Tubulin domain

Tubulin/FtsZ family, GTPase domain is an evolutionary conserved protein domain.

Tubulin
kif1a head-microtubule complex structure in atp-form
Identifiers
Symbol	Tubulin
Pfam	PF00091
Pfam clan	CL0442
InterPro	IPR003008
PROSITE	PDOC00201
SCOP2	1tub / SCOPe / SUPFAM
Available protein structures: Pfam   structures / ECOD   PDB RCSB PDB; PDBe; PDBj PDBsum structure summary

Tubulin
kif1a head-microtubule complex structure in atp-form
Identifiers
Symbol	Tubulin
Pfam	PF00091
Pfam clan	CL0442
InterPro	IPR003008
PROSITE	PDOC00201
SCOP2	1tub / SCOPe / SUPFAM
Available protein structures: Pfam   structures / ECOD   PDB RCSB PDB; PDBe; PDBj PDBsum structure summary

This domain is found in all tubulin chains,^[1] as well as the bacterial FtsZ family of proteins.^[2] These proteins are involved in polymer formation. Tubulin is the major component of microtubules, while FtsZ is the polymer-forming protein of bacterial cell division, it is part of a ring in the middle of the dividing cell that is required for constriction of cell membrane and cell envelope to yield two daughter cells. FtsZ and tubulin are GTPases,^[3] this entry is the GTPase domain. FtsZ can polymerise into tubes, sheets, and rings in vitro and is ubiquitous in bacteria and archaea.