Crystal Structure of apo acyl carrier protein from E. coli

Experimental Data Snapshot

  • Resolution: 1.10 Å
  • R-Value Free: 0.150 
  • R-Value Work: 0.133 
  • R-Value Observed: 0.134 

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This is version 1.3 of the entry. See complete history


Structure of apo acyl carrier protein and a proposal to engineer protein crystallization through metal ions.

Qiu, X.Janson, C.A.

(2004) Acta Crystallogr D Biol Crystallogr 60: 1545-1554

  • DOI: https://doi.org/10.1107/S0907444904015422
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    A topic of current interest is engineering surface mutations in order to improve the success rate of protein crystallization. This report explores the possibility of using metal-ion-mediated crystal-packing interactions to facilitate rational design. Escherichia coli apo acyl carrier protein was chosen as a test case because of its high content of negatively charged carboxylates suitable for metal binding with moderate affinity. The protein was successfully crystallized in the presence of zinc ions. The crystal structure was determined to 1.1 A resolution with MAD phasing using anomalous signals from the co-crystallized Zn(2+) ions. The case study suggested an integrated strategy for crystallization and structure solution of proteins via engineering surface Asp and Glu mutants, crystallizing them in the presence of metal ions such as Zn(2+) and solving the structures using anomalous signals.

  • Organizational Affiliation

    GlaxoSmithKline, King of Prussia, Pennsylvania 19406, USA. xiayang_qiu@groton.pfizer.com

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Acyl carrier protein77Escherichia coliMutation(s): 0 
Find proteins for P0A6A8 (Escherichia coli (strain K12))
Explore P0A6A8 
Go to UniProtKB:  P0A6A8
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0A6A8
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on IMD

Download Ideal Coordinates CCD File 
L [auth A]
M [auth A]
N [auth A]
O [auth A]
P [auth A]
L [auth A],
M [auth A],
N [auth A],
O [auth A],
P [auth A],
Q [auth A]
C3 H5 N2
Query on ZN

Download Ideal Coordinates CCD File 
B [auth A]
C [auth A]
D [auth A]
E [auth A]
F [auth A]
B [auth A],
C [auth A],
D [auth A],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A]
Experimental Data & Validation

Experimental Data

  • Resolution: 1.10 Å
  • R-Value Free: 0.150 
  • R-Value Work: 0.133 
  • R-Value Observed: 0.134 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 27.51α = 90
b = 41.26β = 90
c = 62.48γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-09-07
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2024-02-14
    Changes: Data collection, Database references, Derived calculations