2yt4

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[[Image:2yt4.gif|left|200px]]
[[Image:2yt4.gif|left|200px]]
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{{Structure
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|PDB= 2yt4 |SIZE=350|CAPTION= <scene name='initialview01'>2yt4</scene>, resolution 2.60&Aring;
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|GENE= DGCR8, C22orf12, DGCRK6 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])
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{{STRUCTURE_2yt4| PDB=2yt4 | SCENE= }}
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2yt4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2yt4 OCA], [http://www.ebi.ac.uk/pdbsum/2yt4 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2yt4 RCSB]</span>
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'''Crystal structure of human DGCR8 core'''
'''Crystal structure of human DGCR8 core'''
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[[Category: Cho, Y.]]
[[Category: Cho, Y.]]
[[Category: Sohn, S Y.]]
[[Category: Sohn, S Y.]]
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[[Category: dsrbd]]
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[[Category: Dsrbd]]
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[[Category: rna binding domain]]
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[[Category: Rna binding domain]]
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[[Category: rna binding protein]]
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[[Category: Rna binding protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 19:22:16 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 05:15:07 2008''
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Revision as of 16:22, 4 May 2008

Image:2yt4.gif

Template:STRUCTURE 2yt4

Crystal structure of human DGCR8 core


Overview

A complex of Drosha with DGCR8 (or its homolog Pasha) cleaves primary microRNA (pri-miRNA) substrates into precursor miRNA and initiates the microRNA maturation process. Drosha provides the catalytic site for this cleavage, whereas DGCR8 or Pasha provides a frame for anchoring substrate pri-miRNAs. To clarify the molecular basis underlying recognition of pri-miRNA by DGCR8 and Pasha, we determined the crystal structure of the human DGCR8 core (DGCR8S, residues 493-720). In the structure, the two double-stranded RNA-binding domains (dsRBDs) are arranged with pseudo two-fold symmetry and are tightly packed against the C-terminal helix. The H2 helix in each dsRBD is important for recognition of pri-miRNA substrates. This structure, together with fluorescent resonance energy transfer and mutational analyses, suggests that the DGCR8 core recognizes pri-miRNA in two possible orientations. We propose a model for DGCR8's recognition of pri-miRNA.

About this Structure

2YT4 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Crystal structure of human DGCR8 core., Sohn SY, Bae WJ, Kim JJ, Yeom KH, Kim VN, Cho Y, Nat Struct Mol Biol. 2007 Sep;14(9):847-53. Epub 2007 Aug 19. PMID:17704815 Page seeded by OCA on Sun May 4 19:22:16 2008

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