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1on2

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Revision as of 02:51, 10 September 2015

Bacillus subtilis Manganese Transport Regulator (MntR), D8M Mutant, Bound to Manganese

Structural highlights

1on2 is a 2 chain structure with sequence from "bacillus_globigii"_migula_1900 "bacillus globigii" migula 1900. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	1on1
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[MNTR_BACSU] Central regulator of manganese homeostasis. In the presence of manganese, it mediates repression of the manganese transporter MntH; under low manganese conditions, it activates the transcription of the mntABCD operon.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The Bacillus subtilis manganese transport regulator, MntR, binds Mn2+ as an effector and is a repressor of transporters that import manganese. A member of the diphtheria toxin repressor (DtxR) family of metalloregulatory proteins, MntR exhibits selectivity for Mn2+ over Fe2+. Replacement of a metal-binding residue, Asp8, with methionine (D8M) relaxes this specificity. We report here the X-ray crystal structures of wild-type MntR and the D8M mutant bound to manganese with 1.75 A and 1.61 A resolution, respectively. The 142-residue MntR homodimer has substantial structural similarity to the 226-residue DtxR but lacks the C-terminal SH3-like domain of DtxR. The metal-binding pockets of MntR and DtxR are substantially different. The cation-to-cation distance between the two manganese ions bound by MntR is 3.3 A, whereas that between the metal ions bound by DtxR is 9 A. D8M binds only a single Mn2+ per monomer, owing to alteration of the metal-binding site. The sole retained metal site adopts pseudo-hexacoordinate geometry rather than the pseudo-heptacoordinate geometry of the MntR metal sites.

Structure of the manganese-bound manganese transport regulator of Bacillus subtilis.,Glasfeld A, Guedon E, Helmann JD, Brennan RG Nat Struct Biol. 2003 Aug;10(8):652-7. PMID:12847518^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Glasfeld A, Guedon E, Helmann JD, Brennan RG. Structure of the manganese-bound manganese transport regulator of Bacillus subtilis. Nat Struct Biol. 2003 Aug;10(8):652-7. PMID:12847518 doi:10.1038/nsb951

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1on2"

@@ Line 2: / Line 2: @@
 <StructureSection load='1on2' size='340' side='right' caption='[[1on2]], [[Resolution|resolution]] 1.61&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1on2]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Bacillus_subtilis Bacillus subtilis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ON2 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ON2 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1on2]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_globigii"_migula_1900 "bacillus globigii" migula 1900]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ON2 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ON2 FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1on1|1on1]]</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=1on2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1on2 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1on2 RCSB], [http://www.ebi.ac.uk/pdbsum/1on2 PDBsum]</span></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=1on2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1on2 OCA], [http://pdbe.org/1on2 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1on2 RCSB], [http://www.ebi.ac.uk/pdbsum/1on2 PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 27: / Line 27: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 1on2" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Bacillus subtilis]]
+[[Category: Bacillus globigii migula 1900]]
 [[Category: Brennan, R G]]
 [[Category: Glasfeld, A]]

1on2

From Proteopedia

Revision as of 02:51, 10 September 2015

Bacillus subtilis Manganese Transport Regulator (MntR), D8M Mutant, Bound to Manganese

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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