title: Occurrence of a novel high molecular weight activator of delta-aminolevulinate synthetase in Rhodopseudomonas spheroides.
mesh_terms: D000624:5-Aminolevulinate Synthetase / Q000378:metabolism*; D001426:Bacterial Proteins / Q000302:isolation & purification / Q000494:pharmacology*; D003542:Cystathionine gamma-Lyase / Q000378:metabolism; D003553:Cystine / Q000494:pharmacology; D004789:Enzyme Activation; D008970:Molecular Weight; D012242:Rhodobacter sphaeroides / Q000201:enzymology*
chemical_list: D001426:Bacterial Proteins; D003553:Cystine; D000624:5-Aminolevulinate Synthetase; D003542:Cystathionine gamma-Lyase