4OSX

STRUCTURE of UNCLEAVED GLYCINE-BOUND HUMAN L-ASPARAGINASE PROTEIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.167 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Free Glycine Accelerates the Autoproteolytic Activation of Human Asparaginase.

Su, Y.Karamitros, C.S.Nomme, J.Mcsorley, T.Konrad, M.Lavie, A.

(2013) Chem.Biol. 20: 533

  • DOI: 10.1016/j.chembiol.2013.03.006
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Human asparaginase 3 (hASNase3), which belongs to the N-terminal nucleophile hydrolase superfamily, is synthesized as a single polypeptide that is devoid of asparaginase activity. Intramolecular autoproteolytic processing releases the amino group of ...

    Human asparaginase 3 (hASNase3), which belongs to the N-terminal nucleophile hydrolase superfamily, is synthesized as a single polypeptide that is devoid of asparaginase activity. Intramolecular autoproteolytic processing releases the amino group of Thr168, a moiety required for catalyzing asparagine hydrolysis. Recombinant hASNase3 purifies as the uncleaved, asparaginase-inactive form and undergoes self-cleavage to the active form at a very slow rate. Here, we show that the free amino acid glycine selectively acts to accelerate hASNase3 cleavage both in vitro and in human cells. Other small amino acids such as alanine, serine, or the substrate asparagine are not capable of promoting autoproteolysis. Crystal structures of hASNase3 in complex with glycine in the uncleaved and cleaved enzyme states reveal the mechanism of glycine-accelerated posttranslational processing and explain why no other amino acid can substitute for glycine.


    Organizational Affiliation

    Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, IL 60607, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Isoaspartyl peptidase/L-asparaginase
A, B
309Homo sapiensMutation(s): 0 
Gene Names: ASRGL1 (ALP, CRASH)
EC: 3.4.19.5, 3.5.1.1
Find proteins for Q7L266 (Homo sapiens)
Go to Gene View: ASRGL1
Go to UniProtKB:  Q7L266
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GLY
Query on GLY

Download SDF File 
Download CCD File 
A, B
GLYCINE
C2 H5 N O2
DHMQDGOQFOQNFH-UHFFFAOYSA-N
 Ligand Interaction
NA
Query on NA

Download SDF File 
Download CCD File 
A, B
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.167 
  • Space Group: P 65
Unit Cell:
Length (Å)Angle (°)
a = 59.940α = 90.00
b = 59.940β = 90.00
c = 301.100γ = 120.00
Software Package:
Software NamePurpose
CrystalCleardata collection
MOLREPphasing
XDSdata reduction
REFMACrefinement
XDSdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2014-02-13 
  • Released Date: 2014-03-05 
  • Deposition Author(s): Nomme, J., Lavie, A.
  • This entry supersedes: 4HLO

Revision History 

  • Version 1.0: 2014-03-05
    Type: Initial release