title: Evaluation of potential Myt1 kinase inhibitors by TR-FRET based binding assay.
abstract: In the human cell cycle, the Myt1 kinase is a crucial regulator of the G2/M transition. Because this membrane-associated kinase is hard to obtain and assay, there is a distinct lack of data so far. Here we report the derivatization of a glycoglycerolipid which was shown previously to be active in a Myt1 activity assay. These compounds were tested in a binding assay together with a set of common kinase inhibitors against a full-length Myt1 expressed in a human cell line. Dasatinib exhibited nanomolar affinity whereas broad coverage inhibitors such as sunitinib and staurosporine derivatives did not show any effect. We also carried out docking studies for the most potent compounds allowing further insights into the inhibitor interaction of this kinase. The glycoglycerolipids showed no significant effects in the binding assay, endorsing the idea of a mechanism of action distant from the active site.
authors: Department of Medicinal Chemistry, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, W.-Langenbeck-Str.4, 06120 Halle, Germany.
authors: Alexander
authors: A
authors: Rohe
authors: Christiane
authors: C
authors: Göllner
authors: Kanin
authors: K
authors: Wichapong
authors: Frank
authors: F
authors: Erdmann
authors: Ghassab M A
authors: GM
authors: Al-Mazaideh
authors: Wolfgang
authors: W
authors: Sippl
authors: Matthias
authors: M
authors: Schmidt
mesh_terms: D004305:Dose-Response Relationship, Drug; D031541:Fluorescence Resonance Energy Transfer; D006017:Glycolipids / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D006801:Humans; D008565:Membrane Proteins / Q000037:antagonists & inhibitors* / Q000302:isolation & purification / Q000378:metabolism; D008958:Models, Molecular; D015394:Molecular Structure; D047428:Protein Kinase Inhibitors / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D017346:Protein Serine-Threonine Kinases / Q000037:antagonists & inhibitors* / Q000302:isolation & purification / Q000378:metabolism; D011505:Protein-Tyrosine Kinases / Q000037:antagonists & inhibitors* / Q000302:isolation & purification / Q000378:metabolism; D013329:Structure-Activity Relationship
chemical_list: D006017:Glycolipids; D008565:Membrane Proteins; D047428:Protein Kinase Inhibitors; C015903:glycerolglycolipids; D011505:Protein-Tyrosine Kinases; C490679:PKMYT1 protein, human; D017346:Protein Serine-Threonine Kinases