Isolation and Identification of ?-(?-Aminobutyryl)-Hypusine

Abstract
A new dipeptide, α‐(‐γ‐aminobutyryl)‐hypusine, was identified in bovine brain. This compound was isolated from trichloroacetic acid‐soluble fraction of bovine brain with five steps of ion‐exchange chromatography. Its structure was postulated by routine chemical analyses and determined by synthesis. The amount of the compound isolated from 1.2 kg of bovine brain was 870 nmol.

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