The type IV pilus assembly protein PilM is required for competency and pilus biogenesis [1-2]. It binds to PilN and ATP [3].

1: Characterization of genes required for pilus expression in Pseudomonas syringae pathovar phaseolicola. Roine E, Nunn DN, Paulin L, Romantschuk M; J Bacteriol. 1996;178:410-417. PMID:8550460

2: Identification, subcellular localization and functional interactions of PilMNOWQ and PilA4 involved in transformation competency and pilus biogenesis in the thermophilic bacterium Thermus thermophilus HB27. Rumszauer J, Schwarzenlander C, Averhoff B; FEBS J. 2006;273:3261-3272. PMID:16857013

3: Structure of the PilM-PilN inner membrane type IV pilus biogenesis complex from Thermus thermophilus. Karuppiah V, Derrick JP; J Biol Chem. 2011;286:24434-24442. PMID:21596754