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[[Image:2aky.jpg|left|200px]]


{{Structure
==HIGH-RESOLUTION STRUCTURES OF ADENYLATE KINASE FROM YEAST LIGATED WITH INHIBITOR AP5A, SHOWING THE PATHWAY OF PHOSPHORYL TRANSFER==
|PDB= 2aky |SIZE=350|CAPTION= <scene name='initialview01'>2aky</scene>, resolution 1.96&Aring;
<StructureSection load='2aky' size='340' side='right'caption='[[2aky]], [[Resolution|resolution]] 1.96&Aring;' scene=''>
|SITE=
== Structural highlights ==
|LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> and <scene name='pdbligand=AP5:BIS(ADENOSINE)-5'-PENTAPHOSPHATE'>AP5</scene>
<table><tr><td colspan='2'>[[2aky]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AKY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2AKY FirstGlance]. <br>
|ACTIVITY= [http://en.wikipedia.org/wiki/Adenylate_kinase Adenylate kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.4.3 2.7.4.3]  
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.96&#8491;</td></tr>
|GENE=  
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AP5:BIS(ADENOSINE)-5-PENTAPHOSPHATE'>AP5</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></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=2aky FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2aky OCA], [https://pdbe.org/2aky PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2aky RCSB], [https://www.ebi.ac.uk/pdbsum/2aky PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2aky ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/KAD2_YEAST KAD2_YEAST] Catalyzes the reversible transfer of the terminal phosphate group between ATP and AMP. Plays an important role in cellular energy homeostasis and in adenine nucleotide metabolism. Adenylate kinase activity is critical for regulation of the phosphate utilization and the AMP de novo biosynthesis pathways.[HAMAP-Rule:MF_03168]<ref>PMID:18433446</ref> <ref>PMID:2848829</ref> <ref>PMID:2850178</ref>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ak/2aky_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2aky ConSurf].
<div style="clear:both"></div>


'''HIGH-RESOLUTION STRUCTURES OF ADENYLATE KINASE FROM YEAST LIGATED WITH INHIBITOR AP5A, SHOWING THE PATHWAY OF PHOSPHORYL TRANSFER'''
==See Also==
 
*[[Adenylate kinase 3D structures|Adenylate kinase 3D structures]]
 
== References ==
==Overview==
<references/>
The structure of adenylate kinase from yeast ligated with the two-substrate-mimicking inhibitor Ap5A and Mg2+ has been refined to 1.96 A resolution. In addition, the refined structure of the same complex with a bound imidazole molecule replacing Mg2+ has been determined at 1.63 A. These structures indicate that replacing Mg2+ by imidazole disturbs the water structure and thus the complex. A comparison with the G-proteins shows that Mg2+ is exactly at the same position with respect to the phosphates. However, although the Mg2+ ligand sphere of the G-proteins is a regular octahedron containing peptide ligands, the reported adenylate kinase has no such ligands and an open octahedron leaving space for the Mg2+ to accompany the transferred phosphoryl group. A superposition of the known crystalline and therefore perturbed phosphoryl transfer geometries in the adenylate kinases demonstrates that all of them are close to the start of the forward reaction with bound ATP and AMP. Averaging all observed perturbed structures gives rise to a close approximation of the transition state, indicating in general how to establish an elusive transition state geometry. The average shows that the in-line phosphoryl transfer is associative, because there is no space for a dissociative metaphosphate intermediate. As a side result, the secondary dipole interaction in the alpha-helices of both protein structures has been quantified.
__TOC__
 
</StructureSection>
==About this Structure==
[[Category: Large Structures]]
2AKY is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AKY OCA].
 
==Reference==
High-resolution structures of adenylate kinase from yeast ligated with inhibitor Ap5A, showing the pathway of phosphoryl transfer., Abele U, Schulz GE, Protein Sci. 1995 Jul;4(7):1262-71. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/7670369 7670369]
[[Category: Adenylate kinase]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Single protein]]
[[Category: Abele U]]
[[Category: Abele, U.]]
[[Category: Schulz GE]]
[[Category: Schulz, G E.]]
[[Category: AP5]]
[[Category: MG]]
[[Category: atp:amp phosphotransferase]]
[[Category: myokinase]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 15:50:51 2008''

Latest revision as of 12:13, 14 February 2024

HIGH-RESOLUTION STRUCTURES OF ADENYLATE KINASE FROM YEAST LIGATED WITH INHIBITOR AP5A, SHOWING THE PATHWAY OF PHOSPHORYL TRANSFERHIGH-RESOLUTION STRUCTURES OF ADENYLATE KINASE FROM YEAST LIGATED WITH INHIBITOR AP5A, SHOWING THE PATHWAY OF PHOSPHORYL TRANSFER

Structural highlights

2aky is a 1 chain structure with sequence from Saccharomyces cerevisiae. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.96Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

KAD2_YEAST Catalyzes the reversible transfer of the terminal phosphate group between ATP and AMP. Plays an important role in cellular energy homeostasis and in adenine nucleotide metabolism. Adenylate kinase activity is critical for regulation of the phosphate utilization and the AMP de novo biosynthesis pathways.[HAMAP-Rule:MF_03168][1] [2] [3]

Evolutionary Conservation

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

See Also

References

  1. ↑ Gauthier S, Coulpier F, Jourdren L, Merle M, Beck S, Konrad M, Daignan-Fornier B, Pinson B. Co-regulation of yeast purine and phosphate pathways in response to adenylic nucleotide variations. Mol Microbiol. 2008 Jun;68(6):1583-94. doi: 10.1111/j.1365-2958.2008.06261.x., Epub 2008 Apr 21. PMID:18433446 doi:http://dx.doi.org/10.1111/j.1365-2958.2008.06261.x
  2. ↑ Konrad M. Analysis and in vivo disruption of the gene coding for adenylate kinase (ADK1) in the yeast Saccharomyces cerevisiae. J Biol Chem. 1988 Dec 25;263(36):19468-74. PMID:2848829
  3. ↑ Bandlow W, Strobel G, Zoglowek C, Oechsner U, Magdolen V. Yeast adenylate kinase is active simultaneously in mitochondria and cytoplasm and is required for non-fermentative growth. Eur J Biochem. 1988 Dec 15;178(2):451-7. PMID:2850178

2aky, resolution 1.96Å

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