Table 1.

Amino acid sequences of apelin peptides.

Peptide	Amino Acid Sequences
Preproapelin	MNLRLCVQALLLLWLSLTAVCGGSLMPLPDGNGLEDGNVRHLVQPRGSRNGPGPWQGGRRKFRRQRPRLSHKGPMPF
Apelin-55	GSLMPLPDGNGLEDGNVRHLVQPRGSRNGPGPWQGGRRKFRRQRPRLSHKGPMPF
Apelin-36	LVQPRGSRNGPGPWQGGRRKFRRQRPRLSHKGPMPF
Apelin-17	KFRRQRPRLSHKGPMPF
Apelin-16	FRRQRPRLSHKGPMPF
Apelin-13	QRPRLSHKGPMPF
Pyr-apelin-13	Pyr-RPRLSHKGPMPF
Apelin-12	RPRLSHKGPMPF

Amino acid notation of apelin peptide isoforms is denoted using standard single letter amino acid codes. Pyr is pyroglutamate.