6wuz

From Proteopedia

(Difference between revisions)

Current revision

Crystal Structure of Recombinant Human Acetylcholinesterase Inhibited by GB

Structural highlights

6wuz is a 2 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 2.253Å
Ligands:	, , ,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

ACES_HUMAN Terminates signal transduction at the neuromuscular junction by rapid hydrolysis of the acetylcholine released into the synaptic cleft. Role in neuronal apoptosis.^[1] ^[2] ^[3] ^[4]

Publication Abstract from PubMed

The recent use of organophosphate nerve agents in Syria, Malaysia, Russia, and the United Kingdom has reinforced the potential threat of their intentional release. These agents act through their ability to inhibit human acetylcholinesterase (hAChE; E.C. 3.1.1.7), an enzyme vital for survival. The toxicity of hAChE inhibition via G-series nerve agents has been demonstrated to vary widely depending on the G-agent used. To gain insight into this issue, the structures of hAChE inhibited by tabun, sarin, cyclosarin, soman, and GP were obtained along with the inhibition kinetics for these agents. Through this information, the role of hAChE active site plasticity in agent selectivity is revealed. With reports indicating that the efficacy of reactivators can vary based on the nerve agent inhibiting hAChE, human recombinatorially expressed hAChE was utilized to define these variations for HI-6 among various G-agents. To identify the structural underpinnings of this phenomenon, the structures of tabun, sarin, and soman-inhibited hAChE in complex with HI-6 were determined. This revealed how the presence of G-agent adducts impacts reactivator access and placement within the active site. These insights will contribute toward a path of next-generation reactivators and an improved understanding of the innate issues with the current reactivators.

Structural and Biochemical Insights into the Inhibition of Human Acetylcholinesterase by G-Series Nerve Agents and Subsequent Reactivation by HI-6.,McGuire JR, Bester SM, Guelta MA, Cheung J, Langley C, Winemiller MD, Bae SY, Funk V, Myslinski JM, Pegan SD, Height JJ Chem Res Toxicol. 2021 Feb 4. doi: 10.1021/acs.chemrestox.0c00406. PMID:33538594^[5]

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

References

↑ Chhajlani V, Derr D, Earles B, Schmell E, August T. Purification and partial amino acid sequence analysis of human erythrocyte acetylcholinesterase. FEBS Lett. 1989 Apr 24;247(2):279-82. PMID:2714437
↑ Velan B, Grosfeld H, Kronman C, Leitner M, Gozes Y, Lazar A, Flashner Y, Marcus D, Cohen S, Shafferman A. The effect of elimination of intersubunit disulfide bonds on the activity, assembly, and secretion of recombinant human acetylcholinesterase. Expression of acetylcholinesterase Cys-580----Ala mutant. J Biol Chem. 1991 Dec 15;266(35):23977-84. PMID:1748670
↑ Shafferman A, Kronman C, Flashner Y, Leitner M, Grosfeld H, Ordentlich A, Gozes Y, Cohen S, Ariel N, Barak D, et al.. Mutagenesis of human acetylcholinesterase. Identification of residues involved in catalytic activity and in polypeptide folding. J Biol Chem. 1992 Sep 5;267(25):17640-8. PMID:1517212
↑ Yang L, He HY, Zhang XJ. Increased expression of intranuclear AChE involved in apoptosis of SK-N-SH cells. Neurosci Res. 2002 Apr;42(4):261-8. PMID:11985878
↑ McGuire JR, Bester SM, Guelta MA, Cheung J, Langley C, Winemiller MD, Bae SY, Funk V, Myslinski JM, Pegan SD, Height JJ. Structural and Biochemical Insights into the Inhibition of Human Acetylcholinesterase by G-Series Nerve Agents and Subsequent Reactivation by HI-6. Chem Res Toxicol. 2021 Feb 4. doi: 10.1021/acs.chemrestox.0c00406. PMID:33538594 doi:http://dx.doi.org/10.1021/acs.chemrestox.0c00406

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/6wuz"

@@ Line 3: / Line 3: @@
 <StructureSection load='6wuz' size='340' side='right'caption='[[6wuz]], [[Resolution|resolution]] 2.25&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[6wuz]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6WUZ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6WUZ FirstGlance]. <br>
+<table><tr><td colspan='2'>[[6wuz]] 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=6WUZ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6WUZ FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=7PE:2-(2-(2-(2-(2-(2-ETHOXYETHOXY)ETHOXY)ETHOXY)ETHOXY)ETHOXY)ETHANOL'>7PE</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=UCJ:propan-2-yl+hydrogen+(S)-methylphosphonate'>UCJ</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</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]] 2.253&#8491;</td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[6wuv|6wuv]], [[6wuy|6wuy]]</div></td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=7PE:2-(2-(2-(2-(2-(2-ETHOXYETHOXY)ETHOXY)ETHOXY)ETHOXY)ETHOXY)ETHANOL'>7PE</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=UCJ:propan-2-yl+hydrogen+(S)-methylphosphonate'>UCJ</scene></td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ACHE ([https://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'>[https://en.wikipedia.org/wiki/Acetylcholinesterase Acetylcholinesterase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.1.7 3.1.1.7] </span></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=6wuz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6wuz OCA], [https://pdbe.org/6wuz PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6wuz RCSB], [https://www.ebi.ac.uk/pdbsum/6wuz PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6wuz ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[https://www.uniprot.org/uniprot/ACES_HUMAN ACES_HUMAN]] Terminates signal transduction at the neuromuscular junction by rapid hydrolysis of the acetylcholine released into the synaptic cleft. Role in neuronal apoptosis.<ref>PMID:2714437</ref> <ref>PMID:1748670</ref> <ref>PMID:1517212</ref> <ref>PMID:11985878</ref>
+[https://www.uniprot.org/uniprot/ACES_HUMAN ACES_HUMAN] Terminates signal transduction at the neuromuscular junction by rapid hydrolysis of the acetylcholine released into the synaptic cleft. Role in neuronal apoptosis.<ref>PMID:2714437</ref> <ref>PMID:1748670</ref> <ref>PMID:1517212</ref> <ref>PMID:11985878</ref>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 28: / Line 26: @@
 __TOC__
 </StructureSection>
-[[Category: Acetylcholinesterase]]
+[[Category: Homo sapiens]]
-[[Category: Human]]
 [[Category: Large Structures]]
-[[Category: Bester, S M]]
+[[Category: Bester SM]]
-[[Category: Height, J J]]
+[[Category: Height JJ]]
-[[Category: McGuire, J R]]
+[[Category: McGuire JR]]
-[[Category: Pegan, S D]]
+[[Category: Pegan SD]]
-[[Category: Ga]]
-[[Category: Hydrolase]]
-[[Category: Nerve agent]]
-[[Category: Tabun]]

6wuz

From Proteopedia

Current revision

Crystal Structure of Recombinant Human Acetylcholinesterase Inhibited by GB

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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