3f46

From Proteopedia

(Difference between revisions)

Revision as of 09:26, 25 October 2017

The Crystal Structure of C176A Mutated [Fe]-Hydrogenase (Hmd) Holoenzyme from Methanocaldococcus jannaschii

Structural highlights

3f46 is a 1 chain structure with sequence from Atcc 43067. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , ,
Related:	2b0j, 3dag, 3daf, 3f47
Gene:	hmd, MJ0784 (ATCC 43067)
Activity:	5,10-methenyltetrahydromethanopterin hydrogenase, with EC number 1.12.98.2
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[HMD_METJA] Catalyzes the reversible reduction of methenyl-H(4)MPT(+) to methylene-H(4)MPT (By similarity).

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

[Fe]-hydrogenase is one of three types of enzymes known to activate H(2). Crystal structure analysis recently revealed that its active site iron is ligated square-pyramidally by Cys176-sulfur, two CO, an "unknown" ligand and the sp(2)-hybridized nitrogen of a unique iron-guanylylpyridinol-cofactor. We report here on the structure of the C176A mutated enzyme crystallized in the presence of dithiothreitol (DTT). It suggests an iron center octahedrally coordinated by one DTT-sulfur and one DTT-oxygen, two CO, the 2-pyridinol's nitrogen and the 2-pyridinol's 6-formylmethyl group in an acyl-iron ligation. This result led to a re-interpretation of the iron ligation in the wild-type.

The crystal structure of C176A mutated [Fe]-hydrogenase suggests an acyl-iron ligation in the active site iron complex.,Hiromoto T, Ataka K, Pilak O, Vogt S, Stagni MS, Meyer-Klaucke W, Warkentin E, Thauer RK, Shima S, Ermler U FEBS Lett. 2009 Feb 4;583(3):585-90. Epub 2009 Jan 20. PMID:19162018^[1]

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

References

↑ Hiromoto T, Ataka K, Pilak O, Vogt S, Stagni MS, Meyer-Klaucke W, Warkentin E, Thauer RK, Shima S, Ermler U. The crystal structure of C176A mutated [Fe]-hydrogenase suggests an acyl-iron ligation in the active site iron complex. FEBS Lett. 2009 Feb 4;583(3):585-90. Epub 2009 Jan 20. PMID:19162018 doi:http://dx.doi.org/10.1016/j.febslet.2009.01.017

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/3f46"

@@ Line 1: / Line 1: @@
 ==The Crystal Structure of C176A Mutated [Fe]-Hydrogenase (Hmd) Holoenzyme from Methanocaldococcus jannaschii==
 <StructureSection load='3f46' size='340' side='right' caption='[[3f46]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
@@ Line 7: / Line 8: @@
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">hmd, MJ0784 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2190 ATCC 43067])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/5,10-methenyltetrahydromethanopterin_hydrogenase 5,10-methenyltetrahydromethanopterin hydrogenase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.12.98.2 1.12.98.2] </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=3f46 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3f46 OCA], [http://pdbe.org/3f46 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3f46 RCSB], [http://www.ebi.ac.uk/pdbsum/3f46 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=3f46 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3f46 OCA], [http://pdbe.org/3f46 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3f46 RCSB], [http://www.ebi.ac.uk/pdbsum/3f46 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3f46 ProSAT]</span></td></tr>
 </table>
 == Function ==

3f46

From Proteopedia

Revision as of 09:26, 25 October 2017

The Crystal Structure of C176A Mutated [Fe]-Hydrogenase (Hmd) Holoenzyme from Methanocaldococcus jannaschii

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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