Table I. ParAs involved in macromolecular complex transport.

Partial sequence alignment shows the conserved deviant Walker-box (grey) that defines the family.

Protein	Deviant Walker-A Box KGGXXK[ST]	Positioned Substrate	Intracellular Position	Positioning Reference
ParA P1 plasmid		P1 Plasmid	Longitudinally Equidistant	(Erdmann et al., 1999)
PldP C. glutamicum		Divisome	Midcell	(Donovan et al., 2010)
MipZ C. crescentus		Divisome	Midcell	(Thanbichler and Shapiro, 2006)
ParA S. elongatus		Carboxyzomes	Longitudinally Equidistant	(Savage et al., 2010)
PpfA R. sphaeroides		Chemotaxis Machinery	Longitudinally Equidistant	(Thompson et al., 2006)
BcsQ S. typhimurium		Cellulose Biosynthesis Complex	One polea	(Le Quéré and Ghigo, 2009)
VirC1 A. tumefaciens		T-DNA Nucleoprotein Complex	One polea	(Atmakuri et al., 2007)
ParC V. cholerae		Chemotaxis Machinery	New Pole	(Ringgaard et al., 2011)
FlhGc V. alginolyticus		Flagellar Machinery	Flagellated Pole	(Kusumoto et al., 2008)
CpaEd C. crescentus		Pilus Biogenesis Machinery	Piliated Pole	(Viollier et al., 2002)
WssJ P. fluorescens		Cellulose Biosynthesis Complex	N/A	(Spiers et al., 2003)
AgmE M. xanthus		The cellb	N/A	N/A

^aLocalization towards the old or new pole was not differentiated.

^bSuggested to be involved in “Adventurous” gliding motility of the cell (Youderian et al., 2003)

^cFleN in Pseudomonas spp.

^dTadZ in A. actinomycetemcomitans