Ontology highlight
ABSTRACT:
SUBMITTER: Alvaro-Benito M
PROVIDER: S-EPMC2976189 | biostudies-literature | 2010 Nov
REPOSITORIES: biostudies-literature
Alvaro-Benito Miguel M de Abreu Miguel M Portillo Francisco F Sanz-Aparicio Julia J Fernández-Lobato María M
Applied and environmental microbiology 20100917 22
Schwanniomyces occidentalis β-fructofuranosidase (Ffase) releases β-fructose from the nonreducing ends of β-fructans and synthesizes 6-kestose and 1-kestose, both considered prebiotic fructooligosaccharides. Analyzing the amino acid sequence of this protein revealed that it includes a serine instead of a leucine at position 196, caused by a nonuniversal decoding of the unique mRNA leucine codon CUG. Substitution of leucine for Ser196 dramatically lowers the apparent catalytic efficiency (k(cat)/ ...[more]