[Pyr1]apelin-13 (human)

[Pyr1]apelin-13 peptide: Although apelin-36 is the most widely expressed APLN isoform, apelin-13 remains the more potent and abundant peptide in blood circulation. Notably, [Pyr1]apelin-13 (CAS: 217082-60-5) is the predominant isoform in human cardiac tissue, showcasing its physiological significance in regulating cardiovascular function.