2dt6

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[[Image:2dt6.jpg|left|200px]]
[[Image:2dt6.jpg|left|200px]]
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{{Structure
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|PDB= 2dt6 |SIZE=350|CAPTION= <scene name='initialview01'>2dt6</scene>
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The line below this paragraph, containing "STRUCTURE_2dt6", creates the "Structure Box" on the page.
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|GENE= SF3a120, SF3a1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])
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{{STRUCTURE_2dt6| PDB=2dt6 | SCENE= }}
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|RELATEDENTRY=[[2dt7|2DT7]]
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2dt6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2dt6 OCA], [http://www.ebi.ac.uk/pdbsum/2dt6 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2dt6 RCSB]</span>
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'''Solution structure of the first SURP domain of human splicing factor SF3a120'''
'''Solution structure of the first SURP domain of human splicing factor SF3a120'''
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[[Category: Tanaka, A.]]
[[Category: Tanaka, A.]]
[[Category: Yokoyama, S.]]
[[Category: Yokoyama, S.]]
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[[Category: national project on protein structural and functional analyse]]
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[[Category: National project on protein structural and functional analyse]]
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[[Category: nmr]]
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[[Category: Nmr]]
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[[Category: nppsfa]]
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[[Category: Nppsfa]]
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[[Category: riken structural genomics/proteomics initiative]]
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[[Category: Riken structural genomics/proteomics initiative]]
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[[Category: rsgi]]
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[[Category: Rsgi]]
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[[Category: sf3a120]]
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[[Category: Sf3a120]]
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[[Category: structural genomic]]
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[[Category: Structural genomic]]
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[[Category: structure genomic]]
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[[Category: Structure genomic]]
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[[Category: surp domain]]
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[[Category: Surp domain]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 01:16:49 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 02:39:12 2008''
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Revision as of 22:16, 3 May 2008

Image:2dt6.jpg

Template:STRUCTURE 2dt6

Solution structure of the first SURP domain of human splicing factor SF3a120


Overview

The SF3a complex, consisting of SF3a60, SF3a66, and SF3a120, in 17S U2 snRNP is crucial to spliceosomal assembly. SF3a120 contains two tandem SURP domains (SURP1 and SURP2), and SURP2 is responsible for binding to SF3a60. We found that the SURP2 fragment forms a stable complex with an SF3a60 fragment (residues 71-107) and solved its structure by NMR spectroscopy. SURP2 exhibits a fold of the alpha1-alpha2-3(10)-alpha3 topology, and the SF3a60 fragment forms an amphipathic alpha helix intimately contacting alpha1 of SURP2. We also solved the SURP1 structure, which has the same fold as SURP2. The protein-binding interface of SURP2 is quite similar to the corresponding surface of SURP1, except for two amino acid residues. One of them, Leu169, is characteristic of SF3a120 SURP2 among SURP domains. Mutagenesis showed that this single Leu residue is the critical determinant for complex formation, which reveals the protein recognition mechanism in the subunit assembly.

About this Structure

2DT6 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Solution structures of the SURP domains and the subunit-assembly mechanism within the splicing factor SF3a complex in 17S U2 snRNP., Kuwasako K, He F, Inoue M, Tanaka A, Sugano S, Guntert P, Muto Y, Yokoyama S, Structure. 2006 Nov;14(11):1677-89. PMID:17098193 Page seeded by OCA on Sun May 4 01:16:49 2008

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