Geiser, M Two chromatographically separable forms of Escherichia coli elongation factor Tu. [electronic resource] - Proceedings of the National Academy of Sciences of the United States of America Mar 1978 - 1140-4 p. digital Publication Type: Journal Article ISSN: 0027-8424 Standard No.: 10.1073/pnas.75.3.1140 doi Subjects--Topical Terms: Bacterial Proteins--isolation & purificationChromatography, Ion ExchangeEscherichia coli--analysisGuanosine Diphosphate--metabolismPeptide Elongation Factors--isolation & purificationRibosomes--metabolism