FtsZ

• Description: cell-division initiation protein (septum formation)
  
  

Gene name	ftsZ
Synonyms	ts-1
Essential	yes PubMed
Product	cell-division initiation protein (septum formation)
Function	formation of Z-ring
Gene expression levels in SubtiExpress: ftsZ
Interactions involving this protein in SubtInteract: FtsZ
MW, pI	40 kDa, 4.814
Gene length, protein length	1146 bp, 382 aa
Immediate neighbours	ftsA, bpr
Sequences	Protein DNA DNA_with_flanks
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

Categories containing this gene/protein

cell division, essential genes, membrane proteins

This gene is a member of the following regulons

SigH regulon, WalR regulon

The gene

Basic information

• Locus tag: BSU15290

Phenotypes of a mutant

• essential PubMed, but dispensible in L-forms PubMed

Database entries

• BsubCyc: BSU15290

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family: ftsZ family (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactors:

• Effectors of protein activity:
  • Z ring formation is inhibited upon binding of MciZ to FtsZ
  • bundling of FtsZ protofilaments into strikingly long and regular tubular structures reminiscent of eukaryotic microtubules requires the prior formation of large ring polymers of SepF PubMed
  • interaction with UgtP inhibits FtsZ filament formation PubMed
  • FtsZ polymerization is inhibited by interaction with MinC PubMed
  • Z ring formation requires PdhA in a pyruvate-dependent manner PubMed

• Interactions:
  • FtsZ-ZapA PubMed
  • FtsZ-EzrA PubMed
  • FtsZ-SpoIIE
  • FtsZ-FtsA PubMed
  • FtsZ-FtsZ PubMed
  • MciZ-FtsZ PubMed, K_D: 150 nM PubMed
  • FtsZ (extreme C terminus of FtsZ)-SepF PubMed
  • RefZ-FtsZ PubMed
  • FtsZ-LytE PubMed
  • UgtP-FtsZ, this interaction inhibits FtsZ filament formation PubMed
  • FtsZ (C-terminal domain)-MinC PubMed
  • WalK-FtsZ PubMed

• Localization:
  • septal at the cell membrane PubMed
  • septal localization partially depends on the proton motive force PubMed
  • Noc and the Min system ensure the efficient utilization of the division site at midcell in by ensuring Z ring placement PubMed
  • FtsZ is anchored to the cell membrane by either FtsA or SepF PubMed

Database entries

• BsubCyc: BSU15290

• Structure:
  • 2VAM
  • 2RHL (dimer with GDP)
  • 4U39 (FtsZ-MciZ complex) PubMed

• UniProt: P17865

• KEGG entry: [3]

• E.C. number:

Additional information

• • the novel antibiotic ADEP (acyldepsipeptides) causes FtsZ degradation via dysregulation ClpP activity (activity occurs even in the absence of an ATPase subunit (ClpC, ClpE, or ClpX)) PubMed

Expression and regulation

• Operon: ftsA-ftsZ PubMed

• Expression browser: ftsZ PubMed

• Sigma factor: SigA PubMed, SigH PubMed

• Regulation:
  • activated by WalR PubMed

• Regulatory mechanism:

• Additional information:
  • number of protein molecules per cell (minimal medium with glucose and ammonium): 2347 PubMed
  • number of protein molecules per cell (complex medium with amino acids, without glucose): 4359 PubMed

Biological materials

• Mutant:

• strains:
  • GP1372 (Pxyl ftsZ aphA3) disA::tet cdaS::ermC for xylose inducible expression of ftsZ, available in Jörg Stülke's lab

• Expression vector:
  • GP2009: expression of ftsZ-Strep under control of the ftsZ promoter (based on pGP1389), available in Jörg Stülke's lab

• lacZ fusion:

• GFP fusion:

• two-hybrid system: B. pertussis adenylate cyclase-based bacterial two hybrid system (BACTH), available in Jörg Stülke's lab

• Antibody: available in the Jeff Errington lab

Labs working on this gene/protein

• Imrich Barak, Slovak Academy of Science, Bratislava, Slovakia homepage
• Leendert Hamoen, CBCB, Newcastle University, UK