1887

Abstract

At least 14 phosphopolypeptides in which the phosphate groups were present as mono-esters were detected by pulse labelling of subsp. HD-1-Dipel with [P]orthophosphate at different stages of growth and differentiation. Marked changes in the profile of phosphopolypeptides were observed primarily during the late exponential phase of growth. Several phosphopolypeptides co-purified with the endotoxin crystal of this subspecies and the phosphoamino acid residue of the most abundant ( 25000) phosphopolypeptide was identified as phosphothreonine. Comparison of the phosphopolypeptides in endotoxin crystals from several subspecies suggested that 25000 species might be a common component.

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/content/journal/micro/10.1099/00221287-134-9-2559
1988-09-01
2021-10-25
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