PDZ domain containing guanine nucleotide exchange factor links heterotrimeric G proteins to Rho.