1AXR

COOPERATIVITY BETWEEN HYDROGEN-BONDING AND CHARGE-DIPOLE INTERACTIONS IN THE INHIBITION OF BETA-GLYCOSIDASES BY AZOLOPYRIDINES: EVIDENCE FROM A STUDY WITH GLYCOGEN PHOSPHORYLASE B


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.203 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Cooperative interactions of the catalytic nucleophile and the catalytic acid in the inhibition of beta-glycosidases. Calculations and their validation by comparative kinetic and structural studies of the inhibition of glycogen phosphorylase b.

Heightman, T.D.Vasella, A.Tsitsanou, K.E.Zographos, S.E.Skamnaki, V.T.Oikonomakos, N.G.

(1998) HELV.CHIM.ACTA 81: 853-864


Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GLYCOGEN PHOSPHORYLASE
A
842Oryctolagus cuniculusMutation(s): 0 
Gene Names: PYGM
EC: 2.4.1.1
Find proteins for P00489 (Oryctolagus cuniculus)
Go to Gene View: PYGM
Go to UniProtKB:  P00489
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
A
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
HTP
Query on HTP

Download SDF File 
Download CCD File 
A
4,5,6-TRIHYDROXY-7-HYDROXYMETHYL-4,5,6,7-TETRAHYDRO-1H-[1,2,3]TRIAZOLO[1,5-A]PYRIDIN-8-YLIUM
C7 H12 N3 O4
QTNWFPNNMUCBLD-XZBKPIIZSA-O
 Ligand Interaction
PLP
Query on PLP

Download SDF File 
Download CCD File 
A
PYRIDOXAL-5'-PHOSPHATE
VITAMIN B6 Phosphate
C8 H10 N O6 P
NGVDGCNFYWLIFO-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
HTPKi: 540000 nM BINDINGMOAD
HTPKi: 540000 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.203 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 126.720α = 90.00
b = 126.720β = 90.00
c = 115.590γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
SCALEPACKdata scaling
DENZOdata reduction
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-01-28
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance