1xtj
From Proteopedia
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|PDB= 1xtj |SIZE=350|CAPTION= <scene name='initialview01'>1xtj</scene>, resolution 2.70Å | |PDB= 1xtj |SIZE=350|CAPTION= <scene name='initialview01'>1xtj</scene>, resolution 2.70Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= <scene name='pdbligand= | + | |LIGAND= <scene name='pdbligand=ACY:ACETIC+ACID'>ACY</scene>, <scene name='pdbligand=ADP:ADENOSINE-5'-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> |
|ACTIVITY= | |ACTIVITY= | ||
|GENE= BAT1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | |GENE= BAT1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY=[[1xti|1XTI]], [[1xtk|1XTK]] | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1xtj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1xtj OCA], [http://www.ebi.ac.uk/pdbsum/1xtj PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1xtj RCSB]</span> | ||
}} | }} | ||
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[[Category: Shi, H.]] | [[Category: Shi, H.]] | ||
[[Category: Xu, R M.]] | [[Category: Xu, R M.]] | ||
| - | [[Category: ACY]] | ||
| - | [[Category: ADP]] | ||
| - | [[Category: MG]] | ||
[[Category: alpha-beta fold]] | [[Category: alpha-beta fold]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 00:54:29 2008'' |
Revision as of 21:54, 30 March 2008
| |||||||
| , resolution 2.70Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , , | ||||||
| Gene: | BAT1 (Homo sapiens) | ||||||
| Related: | 1XTI, 1XTK
| ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
structure of human UAP56 in complex with ADP
Overview
Pre-mRNA splicing requires the function of a number of RNA-dependent ATPases/helicases, yet no three-dimensional structure of any spliceosomal ATPases/helicases is known. The highly conserved DECD-box protein UAP56/Sub2 is an essential splicing factor that is also important for mRNA export. The expected ATPase/helicase activity appears to be essential for the UAP56/Sub2 functions. Here, we show that purified human UAP56 is an active RNA-dependent ATPase, and we also report the crystal structures of UAP56 alone and in complex with ADP, as well as a DECD to DEAD mutant. The structures reveal a unique spatial arrangement of the two conserved helicase domains, and ADP-binding induces significant conformational changes of key residues in the ATP-binding pocket. Our structural analyses suggest a specific protein-RNA displacement model of UAP56/Sub2. The detailed structural information provides important mechanistic insights into the splicing function of UAP56/Sub2. The structures also will be useful for the analysis of other spliceosomal DExD-box ATPases/helicases.
About this Structure
1XTJ is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Crystal structure of the human ATP-dependent splicing and export factor UAP56., Shi H, Cordin O, Minder CM, Linder P, Xu RM, Proc Natl Acad Sci U S A. 2004 Dec 21;101(51):17628-33. Epub 2004 Dec 7. PMID:15585580
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