View source for 6dxz


==Rabbit N-acylethanolamine-hydrolyzing acid amidase (NAAA) in complex with non-covalent benzothiazole-piperazine inhibitor ARN19702, in presence of Triton X-100==
<StructureSection load='6dxz' size='340' side='right'caption='[[6dxz]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6dxz]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6DXZ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6DXZ 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]] 2.7&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=27L:4-(2,4,4-TRIMETHYLPENTAN-2-YL)PHENOL'>27L</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=TON:2-{2-[4-(1,1,3,3-TETRAMETHYLBUTYL)PHENOXY]ETHOXY}ETHANOL'>TON</scene>, <scene name='pdbligand=TRT:FRAGMENT+OF+TRITON+X-100'>TRT</scene>, <scene name='pdbligand=WTF:(2-ethylsulfonylphenyl)-[(2~{S})-4-(6-fluoranyl-1,3-benzothiazol-2-yl)-2-methyl-piperazin-1-yl]methanone'>WTF</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=6dxz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6dxz OCA], [https://pdbe.org/6dxz PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6dxz RCSB], [https://www.ebi.ac.uk/pdbsum/6dxz PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6dxz ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/NAAA_RABIT NAAA_RABIT] Degrades bioactive fatty acid amides to their corresponding acids, with the following preference: N-palmitoylethanolamine > N-myristoylethanolamine > N-stearoylethanolamine > N-oleoylethanolamine > N-linoleoylethanolamine > N-arachidonoylethanolamine.[UniProtKB:Q5KTC7]
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Palmitoylethanolamide is a bioactive lipid that strongly alleviates pain and inflammation in animal models and in humans. Its signaling activity is terminated through degradation by N-acylethanolamine acid amidase (NAAA), a cysteine hydrolase expressed at high levels in immune cells. Pharmacological inhibitors of NAAA activity exert profound analgesic and antiinflammatory effects in rodent models, pointing to this protein as a potential target for therapeutic drug discovery. To facilitate these efforts and to better understand the molecular mechanism of action of NAAA, we determined crystal structures of this enzyme in various activation states and in complex with several ligands, including both a covalent and a reversible inhibitor. Self-proteolysis exposes the otherwise buried active site of NAAA to allow catalysis. Formation of a stable substrate- or inhibitor-binding site appears to be conformationally coupled to the interaction of a pair of hydrophobic helices in the enzyme with lipid membranes, resulting in the creation of a linear hydrophobic cavity near the active site that accommodates the ligand's acyl chain.

Molecular mechanism of activation of the immunoregulatory amidase NAAA.,Gorelik A, Gebai A, Illes K, Piomelli D, Nagar B Proc Natl Acad Sci U S A. 2018 Oct 9. pii: 1811759115. doi:, 10.1073/pnas.1811759115. PMID:30301806<ref>PMID:30301806</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6dxz" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Oryctolagus cuniculus]]
[[Category: Gebai A]]
[[Category: Gorelik A]]
[[Category: Illes K]]
[[Category: Nagar B]]
[[Category: Piomelli D]]