ISDA

Deposition Date 2021-03-19

Release Date 2022-11-02

Last Version Date 2024-01-31

Entry Detail

PDB ID:

7NXO

Keywords:

TRANSFERASE

Title:

CRYSTAL STRUCTURE OF HUMAN CYTOSOLIC BRANCHED-CHAIN AMINOTRANSFERASE (BCAT1) IN COMPLEX WITH PLP AND SMALL MOLECULE INHIBITOR COMPOUND 24(5-F)

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli BL21(DE3)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.71 Å

R-Value Free:

0.21

R-Value Work:

0.18

R-Value Observed:

0.19

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Branched-chain-amino-acid aminotransferase, cytosolic
Gene (Uniprot):BCAT1
Mutations:Ser379Arg, engineered
Chain IDs:A, B
Chain Length:389
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:P54687 Pfam ID:PF01063 EC:2.6.1.42

Ligand Molecules

GOL

PLP

UU8

Primary Citation

BAY-069, a Novel (Trifluoromethyl)pyrimidinedione-Based BCAT1/2 Inhibitor and Chemical Probe.

Gunther, J, Hillig, R.C, Zimmermann, K, Kaulfuss, S, Lemos, C, Nguyen, D, Rehwinkel, H, Habgood, M, Lechner, C, Neuhaus, R, Ganzer, U, Drewes, M, Chai, J, Bouche, L.Show

J.Med.Chem. 65 14366 14390 (2022)

PMID: 36261130 DOI: 10.1021/acs.jmedchem.2c00441

Abstact

The branched-chain amino acid transaminases (BCATs) are enzymes that catalyze the first reaction of catabolism of the essential branched-chain amino acids to branched-chain keto acids to form glutamate. They are known to play a key role in different cancer types. Here, we report a new structural class of BCAT1/2 inhibitors, (trifluoromethyl)pyrimidinediones, identified by a high-throughput screening campaign and subsequent optimization guided by a series of X-ray crystal structures. Our potent dual BCAT1/2 inhibitor BAY-069 displays high cellular activity and very good selectivity. Along with a negative control (BAY-771), BAY-069 was donated as a chemical probe to the Structural Genomics Consortium.

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Primary Citation of related structures