Journal
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
Volume 21, Issue 11, Pages 3479-3482Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmcl.2011.03.050
Keywords
Magmas inhibitors; Guanidine pharmacophores; Chemical genetics; LRD-limited; Rational design; Molecular modeling; Tim16; Pam16; Mitochondrial protein import
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Funding
- James B. Ax Family Foundation
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Magmas (mitochondria associated, granulocyte-macrophage colony stimulating factor signaling molecule), is a highly conserved and essential gene, expressed in all cell types. We designed and synthesized several small molecule Magmas inhibitors (SMMI) and assayed their effects on proliferation in yeast. We found that the most active compound 9 inhibited growth at the 4 mu M scale. This compound was shown by fluorometric titration to bind to Magmas with a K(d) = 33 mu M. Target specificity of the lead compound was established by demonstrating direct binding of the compound to Magmas and by genetic studies. Molecular modeling suggested that the inhibitor bound at the predicted site in Magmas. (C) 2011 Elsevier Ltd. All rights reserved.
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