4hwk

From Proteopedia

(Difference between revisions)

Revision as of 18:12, 4 August 2016

Crystal structure of human sepiapterin reductase in complex with sulfapyridine

Structural highlights

4hwk is a 4 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , , ,
Gene:	SPR (HUMAN)
Activity:	Sepiapterin reductase (L-erythro-7,8-dihydrobiopterin forming), with EC number 1.1.1.153
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[SPRE_HUMAN] Defects in SPR are the cause of dystonia DOPA-responsive due to sepiapterin reductase deficiency (DRDSPRD) [MIM:612716]. In the majority of cases, patients manifest progressive psychomotor retardation, dystonia and spasticity. Cognitive anomalies are also often present. The disease is due to severe dopamine and serotonin deficiencies in the central nervous system caused by a defect in BH4 synthesis. Dystonia is defined by the presence of sustained involuntary muscle contractions, often leading to abnormal postures.^[1] ^[2] ^[3]

Function

[SPRE_HUMAN] Catalyzes the final one or two reductions in tetra-hydrobiopterin biosynthesis to form 5,6,7,8-tetrahydrobiopterin.

Publication Abstract from PubMed

The introduction of sulfa drugs for the chemotherapy of bacterial infections in 1935 revolutionized medicine. Although their mechanism of action is understood, the molecular bases for most of their side effects remain obscure. Here, we report that sulfamethoxazole and other sulfa drugs interfere with tetrahydrobiopterin biosynthesis through inhibition of sepiapterin reductase. Crystal structures of sepiapterin reductase with bound sulfa drugs reveal how structurally diverse sulfa drugs achieve specific inhibition of the enzyme. The effect of sulfa drugs on tetrahydrobiopterin-dependent neurotransmitter biosynthesis in cell-based assays provides a rationale for some of their central nervous system-related side effects, particularly in high-dose sulfamethoxazole therapy of Pneumocystis pneumonia. Our findings reveal an unexpected aspect of the pharmacology of sulfa drugs and might translate into their improved medical use.

Tetrahydrobiopterin biosynthesis as an off-target of sulfa drugs.,Haruki H, Pedersen MG, Gorska KI, Pojer F, Johnsson K Science. 2013 May 24;340(6135):987-91. doi: 10.1126/science.1232972. PMID:23704574^[4]

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

References

↑ Bonafe L, Thony B, Penzien JM, Czarnecki B, Blau N. Mutations in the sepiapterin reductase gene cause a novel tetrahydrobiopterin-dependent monoamine-neurotransmitter deficiency without hyperphenylalaninemia. Am J Hum Genet. 2001 Aug;69(2):269-77. Epub 2001 Jul 6. PMID:11443547 doi:10.1086/321970
↑ Abeling NG, Duran M, Bakker HD, Stroomer L, Thony B, Blau N, Booij J, Poll-The BT. Sepiapterin reductase deficiency an autosomal recessive DOPA-responsive dystonia. Mol Genet Metab. 2006 Sep-Oct;89(1-2):116-20. Epub 2006 May 2. PMID:16650784 doi:10.1016/j.ymgme.2006.03.010
↑ Friedman J, Hyland K, Blau N, MacCollin M. Dopa-responsive hypersomnia and mixed movement disorder due to sepiapterin reductase deficiency. Neurology. 2006 Dec 12;67(11):2032-5. PMID:17159114 doi:10.1212/01.wnl.0000247274.21261.b4
↑ Haruki H, Pedersen MG, Gorska KI, Pojer F, Johnsson K. Tetrahydrobiopterin biosynthesis as an off-target of sulfa drugs. Science. 2013 May 24;340(6135):987-91. doi: 10.1126/science.1232972. PMID:23704574 doi:10.1126/science.1232972

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/4hwk"

@@ Line 1: / Line 1: @@
 ==Crystal structure of human sepiapterin reductase in complex with sulfapyridine==
 <StructureSection load='4hwk' size='340' side='right' caption='[[4hwk]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[4hwk]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4HWK OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4HWK FirstGlance]. <br>
+<table><tr><td colspan='2'>[[4hwk]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4HWK OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4HWK FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NAP:NADP+NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NAP</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene>, <scene name='pdbligand=SFY:4-AMINO-N-(PYRIDIN-2-YL)BENZENESULFONAMIDE'>SFY</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SPR ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SPR ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Sepiapterin_reductase_(L-erythro-7,8-dihydrobiopterin_forming) Sepiapterin reductase (L-erythro-7,8-dihydrobiopterin forming)], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.153 1.1.1.153] </span></td></tr>
-<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=4hwk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4hwk OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4hwk RCSB], [http://www.ebi.ac.uk/pdbsum/4hwk PDBsum]</span></td></tr>
+<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=4hwk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4hwk OCA], [http://pdbe.org/4hwk PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4hwk RCSB], [http://www.ebi.ac.uk/pdbsum/4hwk PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4hwk ProSAT]</span></td></tr>
 </table>
 == Disease ==
@@ Line 20: / Line 21: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4hwk" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Homo sapiens]]
+[[Category: Human]]
 [[Category: Johnsson, K]]
 [[Category: Pedersen, M Groenlund]]

4hwk

From Proteopedia

Revision as of 18:12, 4 August 2016

Crystal structure of human sepiapterin reductase in complex with sulfapyridine

Structural highlights

Disease

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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