creators_name: Choudhury, Jagrity creators_name: Singh, Lucky creators_name: Chaudhuri, Barnali type: article datestamp: 2021-04-26 05:54:59 lastmod: 2021-04-26 05:54:59 metadata_visibility: show title: Biophysical Studies of Interaction between Mycobacterial SepF and FtsZ ispublished: pub subjects: QR note: Meeting Abstract abstract: FtsZ is the bacterial tubulin homolog that forms Z-ring, which is a dynamic ring like structure, at the site of cell division to assemble the divisome and generate constrictive force for septum formation. SepF is the key protein that anchors the constricting Z-ring to the protruding septal membrane in Mycobacterium tuberculosis, via its interaction with the intrinsically disordered C-terminal tail of FtsZ. We characterized the cytosolic component of mycobacterial SepF, and its interaction with cognate FtsZ, using negative stained electron microscopy, small angle X-ray scattering, 90 degree angle light scattering and isothermal titration calorimetry. Cytoplasmic domain of SepF from M. tuberculosis, like its other homologs, form large ring-shaped polymer. interaction between the C-terminal part of FtsZ and cytoplasmic SepF was confirmed by isothermal titration calorimetry. SepF induces bundling of FtsZ in the presence of nucleotides. Our results are discussed in light of the present understanding of divisome assembling date: 2021-02-12 date_type: published publication: BIOPHYSICAL JOURNAL volume: 120 number: 3 publisher: Cell Press pagerange: 22A refereed: TRUE issn: 1542-0086 official_url: https://www.cell.com/biophysj/pdf/S0006-3495(20)31304-7.pdf citation: Choudhury, Jagrity and Singh, Lucky and Chaudhuri, Barnali (2021) Biophysical Studies of Interaction between Mycobacterial SepF and FtsZ. BIOPHYSICAL JOURNAL, 120 (3). 22A. ISSN 1542-0086