Stereochemical Divergence of Polyprenol Phosphate Glycosyltransferases.
Trends Biochem Sci
; 43(1): 10-17, 2018 01.
Article
en En
| MEDLINE
| ID: mdl-29183665
ABSTRACT
In the three domains of life, lipid-linked glycans contribute to various cellular processes ranging from protein glycosylation to glycosylphosphatidylinositol anchor biosynthesis to peptidoglycan assembly. In generating many of these glycoconjugates, phosphorylated polyprenol-based lipids are charged with single sugars by polyprenol phosphate glycosyltransferases. The resultant substrates serve as glycosyltransferase donors, complementing the more common nucleoside diphosphate sugars. It had been accepted that these polyprenol phosphate glycosyltransferases acted similarly, given their considerable sequence homology. Recent findings, however, suggest that matters may not be so simple. In this Opinion we propose that the stereochemistry of sugar addition by polyprenol phosphate glycosyltransferases is not conserved across evolution, even though the GT-A fold that characterizes such enzymes is omnipresent.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Fosfatos
/
Polímeros
/
Glicosiltransferasas
/
Pentanoles
Límite:
Humans
Idioma:
En
Revista:
Trends Biochem Sci
Año:
2018
Tipo del documento:
Article