3MDA

DNA polymerase lambda in complex with araC


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.031 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.197 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Interaction between DNA Polymerase lambda and anticancer nucleoside analogs.

Garcia-Diaz, M.Murray, M.S.Kunkel, T.A.Chou, K.M.

(2010) J.Biol.Chem. 285: 16874-16879

  • DOI: 10.1074/jbc.M109.094391
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The anticancer activity of cytarabine (AraC) and gemcitabine (dFdC) is thought to result from chain termination after incorporation into DNA. To investigate their incorporation into DNA at atomic level resolution, we present crystal structures of hum ...

    The anticancer activity of cytarabine (AraC) and gemcitabine (dFdC) is thought to result from chain termination after incorporation into DNA. To investigate their incorporation into DNA at atomic level resolution, we present crystal structures of human DNA polymerase lambda (Pol lambda) bound to gapped DNA and containing either AraC or dFdC paired opposite template dG. These structures reveal that AraC and dFdC can bind within the nascent base pair binding pocket of Pol lambda. Although the conformation of the ribose of AraCTP is similar to that of normal dCTP, the conformation of dFdCTP is significantly different. Consistent with these structures, Pol lambda efficiently incorporates AraCTP but not dFdCTP. The data are consistent with the possibility that Pol lambda could modulate the cytotoxic effect of AraC.


    Organizational Affiliation

    Laboratory of Structural Biology and Laboratory of Molecular Genetics, Department of Health and Human Services, NIEHS, National Institutes of Health, Research Triangle Park, North Carolina 27709, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA polymerase lambda
A
325Homo sapiensMutation(s): 0 
Gene Names: POLL
EC: 2.7.7.7, 4.2.99.-
Find proteins for Q9UGP5 (Homo sapiens)
Go to Gene View: POLL
Go to UniProtKB:  Q9UGP5
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (5'-D(*CP*GP*GP*CP*GP*GP*TP*AP*CP*TP*G)-3')T11N/A
Entity ID: 3
MoleculeChainsLengthOrganism
DNA (5'-D(*CP*AP*GP*TP*AP*CP*(CAR))-3')P7N/A
Entity ID: 4
MoleculeChainsLengthOrganism
DNA (5'-D(P*GP*CP*CP*G)-3')D4N/A
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

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Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

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Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
PPV
Query on PPV

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Download CCD File 
A
PYROPHOSPHATE
H4 O7 P2
XPPKVPWEQAFLFU-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CAR
Query on CAR
P
RNA LINKINGC9 H14 N3 O8 PDC
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.031 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.197 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 56.068α = 90.00
b = 62.637β = 90.00
c = 140.163γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
PDB_EXTRACTdata extraction
PHENIXrefinement
SCALEPACKdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-04-28
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-11-08
    Type: Refinement description