5mle

Crystal Structure of Human Dihydropyrimidinease-like 2 (DPYSL2A)/Collapsin Response Mediator Protein (CRMP2 13-516) Mutant Y479E/Y499E

spinqualitylabelsall models 5mle, resolution 2.48Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 5mle is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.48Å Ligands: EDO, NI, PEG Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function DPYL2_HUMAN Plays a role in neuronal development and polarity, as well as in axon growth and guidance, neuronal growth cone collapse and cell migration. Necessary for signaling by class 3 semaphorins and subsequent remodeling of the cytoskeleton (By similarity). Plays a role in neuron projection morphogenesis. Publication Abstract from PubMed Though used widely in cancer therapy, paclitaxel only elicits a response in a fraction of patients. A strong determinant of paclitaxel tumor response is the state of microtubule dynamic instability. However, whether the manipulation of this physiological process can be controlled to enhance paclitaxel response has not been tested. Here, we show a previously unrecognized role of the microtubule-associated protein CRMP2 in inducing microtubule bundling through its carboxy terminus. This activity is significantly decreased when the FER tyrosine kinase phosphorylates CRMP2 at Y479 and Y499. The crystal structures of wild-type CRMP2 and CRMP2-Y479E reveal how mimicking phosphorylation prevents tetramerization of CRMP2. Depletion of FER or reducing its catalytic activity using sub-therapeutic doses of inhibitors increases paclitaxel-induced microtubule stability and cytotoxicity in ovarian cancer cells and in vivo. This work provides a rationale for inhibiting FER-mediated CRMP2 phosphorylation to enhance paclitaxel on-target activity for cancer therapy. Tuning microtubule dynamics to enhance cancer therapy by modulating FER-mediated CRMP2 phosphorylation.,Zheng Y, Sethi R, Mangala LS, Taylor C, Goldsmith J, Wang M, Masuda K, Karaminejadranjbar M, Mannion D, Miranda F, Herrero-Gonzalez S, Hellner K, Chen F, Alsaadi A, Albukhari A, Fotso DC, Yau C, Jiang D, Pradeep S, Rodriguez-Aguayo C, Lopez-Berestein G, Knapp S, Gray NS, Campo L, Myers KA, Dhar S, Ferguson D, Bast RC Jr., Sood AK, von Delft F, Ahmed AA Nat Commun. 2018 Feb 2;9(1):476. doi: 10.1038/s41467-017-02811-7. PMID:29396402 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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