6D13

Crystal structure of E.coli RppH-DapF complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.06 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural and kinetic insights into stimulation of RppH-dependent RNA degradation by the metabolic enzyme DapF.

Gao, A.Vasilyev, N.Luciano, D.J.Levenson-Palmer, R.Richards, J.Marsiglia, W.M.Traaseth, N.J.Belasco, J.G.Serganov, A.

(2018) Nucleic Acids Res. 46: 6841-6856

  • DOI: 10.1093/nar/gky327
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Vitally important for controlling gene expression in eukaryotes and prokaryotes, the deprotection of mRNA 5' termini is governed by enzymes whose activity is modulated by interactions with ancillary factors. In Escherichia coli, 5'-end-dependent mRNA ...

    Vitally important for controlling gene expression in eukaryotes and prokaryotes, the deprotection of mRNA 5' termini is governed by enzymes whose activity is modulated by interactions with ancillary factors. In Escherichia coli, 5'-end-dependent mRNA degradation begins with the generation of monophosphorylated 5' termini by the RNA pyrophosphohydrolase RppH, which can be stimulated by DapF, a diaminopimelate epimerase involved in amino acid and cell wall biosynthesis. We have determined crystal structures of RppH-DapF complexes and measured rates of RNA deprotection. These studies show that DapF potentiates RppH activity in two ways, depending on the nature of the substrate. Its stimulatory effect on the reactivity of diphosphorylated RNAs, the predominant natural substrates of RppH, requires a substrate long enough to reach DapF in the complex, while the enhanced reactivity of triphosphorylated RNAs appears to involve DapF-induced changes in RppH itself and likewise increases with substrate length. This study provides a basis for understanding the intricate relationship between cellular metabolism and mRNA decay and reveals striking parallels with the stimulation of decapping activity in eukaryotes.


    Organizational Affiliation

    Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, 550 First Avenue, New York, NY 10016, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Diaminopimelate epimerase
A
275Escherichia coli O45:K1 (strain S88 / ExPEC)Mutation(s): 0 
Gene Names: dapF
EC: 5.1.1.7
Find proteins for B7MH73 (Escherichia coli O45:K1 (strain S88 / ExPEC))
Go to UniProtKB:  B7MH73
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
RNA pyrophosphohydrolase
B
177Escherichia coli O45:K1 (strain S88 / ExPEC)Mutation(s): 0 
Gene Names: rppH (nudH)
EC: 3.6.1.-
Find proteins for B7MLH6 (Escherichia coli O45:K1 (strain S88 / ExPEC))
Go to UniProtKB:  B7MLH6
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IOD
Query on IOD

Download SDF File 
Download CCD File 
A, B
IODIDE ION
I
XMBWDFGMSWQBCA-UHFFFAOYSA-M
 Ligand Interaction
CL
Query on CL

Download SDF File 
Download CCD File 
A, B
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.06 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.187 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 85.810α = 90.00
b = 85.810β = 90.00
c = 177.374γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
Cootmodel building
XDSdata scaling
PHENIXphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2018-04-11 
  • Released Date: 2018-05-23 
  • Deposition Author(s): Gao, A., Serganov, A.

Funding OrganizationLocationGrant Number
National Institutes of Health/National Human Genome Research InstituteUnited StatesR01GM112940
National Institutes of Health/National Human Genome Research InstituteUnited StatesP41 GM103403
National Institutes of Health/National Human Genome Research InstituteUnited StatesS10 RR029205
Department of Energy (United States)United StatesDE-AC02-06CH11357
Department of Energy (United States)United StatesKP1605010
Department of Energy (United States)United StatesKC0401040
National Institutes of Health/National Human Genome Research InstituteUnited StatesP41GM111244
Department of Energy (United States)United StatesDE-SC0012704
Department of Energy (United States)United StatesDE-SC0012704
National Institutes of Health/National Human Genome Research InstituteUnited StatesR01GM035769
National Institutes of Health/National Human Genome Research InstituteUnited StatesR01AI108889

Revision History 

  • Version 1.0: 2018-05-23
    Type: Initial release
  • Version 1.1: 2018-08-08
    Type: Data collection, Database references