Comparisons
Orexin A vs Orexin B: One Precursor, Two Reagents
Orexin A has two disulfide bridges and engages both receptors; orexin B has none and prefers OX2R. Why that makes them different reagents.
Orexin A
Peptide Profiles
What Is Orexin A? Structure, Receptors and Literature
Orexin A is a 33-residue peptide with two disulfide bridges, acting at OX1R and OX2R. Its discovery, receptor pharmacology and analytical literature.