2B1G

Crystal structures of transition state analogue inhibitors of inosine monophosphate cyclohydrolase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.248
  • R-Value Work: 0.199

Literature

Macromolecules
Sequence Display for 2B1G

Classification: TRANSFERASE HYDROLASE

Total Structure Weight: 258977.70

Macromolecule Entities
Molecule Chains Length Organism Details
Bifunctional purine biosynthesis protein PURH A, B, C, D 593 Gallus gallus EC#: 2.1.2.3 IUBMB 3.5.4.10 IUBMB
Details: Includes Phosphoribosylaminoimidazolecarboxamide formyltransferase (AICAR transformylase), IMP cyclohydrolase (Inosinicase, IMP synthetase, ATIC)
Gene Name(s): ATIC Gene View PURH
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 3 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
13A
Query on 13A

A, D 7-(3,4-DIHYDROXY-5R-HYDROXYMETHYLTETRAHYDROFURAN- 2-YL)-2,2-DIOXO-1,2R,3R,7-TETRAHYDRO-2L6- IMIDAZO[4,5-C][1,2,6]THIADIAZIN-4S-ONE
C9 H12 N4 O7 S
IHLOTZVBEUFDMD-UUOKFMHZSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
PO4
Query on PO4

A, C PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
K
Query on K

A, B, C, D POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
13A N/A in BindingDB
Ki: 230 nM  BindingMOAD
Ki: 230 nM  PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.248
  • R-Value Work: 0.199
  • Space Group: P 1

Unit Cell:

Length (Å) Angle (°)
a = 57.20 α = 80.80
b = 62.00 β = 81.50
c = 196.60 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2005-09-15
  • Released Date: 2006-11-21
  • Deposition author(s): Xu, L., Chong, Y., Hwang, I., D'Onofrio, A., Amore, K., Beardsley, G.P., Li, C., Olson, A.J., Boger, D.L., Wilson, I.A.

Revision History

  • Version 1_0: 2006-11-21

    Type: Initial release

  • Version 1_1: 2008-04-01

    Type: Version format compliance

  • Version 1_2: 2011-07-13

    Type: Derived calculations, Version format compliance

  • Version 1_3: 2017-10-11

    Type: Refinement description