2nml

Crystal structure of HEF2/ERH at 1.55 A resolution

spinqualitylabelsall models 2nml, resolution 1.55Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2nml is a 1 chain structure with sequence from Homo sapiens. This structure supersedes the now removed PDB entry 2i4f. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.55Å Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function ERH_HUMAN May have a role in the cell cycle. 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 Functional complementation screens can identify known or novel proteins with important intracellular activities. We have isolated human enhancer of filamentation 2 (HEF2) in a screen to find human genes that promote pseudohyphal growth in budding yeast. HEF2 is identical to enhancer of rudimentary homolog (ERH), a highly conserved protein of 104 amino acids. In silico protein-interaction mapping implies that HEF2/ERH interacts with transcription factors, cell-cycle regulators, and other proteins shown to enhance filamentous growth in S. cerevisiae, suggesting a context for studies of HEF2/ERH function. To provide a mechanistic basis to study of HEF2/ERH, we have determined the crystal structure of HEF2/ERH at 1.55 A. The crystal asymmetric unit contains a HEF2/ERH monomer. The two monomers of the physiological dimer are related by the y, x, -z crystal symmetric operation. The HEF2/ERH structure is characterized by a novel alpha + beta fold, a four-strand antiparallel beta-sheet with three alpha-helixes on one side of the sheet. The beta-sheets from the two monomers together constitute a pseudo-beta-barrel, and form the center of the functional HEF2/ERH dimer, with a cavity channel at the dimer interface. Docking of this structure to the HEF2/ERH partner protein DCOH/PCD suggests that HEF2/ERH may regulate the oligomeric state of this protein. These data suggest that HEF2/ERH may be an important transcription regulator that also functions in the control of cell-cycle progression. A 1.55 A resolution X-ray crystal structure of HEF2/ERH and insights into its transcriptional and cell-cycle interaction networks.,Jin T, Guo F, Serebriiskii IG, Howard A, Zhang YZ Proteins. 2007 Aug 1;68(2):427-37. PMID:17444515 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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