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7s20
From Proteopedia
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| - | '''Unreleased structure''' | ||
| - | + | ==M. xanthus encapsulin shell protein EncA with T=3 symmetry== | |
| + | <StructureSection load='7s20' size='340' side='right'caption='[[7s20]], [[Resolution|resolution]] 3.40Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[7s20]] is a 3 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7S20 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7S20 FirstGlance]. <br> | ||
| + | </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=7s20 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7s20 OCA], [https://pdbe.org/7s20 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7s20 RCSB], [https://www.ebi.ac.uk/pdbsum/7s20 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7s20 ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Encapsulins are bacterial organelle-like cages involved in various aspects of metabolism, especially protection from oxidative stress. They can serve as vehicles for a wide range of medical applications. Encapsulin shell proteins are structurally similar to HK97 bacteriophage capsid protein and their function depends on the encapsulated cargos. The Myxococcus xanthus encapsulin system comprises EncA and three cargos: EncB, EncC, and EncD. EncB and EncC are similar to bacterial ferritins that can oxidize Fe(+2) to less toxic Fe(+3). We analyzed EncA, EncB, and EncC by cryo-EM and X-ray crystallography. Cryo-EM shows that EncA cages can have T = 3 and T = 1 symmetry and that EncA T = 1 has a unique protomer arrangement. Also, we define EncB and EncC binding sites on EncA. X-ray crystallography of EncB and EncC reveals conformational changes at the ferroxidase center and additional metal binding sites, suggesting a mechanism for Fe oxidation and storage within the encapsulin shell. | ||
| - | + | Structural characterization of the Myxococcusxanthus encapsulin and ferritin-like cargo system gives insight into its iron storage mechanism.,Eren E, Wang B, Winkler DC, Watts NR, Steven AC, Wingfield PT Structure. 2022 Feb 2. pii: S0969-2126(22)00008-9. doi:, 10.1016/j.str.2022.01.008. PMID:35150605<ref>PMID:35150605</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| + | <div class="pdbe-citations 7s20" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
[[Category: Eren, E]] | [[Category: Eren, E]] | ||
| + | [[Category: Bacterial nano-compartment]] | ||
| + | [[Category: Cytosolic protein]] | ||
| + | [[Category: Encapsulin]] | ||
| + | [[Category: Iron storage]] | ||
| + | [[Category: Nanocage]] | ||
| + | [[Category: Virus like particle]] | ||
Current revision
M. xanthus encapsulin shell protein EncA with T=3 symmetry
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