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2rb9

From Proteopedia

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Current revision

Crystal structure of E.coli HypE

Structural highlights

2rb9 is a 4 chain structure with sequence from Escherichia coli O157:H7. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2Å
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

A0A0H3JHA1_ECO57

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

Hydrogenases are enzymes involved in hydrogen metabolism, utilizing H2 as an electron source. [NiFe] hydrogenases are heterodimeric Fe-S proteins, with a large subunit containing the reaction center involving Fe and Ni metal ions and a small subunit containing one or more Fe-S clusters. Maturation of the [NiFe] hydrogenase involves assembly of nonproteinaceous ligands on the large subunit by accessory proteins encoded by the hyp operon. HypE is an essential accessory protein and participates in the synthesis of two cyano groups found in the large subunit. We report the crystal structure of Escherichia coli HypE at 2.0-A resolution. HypE exhibits a fold similar to that of PurM and ThiL and forms dimers. The C-terminal catalytically essential Cys336 is internalized at the dimer interface between the N- and C-terminal domains. A mechanism for dehydration of the thiocarbamate to the thiocyanate is proposed, involving Asp83 and Glu272. The interactions of HypE and HypF were characterized in detail by surface plasmon resonance and isothermal titration calorimetry, revealing a Kd (dissociation constant) of approximately 400 nM. The stoichiometry and molecular weights of the complex were verified by size exclusion chromatography and gel scanning densitometry. These experiments reveal that HypE and HypF associate to form a stoichiometric, hetero-oligomeric complex predominantly consisting of a [EF]2 heterotetramer which exists in a dynamic equilibrium with the EF heterodimer. The surface plasmon resonance results indicate that a conformational change occurs upon heterodimerization which facilitates formation of a productive complex as part of the carbamate transfer reaction.

Structure of [NiFe] hydrogenase maturation protein HypE from Escherichia coli and its interaction with HypF.,Rangarajan ES, Asinas A, Proteau A, Munger C, Baardsnes J, Iannuzzi P, Matte A, Cygler M J Bacteriol. 2008 Feb;190(4):1447-58. Epub 2007 Dec 7. PMID:18065529^[1]

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

References

↑ Rangarajan ES, Asinas A, Proteau A, Munger C, Baardsnes J, Iannuzzi P, Matte A, Cygler M. Structure of [NiFe] hydrogenase maturation protein HypE from Escherichia coli and its interaction with HypF. J Bacteriol. 2008 Feb;190(4):1447-58. Epub 2007 Dec 7. PMID:18065529 doi:http://dx.doi.org/10.1128/JB.01610-07

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2rb9"

@@ Line 3: / Line 3: @@
 <StructureSection load='2rb9' size='340' side='right'caption='[[2rb9]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2rb9]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Eco57 Eco57]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2RB9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2RB9 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2rb9]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_O157:H7 Escherichia coli O157:H7]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2RB9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2RB9 FirstGlance]. <br>
-</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2i6r|2i6r]]</div></td></tr>
+</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&#8491;</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">hypE, ECs3586 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83334 ECO57])</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=2rb9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2rb9 OCA], [https://pdbe.org/2rb9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2rb9 RCSB], [https://www.ebi.ac.uk/pdbsum/2rb9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2rb9 ProSAT]</span></td></tr>
 </table>
+== Function ==
+[https://www.uniprot.org/uniprot/A0A0H3JHA1_ECO57 A0A0H3JHA1_ECO57]
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 34: / Line 35: @@
 __TOC__
 </StructureSection>
-[[Category: Eco57]]
+[[Category: Escherichia coli O157:H7]]
 [[Category: Large Structures]]
-[[Category: Asinas, A E]]
+[[Category: Asinas AE]]
-[[Category: Structural genomic]]
+[[Category: Cygler M]]
-[[Category: Cygler, M]]
+[[Category: Matte A]]
-[[Category: Matte, A]]
+[[Category: Min T]]
-[[Category: Min, T]]
+[[Category: Munger C]]
-[[Category: Munger, C]]
+[[Category: Proteau A]]
-[[Category: Proteau, A]]
+[[Category: Rangarajan ES]]
-[[Category: Rangarajan, E S]]
-[[Category: Bsgi]]
-[[Category: Dimer]]
-[[Category: Enzyme]]
-[[Category: Hydrogenase maturation]]
-[[Category: Unknown function]]

2rb9

From Proteopedia

Current revision

Crystal structure of E.coli HypE

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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