Cheng, E H Cross-linking studies on Escherichia coli ribonucleic acid polymerase [proceedings]. [electronic resource] - Biochemical Society transactions 1978 - 617-9 p. digital Publication Type: Journal Article ISSN: 0300-5127 Standard No.: 10.1042/bst0060617 doi Subjects--Topical Terms: DNA-Directed RNA PolymerasesEscherichia coli--enzymologyMacromolecular SubstancesMaleimidesMolecular Weight