1toz
From Proteopedia
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NMR structure of the human NOTCH-1 ligand binding region
Contents |
Overview
We present NMR structural and dynamics analysis of the putative ligand, binding region of human Notch-1, comprising EGF-like domains 11-13., Functional integrity of an unglycosylated, recombinant fragment was, confirmed by calcium-dependent binding of tetrameric complexes to, ligand-expressing cells. EGF modules 11 and 12 adopt a well-defined, rod-like orientation rigidified by calcium. The interdomain tilt is, similar to that found in previously studied calcium binding EGF pairs, but, the angle of twist is significantly different. This leads to an extended, double-stranded beta sheet structure, spanning the two EGF modules. Based, on the conservation of residues involved in interdomain hydrophobic, packing, we propose this arrangement to be prototypical of a distinct, class of EGF linkages. On this premise, we have constructed a model of the, 36 EGF modules of the Notch extracellular domain that enables predictions, to be made about the general role of calcium binding to this region.
Disease
Known diseases associated with this structure: Aortic valve disease OMIM:[190198], Leukemia, T-cell acute lymphoblastic OMIM:[190198]
About this Structure
1TOZ is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Structural and functional properties of the human notch-1 ligand binding region., Hambleton S, Valeyev NV, Muranyi A, Knott V, Werner JM, McMichael AJ, Handford PA, Downing AK, Structure. 2004 Dec;12(12):2173-83. PMID:15576031
Page seeded by OCA on Mon Nov 12 19:26:33 2007
