2CG5

Structure of aminoadipate-semialdehyde dehydrogenase- phosphopantetheinyl transferase in complex with cytosolic acyl carrier protein and coenzyme A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.192 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Mechanism and Substrate Recognition of Human Holo Acp Synthase.

Bunkoczi, G.Pasta, S.Joshi, A.Wu, X.Kavanagh, K.L.Smith, S.Oppermann, U.

(2007) Chem.Biol. 14: 1243

  • DOI: 10.1016/j.chembiol.2007.10.013
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Mammals utilize a single phosphopantetheinyl transferase for the posttranslational modification of at least three different apoproteins: the carrier protein components of cytosolic and mitochondrial fatty acid synthases and the aminoadipate semialdeh ...

    Mammals utilize a single phosphopantetheinyl transferase for the posttranslational modification of at least three different apoproteins: the carrier protein components of cytosolic and mitochondrial fatty acid synthases and the aminoadipate semialdehyde reductase involved in lysine degradation. We determined the crystal structure of the human phosphopantetheinyl transferase, a eukaryotic phosphopantetheinyl transferase characterized, complexed with CoA and Mg(2+), and in ternary complex with CoA and ACP. The involvement of key residues in ligand binding and catalysis was confirmed by mutagenesis and kinetic analysis. Human phosphopantetheinyl transferase exhibits an alpha/beta fold and 2-fold pseudosymmetry similar to the Sfp phosphopantetheinyl transferase from Bacillus subtilis. Although the bound ACP exhibits a typical four-helix structure, its binding is unusual in that it is facilitated predominantly by hydrophobic interactions. A detailed mechanism is proposed describing the substrate binding and catalytic process.


    Organizational Affiliation

    Structural Genomics Consortium, University of Oxford, Oxford OX3 7LD, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
L-AMINOADIPATE-SEMIALDEHYDE DEHYDROGENASE-PHOSPHOPANTETHEINYL TRANSFERASE
A
319Homo sapiensMutation(s): 0 
Gene Names: AASDHPPT
EC: 2.7.8.-
Find proteins for Q9NRN7 (Homo sapiens)
Go to Gene View: AASDHPPT
Go to UniProtKB:  Q9NRN7
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
FATTY ACID SYNTHASE
B
91Homo sapiensMutation(s): 1 
Gene Names: FASN (FAS)
EC: 2.3.1.85
Find proteins for P49327 (Homo sapiens)
Go to Gene View: FASN
Go to UniProtKB:  P49327
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
A
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
COA
Query on COA

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Download CCD File 
A
COENZYME A
C21 H36 N7 O16 P3 S
RGJOEKWQDUBAIZ-IBOSZNHHSA-N
 Ligand Interaction
MG
Query on MG

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Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
NI
Query on NI

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Download CCD File 
A
NICKEL (II) ION
Ni
VEQPNABPJHWNSG-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.192 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 69.361α = 90.00
b = 69.361β = 90.00
c = 184.715γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-03-01
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Refinement description, Version format compliance
  • Version 1.2: 2018-01-24
    Type: Structure summary
  • Version 1.3: 2018-04-04
    Type: Data collection