1oz3 | pdb_00001oz3

Crystal Structure of 3-MBT repeats of lethal (3) malignant Brain Tumor (Native-I) at 1.85 angstrom

spinqualitylabelsall models 1oz3, resolution 1.85Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1oz3 is a 3 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 1.85Å Ligands: MES, MSE, SO4 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function LMBL1_HUMAN Polycomb group (PcG) protein that specifically recognizes and binds mono- and dimethyllysine residues on target proteins, therey acting as a 'reader' of a network of post-translational modifications. PcG proteins maintain the transcriptionally repressive state of genes: acts as a chromatin compaction factor by recognizing and binding mono- and dimethylated histone H1b/HIST1H1E at 'Lys-26' (H1bK26me1 and H1bK26me2) and histone H4 at 'Lys-20' (H4K20me1 and H4K20me2), leading to condense chromatin and repress transcription. Recognizes and binds p53/TP53 monomethylated at 'Lys-382', leading to repress p53/TP53-target genes. Also recognizes and binds RB1/RB monomethylated at 'Lys-860'. Participates in the ETV6-mediated repression. Probably plays a role in cell proliferation. Overexpression induces multinucleated cells, suggesting that it is required to accomplish normal mitosis. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed We report on the X-ray structure of three 100-amino acid mbt repeats in h-l(3)mbt, a polycomb group protein involved in transcriptional repression, whose gene is located in a region of chromosome 20 associated with hematopoietic malignancies. Interdigitation between the extended arms and cores of the mbt repeats results in a three-leaved propeller-like architecture, containing a central cavity. We have identified one ligand binding pocket per mbt repeat, which accommodates either the morphilino ring of MES or the proline ring of the C-terminal peptide segment, within a cavity lined by aromatic amino acids. Strikingly, phenotypic alterations resulting from point mutations or deletions in the mbt repeats of the related Drosophila SCM protein are clustered in and around the ligand binding pocket. Malignant brain tumor repeats: a three-leaved propeller architecture with ligand/peptide binding pockets.,Wang WK, Tereshko V, Boccuni P, MacGrogan D, Nimer SD, Patel DJ Structure. 2003 Jul;11(7):775-89. PMID:12842041 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

Proteopedia Page Contributors and Editors (what is this?)

OCA