3VPC

ArgX from Sulfolobus tokodaii complexed with ADP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.87 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.198 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Lysine and arginine biosyntheses mediated by a common carrier protein in Sulfolobus.

Ouchi, T.Tomita, T.Horie, A.Yoshida, A.Takahashi, K.Nishida, H.Lassak, K.Taka, H.Mineki, R.Fujimura, T.Kosono, S.Nishiyama, C.Masui, R.Kuramitsu, S.Albers, S.V.Kuzuyama, T.Nishiyama, M.

(2013) Nat.Chem.Biol. 9: 277-283

  • DOI: 10.1038/nchembio.1200
  • Primary Citation of Related Structures:  3VPB, 3VPD

  • PubMed Abstract: 
  • LysW has been identified as a carrier protein in the lysine biosynthetic pathway that is active through the conversion of α-aminoadipate (AAA) to lysine. In this study, we found that the hyperthermophilic archaeon, Sulfolobus acidocaldarius, not only ...

    LysW has been identified as a carrier protein in the lysine biosynthetic pathway that is active through the conversion of α-aminoadipate (AAA) to lysine. In this study, we found that the hyperthermophilic archaeon, Sulfolobus acidocaldarius, not only biosynthesizes lysine through LysW-mediated protection of AAA but also uses LysW to protect the amino group of glutamate in arginine biosynthesis. In this archaeon, after LysW modification, AAA and glutamate are converted to lysine and ornithine, respectively, by a single set of enzymes with dual functions. The crystal structure of ArgX, the enzyme responsible for modification and protection of the amino moiety of glutamate with LysW, was determined in complex with LysW. Structural comparison and enzymatic characterization using Sulfolobus LysX, Sulfolobus ArgX and Thermus LysX identify the amino acid motif responsible for substrate discrimination between AAA and glutamate. Phylogenetic analysis reveals that gene duplication events at different stages of evolution led to ArgX and LysX.


    Organizational Affiliation

    Biotechnology Research Center, The University of Tokyo, Tokyo, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Putative acetylornithine deacetylase
A, B, C, D
282Sulfolobus tokodaii (strain DSM 16993 / JCM 10545 / NBRC 100140 / 7)Gene Names: argE (argX)
EC: 6.3.2.-
Find proteins for Q970U6 (Sulfolobus tokodaii (strain DSM 16993 / JCM 10545 / NBRC 100140 / 7))
Go to UniProtKB:  Q970U6
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADP
Query on ADP

Download SDF File 
Download CCD File 
A, B, C, D
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.87 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.198 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 63.266α = 87.77
b = 67.845β = 75.29
c = 80.032γ = 67.03
Software Package:
Software NamePurpose
PHASERphasing
HKL-2000data scaling
HKL-2000data collection
REFMACrefinement
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-02-27
    Type: Initial release
  • Version 1.1: 2013-07-31
    Type: Database references