Abstract
1. Washed cells and supernatant from a culture of a Butyrivibrio sp. carry out the intermolecular transacylation reaction 2 phosphatidylethanolamine leads to N-acylphosphatidyl-ethanolamine+lysophosphatidylethanolamine. 2. Washed cells can catalyse the intramolecular transacylation of N-(acyl)glycerylphosphorylethanolamine to lysophosphatidylethanolamine; the culture supernatant is largely devoid of activity.