Structures of new cyclic peptides in young unshiu (Citrus unshiu Marcov.), orange (Citrus sinensis Osbeck.) and amanatsu (Citrus natsudaidai) peelings

Y Matsubara; T Yusa; A Sawabe; Y Iizuka; S Takekuma; Y Yoshida

Structures of new cyclic peptides in young unshiu (Citrus unshiu Marcov.), orange (Citrus sinensis Osbeck.) and amanatsu (Citrus natsudaidai) peelings

Agric Biol Chem. 1991 Dec;55(12):2923-9.

Authors

Y Matsubara¹, T Yusa, A Sawabe, Y Iizuka, S Takekuma, Y Yoshida

Affiliation

¹ Department of Applied Chemistry, Faculty of Science and Engineering, Kinki University, Higashi-Osaka, Japan.

PMID: 1368762

Abstract

Four cyclic peptides were isolated from young unshiu (unripe fruit), orange and amanatsu peelings, and their structures were established on the basis of FAB-MS (CID method) and 2D-NMR spectroscopic data, and by chemical evidence. They were each found to consist of seven or eight amino acids.

MeSH terms

Amino Acid Sequence
Citrus / chemistry*
Mass Spectrometry
Molecular Sequence Data
Peptides, Cyclic / chemistry
Peptides, Cyclic / isolation & purification*
Plant Proteins / chemistry
Plant Proteins / isolation & purification*

Substances

Peptides, Cyclic
Plant Proteins