1TAE | pdb_00001tae

Structural rearrangement accompanying NAD+ synthesis within a bacterial DNA ligase crystal


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 
    0.263 (Depositor), 0.259 (DCC) 
  • R-Value Work: 
    0.202 (Depositor), 0.200 (DCC) 
  • R-Value Observed: 
    0.204 (Depositor) 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history

Literature

Structural rearrangement accompanying NAD+ synthesis within a bacterial DNA ligase crystal.

Gajiwala, K.S.Pinko, C.

(2004) Structure 12: 1449-1459

  • DOI: https://doi.org/10.1016/j.str.2004.05.017
  • Primary Citation Related Structures: 
    1TA8, 1TAE

  • PubMed Abstract: 

    DNA ligase is an enzyme important for DNA repair and replication. Eukaryotic genomes encode ligases requiring ATP as the cofactor; bacterial genomes encode NAD(+)-dependent ligase. This difference in substrate specificities and the essentiality of NAD(+)-dependent ligase for bacterial survival make NAD(+)-dependent ligase a good target for designing highly specific anti-infectives. Any such structure-guided effort would require the knowledge of the precise mechanism of NAD+ recognition by the enzyme. We report the principles of NAD+ recognition by presenting the synthesis of NAD+ from nicotinamide mononucleotide (NMN) and AMP, catalyzed by Enterococcus faecalis ligase within the crystal lattice. Unprecedented conformational change, required to reorient the two subdomains of the protein for the condensation to occur and to recognize NAD+, is captured in two structures obtained using the same protein crystal. Structural data and sequence analysis presented here confirms and extends prior functional studies of the ligase adenylation reaction.


  • Organizational Affiliation
    • Quorex Pharmaceuticals, 1890 Rutherford Road, Suite 200, Carlsbad, California 92008, USA. ketang@quorex.com

Macromolecule Content 

  • Total Structure Weight: 157.14 kDa 
  • Atom Count: 10,774 
  • Modeled Residue Count: 1,284 
  • Deposited Residue Count: 1,328 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
DNA ligase, NAD-dependent
A, B, C, D
332Enterococcus faecalis V583Mutation(s): 0 
Gene Names: ligA
EC: 6.5.1.2
UniProt
Find proteins for Q837V6 (Enterococcus faecalis (strain ATCC 700802 / V583))
Explore Q837V6 
Go to UniProtKB:  Q837V6
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ837V6
Sequence Annotations
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Reference Sequence

Small Molecules

Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
NAD

Query on NAD



Download:Ideal Coordinates CCD File
HA [auth D],
K [auth A],
T [auth B],
Z [auth C]
NICOTINAMIDE-ADENINE-DINUCLEOTIDE
C21 H27 N7 O14 P2
BAWFJGJZGIEFAR-NNYOXOHSSA-N
SO4

Query on SO4



Download:Ideal Coordinates CCD File
AA [auth D]
BA [auth D]
CA [auth D]
DA [auth D]
E [auth A]
AA [auth D],
BA [auth D],
CA [auth D],
DA [auth D],
E [auth A],
EA [auth D],
F [auth A],
FA [auth D],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
L [auth B],
M [auth B],
N [auth B],
O [auth B],
P [auth B],
Q [auth B],
R [auth B],
U [auth C],
V [auth C],
W [auth C],
X [auth C],
Y [auth C]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
NA

Query on NA



Download:Ideal Coordinates CCD File
GA [auth D],
S [auth B]
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free:  0.263 (Depositor), 0.259 (DCC) 
  • R-Value Work:  0.202 (Depositor), 0.200 (DCC) 
  • R-Value Observed: 0.204 (Depositor) 
Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 62.296α = 90
b = 135.179β = 102.29
c = 115.797γ = 90
Software Package:
Software NamePurpose
CNXrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNXphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-11-23
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Source and taxonomy, Version format compliance
  • Version 1.3: 2023-08-23
    Changes: Data collection, Database references, Derived calculations, Refinement description