Recombinant Human Synembryn-A (RIC8A)

Uniprot Id

Q9NPQ8

Target Species

Human

Target Name

RIC8A

Target Full Name

Chaperone Ric-8A

Target Function

Guanine nucleotide exchange factor (GEF), which can activate some, but not all, G-alpha proteins. Able to activate GNAI1, GNAO1 and GNAQ, but not GNAS by exchanging bound GDP for free GTP. Involved in regulation of microtubule pulling forces during mitotic movement of chromosomes by stimulating G(i)-alpha protein, possibly leading to release G(i)-alpha-GTP and NuMA proteins from the NuMA-GPSM2-G(i)-alpha-GDP complex. Also acts as an activator for G(q)-alpha (GNAQ) protein by enhancing the G(q)-coupled receptor-mediated ERK activation.

Target Subcellular Location

Cytoplasm. Cell membrane.

Target Protein Families

Synembryn family

Target Synonyms

MGC104517; MGC131931; MGC148073; MGC148074; Protein Ric-8A; resistance to inhibitors of cholinesterase 8 homolog A (C. elegans); RIC8; RIC8A; RIC8A_HUMAN; Synembryn-A

Target Background

Predicted to enable G-protein alpha-subunit binding activity; GTPase activator activity; and guanyl-nucleotide exchange factor activity. Predicted to be involved in G protein-coupled receptor signaling pathway. Predicted to act upstream of or within several processes, including basement membrane organization; gastrulation; and visual learning. Predicted to be located in membrane. Predicted to be active in cytoplasm and plasma membrane.