1A48

SAICAR SYNTHASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Observed: 0.153 

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

  • DOI: 10.1016/s0969-2126(98)00038-0
  • Primary Citation of Related Structures:  
    1A48

  • 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. Phosphoribosylaminoimidazolesuccinocarboxamide (SAICAR) synthase catalyses the seventh step out of ten in the biosynthesis of purine nucleotides ...

    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: 
    • [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
    • 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
    • De Novo Purine Nucleotide Biosynthesis
      Zalkin, H., Dixon, J.E.
      (1992) Prog Nucleic Acid Res Mol Biol 42: 259
    • 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
    • [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
    • [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

    Organizational Affiliation

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



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PHOSPHORIBOSYLAMINOIMIDAZOLE-SUCCINOCARBOXAMIDE SYNTHASEA306Saccharomyces cerevisiaeMutation(s): 0 
EC: 6.3.2.6
UniProt
Find proteins for P27616 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P27616 
Go to UniProtKB:  P27616
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download Ideal Coordinates CCD File 
B [auth A], C [auth A]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Observed: 0.153 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 62.6α = 90
b = 63.7β = 90
c = 81.2γ = 90
Software Package:
Software NamePurpose
ARP/wARPmodel building
PROLSQrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

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