View source for 4ab1


==Recombinant Human Carboxylesterase 1 from whole Cabbage Loopers==
<StructureSection load='4ab1' size='340' side='right'caption='[[4ab1]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4ab1]] is a 1 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=4AB1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4AB1 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=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SCN:THIOCYANATE+ION'>SCN</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=4ab1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4ab1 OCA], [https://pdbe.org/4ab1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4ab1 RCSB], [https://www.ebi.ac.uk/pdbsum/4ab1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4ab1 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/EST1_HUMAN EST1_HUMAN] Involved in the detoxification of xenobiotics and in the activation of ester and amide prodrugs. Hydrolyzes aromatic and aliphatic esters, but has no catalytic activity toward amides or a fatty acyl-CoA ester. Hydrolyzes the methyl ester group of cocaine to form benzoylecgonine. Catalyzes the transesterification of cocaine to form cocaethylene. Displays fatty acid ethyl ester synthase activity, catalyzing the ethyl esterification of oleic acid to ethyloleate.<ref>PMID:7980644</ref> <ref>PMID:9169443</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The use of whole insect larvae as a source of recombinant proteins offers a more cost-effective method of producing large quantities of human proteins than conventional cell-culture approaches. Human carboxylesterase 1 has been produced in and isolated from whole Trichoplusia ni larvae. The recombinant protein was crystallized and its structure was solved to 2.2 resolution. The results indicate that the larvae-produced enzyme is essentially identical to that isolated from cultured Sf21 cells, supporting the use of this expression system to produce recombinant enzymes for crystallization studies.

Structure of recombinant human carboxylesterase 1 isolated from whole cabbage looper larvae.,Greenblatt HM, Otto TC, Kirkpatrick MG, Kovaleva E, Brown S, Buchman G, Cerasoli DM, Sussman JL Acta Crystallogr Sect F Struct Biol Cryst Commun. 2012 Mar 1;68(Pt 3):269-72., Epub 2012 Feb 15. PMID:22442219<ref>PMID:22442219</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4ab1" style="background-color:#fffaf0;"></div>

==See Also==
*[[Carboxylesterase|Carboxylesterase]]
*[[Carboxylesterase 3D structures|Carboxylesterase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Cerasoli DM]]
[[Category: Greenblatt HM]]
[[Category: Otto TC]]
[[Category: Sussman JL]]