Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 13.31 kDa 
• Atom Count: 924 
• Modelled Residue Count: 117 
• Deposited Residue Count: 117 
• Unique protein chains: 1

1UW0

Solution structure of the zinc-finger domain from DNA ligase IIIa

• PDB DOI: 10.2210/pdb1UW0/pdb
• BMRB: 6035

• Classification: LIGASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2004-01-27 Released: 2004-08-05 
• Deposition Author(s): Kulczyk, A.W., Yang, J.-C., Neuhaus, D.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 28 
• Selection Criteria: LOW RESTRAINT VIOLATIONS 

Literature

Solution Structure and DNA Binding of the Zinc-Finger Domain from DNA Ligase Iiialpha

Kulczyk, A.W., Yang, J.-C., Neuhaus, D.

(2004) J Mol Biol 341: 723

• PubMed: 15288782 
• DOI: 10.1016/j.jmb.2004.06.035
• Primary Citation of Related Structures:  
  1UW0


• PubMed Abstract: 
  

DNA ligase IIIalpha carries out the final ligation step in the base excision repair (BER) and single strand break repair (SSBR) mechanisms of DNA repair. The enzyme recognises single-strand nicks and other damage features in double-stranded DNA, both through the catalytic domain and an N-terminal domain containing a single zinc finger. The latter is homologous to other zinc fingers that recognise damaged DNA, two in the N terminus of poly(adenosine-ribose)polymerase and three in the N terminus of the Arabidopsis thaliana nick-sensing DNA 3'-phosphoesterase. Here, we present the solution structure of the zinc-finger domain of human DNA ligase IIIalpha, the first structure of a finger from this group. It is related to that of the erythroid transcription factor GATA-1, but has an additional N-terminal beta-strand and C-terminal alpha-helix. Chemical shift mapping using a DNA ligand containing a single-stranded break showed that the DNA-binding surface of the DNA-ligase IIIalpha zinc finger is substantially different from that of GATA-1, consistent with the fact that the two proteins recognise very different features in the DNA. Likely implications for DNA binding are discussed.

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Organizational Affiliation: 

MRC Laboratory of Molecular Biology, Hills Road, Cambridge CB2 2QH, UK.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
DNA LIGASE III	A	117	Homo sapiens	Mutation(s): 0  Gene Names: LIG3 EC: 6.5.1.1
UniProt & NIH Common Fund Data Resources
Find proteins for P49916 (Homo sapiens) Explore P49916  Go to UniProtKB:  P49916
PHAROS:  P49916

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 28 
• Selection Criteria: LOW RESTRAINT VIOLATIONS 
• OLDERADO: 1UW0 Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2004-01-27 
• Released Date: 2004-08-05 
Deposition Author(s): Kulczyk, A.W., Yang, J.-C., Neuhaus, D.

Revision History  

• Version 1.0: 2004-08-05
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance