1JSW

NATIVE L-ASPARTATE AMMONIA LYASE

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.371 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.216 

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This is version 1.3 of the entry. See complete history. 


Literature

The structure of L-aspartate ammonia-lyase from Escherichia coli.

Shi, W., Dunbar, J., Jayasekera, M.M., Viola, R.E., Farber, G.K.

(1997) Biochemistry 36: 9136-9144

  • DOI: 10.1021/bi9704515
  • Primary Citation of Related Structures:  
    1JSW

  • PubMed Abstract: 

    • The X-ray crystal structure of l-aspartate ammonia-lyase has been determined to 2.8 A resolution. The enzyme contains three domains, and each domain is composed almost completely of alpha helices. The central domain is composed of five long helices. In the tetramer, these five helices form a 20-helix cluster ...

    The X-ray crystal structure of l-aspartate ammonia-lyase has been determined to 2.8 A resolution. The enzyme contains three domains, and each domain is composed almost completely of alpha helices. The central domain is composed of five long helices. In the tetramer, these five helices form a 20-helix cluster. Such clusters have also been seen in delta-crystallin and in fumarase. The active site of aspartase has been located in a region that contains side chains from three different subunits. The structure of the apoenzyme has made it possible to identify some of the residues that are involved in binding the substrate. These residues have been examined by site-directed mutagenesis, and their putative roles have been assigned [Jayasekera, M. M. K., Shi, W., Farber, G. K., & Viola, R. E. (1997) Biochemistry 36, 9145-9150].

    Related Citations: 
    • Crystallization and Preliminary X-Ray Studies of L-Aspartase from Escherichia Coli
      Shi, W., Kidd, R., Giorgianni, F., Schindler, J.F., Viola, R.E., Farber, G.K.
      (1993) J Mol Biol 234: 1248
    Organizational Affiliation: 

    Department of Biochemistry and Molecular Biology, 108 Althouse Laboratory, The Pennsylvania State University, University Park 16802, USA.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
L-ASPARTATE AMMONIA-LYASEA, B, C, D478Escherichia coli BMutation(s): 0 
EC: 4.3.1.1
UniProt
Find proteins for P0AC38 (Escherichia coli (strain K12))
Explore P0AC38 
Go to UniProtKB:  P0AC38
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0AC38
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BGC
Query on BGC
Download Ideal Coordinates CCD File 
E [auth A],
G [auth B]		beta-D-glucopyranose
C6 H12 O6
WQZGKKKJIJFFOK-VFUOTHLCSA-N		 Ligand Interaction
ACT
Query on ACT
Download Ideal Coordinates CCD File 
F [auth A]ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.371 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.216 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 153.5α = 90
b = 146.2β = 90
c = 103.2γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction
X-PLORphasing

Structure Validation

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Ligand Structure Quality Assessment 


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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1997-06-16
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Source and taxonomy, Version format compliance
  • Version 1.3: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Other, Structure summary