6l1p | pdb_00006l1p

Crystal structure of PHF20L1 in complex with Hit 1

spinqualitylabelsall models 6l1p, resolution 1.23Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6l1p is a 4 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 1.231Å Ligands: E3X, GOL, SO4 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function P20L1_HUMAN Publication Abstract from PubMed The first Tudor domain (Tudor1) of PHF20L1 recognizes (non)histone methylation to play versatile roles. However, the underlying ligand-recognition mechanism remains unknown as a closed state revealed in the free-form structure. NMR relaxation dispersion and molecular dynamics simulations suggest a pre-existing low-population conformation with a remarkable rearrangement of aromatic cage residues of PHF20L1 Tudor1. Such an open-form conformation is utilized to recognize lysine 142 methylated DNMT1, a cosolvent, and an NMR fragment screening hit, as revealed by the complex crystal structures. Intriguingly, the ligand binding capacity was enhanced by mutation that tunes up the open-state population only. The recognition of DNMT1 by PHF20L1 was further validated in cancer cells. This conformational selection mechanism will enable the discovery of small molecule inhibitors against the seemingly "undruggable" PHF20L1 Tudor1. Conformational Selection in Ligand Recognition by the First Tudor Domain of PHF20L1.,Lv M, Gao J, Li M, Ma R, Li F, Liu Y, Liu M, Zhang J, Yao X, Wu J, Shi Y, Tang Y, Pan Y, Zhang Z, Ruan K J Phys Chem Lett. 2020 Sep 17;11(18):7932-7938. doi: 10.1021/acs.jpclett.0c02039., Epub 2020 Sep 9. PMID:32885980 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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