View source for 6cge


==Crystal structure of human 17beta-HSD type 1 in ternary complex with PBRM and NADP+==
<StructureSection load='6cge' size='340' side='right'caption='[[6cge]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6cge]] is a 2 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=6CGE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6CGE 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]] 2.2&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=F0D:3-[[(8~{R},9~{S},13~{S},14~{S},16~{R},17~{S})-3-(2-bromoethyl)-13-methyl-17-oxidanyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-16-yl]methyl]benzamide'>F0D</scene>, <scene name='pdbligand=NAP:NADP+NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NAP</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=6cge FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6cge OCA], [https://pdbe.org/6cge PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6cge RCSB], [https://www.ebi.ac.uk/pdbsum/6cge PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6cge ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/DHB1_HUMAN DHB1_HUMAN] Favors the reduction of estrogens and androgens. Also has 20-alpha-HSD activity. Uses preferentially NADH.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
17beta-Hydroxysteroid dehydrogenase type 1 (17beta-HSD1) plays a pivotal role in the progression of estrogen-related diseases because of its involvement in the biosynthesis of estradiol (E2), constituting a valuable therapeutic target for endocrine treatment. In the present study, we successfully cocrystallized the enzyme with the reversible inhibitor 2-methoxy-16beta-( m-carbamoylbenzyl)-E2 (2-MeO-CC-156) as well as the enzyme with the irreversible inhibitor 3-(2-bromoethyl)-16beta-( m-carbamoylbenzyl)-17beta-hydroxy-1,3,5(10)-estratriene (PBRM). The structures of ternary complexes of 17beta-HSD1-2-MeO-CC-156-NADP(+) and 17beta-HSD1-PBRM-NADP(+) comparatively show the formation of a covalent bond between His(221) and the bromoethyl side chain of the inhibitor in the PBRM structure. A dynamic process including beneficial molecular interactions that favor the specific binding of a low-reactivity inhibitor and subsequent N-alkylation event through the participation of His(221) in the enzyme catalytic site clearly demonstrates the covalent bond formation. This finding opens the door to a new design of alkyl halide-based specific covalent inhibitors as potential therapeutic agents for different enzymes, contributing to the development of highly efficient inhibitors.

Combined Biophysical Chemistry Reveals a New Covalent Inhibitor with a Low-Reactivity Alkyl Halide.,Li T, Maltais R, Poirier D, Lin SX J Phys Chem Lett. 2018 Sep 20;9(18):5275-5280. doi: 10.1021/acs.jpclett.8b02225. , Epub 2018 Aug 31. PMID:30148957<ref>PMID:30148957</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6cge" style="background-color:#fffaf0;"></div>

==See Also==
*[[Hydroxysteroid dehydrogenase 3D structures|Hydroxysteroid dehydrogenase 3D structures]]
== References ==
<references/>
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Li T]]
[[Category: Lin SX]]