4QOZ

Crystal structure of the histone mRNA stem-loop, stem-loop binding protein (phosphorylated), and 3'hExo ternary complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.304 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.193 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Molecular mechanisms for the regulation of histone mRNA stem-loop-binding protein by phosphorylation.

Zhang, J.Tan, D.DeRose, E.F.Perera, L.Dominski, Z.Marzluff, W.F.Tong, L.Hall, T.M.

(2014) Proc.Natl.Acad.Sci.USA 111: E2937-E2946

  • DOI: 10.1073/pnas.1406381111
  • Primary Citation of Related Structures:  4TUW, 4TUX, 4TV0

  • PubMed Abstract: 
  • Replication-dependent histone mRNAs end with a conserved stem loop that is recognized by stem-loop-binding protein (SLBP). The minimal RNA-processing domain of SLBP is phosphorylated at an internal threonine, and Drosophila SLBP (dSLBP) also is phosp ...

    Replication-dependent histone mRNAs end with a conserved stem loop that is recognized by stem-loop-binding protein (SLBP). The minimal RNA-processing domain of SLBP is phosphorylated at an internal threonine, and Drosophila SLBP (dSLBP) also is phosphorylated at four serines in its 18-aa C-terminal tail. We show that phosphorylation of dSLBP increases RNA-binding affinity dramatically, and we use structural and biophysical analyses of dSLBP and a crystal structure of human SLBP phosphorylated on the internal threonine to understand the striking improvement in RNA binding. Together these results suggest that, although the C-terminal tail of dSLBP does not contact the RNA, phosphorylation of the tail promotes SLBP conformations competent for RNA binding and thereby appears to reduce the entropic penalty for the association. Increased negative charge in this C-terminal tail balances positively charged residues, allowing a more compact ensemble of structures in the absence of RNA.


    Organizational Affiliation

    Laboratory of Structural Biology, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709;




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
3'-5' exoribonuclease 1
B, E
303Homo sapiensGene Names: ERI1 (3'EXO, THEX1)
EC: 3.1.-.-
Find proteins for Q8IV48 (Homo sapiens)
Go to Gene View: ERI1
Go to UniProtKB:  Q8IV48
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Histone RNA hairpin-binding protein
C
120Homo sapiensGene Names: SLBP (HBP)
Find proteins for Q14493 (Homo sapiens)
Go to Gene View: SLBP
Go to UniProtKB:  Q14493
Entity ID: 1
MoleculeChainsLengthOrganism
histone mRNA stem-loopA,D26N/A
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
TPO
Query on TPO
C
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.304 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.193 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 82.107α = 90.00
b = 91.505β = 90.00
c = 128.722γ = 90.00
Software Package:
Software NamePurpose
CBASSdata collection
COMOphasing
PHENIXrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2014-06-21 
  • Released Date: 2014-07-23 
  • Deposition Author(s): Tan, D., Tong, L.

Revision History 

  • Version 1.0: 2014-07-23
    Type: Initial release
  • Version 1.1: 2014-08-06
    Type: Database references