7fs7

From Proteopedia

(Difference between revisions)

Current revision

Structure of liver pyruvate kinase in complex with allosteric modulator 20

Structural highlights

7fs7 is a 8 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.774Å
Ligands:	, , , ,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

KPYR_HUMAN Defects in PKLR are the cause of pyruvate kinase hyperactivity (PKHYP) [MIM:102900; also known as high red cell ATP syndrome. This autosomal dominant phenotype is characterized by increase of red blood cell ATP.^[1] Defects in PKLR are the cause of pyruvate kinase deficiency of red cells (PKRD) [MIM:266200. A frequent cause of hereditary non-spherocytic hemolytic anemia. Clinically, pyruvate kinase-deficient patients suffer from a highly variable degree of chronic hemolysis, ranging from severe neonatal jaundice and fatal anemia at birth, severe transfusion-dependent chronic hemolysis, moderate hemolysis with exacerbation during infection, to a fully compensated hemolysis without apparent anemia.

Function

KPYR_HUMAN Plays a key role in glycolysis (By similarity).

Publication Abstract from PubMed

The liver isoform of pyruvate kinase (PKL) has gained interest due to its potential capacity to regulate fatty acid synthesis involved in the progression of non-alcoholic fatty liver disease (NAFLD). Here we describe a novel series of PKL modulators that can either activate or inhibit the enzyme allosterically, from a cryptic site at the interface of two protomers in the tetrameric enzyme. Starting from urolithin D, we designed and synthesised 42 new compounds. The effect of these compounds on PKL enzymatic activity was assessed after incubation with cell lysates obtained from a liver cell line. Pronounced activation of PKL activity, up to 3.8-fold, was observed for several compounds at 10 muM, while other compounds were prominent PKL inhibitors reducing its activity to 81% at best. A structure-activity relationship identified linear-shaped sulfone-sulfonamides as activators and non-linear compounds as inhibitors. Crystal structures revealed the conformations of these modulators, which were used as a reference for designing new modulators.

Tuning liver pyruvate kinase activity up or down with a new class of allosteric modulators.,Nain-Perez A, Nilsson O, Lulla A, Haversen L, Brear P, Liljenberg S, Hyvonen M, Boren J, Grotli M Eur J Med Chem. 2023 Mar 15;250:115177. doi: 10.1016/j.ejmech.2023.115177. Epub , 2023 Feb 1. PMID:36753880^[2]

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

References

↑ Beutler E, Westwood B, van Zwieten R, Roos D. G-->T transition at cDNA nt 110 (K37Q) in the PKLR (pyruvate kinase) gene is the molecular basis of a case of hereditary increase of red blood cell ATP. Hum Mutat. 1997;9(3):282-5. PMID:9090535 doi:<282::AID-HUMU13>3.0.CO;2-Z 10.1002/(SICI)1098-1004(1997)9:3<282::AID-HUMU13>3.0.CO;2-Z
↑ Nain-Perez A, Nilsson O, Lulla A, Håversen L, Brear P, Liljenberg S, Hyvönen M, Borén J, Grøtli M. Tuning liver pyruvate kinase activity up or down with a new class of allosteric modulators. Eur J Med Chem. 2023 Mar 15;250:115177. PMID:36753880 doi:10.1016/j.ejmech.2023.115177

1 Structural highlights
2 Disease
3 Function
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/7fs7"

@@ Line 4: / Line 4: @@
 == Structural highlights ==
 <table><tr><td colspan='2'>[[7fs7]] is a 8 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=7FS7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7FS7 FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FBP:BETA-FRUCTOSE-1,6-DIPHOSPHATE'>FBP</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=OAT:N-{[4-(3,4-dihydroxybenzene-1-sulfonyl)phenyl]methyl}-N-(3,4-dihydroxyphenyl)-3,4-dihydroxybenzene-1-sulfonamide'>OAT</scene>, <scene name='pdbligand=OXL:OXALATE+ION'>OXL</scene></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.774&#8491;</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FBP:BETA-FRUCTOSE-1,6-DIPHOSPHATE'>FBP</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=OAT:N-{[4-(3,4-dihydroxybenzene-1-sulfonyl)phenyl]methyl}-N-(3,4-dihydroxyphenyl)-3,4-dihydroxybenzene-1-sulfonamide'>OAT</scene>, <scene name='pdbligand=OXL:OXALATE+ION'>OXL</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=7fs7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7fs7 OCA], [https://pdbe.org/7fs7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7fs7 RCSB], [https://www.ebi.ac.uk/pdbsum/7fs7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7fs7 ProSAT]</span></td></tr>
 </table>

7fs7

From Proteopedia

Current revision

Structure of liver pyruvate kinase in complex with allosteric modulator 20

Structural highlights

Disease

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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