2ABJ

Crystal structure of human branched chain amino acid transaminase in a complex with an inhibitor, C16H10N2O4F3SCl, and pyridoxal 5' phosphate.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.205 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

The design and synthesis of human branched-chain amino acid aminotransferase inhibitors for treatment of neurodegenerative diseases.

Hu, L.Y.Boxer, P.A.Kesten, S.R.Lei, H.J.Wustrow, D.J.Moreland, D.W.Zhang, L.Ahn, K.Ryder, T.R.Liu, X.Rubin, J.R.Fahnoe, K.Carroll, R.T.Dutta, S.Fahnoe, D.C.Probert, A.W.Roof, R.L.Rafferty, M.F.Kostlan, C.R.Scholten, J.D.Hood, M.Ren, X.D.Schielke, G.P.Su, T.Z.Taylor, C.P.Mistry, A.McConnell, P.Hasemann, C.Ohren, J.

(2006) Bioorg.Med.Chem.Lett. 16: 2337-2340

  • DOI: 10.1016/j.bmcl.2005.07.058

  • PubMed Abstract: 
  • The inhibition of the cytosolic isoenzyme BCAT that is expressed specifically in neuronal tissue is likely to be useful for the treatment of neurodegenerative and other neurological disorders where glutamatergic mechanisms are implicated. Compound 2 ...

    The inhibition of the cytosolic isoenzyme BCAT that is expressed specifically in neuronal tissue is likely to be useful for the treatment of neurodegenerative and other neurological disorders where glutamatergic mechanisms are implicated. Compound 2 exhibited an IC50 of 0.8 microM in the hBCATc assays; it is an active and selective inhibitor. Inhibitor 2 also blocked calcium influx into neuronal cells following inhibition of glutamate uptake, and demonstrated neuroprotective efficacy in vivo. SAR, pharmacology, and the crystal structure of hBCATc with inhibitor 2 are described.


    Organizational Affiliation

    Pfizer Global Research and Development, Ann Arbor, MI, USA. Lain-Yen.Hu@pfizer.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Branched-chain-amino-acid aminotransferase, cytosolic
A, D, G, J
366Homo sapiensMutation(s): 0 
Gene Names: BCAT1 (BCT1, ECA39)
EC: 2.6.1.42
Find proteins for P54687 (Homo sapiens)
Go to Gene View: BCAT1
Go to UniProtKB:  P54687
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CBC
Query on CBC

Download SDF File 
Download CCD File 
A, D, G, J
N'-(5-CHLOROBENZOFURAN-2-CARBONYL)-2-(TRIFLUOROMETHYL)BENZENESULFONOHYDRAZIDE
C16 H10 Cl F3 N2 O4 S
ZLQBZYKAQQWOTK-UHFFFAOYSA-N
 Ligand Interaction
PLP
Query on PLP

Download SDF File 
Download CCD File 
A, D, G, J
PYRIDOXAL-5'-PHOSPHATE
VITAMIN B6 Phosphate
C8 H10 N O6 P
NGVDGCNFYWLIFO-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
CBCIC50: 230 nM (98) BINDINGDB
CBCIC50: 800 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.205 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 110.327α = 90.00
b = 114.517β = 90.00
c = 148.869γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-06-27
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance
  • Version 1.3: 2017-10-11
    Type: Refinement description