View source for 7al2


==Cell division protein SepF from Methanobrevibacter smithii in complex with FtsZ-CTD==
<StructureSection load='7al2' size='340' side='right'caption='[[7al2]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7al2]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Methanobrevibacter_smithii_ATCC_35061 Methanobrevibacter smithii ATCC 35061] and [https://en.wikipedia.org/wiki/Methanobrevibacter_smithii_DSM_2375 Methanobrevibacter smithii DSM 2375]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7AL2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7AL2 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.701&#8491;</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7al2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7al2 OCA], [https://pdbe.org/7al2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7al2 RCSB], [https://www.ebi.ac.uk/pdbsum/7al2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7al2 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/A5UK83_METS3 A5UK83_METS3] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Most archaea divide by binary fission using an FtsZ-based system similar to that of bacteria, but they lack many of the divisome components described in model bacterial organisms. Notably, among the multiple factors that tether FtsZ to the membrane during bacterial cell constriction, archaea only possess SepF-like homologs. Here, we combine structural, cellular, and evolutionary analyses to demonstrate that SepF is the FtsZ anchor in the human-associated archaeon Methanobrevibacter smithii. 3D super-resolution microscopy and quantitative analysis of immunolabeled cells show that SepF transiently co-localizes with FtsZ at the septum and possibly primes the future division plane. M. smithii SepF binds to membranes and to FtsZ, inducing filament bundling. High-resolution crystal structures of archaeal SepF alone and in complex with the FtsZ C-terminal domain (FtsZCTD) reveal that SepF forms a dimer with a homodimerization interface driving a binding mode that is different from that previously reported in bacteria. Phylogenetic analyses of SepF and FtsZ from bacteria and archaea indicate that the two proteins may date back to the Last Universal Common Ancestor (LUCA), and we speculate that the archaeal mode of SepF/FtsZ interaction might reflect an ancestral feature. Our results provide insights into the mechanisms of archaeal cell division and pave the way for a better understanding of the processes underlying the divide between the two prokaryotic domains.

SepF is the FtsZ anchor in archaea, with features of an ancestral cell division system.,Pende N, Sogues A, Megrian D, Sartori-Rupp A, England P, Palabikyan H, Rittmann SKR, Grana M, Wehenkel AM, Alzari PM, Gribaldo S Nat Commun. 2021 Jun 4;12(1):3214. doi: 10.1038/s41467-021-23099-8. PMID:34088904<ref>PMID:34088904</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7al2" style="background-color:#fffaf0;"></div>

==See Also==
*[[Cell division protein 3D structures|Cell division protein 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Methanobrevibacter smithii ATCC 35061]]
[[Category: Methanobrevibacter smithii DSM 2375]]
[[Category: Alzari PM]]
[[Category: Sogues A]]
[[Category: Wehenkel AM]]