Structure and function of Escherichia coli RimK, an ATP-grasp fold, L-glutamyl ligase enzyme.
Proteins
; 81(10): 1847-54, 2013 Oct.
Article
em En
| MEDLINE
| ID: mdl-23609986
ABSTRACT
We report herein the crystal structure of Escherichia coli RimK at a resolution of 2.85 Å, an enzyme that catalyzes the post-translational addition of up to 15 C-terminal glutamate residues to ribosomal protein S6. The structure belongs to the ATP-grasp superfamily and is organized as a tetramer, consistent with gel filtration analysis. Each subunit consists of three distinct structural domains and the active site is located in the cleft between these domains. The catalytic reaction appears to occur at the junction between the three domains as ATP binds between the B and C domains, and other substrates bind nearby.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Peptídeo Sintases
/
Proteínas de Escherichia coli
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article