4kl7: Difference between revisions

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==Crystal structure of the catalytic domain of RpfB from Mycobacterium tuberculosis==
==Crystal structure of the catalytic domain of RpfB from Mycobacterium tuberculosis==
<StructureSection load='4kl7' size='340' side='right' caption='[[4kl7]], [[Resolution|resolution]] 1.45&Aring;' scene=''>
<StructureSection load='4kl7' size='340' side='right'caption='[[4kl7]], [[Resolution|resolution]] 1.45&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[4kl7]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_tuberculosis"_(zopf_1883)_klein_1884 "bacillus tuberculosis" (zopf 1883) klein 1884]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4KL7 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4KL7 FirstGlance]. <br>
<table><tr><td colspan='2'>[[4kl7]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4KL7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4KL7 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4emn|4emn]], [[3eo5|3eo5]], [[4kpm|4kpm]]</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=4kl7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4kl7 OCA], [https://pdbe.org/4kl7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4kl7 RCSB], [https://www.ebi.ac.uk/pdbsum/4kl7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4kl7 ProSAT]</span></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">rpfB, Rv1009, MT1038, MTC1237.26 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1773 "Bacillus tuberculosis" (Zopf 1883) Klein 1884])</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4kl7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4kl7 OCA], [http://pdbe.org/4kl7 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4kl7 RCSB], [http://www.ebi.ac.uk/pdbsum/4kl7 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4kl7 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/RPFB_MYCTU RPFB_MYCTU]] Factor that stimulates resuscitation of dormant cells. Has peptidoglycan (PG) hydrolytic activity. Active in the pM concentration range. Has little to no effect on actively-growing cells. PG fragments could either directly activate the resuscitation pathway of dormant bacteria or serve as a substrate for endogenous Rpf, resulting in low molecular weight products with resuscitation activity.<ref>PMID:12410821</ref> <ref>PMID:12906837</ref> <ref>PMID:18463693</ref> <ref>PMID:20016836</ref>  Reduces lag phase and enhances the growth of quiescent (1 month-old culture) M.tuberculosis; works best between 8 and 128 pM. Increases the number of bacteria that can be recovered from a 3 month-old culture. Stimulates growth of stationary phase M.bovis (a slowly-growing Mycobacterium) as well as M.smegmatis cells (a fast grower). Binds N,N',N''-triacetylchitotriose (tri-NAG). A fragment (residues 194-362) hydrolyzes an artificial lysozyme substrate 4-methylumbelliferyl-beta-D-N,N',N''-triacetylchitotrioside (MUF tri-NAG). By itself has little activity on cell wall, in combination with RipA is active against cell wall extracts from a number of Actinobacteria; this activity is inhibited by PBP1A (ponA1). Sequential gene disruption indicates RpfB and RpfE are higher than RpfD and RpfC in functional hierarchy.<ref>PMID:12410821</ref> <ref>PMID:12906837</ref> <ref>PMID:18463693</ref> <ref>PMID:20016836</ref>
[https://www.uniprot.org/uniprot/RPFB_MYCTU RPFB_MYCTU] Factor that stimulates resuscitation of dormant cells. Has peptidoglycan (PG) hydrolytic activity. Active in the pM concentration range. Has little to no effect on actively-growing cells. PG fragments could either directly activate the resuscitation pathway of dormant bacteria or serve as a substrate for endogenous Rpf, resulting in low molecular weight products with resuscitation activity.<ref>PMID:12410821</ref> <ref>PMID:12906837</ref> <ref>PMID:18463693</ref> <ref>PMID:20016836</ref>  Reduces lag phase and enhances the growth of quiescent (1 month-old culture) M.tuberculosis; works best between 8 and 128 pM. Increases the number of bacteria that can be recovered from a 3 month-old culture. Stimulates growth of stationary phase M.bovis (a slowly-growing Mycobacterium) as well as M.smegmatis cells (a fast grower). Binds N,N',N''-triacetylchitotriose (tri-NAG). A fragment (residues 194-362) hydrolyzes an artificial lysozyme substrate 4-methylumbelliferyl-beta-D-N,N',N''-triacetylchitotrioside (MUF tri-NAG). By itself has little activity on cell wall, in combination with RipA is active against cell wall extracts from a number of Actinobacteria; this activity is inhibited by PBP1A (ponA1). Sequential gene disruption indicates RpfB and RpfE are higher than RpfD and RpfC in functional hierarchy.<ref>PMID:12410821</ref> <ref>PMID:12906837</ref> <ref>PMID:18463693</ref> <ref>PMID:20016836</ref>  
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Berisio, R]]
[[Category: Large Structures]]
[[Category: Romano, M]]
[[Category: Mycobacterium tuberculosis]]
[[Category: Ruggiero, A]]
[[Category: Berisio R]]
[[Category: Squeglia, F]]
[[Category: Romano M]]
[[Category: Cell wall hydrolase]]
[[Category: Ruggiero A]]
[[Category: Hydrolase]]
[[Category: Squeglia F]]