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1nue

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Revision as of 18:43, 10 September 2015

X-RAY STRUCTURE OF NM23 HUMAN NUCLEOSIDE DIPHOSPHATE KINASE B COMPLEXED WITH GDP AT 2 ANGSTROMS RESOLUTION

Structural highlights

1nue is a 6 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Activity:	Nucleoside-diphosphate kinase, with EC number 2.7.4.6
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[NDKB_HUMAN] Major role in the synthesis of nucleoside triphosphates other than ATP. Negatively regulates Rho activity by interacting with AKAP13/LBC. Acts as a transcriptional activator of the MYC gene; binds DNA non-specifically (PubMed:8392752). Exhibits histidine protein kinase activity.^[1] ^[2]

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

BACKGROUND: Nucleoside diphosphate (NDP) kinases provide precursors for DNA and RNA synthesis. In mammals, these enzymes are also involved in cell regulations. Human NDP kinase B, product of the human nm23-H2 gene, is both an enzyme and a transcription factor. It activates transcription of the c-myc oncogene independently of its catalytic function, by binding to its promoter DNA. How do the two functions coexist? RESULTS: Recombinant human NDP kinase B was co-crystallized with GDP. The X-ray structure was solved at 2.0 A resolution by molecular replacement from the homologous Drosophila Awd protein. Both enzymes are homo-hexamers with a characteristic beta alpha beta beta alpha beta fold. GDP binds near the active site His118. The guanine base is in a surface cleft and interacts with the C terminus of another subunit. CONCLUSIONS: The beta alpha beta beta alpha beta fold, also present in the 'palm' domain of Escherichia coli DNA polymerase I and HIV reverse transcriptase, is both a mononucleotide- and a polynucleotide-binding fold. If NDP kinase B binds DNA in the same way as the polymerases, the enzyme must undergo a conformation change in order to carry out gene activation.

X-ray structure of human nucleoside diphosphate kinase B complexed with GDP at 2 A resolution.,Morera S, Lacombe ML, Xu Y, LeBras G, Janin J Structure. 1995 Dec 15;3(12):1307-14. PMID:8747457^[3]

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

References

↑ Iwashita S, Fujii M, Mukai H, Ono Y, Miyamoto M. Lbc proto-oncogene product binds to and could be negatively regulated by metastasis suppressor nm23-H2. Biochem Biophys Res Commun. 2004 Aug 6;320(4):1063-8. PMID:15249197 doi:http://dx.doi.org/10.1016/j.bbrc.2004.06.067
↑ Wieland T, Hippe HJ, Ludwig K, Zhou XB, Korth M, Klumpp S. Reversible histidine phosphorylation in mammalian cells: a teeter-totter formed by nucleoside diphosphate kinase and protein histidine phosphatase 1. Methods Enzymol. 2010;471:379-402. doi: 10.1016/S0076-6879(10)71020-X. Epub 2010 , Mar 1. PMID:20946858 doi:http://dx.doi.org/10.1016/S0076-6879(10)71020-X
↑ Morera S, Lacombe ML, Xu Y, LeBras G, Janin J. X-ray structure of human nucleoside diphosphate kinase B complexed with GDP at 2 A resolution. Structure. 1995 Dec 15;3(12):1307-14. PMID:8747457

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/1nue"

@@ Line 5: / Line 5: @@
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GDP:GUANOSINE-5-DIPHOSPHATE'>GDP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Nucleoside-diphosphate_kinase Nucleoside-diphosphate kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.4.6 2.7.4.6] </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=1nue FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nue OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1nue RCSB], [http://www.ebi.ac.uk/pdbsum/1nue 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=1nue FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nue OCA], [http://pdbe.org/1nue PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1nue RCSB], [http://www.ebi.ac.uk/pdbsum/1nue 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 1nue" style="background-color:#fffaf0;"></div>
 ==See Also==

1nue

From Proteopedia

Revision as of 18:43, 10 September 2015

X-RAY STRUCTURE OF NM23 HUMAN NUCLEOSIDE DIPHOSPHATE KINASE B COMPLEXED WITH GDP AT 2 ANGSTROMS RESOLUTION

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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