3JZ4

Crystal structure of E. coli NADP dependent enzyme


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.168 
  • R-Value Observed: 0.170 

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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

The X-ray crystal structure of Escherichia coli succinic semialdehyde dehydrogenase; structural insights into NADP+/enzyme interactions.

Langendorf, C.G.Key, T.L.Fenalti, G.Kan, W.T.Buckle, A.M.Caradoc-Davies, T.Tuck, K.L.Law, R.H.Whisstock, J.C.

(2010) PLoS One 5: e9280-e9280

  • DOI: 10.1371/journal.pone.0009280
  • Primary Citation of Related Structures:  
    3JZ4

  • PubMed Abstract: 
  • In mammals succinic semialdehyde dehydrogenase (SSADH) plays an essential role in the metabolism of the inhibitory neurotransmitter gamma-aminobutyric acid (GABA) to succinic acid (SA). Deficiency of SSADH in humans results in elevated levels of GABA and gamma-Hydroxybutyric acid (GHB), which leads to psychomotor retardation, muscular hypotonia, non-progressive ataxia and seizures ...

    In mammals succinic semialdehyde dehydrogenase (SSADH) plays an essential role in the metabolism of the inhibitory neurotransmitter gamma-aminobutyric acid (GABA) to succinic acid (SA). Deficiency of SSADH in humans results in elevated levels of GABA and gamma-Hydroxybutyric acid (GHB), which leads to psychomotor retardation, muscular hypotonia, non-progressive ataxia and seizures. In Escherichia coli, two genetically distinct forms of SSADHs had been described that are essential for preventing accumulation of toxic levels of succinic semialdehyde (SSA) in cells.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Monash University, Clayton Campus, Melbourne, Victoria, Australia.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Succinate-semialdehyde dehydrogenase [NADP+]A, B, C, D481Escherichia coliMutation(s): 0 
Gene Names: b2661gabDJW2636NA
EC: 1.2.1.16 (PDB Primary Data), 1.2.1.79 (UniProt), 1.2.1 (UniProt)
UniProt
Find proteins for P25526 (Escherichia coli (strain K12))
Explore P25526 
Go to UniProtKB:  P25526
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAP (Subject of Investigation/LOI)
Query on NAP

Download Ideal Coordinates CCD File 
E [auth A], F [auth B], G [auth C], H [auth D]NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
C21 H28 N7 O17 P3
XJLXINKUBYWONI-NNYOXOHSSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.168 
  • R-Value Observed: 0.170 
  • Space Group: P 4 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 151.885α = 90
b = 151.885β = 90
c = 165.772γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-03-16
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance