methionine adenosyltransferase ( atp : l-methionine-s-adenosyl transferase , ec 2.5.1.6 ) , cystathionine beta-synthase f1l-serine hydro-lyase ( adding homocysteine ) , ec 4.2.1.22 ] and cystathionine gamma-lyase [ l-cystathionine cysteine-lyase ( deaminating ) , ec 4.4.1.1 ] activities were found only in the cytosol fraction of rat liver cells .
C1383501
cytosol
C0007634
cells