1A48

SAICAR SYNTHASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The structure of SAICAR synthase: an enzyme in the de novo pathway of purine nucleotide biosynthesis.

Levdikov, V.M.Barynin, V.V.Grebenko, A.I.Melik-Adamyan, W.R.Lamzin, V.S.Wilson, K.S.

(1998) Structure 6: 363-376

  • Also Cited By: 1OBG, 1OBD

  • PubMed Abstract: 
  • The biosynthesis of key metabolic components is of major interest to biologists. Studies of de novo purine synthesis are aimed at obtaining a deeper understanding of this central pathway and the development of effective chemotherapeutic agents. Phosp ...

    The biosynthesis of key metabolic components is of major interest to biologists. Studies of de novo purine synthesis are aimed at obtaining a deeper understanding of this central pathway and the development of effective chemotherapeutic agents. Phosphoribosylaminoimidazolesuccinocarboxamide (SAICAR) synthase catalyses the seventh step out of ten in the biosynthesis of purine nucleotides. To date, only one structure of an enzyme involved in purine biosynthesis has been reported: adenylosuccinate synthetase, which catalyses the first committed step in the synthesis of AMP from IMP.


    Related Citations: 
    • [Nucleotide Sequence of the Ade 1 Gene of the Yeast Saccharomyces Cerevisiae] (Russian)
      Miasnikov, A.N.,Plavnik, Iu.A.,Sasnauskas, K.V.,Gedminene, G.K.,Ianulaitis, A.A.
      (1986) Bioorg.Khim. 12: 555
    • De Novo Purine Nucleotide Biosynthesis
      Zalkin, H.,Dixon, J.E.
      (1992) Prog.Nucleic Acid Res.Mol.Biol. 42: 259
    • Crystallization and Preliminary X-Ray Investigation of Phosphoribosylaminoimidazolesuccinocarboxamide Synthase from the Yeast Saccharomyces Cerevisiae
      Grebenko, A.I.,Levdikov, V.M.,Barynin, V.V.,Melik-Adamyan, W.R.,Myasnikov, A.N.
      (1992) J.Mol.Biol. 228: 298
    • [Isolation and Properties of Phosphoribosyl-Aminoimidazole-Succinocarboxyamide-Synthetase from Saccharomyces Cerevisiae Yeasts] (Russian)
      Ostanin, K.V.,Alenin, V.V.,Domkin, V.D.,Smirnov, M.N.
      (1989) Biokhimiia 54: 1265
    • [Substrate Specificity of Phosphoribosyl-Aminoimidazole-Succinocarboxyamide Synthetase (Saicar-Synthetase) from Saccharomyces Cerevisiae Yeast] (Russian)
      Alenin, V.V.,Ostanin, K.V.,Kostikova, T.R.,Domkin, V.D.,Zubova, V.A.,Smirnov, M.N.
      (1992) Biokhimiia 57: 845
    • The Saccharomyces Cerevisiae Ade1 Gene: Structure, Overexpression and Possible Regulation by General Amino Acid Control
      Myasnikov, A.N.,Sasnauskas, K.V.,Janulaitis, A.A.,Smirnov, M.N.
      (1991) Gene 109: 143


    Organizational Affiliation

    Institute of Crystallography, Russian Academy of Sciences, Leninsky, Moscow. Vladimir@sunchem.chem.uga.edu




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PHOSPHORIBOSYLAMINOIMIDAZOLE-SUCCINOCARBOXAMIDE SYNTHASE
A
306Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: ADE1
EC: 6.3.2.6
Find proteins for P27616 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P27616
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
ACE
Query on ACE
A
NON-POLYMERC2 H4 O

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 62.600α = 90.00
b = 63.700β = 90.00
c = 81.200γ = 90.00
Software Package:
Software NamePurpose
PROLSQrefinement
DENZOdata reduction
ARP/wARPmodel building
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-03-30
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance