1bux: Difference between revisions
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==3'-PHOSPHORYLATED NUCLEOTIDES BINDING TO NUCLEOSIDE DIPHOSPHATE KINASE== | ==3'-PHOSPHORYLATED NUCLEOTIDES BINDING TO NUCLEOSIDE DIPHOSPHATE KINASE== | ||
<StructureSection load='1bux' size='340' side='right' caption='[[1bux]], [[Resolution|resolution]] 2.80Å' scene=''> | <StructureSection load='1bux' size='340' side='right'caption='[[1bux]], [[Resolution|resolution]] 2.80Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1bux]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_11735 Atcc 11735]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BUX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1BUX FirstGlance]. <br> | <table><tr><td colspan='2'>[[1bux]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_11735 Atcc 11735]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BUX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1BUX FirstGlance]. <br> | ||
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Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/bu/1bux_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/bu/1bux_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
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</div> | </div> | ||
<div class="pdbe-citations 1bux" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 1bux" style="background-color:#fffaf0;"></div> | ||
==See Also== | |||
*[[Nucleoside diphosphate kinase|Nucleoside diphosphate kinase]] | |||
== References == | == References == | ||
<references/> | <references/> | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Atcc 11735]] | [[Category: Atcc 11735]] | ||
[[Category: Large Structures]] | |||
[[Category: Nucleoside-diphosphate kinase]] | [[Category: Nucleoside-diphosphate kinase]] | ||
[[Category: Deville-Bonne, D]] | [[Category: Deville-Bonne, D]] | ||
Revision as of 09:58, 10 October 2019
3'-PHOSPHORYLATED NUCLEOTIDES BINDING TO NUCLEOSIDE DIPHOSPHATE KINASE3'-PHOSPHORYLATED NUCLEOTIDES BINDING TO NUCLEOSIDE DIPHOSPHATE KINASE
Structural highlights
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 PubMedNucleoside diphosphate (NDP) kinase catalyzes the phosphorylation of ribo- and deoxyribonucleosides diphosphates into triphosphates. NDP kinase is also involved in malignant tumors and was shown to activate in vitro transcription of the c-myc oncogene by binding to its NHE sequence. The structure of the complex of NDP kinase with bound ADP shows that the nucleotide adopts a different conformation from that observed in other phosphokinases with an internal H bond between the 3'-OH and the beta-O made free by the phosphate transfer. We use intrinsic protein fluorescence to investigate the inhibitory and binding potential of nucleotide analogues phosphorylated in 3'-OH position of the ribose to both wild type and F64W mutant NDP kinase from Dictyostelium discoideum. Due to their 3'-phosphate, 5'-phosphoadenosine 3'-phosphate (PAP) and adenosine 3'-phosphate 5'-phosphosulfate (PAPS) can be regarded as structural analogues of enzyme-bound ADP. The KD of PAPS (10 microM) is three times lower than the KD of ADP. PAPS also acts as a competitive inhibitor toward natural substrates during catalysis, with a KI in agreement with binding data. The crystal structure of the binary complex between Dictyostelium NDP kinase and PAPS was solved at 2.8-A resolution. It shows a new mode of nucleotide binding at the active site with the 3'-phosphate of PAPS located near the catalytic histidine, at the same position as the gamma-phosphate in the transition state. The sulfate group is directed toward the protein surface. PAPS will be useful for the design of high affinity drugs targeted to NDP kinases. 3'-Phosphorylated nucleotides are tight binding inhibitors of nucleoside diphosphate kinase activity.,Schneider B, Xu YW, Janin J, Veron M, Deville-Bonne D J Biol Chem. 1998 Oct 30;273(44):28773-8. PMID:9786875[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences |
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