Cell division GTPase; Essential cell division protein that forms a contractile ring structure (Z ring) at the future cell division site. The regulation of the ring assembly controls the timing and the location of cell division. One of the functions of the FtsZ ring is to recruit other cell division proteins to the septum to produce a new cell wall between the dividing cells. Binds GTP and shows GTPase activity.

Methyl-accepting chemotaxis protein; Causes tubulation when added to magnetosome-derived liposomes, binds liposomes; may be involved in constriction of the cell inner membrane to form mature magnetosomes. Binds preferentially to cardiolipin, a component of bacterial membranes, with very poor to no binding of other tested (phospho)lipids. Addition of cardiolipin to magnetosome-derived lipids increases tubulation. May function with MamX, MamZ amd Mms6 (By similarity).

Outer membrane protein and related peptidoglycan-associated protein.

Predicted Co/Zn/Cd cation transporters; Plays a dual, essential role in magnetosome formation; required for magnetosome vesicle formation as well as biomineralization (Probable). Probably binds and transports iron (By similarity). Requires heterodimerization with MamM for stability (By similarity); Belongs to the cation diffusion facilitator (CDF) transporter (TC 2.A.4) family.

Permease of the major facilitator superfamily; Required for correct biomineralization of the magnetosome; probably transports some form of iron. Partially functionally redundant with MamZ; Belongs to the major facilitator superfamily.

Hypothetical protein; Involved in redox-control of magnetite formation; oxidizes Fe(2+) to Fe(3+) or to mixed-valent Fe(2+)-Fe(3+) oxide minerals. May control magnetite crystal size and number (Probable). Overproduction of MamP leads to more crystals than normal during exponential growth of normal size; in stationary phase crystal numbers become wild-type.

Bacterial magnetic particle specific iron-binding protein; Promotes the formation of magnetite in Fe(2+)-rich conditions, when magnetite is not readily formed. Binds Fe(3+) and Fe(2+) (Probable). May play a role in nucleation of magnetite crystal formation (Probable). May help control production of crystals with a specific morphology (Probable). Greatly improves the formation of magnetosome-like magnetite crystals in vitro. Isolated short protein, probably residues 75-133, binds up to 18 Fe(3+) per monomer and self-assembles into micelles about 21-26 nm in diameter; the C-terminal 21 [...]

Hypothetical protein; May play a role in magnetite crystal maturation (Probable). May transfer electrons to balance the Fe(2+)-Fe(3+) ratio during magnetite formation (Probable).

Sensor protein gacS.