Fusion protein amino acids 1548-1582 (LVMVLKRGAILEFDKPEKLLSQKDSVFASFVRADK, cytoplasmic C-terminus) of rat SUR1 (also known as Sulfonylurea receptor 1, SUR, HRINS, ATP binding cassette transporter subfamily C member 8 and Abcc8, accession number Q09429) Mouse: 100% identity (35/35 amino acids identical) Human: 94% identity (33/35 amino acids identical) Similar % identity with other isoforms >70% identity with SUR2B