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[]. M Jemal, et al. Enantiomeric purity determination of L-proline benzyl ester by chiral column gas chromatography. J Chromatogr. 987 Apr 7:92:442-6.
[2]. Yukihiro Yamamoto, et al. Prolyl aminopeptidase from Streptomyces thermoluteus subsp. fuscus strain NBRC4270 and synthesis of proline-containing peptides by its S44C variant. Appl Environ Microbiol. 200 Sep;76(8):680-5.
H02-H5-H9-H5
P26-P264-P270-P27-P280-P02+P52-P04+P40-P05+P5+P8-P0-P62+P64-P40+P2-P405-P50