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.

References

1. Nogales E, Wolf SG, Downing KH (January 1998). "Structure of the alpha beta tubulin dimer by electron crystallography". Nature. 391 (6663): 199–203. doi:10.1038/34465. PMID 9428769. S2CID 4412367.
2. Löwe J, Amos LA (January 1998). "Crystal structure of the bacterial cell-division protein FtsZ". Nature. 391 (6663): 203–6. doi:10.1038/34472. PMID 9428770. S2CID 4330857.
3. Nogales E, Downing KH, Amos LA, Löwe J (June 1998). "Tubulin and FtsZ form a distinct family of GTPases". Nat. Struct. Biol. 5 (6): 451–8. doi:10.1038/nsb0698-451. PMID 9628483. S2CID 5945125.

This article incorporates text from the public domain Pfam and InterPro: IPR003008