a soluble enzyme mixture from the 37000 or 100000 g supernatant of disrupted cells of p. shermanii converts both 14 c-labelled ala and [ 14c ] uro'gen iii to cobyrinic acid , the simplest corrinoid material on the pathway to vitamin b12 and the coenzyme , in presence of nadph , co2+ , mg2+ , s-adenosyl-methionine and glutathione .
C1256766
corrinoid
C0042845
vitamin b12