2.3.1.54 cytoplasm - 5737 -, 671437 2.3.1.54 cytoplasm the normally soluble dimeric enzyme pyruvate formate-lyase (PflB) interacts specifically with FocA, association of PflB with the cytoplasmic membrane is FocA-dependent 5737 736638 2.3.1.54 membrane - 16020 736638 2.3.1.54 mitochondrion - 5739 674782