2QJO

crystal structure of a bifunctional NMN adenylyltransferase/ADP ribose pyrophosphatase (NadM) complexed with ADPRP and NAD from Synechocystis sp.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.196 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Bifunctional NMN Adenylyltransferase/ADP-Ribose Pyrophosphatase: Structure and Function in Bacterial NAD Metabolism.

Huang, N.Sorci, L.Zhang, X.Brautigam, C.A.Li, X.Raffaelli, N.Magni, G.Grishin, N.V.Osterman, A.L.Zhang, H.

(2008) Structure 16: 196-209

  • DOI: 10.1016/j.str.2007.11.017
  • Primary Citation of Related Structures:  
    2QJO, 2QJT, 2R5W

  • PubMed Abstract: 
  • Bacterial NadM-Nudix is a bifunctional enzyme containing a nicotinamide mononucleotide (NMN) adenylyltransferase and an ADP-ribose (ADPR) pyrophosphatase domain. While most members of this enzyme family, such as that from a model cyanobacterium Synec ...

    Bacterial NadM-Nudix is a bifunctional enzyme containing a nicotinamide mononucleotide (NMN) adenylyltransferase and an ADP-ribose (ADPR) pyrophosphatase domain. While most members of this enzyme family, such as that from a model cyanobacterium Synechocystis sp., are involved primarily in nicotinamide adenine dinucleotide (NAD) salvage/recycling pathways, its close homolog in a category-A biodefense pathogen, Francisella tularensis, likely plays a central role in a recently discovered novel pathway of NAD de novo synthesis. The crystal structures of NadM-Nudix from both species, including their complexes with various ligands and catalytic metal ions, revealed detailed configurations of the substrate binding and catalytic sites in both domains. The structure of the N-terminal NadM domain may be exploited for designing new antitularemia therapeutics. The ADPR binding site in the C-terminal Nudix domain is substantially different from that of Escherichia coli ADPR pyrophosphatase, and is more similar to human NUDT9. The latter observation provided new insights into the ligand binding mode of ADPR-gated Ca2+ channel TRPM2.


    Organizational Affiliation

    Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Bifunctional NMN adenylyltransferase/Nudix hydrolaseABC341Synechocystis sp. PCC 6803Mutation(s): 0 
Gene Names: slr0787
EC: 2.7.7.1 (PDB Primary Data), 3.6.1 (PDB Primary Data)
Find proteins for Q55928 (Synechocystis sp. (strain PCC 6803 / Kazusa))
Explore Q55928 
Go to UniProtKB:  Q55928
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAD
Query on NAD

Download CCD File 
A, B, C
NICOTINAMIDE-ADENINE-DINUCLEOTIDE
C21 H27 N7 O14 P2
BAWFJGJZGIEFAR-NNYOXOHSSA-N
 Ligand Interaction
APR
Query on APR

Download CCD File 
A, B, C
ADENOSINE-5-DIPHOSPHORIBOSE
C15 H23 N5 O14 P2
SRNWOUGRCWSEMX-KEOHHSTQSA-N
 Ligand Interaction
POP
Query on POP

Download CCD File 
A, B, C
PYROPHOSPHATE 2-
H2 O7 P2
XPPKVPWEQAFLFU-UHFFFAOYSA-L
 Ligand Interaction
SO4
Query on SO4

Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.196 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 201.54α = 90
b = 201.54β = 90
c = 98.695γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
HKL-3000data collection
HKL-2000data reduction
HKL-2000data scaling
SHELXCDphasing
SHELXEmodel building

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-03-11
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Derived calculations, Source and taxonomy, Version format compliance
  • Version 1.2: 2017-10-18
    Changes: Refinement description