- an amino acid, C7H14O4N2S, that is an intermediate in the transfer of sulfur from methionine to cysteine.
Origin of cystathionine
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- An intermediate in the conversion of methionine to cysteine.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.