Selective, Small-Molecule Co-Factor Binding Site Inhibition of a Su(var)3-9, Enhancer of Zeste, Trithorax Domain Containing Lysine Methyltransferase.
J Med Chem
; 62(17): 7669-7683, 2019 09 12.
Article
em En
| MEDLINE
| ID: mdl-31415173
ABSTRACT
The first chemical probe to primarily occupy the co-factor binding site of a Su(var)3-9, enhancer of a zeste, trithorax (SET) domain containing protein lysine methyltransferase (PKMT) is reported. Protein methyltransferases require S-adenosylmethionine (SAM) as a co-factor (methyl donor) for enzymatic activity. However, SAM itself represents a poor medicinal chemistry starting point for a selective, cell-active inhibitor given its extreme physicochemical properties and its role in multiple cellular processes. A previously untested medicinal chemistry strategy of deliberate file enrichment around molecules bearing the hallmarks of SAM, but with improved lead-like properties from the outset, yielded viable hits against SET and MYND domain-containing protein 2 (SMYD2) that were shown to bind in the co-factor site. These leads were optimized to identify a highly biochemically potent, PKMT-selective, and cell-active chemical probe. While substrate-based inhibitors of PKMTs are known, this represents a novel, co-factor-derived strategy for the inhibition of SMYD2 which may also prove applicable to lysine methyltransferase family members previously thought of as intractable.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
S-Adenosilmetionina
/
Histona-Lisina N-Metiltransferase
/
Inibidores Enzimáticos
/
Bibliotecas de Moléculas Pequenas
Tipo de estudo:
Prognostic_studies
Limite:
Humans
Idioma:
En
Revista:
J Med Chem
Assunto da revista:
QUIMICA
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Estados Unidos