2qlv

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==Crystal structure of the heterotrimer core of the S. cerevisiae AMPK homolog SNF1==
==Crystal structure of the heterotrimer core of the S. cerevisiae AMPK homolog SNF1==
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<StructureSection load='2qlv' size='340' side='right' caption='[[2qlv]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
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<StructureSection load='2qlv' size='340' side='right'caption='[[2qlv]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[2qlv]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_18824 Atcc 18824]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2QLV OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2QLV FirstGlance]. <br>
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<table><tr><td colspan='2'>[[2qlv]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Atcc_18824 Atcc 18824]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2QLV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2QLV FirstGlance]. <br>
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</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SNF1, CAT1, CCR1, GLC2, PAS14 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824]), SIP2, SPM2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824]), SNF4, CAT3 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824])</td></tr>
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</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SNF1, CAT1, CCR1, GLC2, PAS14 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824]), SIP2, SPM2 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824]), SNF4, CAT3 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824])</td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Non-specific_serine/threonine_protein_kinase Non-specific serine/threonine protein kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.1 2.7.11.1] </span></td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Non-specific_serine/threonine_protein_kinase Non-specific serine/threonine protein kinase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.1 2.7.11.1] </span></td></tr>
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<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=2qlv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qlv OCA], [http://pdbe.org/2qlv PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2qlv RCSB], [http://www.ebi.ac.uk/pdbsum/2qlv PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2qlv ProSAT]</span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2qlv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qlv OCA], [https://pdbe.org/2qlv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2qlv RCSB], [https://www.ebi.ac.uk/pdbsum/2qlv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2qlv ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/SNF1_YEAST SNF1_YEAST]] Essential for release from glucose repression. It interacts and has functional relationship to the regulatory protein SNF4. Could phosphorylate CAT8. Phosphorylates histone H3 to form H3S10ph, which promotes H3K14ac formation, and which is required for transcriptional activation through TBP recruitment to the promoters.<ref>PMID:15719021</ref> [[http://www.uniprot.org/uniprot/AAKG_YEAST AAKG_YEAST]] Adenine nucleotides-binding subunit gamma 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. 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 (SNF1) both by inducing phosphorylation and preventing dephosphorylation of catalytic subunits.<ref>PMID:10099331</ref> <ref>PMID:10224244</ref> <ref>PMID:11486005</ref> <ref>PMID:12393914</ref> <ref>PMID:12960168</ref> <ref>PMID:1468623</ref> <ref>PMID:18474591</ref> <ref>PMID:2169717</ref> <ref>PMID:22019086</ref> <ref>PMID:2557546</ref> <ref>PMID:3049551</ref> <ref>PMID:3939253</ref> <ref>PMID:6392017</ref> <ref>PMID:7050076</ref> <ref>PMID:8224185</ref> <ref>PMID:8544831</ref> <ref>PMID:8985180</ref> <ref>PMID:9600950</ref> [[http://www.uniprot.org/uniprot/SIP2_YEAST SIP2_YEAST]] Beta subunit of the SNF1 kinase complex, which is required for transcriptional, metabolic, and developmental adaptations in response to glucose limitation. Has a structural role, mediating heterotrimer formation, and a regulatory role, defining carbon source-regulated subcellular location and substrate specificity of the SNF1 kinase complex. Involved in the regulation of aging. Acts as a negative regulator of nuclear SNF1 activity in young cells by sequestering its activating gamma subunit at the plasma membrane.<ref>PMID:10990457</ref> <ref>PMID:12562756</ref>
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[[https://www.uniprot.org/uniprot/SNF1_YEAST SNF1_YEAST]] Essential for release from glucose repression. It interacts and has functional relationship to the regulatory protein SNF4. Could phosphorylate CAT8. Phosphorylates histone H3 to form H3S10ph, which promotes H3K14ac formation, and which is required for transcriptional activation through TBP recruitment to the promoters.<ref>PMID:15719021</ref> [[https://www.uniprot.org/uniprot/AAKG_YEAST AAKG_YEAST]] Adenine nucleotides-binding subunit gamma 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. 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 (SNF1) both by inducing phosphorylation and preventing dephosphorylation of catalytic subunits.<ref>PMID:10099331</ref> <ref>PMID:10224244</ref> <ref>PMID:11486005</ref> <ref>PMID:12393914</ref> <ref>PMID:12960168</ref> <ref>PMID:1468623</ref> <ref>PMID:18474591</ref> <ref>PMID:2169717</ref> <ref>PMID:22019086</ref> <ref>PMID:2557546</ref> <ref>PMID:3049551</ref> <ref>PMID:3939253</ref> <ref>PMID:6392017</ref> <ref>PMID:7050076</ref> <ref>PMID:8224185</ref> <ref>PMID:8544831</ref> <ref>PMID:8985180</ref> <ref>PMID:9600950</ref> [[https://www.uniprot.org/uniprot/SIP2_YEAST SIP2_YEAST]] Beta subunit of the SNF1 kinase complex, which is required for transcriptional, metabolic, and developmental adaptations in response to glucose limitation. Has a structural role, mediating heterotrimer formation, and a regulatory role, defining carbon source-regulated subcellular location and substrate specificity of the SNF1 kinase complex. Involved in the regulation of aging. Acts as a negative regulator of nuclear SNF1 activity in young cells by sequestering its activating gamma subunit at the plasma membrane.<ref>PMID:10990457</ref> <ref>PMID:12562756</ref>
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
<jmolCheckbox>
<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ql/2qlv_consurf.spt"</scriptWhenChecked>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ql/2qlv_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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</StructureSection>
</StructureSection>
[[Category: Atcc 18824]]
[[Category: Atcc 18824]]
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[[Category: Large Structures]]
[[Category: Non-specific serine/threonine protein kinase]]
[[Category: Non-specific serine/threonine protein kinase]]
[[Category: Amodeo, G A]]
[[Category: Amodeo, G A]]

Revision as of 08:24, 25 June 2021

Crystal structure of the heterotrimer core of the S. cerevisiae AMPK homolog SNF1

PDB ID 2qlv

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