This entry consists of several bacterial ParM/StbA plasmid stability proteins [1-3]. ParM is involved in the control of plasmid partition and required for the accurate segregation of the plasmid, which forms filaments to drive partition. This protein is an actin homologue and consists of two domains (I and II) with the same conformation [2-4]. This is the N-terminal domain.

1: Transcription of the stability operon of IncFII plasmid NR1. Min YN, Tabuchi A, Womble DD, Rownd RH; J Bacteriol 1991;173:2378-2384. PMID:1706707

2: Crystal structure of an archaeal actin homolog. Roeben A, Kofler C, Nagy I, Nickell S, Hartl FU, Bracher A; J Mol Biol. 2006;358:145-156. PMID:16500678

3: Structure and filament dynamics of the pSK41 actin-like ParM protein: implications for plasmid DNA segregation. Popp D, Xu W, Narita A, Brzoska AJ, Skurray RA, Firth N, Goshdastider U, Maeda Y, Robinson RC, Schumacher MA; J Biol Chem. 2010;285:10130-10140. PMID:20106979

4: Structural polymorphism of the ParM filament and dynamic instability. Galkin VE, Orlova A, Rivera C, Mullins RD, Egelman EH; Structure. 2009;17:1253-1264. PMID:19748346