Abstract
We have determined the sequence of a 3865-base pair DNA segment from Escherichia coli containing plsB, the structural gene for the sn-glycerol-3-phosphate acyltransferase, and the dgk locus, believed to encode diglyceride kinase. The 806-amino acid sequence encoded within the longest open reading frame is in agreement with NH2-terminal sequences of the sn-glycerol-3-phosphate acyltransferase (Green, P., Vanaman, T. C., Modrich, P., and Bell, R. M. (1983) J. Biol. Chem. 258, 10862-10866), indicating that this is the structural gene for this protein. Furthermore, an open reading frame encoding a 122-residue polypeptide consistent with the size of diglyceride kinase has been identified and coincides with the position of dgk determined by deletion analysis.
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