Kim K W, Sugawara F, Yoshida S, Murofushi N, Takahashi N, Curtis R W
Institute of Physical and Chemical Research (RIKEN), Saitama, Japan.
Biosci Biotechnol Biochem. 1993 May;57(5):787-91. doi: 10.1271/bbb.57.787.
Malformin B, produced by Aspergillus niger, was separated into six compounds by HPLC. Their structures were determined by amino acid analyses, and by mass spectral and two-dimensional NMR experiments to be cyclic pentapeptides structurally related to malformin A1. Both the NMR and MS/MS experiments suggest cyclo-D-cysteinyl-D-cysteinyl-L-amino acid-D-amino acid-L-amino acid as the essential structure of malformins.
由黑曲霉产生的麦芽菌素B通过高效液相色谱法被分离成六种化合物。通过氨基酸分析、质谱和二维核磁共振实验确定了它们的结构，结果表明它们是与麦芽菌素A1结构相关的环五肽。核磁共振和串联质谱实验均表明环-D-半胱氨酰-D-半胱氨酰-L-氨基酸-D-氨基酸-L-氨基酸是麦芽菌素的基本结构。
