PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 32184956-3 2020 Herein, 12 single nucleotide polymorphisms (SNPs) deposited into the Variation Viewer database within the His-Phe-Arg-Trp sequences of ACTH/alpha-MSH, beta-MSH, and gamma-MSH were substituted into tetrapeptide scaffolds to examine the in vitro signaling effects of these polymorphisms at the cloned melanocortin receptors. Arginine 114-117 proopiomelanocortin Homo sapiens 135-139