View source for 2uv4


==Crystal Structure of a CBS domain pair from the regulatory gamma1 subunit of human AMPK in complex with AMP==
<StructureSection load='2uv4' size='340' side='right'caption='[[2uv4]], [[Resolution|resolution]] 1.33&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2uv4]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2UV4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2UV4 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.33&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AMP:ADENOSINE+MONOPHOSPHATE'>AMP</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=2uv4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2uv4 OCA], [https://pdbe.org/2uv4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2uv4 RCSB], [https://www.ebi.ac.uk/pdbsum/2uv4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2uv4 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/AAKG1_HUMAN AAKG1_HUMAN] AMP/ATP-binding subunit of AMP-activated protein kinase (AMPK), an energy sensor protein kinase that plays a key role in regulating cellular energy metabolism. In response to reduction of intracellular ATP levels, AMPK activates energy-producing pathways and inhibits energy-consuming processes: inhibits protein, carbohydrate and lipid biosynthesis, as well as cell growth and proliferation. AMPK acts via direct phosphorylation of metabolic enzymes, and by longer-term effects via phosphorylation of transcription regulators. Also acts as a regulator of cellular polarity by remodeling the actin cytoskeleton; probably by indirectly activating myosin. Gamma non-catalytic subunit mediates binding to AMP, ADP and ATP, leading to activate or inhibit AMPK: AMP-binding results in allosteric activation of alpha catalytic subunit (PRKAA1 or PRKAA2) both by inducing phosphorylation and preventing dephosphorylation of catalytic subunits. ADP also stimulates phosphorylation, without stimulating already phosphorylated catalytic subunit. ATP promotes dephosphorylation of catalytic subunit, rendering the AMPK enzyme inactive.<ref>PMID:21680840</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/uv/2uv4_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=2uv4 ConSurf].
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== Publication Abstract from PubMed ==
AMP-activated kinase (AMPK) is central to sensing energy status in eukaryotic cells via binding of AMP and ATP to CBS (cystathionine beta-synthase) domains in the regulatory gamma subunit. The structure of a CBS-domain pair from human AMPK gamma1 in complex with the physiological activator AMP and the pharmacological activator ZMP (AICAR) is presented.

Structure of a CBS-domain pair from the regulatory gamma1 subunit of human AMPK in complex with AMP and ZMP.,Day P, Sharff A, Parra L, Cleasby A, Williams M, Horer S, Nar H, Redemann N, Tickle I, Yon J Acta Crystallogr D Biol Crystallogr. 2007 May;63(Pt 5):587-96. Epub 2007, Apr 21. PMID:17452784<ref>PMID:17452784</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 2uv4" style="background-color:#fffaf0;"></div>

==See Also==
*[[AMP-activated protein kinase 3D structures|AMP-activated protein kinase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Cleasby A]]
[[Category: Day P]]
[[Category: Horer S]]
[[Category: Nar H]]
[[Category: PArra L]]
[[Category: Redemann N]]
[[Category: Sharff A]]
[[Category: Tickle I]]
[[Category: Williams M]]
[[Category: Yon J]]