1HYB

CRYSTAL STRUCTURE OF AN ACTIVE SITE MUTANT OF METHANOBACTERIUM THERMOAUTOTROPHICUM NICOTINAMIDE MONONUCLEOTIDE ADENYLYLTRANSFERASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.237 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Insights into ligand binding and catalysis of a central step in NAD+ synthesis: structures of Methanobacterium thermoautotrophicum NMN adenylyltransferase complexes.

Saridakis, V.Christendat, D.Kimber, M.S.Dharamsi, A.Edwards, A.M.Pai, E.F.

(2001) J.Biol.Chem. 276: 7225-7232

  • DOI: 10.1074/jbc.M008810200
  • Primary Citation of Related Structures:  1EJ2

  • PubMed Abstract: 
  • Nicotinamide mononucleotide adenylyltransferase (NMNATase) catalyzes the linking of NMN(+) or NaMN(+) with ATP, which in all organisms is one of the common step in the synthesis of the ubiquitous coenzyme NAD(+), via both de novo and salvage biosynth ...

    Nicotinamide mononucleotide adenylyltransferase (NMNATase) catalyzes the linking of NMN(+) or NaMN(+) with ATP, which in all organisms is one of the common step in the synthesis of the ubiquitous coenzyme NAD(+), via both de novo and salvage biosynthetic pathways. The structure of Methanobacterium thermoautotrophicum NMNATase determined using multiwavelength anomalous dispersion phasing revealed a nucleotide-binding fold common to nucleotidyltransferase proteins. An NAD(+) molecule and a sulfate ion were bound in the active site allowing the identification of residues involved in product binding. In addition, the role of the conserved (16)HXGH(19) active site motif in catalysis was probed by mutagenic, enzymatic and crystallographic techniques, including the characterization of an NMN(+)/SO4(2-) complex of mutant H19A NMNATase.


    Organizational Affiliation

    Division of Molecular and Structural Biology, Ontario Cancer Institute, 610 University Avenue Toronto M5G 2M9, Ontario, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NICOTINAMIDE MONONUCLEOTIDE ADENYLYLTRANSFERASE
A
181Methanothermobacter thermautotrophicus (strain ATCC 29096 / DSM 1053 / JCM 10044 / NBRC 100330 / Delta H)EC: 2.7.7.1
Find proteins for O26253 (Methanothermobacter thermautotrophicus (strain ATCC 29096 / DSM 1053 / JCM 10044 / NBRC 100330 / Delta H))
Go to UniProtKB:  O26253
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
NMN
Query on NMN

Download SDF File 
Download CCD File 
A
BETA-NICOTINAMIDE RIBOSE MONOPHOSPHATE
NICOTINAMIDE MONONUCLEOTIDE
C11 H16 N2 O8 P
DAYLJWODMCOQEW-TURQNECASA-O
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.237 
  • Space Group: P 63 2 2
Unit Cell:
Length (Å)Angle (°)
a = 89.778α = 90.00
b = 89.778β = 90.00
c = 108.946γ = 120.00
Software Package:
Software NamePurpose
CNSphasing
SCALEPACKdata scaling
DENZOdata reduction
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-03-14
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance