Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https://
means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
G-protein-coupled receptors (GPCRs) are the largest and most diverse family of transmembrane receptors. A pylogenetic analysis shows the overall relationship of 277 human GPCRs. An emphasis on...
data.gov
An official website of the GSA's Technology Transformation Services