atriopeptins
Oxford Dictionary of Biochemistry:
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atriopeptins
biologically active peptides isolated from mammalian cardiac atria. Atriopeptin I (I) has 21 amino acids, with the structure
SSCFGGRIDRIGAQSGLGCNS
3 — 19 disulfide link); atriopeptin II (II) is the same with additional Phe-Arg residues at the C terminus; atriopeptin III is the same as II but with an additional Tyr residue at the C terminus. I relaxes intestinal smooth muscle but not vascular smooth muscle, while II relaxes both. Compare natriuretic peptide.
| atrioactivase, atrial, atractyloside | |
| atrium, atrolysin B, atrolysin C |
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Oxford Dictionary of Biochemistry
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