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5i3a

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Crystal Structure of tyrosinase from Bacillus megaterium with configuration A of hydroquinone inhibitor in the active site

Structural highlights

5i3a is a 2 chain structure with sequence from Priestia megaterium. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.2Å
Ligands:	,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

B2ZB02_PRIMG

Publication Abstract from PubMed

Tyrosinases are responsible for melanin formation in all life domains. Tyrosinase inhibitors are used for the prevention of severe skin diseases, in skin-whitening creams and to avoid fruit browning, however continued use of many such inhibitors is considered unsafe. In this study we provide conclusive evidence of the inhibition mechanism of two well studied tyrosinase inhibitors, KA (kojic acid) and HQ (hydroquinone), which are extensively used in hyperpigmentation treatment. KA is reported in the literature with contradicting inhibition mechanisms, while HQ is described as both a tyrosinase inhibitor and a substrate. By visualization of KA and HQ in the active site of TyrBm crystals, together with molecular modeling, binding constant analysis and kinetic experiments, we have elucidated their mechanisms of inhibition, which was ambiguous for both inhibitors. We confirm that while KA acts as a mixed inhibitor, HQ can act both as a TyrBm substrate and as an inhibitor.

The unravelling of the complex pattern of tyrosinase inhibition.,Deri B, Kanteev M, Goldfeder M, Lecina D, Guallar V, Adir N, Fishman A Sci Rep. 2016 Oct 11;6:34993. doi: 10.1038/srep34993. PMID:27725765^[1]

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

References

↑ Deri B, Kanteev M, Goldfeder M, Lecina D, Guallar V, Adir N, Fishman A. The unravelling of the complex pattern of tyrosinase inhibition. Sci Rep. 2016 Oct 11;6:34993. doi: 10.1038/srep34993. PMID:27725765 doi:http://dx.doi.org/10.1038/srep34993

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5i3a"

@@ Line 3: / Line 3: @@
 <StructureSection load='5i3a' size='340' side='right'caption='[[5i3a]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5i3a]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_14581 Atcc 14581]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5I3A OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=5I3A FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5i3a]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Priestia_megaterium Priestia megaterium]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5I3A OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5I3A FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HQE:BENZENE-1,4-DIOL'>HQE</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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]] 2.2&#8491;</td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=5i3a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5i3a OCA], [http://pdbe.org/5i3a PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5i3a RCSB], [http://www.ebi.ac.uk/pdbsum/5i3a PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5i3a ProSAT]</span></td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HQE:BENZENE-1,4-DIOL'>HQE</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=5i3a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5i3a OCA], [https://pdbe.org/5i3a PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5i3a RCSB], [https://www.ebi.ac.uk/pdbsum/5i3a PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5i3a ProSAT]</span></td></tr>
 </table>
+== Function ==
+[https://www.uniprot.org/uniprot/B2ZB02_PRIMG B2ZB02_PRIMG]
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 23: / Line 26: @@
 __TOC__
 </StructureSection>
-[[Category: Atcc 14581]]
 [[Category: Large Structures]]
-[[Category: Adir, N]]
+[[Category: Priestia megaterium]]
-[[Category: Deri, B]]
+[[Category: Adir N]]
-[[Category: Fishman, A]]
+[[Category: Deri B]]
-[[Category: Kanteev, M]]
+[[Category: Fishman A]]
-[[Category: Di-copper oxidase]]
+[[Category: Kanteev M]]
-[[Category: Oxidoreductase]]

5i3a

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Current revision

Crystal Structure of tyrosinase from Bacillus megaterium with configuration A of hydroquinone inhibitor in the active site

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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