It is shown that the iso-1 and iso-2 cytochromes c synthesized by two strains of respiratory deficient strains of yeast (varrho(-)) possess one residue of epsilonN-trimethyllysine and do not differ in this respect from the iso-cytochromes produced by varrho(+) strains. This result excludes the possibility that the methylation reaction is linked to respiratory activity or to the varrho(+) factor.
Verdière
J
J
Centre de Génétique Moléculaire du C.N.R.S., 91, Gif-sur-Yvette, France
Lederer
F
F
Présence de la epsilonN-trimethyllysine dans l'iso-1 et l'iso-2 cytochromes c synthétisés par des souches de levure à déficience respiratoire (varrho(-)).