MAS1

G protein-coupled receptor that plays key roles in the renin-angiotensin system (RAS) specifically in the protective, counter-regulatory arm of the RAS. Receptor mainly stimulated by angiotensin 1-7, which is a bioactive metabolite of the angiotensin produced by ACE2. Activation promotes nitric oxide via PI3K/Akt-eNOS pathway. Modulates also the MAPK, ERK1/2, and NF-kappa-B signaling. Positive regulation of AGTR1 levels occurs through activation of the G proteins GNA11 and GNAQ, and stimulation of the protein kinase C signaling cascade. The antagonist effect on AGTR1 function is probably due to AGTR1 being physically altered by MAS1. Acts as functional receptor for CXCL17 and induces chemotactic movement..

Function from UniProtKB (P04201), read 2026-09-23. CC BY 4.0.