Download MendeleyThe structure of human 15-lipoxygenase-2 with a substrate mimic.
Kobe, M.J., Neau, D.B., Mitchell, C.E., Bartlett, S.G., Newcomer, M.E.(2014) J Biol Chem 289: 8562-8569
- PubMed: 24497644
- DOI: https://doi.org/10.1074/jbc.M113.543777
- Primary Citation of Related Structures:
4NRE - PubMed Abstract:
Atherosclerosis is associated with chronic inflammation occurring over decades. The enzyme 15-lipoxygenase-2 (15-LOX-2) is highly expressed in large atherosclerotic plaques, and its activity has been linked to the progression of macrophages to the lipid-laden foam cells present in atherosclerotic plaques. We report here the crystal structure of human 15-LOX-2 in complex with an inhibitor that appears to bind as a substrate mimic. 15-LOX-2 contains a long loop, composed of hydrophobic amino acids, which projects from the amino-terminal membrane-binding domain. The loop is flanked by two Ca(2+)-binding sites that confer Ca(2+)-dependent membrane binding. A comparison of the human 15-LOX-2 and 5-LOX structures reveals similarities at the active sites, as well striking differences that can be exploited for design of isoform-selective inhibitors.
Organizational Affiliation:
From the Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana 70803 and.
