The origin of the imidazole ring of histidine in Escherichia coli.
D004926:Escherichia coli / Q000378:metabolism*; D006639:Histidine / Q000378:metabolism*; D007093:Imidazoles / Q000378:metabolism*
D007093:Imidazoles; D006639:Histidine; C029899:imidazole
ESCHERICHIA COLI/metabolism; HISTIDINE/metabolism; IMIDAZOLES/metabolism