Biological Assembly 1  

 3D View: Structure | Electron Density

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 20041.70 
• Atom Count: 1311 
• Residue Count: 172 
• Unique protein chains: 1

1T5I

Crystal structure of the C-terminal domain of UAP56

• DOI: 10.2210/pdb1T5I/pdb

• Classification: PRE-MRNA PROCESSING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli


• Deposited: 2004-05-04 Released: 2004-08-31 
• Deposition Author(s): Zhao, R., Green, M.R., Shen, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.9 Å
• R-Value Free: 0.268 
• R-Value Work: 0.224 

Literature

Crystal structure of UAP56, a "DEXD/H-box" protein involved in pre-mRNA splicing and mRNA export

Zhao, R., Shen, J., Green, M.R., Macmorris, M., Blumenthal, T.

(2004) Structure 12: 1373-1381

• PubMed: 15296731 
• DOI: 10.1016/j.str.2004.06.006
• Primary Citation of Related Structures:  
  1T6N


• PubMed Abstract: 
  

UAP56 is an essential eukaryotic pre-mRNA splicing factor and mRNA export factor. The mechanisms of its functions are not well understood. We determined the crystal structures of the N- and C-terminal domains of human UAP56 (comprising 90% of the full-length UAP56) at 1.9 A resolution. The two domains each have a RecA-like fold and are connected by a flexible linker. The overall fold of each domain is highly similar to the corresponding domains of eIF4A (a prototypic DExD/H-box protein), with differences at the loops and termini. This structural similarity suggests that UAP56 is likely to possess ATPase and helicase activity similar to eIF4A. The NTP binding pocket of UAP56 is occupied by a citrate ion, mimicking the phosphates of NTP and retaining the P loop in an open conformation. The crystal structure of the N-terminal domain of UAP56 also reveals a dimer interface that is potentially important for UAP56's function.

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Organizational Affiliation: 

Department of Biochemistry and Molecular Genetics, University of Colorado Health Sciences Center, Aurora, Colorado 80045, USA. [e-mail]

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
C_TERMINAL DOMAIN OF A PROBABLE ATP-DEPENDENT RNA HELICASE	A	172	Homo sapiens	Mutation(s): 0  Gene Names: DDX39B (BAT1, UAP56) EC: 3.6.4.13
Find proteins for Q13838 (Homo sapiens) Go to Gene View: DDX39B Go to UniProtKB:  Q13838

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.9 Å
• R-Value Free: 0.268 
• R-Value Work: 0.224 
• Space Group: P 4₃

Unit Cell:

Length (Å)	Angle (°)
a = 33.582	α = 90.00
b = 33.582	β = 90.00
c = 119.075	γ = 90.00

Software Package:

Software Name	Purpose
SCALEPACK	data scaling
CNS	refinement
HKL-2000	data collection
HKL-2000	data reduction
SOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2004-05-04 
• Released Date: 2004-08-31 
• Deposition Author(s): Zhao, R., Green, M.R., Shen, J.

Revision History 

• Version 1.0: 2004-08-31
  Type: Initial release
• Version 1.1: 2008-04-30
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance