2P8R

Crystal structure of the C-terminal domain of C. elegans pre-mRNA splicing factor Prp8 carrying R2303K mutant


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.230 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure of the C-terminal domain of splicing factor Prp8 carrying retinitis pigmentosa mutants

Zhang, L.Shen, J.Guarnieri, M.T.Heroux, A.Yang, K.Zhao, R.

(2007) Protein Sci. 16: 1024-1031

  • DOI: 10.1110/ps.072872007
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Prp8 is a critical pre-mRNA splicing factor. Prp8 is proposed to help form and stabilize the spliceosome catalytic core and to be an important regulator of spliceosome activation. Mutations in human Prp8 (hPrp8) cause a severe form of the genetic dis ...

    Prp8 is a critical pre-mRNA splicing factor. Prp8 is proposed to help form and stabilize the spliceosome catalytic core and to be an important regulator of spliceosome activation. Mutations in human Prp8 (hPrp8) cause a severe form of the genetic disorder retinitis pigmentosa, RP13. Understanding the molecular mechanism of Prp8's function in pre-mRNA splicing and RP13 has been hindered by its large size (over 2000 amino acids) and remarkably low-sequence similarity with other proteins. Here we present the crystal structure of the C-terminal domain (the last 273 residues) of Caenorhabditis elegans Prp8 (cPrp8). The core of the C-terminal domain is an alpha/beta structure that forms the MPN (Mpr1, Pad1 N-terminal) fold but without Zn(2+) coordination. We propose that the C-terminal domain is a protein interaction domain instead of a Zn(2+)-dependent metalloenzyme as proposed for some MPN proteins. Mapping of RP13 mutants on the Prp8 structure suggests that these residues constitute a binding surface between Prp8 and other partner(s), and the disruption of this interaction provides a plausible molecular mechanism for RP13.


    Organizational Affiliation

    Department of Biochemistry and Molecular Genetics, University of Colorado at Denver and Health Sciences Center, Aurora, Colorado 80045, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Pre-mRNA-splicing factor Prp8
A
273Caenorhabditis elegansMutation(s): 1 
Gene Names: prp-8
Find proteins for P34369 (Caenorhabditis elegans)
Go to UniProtKB:  P34369
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.230 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 65.225α = 90.00
b = 65.225β = 90.00
c = 136.437γ = 90.00
Software Package:
Software NamePurpose
CNSphasing
HKL-2000data reduction
HKL-2000data scaling
PDB_EXTRACTdata extraction
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-05-22
    Type: Initial release
  • Version 1.1: 2007-09-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2011-08-31
    Type: Structure summary