9GAC

PRECURSOR OF THE T152C MUTANT GLYCOSYLASPARAGINASE FROM FLAVOBACTERIUM MENINGOSEPTICUM


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.232 
  • R-Value Observed: 0.232 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structural insights into the mechanism of intramolecular proteolysis.

Xu, Q.Buckley, D.Guan, C.Guo, H.C.

(1999) Cell 98: 651-661

  • DOI: 10.1016/s0092-8674(00)80052-5
  • Primary Citation of Related Structures:  
    9GAA, 9GAC, 9GAF

  • PubMed Abstract: 
  • A variety of proteins, including glycosylasparaginase, have recently been found to activate functions by self-catalyzed peptide bond rearrangements from single-chain precursors. Here we present the 1.9 A crystal structures of glycosylasparaginase precursors that are able to autoproteolyze via an N --> O acyl shift ...

    A variety of proteins, including glycosylasparaginase, have recently been found to activate functions by self-catalyzed peptide bond rearrangements from single-chain precursors. Here we present the 1.9 A crystal structures of glycosylasparaginase precursors that are able to autoproteolyze via an N --> O acyl shift. Several conserved residues are aligned around the scissile peptide bond that is in a highly strained trans peptide bond configuration. The structure illustrates how a nucleophilic side chain may attack the scissile peptide bond at the immediate upstream backbone carbonyl and provides an understanding of the structural basis for peptide bond cleavage via an N --> O or N --> S acyl shift that is used by various groups of intramolecular autoprocessing proteins.


    Organizational Affiliation

    Department of Biophysics, Boston University School of Medicine, Massachusetts 02118-2526, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (GLYCOSYLASPARAGINASE)A,
B [auth C]
295Elizabethkingia meningosepticaMutation(s): 1 
EC: 3.5.1.26
UniProt
Find proteins for Q47898 (Elizabethkingia miricola)
Explore Q47898 
Go to UniProtKB:  Q47898
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ47898
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GLY
Query on GLY

Download Ideal Coordinates CCD File 
C [auth A],
D [auth C]
GLYCINE
C2 H5 N O2
DHMQDGOQFOQNFH-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.232 
  • R-Value Observed: 0.232 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.3α = 80.8
b = 52.8β = 90.5
c = 62.4γ = 105.1
Software Package:
Software NamePurpose
XTALVIEWrefinement
MLPHAREphasing
DMmodel building
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
DMphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-06-16
    Type: Initial release
  • Version 1.1: 2007-10-16
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2018-03-14
    Changes: Database references