NONPROTEIN AMINO-ACIDS FROM SEEDS OF CYCAS-CIRCINALIS AND PHASEOLUS-VULGARIS

Authors
LI CJ BROWNSON DM MABRY TJ PERERA C BELL EA
Citation
Cj. Li et al., NONPROTEIN AMINO-ACIDS FROM SEEDS OF CYCAS-CIRCINALIS AND PHASEOLUS-VULGARIS, Phytochemistry, 42(2), 1996, pp. 443-445
Citations number
13
Categorie Soggetti
Plant Sciences
Journal title
Phytochemistry → ACNP
ISSN journal
00319422
Volume
42
Issue
2
Year of publication
1996
Pages
443 - 445
Database
ISI
SICI code
0031-9422(1996)42:2<443:NAFSOC>2.0.ZU;2-E
Abstract
Our chemical studies on Cycas circinalis seeds from Guam has provided two new nonprotein amino acids, N-(3'-one-5'-methyl)-hexylalanine and leucine betaine. N-methylisoleucine, previously reported as a componen t of naturally occurring peptides, has been isolated as a free amino a cid from the seeds of Phaseolus vulgaris (pinto bean), together with S -methylcysteine, pipecolic acid and a dipeptide, gamma-glutamyl-leucin e.