Structural highlights
Publication Abstract from PubMed
Trichloroethylene (TCE) is one of the most widespread environmental contaminants, which is metabolized to N-acetyl-S-1,2-dichlorovinyl-l-cysteine (NA-DCVC) before being excreted in the urine. Alternatively, NA-DCVC can be deacetylated by aminoacylase 3 (AA3), an enzyme that is highly expressed in the kidney, liver, and brain. NA-DCVC deacetylation initiates the transformation into toxic products that ultimately causes acute renal failure. AA3 inhibition is therefore a target of interest to prevent TCE induced nephrotoxicity. Here we report the crystal structure of recombinant mouse AA3 (mAA3) in the presence of its acetate byproduct and two substrates: N(alpha)-acetyl-l-tyrosine and NA-DCVC. These structures, in conjunction with biochemical data, indicated that AA3 mediates substrate specificity through van der Waals interactions providing a dynamic interaction interface, which facilitates a diverse range of substrates.
Structures of aminoacylase 3 in complex with acetylated substrates.,Hsieh JM, Tsirulnikov K, Sawaya MR, Magilnick N, Abuladze N, Kurtz I, Abramson J, Pushkin A Proc Natl Acad Sci U S A. 2010 Oct 4. PMID:20921362[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Hsieh JM, Tsirulnikov K, Sawaya MR, Magilnick N, Abuladze N, Kurtz I, Abramson J, Pushkin A. Structures of aminoacylase 3 in complex with acetylated substrates. Proc Natl Acad Sci U S A. 2010 Oct 4. PMID:20921362 doi:10.1073/pnas.1006687107
