PMID- 26099469 OWN - NLM STAT- MEDLINE DCOM- 20160405 LR - 20181113 IS - 2041-1723 (Electronic) IS - 2041-1723 (Linking) VI - 6 DP - 2015 Jun 23 TI - The bacterial tubulin FtsZ requires its intrinsically disordered linker to direct robust cell wall construction. PG - 7281 LID - 10.1038/ncomms8281 [doi] AB - The bacterial GTPase FtsZ forms a cytokinetic ring at midcell, recruits the division machinery and orchestrates membrane and peptidoglycan cell wall invagination. However, the mechanism for FtsZ regulation of peptidoglycan metabolism is unknown. The FtsZ GTPase domain is separated from its membrane-anchoring C-terminal conserved (CTC) peptide by a disordered C-terminal linker (CTL). Here we investigate CTL function in Caulobacter crescentus. Strikingly, production of FtsZ lacking the CTL (DeltaCTL) is lethal: cells become filamentous, form envelope bulges and lyse, resembling treatment with beta-lactam antibiotics. This phenotype is produced by FtsZ polymers bearing the CTC and a CTL shorter than 14 residues. Peptidoglycan synthesis still occurs downstream of DeltaCTL; however, cells expressing DeltaCTL exhibit reduced peptidoglycan crosslinking and longer glycan strands than wild type. Importantly, midcell proteins are still recruited to sites of DeltaCTL assembly. We propose that FtsZ regulates peptidoglycan metabolism through a CTL-dependent mechanism that extends beyond simple protein recruitment. FAU - Sundararajan, Kousik AU - Sundararajan K AD - Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA. FAU - Miguel, Amanda AU - Miguel A AD - Department of Bioengineering, Stanford University, Stanford, California 94305, USA. FAU - Desmarais, Samantha M AU - Desmarais SM AD - Department of Bioengineering, Stanford University, Stanford, California 94305, USA. FAU - Meier, Elizabeth L AU - Meier EL AD - Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA. FAU - Casey Huang, Kerwyn AU - Casey Huang K AD - 1] Department of Bioengineering, Stanford University, Stanford, California 94305, USA [2] Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California 94305, USA. FAU - Goley, Erin D AU - Goley ED AUID- ORCID: 0000000285182303 AD - Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA. LA - eng GR - DP2 OD006466/OD/NIH HHS/United States GR - T32 GM007445/GM/NIGMS NIH HHS/United States GR - T32 GM008294/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20150623 PL - England TA - Nat Commun JT - Nature communications JID - 101528555 RN - 0 (Bacterial Proteins) RN - 0 (Cytoskeletal Proteins) RN - 0 (FtsZ protein, Bacteria) RN - 0 (Intrinsically Disordered Proteins) RN - 0 (Peptidoglycan) SB - IM MH - Bacterial Proteins/*metabolism/ultrastructure MH - *Caulobacter crescentus MH - *Cell Division MH - *Cell Shape MH - Cell Wall/*metabolism/ultrastructure MH - Cytoskeletal Proteins/*metabolism/ultrastructure MH - Immunoblotting MH - Intrinsically Disordered Proteins/*metabolism/ultrastructure MH - Microscopy MH - Microscopy, Electron, Transmission MH - Peptidoglycan/*metabolism/ultrastructure MH - Polymerization PMC - PMC4532373 MID - NIHMS684980 COIS- Competing Financial interests The authors declare no competing financial interests. EDAT- 2015/06/24 06:00 MHDA- 2016/04/06 06:00 PMCR- 2015/12/23 CRDT- 2015/06/24 06:00 PHST- 2015/02/10 00:00 [received] PHST- 2015/04/26 00:00 [accepted] PHST- 2015/06/24 06:00 [entrez] PHST- 2015/06/24 06:00 [pubmed] PHST- 2016/04/06 06:00 [medline] PHST- 2015/12/23 00:00 [pmc-release] AID - ncomms8281 [pii] AID - 10.1038/ncomms8281 [doi] PST - epublish SO - Nat Commun. 2015 Jun 23;6:7281. doi: 10.1038/ncomms8281.