Physical and kinetic effects on induction of various linker regions in beta-galactosidase/galactose dehydrogenase fusion enzymes

Sarah Ljung, L Bülow, Hélen Carlsson

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskriftPeer review

Sammanfattning

To examine the role of the connecting region in the artificial bifunctional enzyme beta-galactosidase/galactose dehydrogenase, linkers of different length were inserted between the catalytic units. The specific activity of the galactose dehydrogenase part of the complex was increased when longer linkers (9 and 13 amino acids) were used as connectors. These bifunctional enzymes were predominantly found to comprise hexamers, however, complexes of higher molecular weight were also formed. The sequential reaction was carried out more efficiently when hybrid enzymes with the longer linkers were used as demonstrated both in vitro by using purified protein preparations as well as in vivo by determining the growth rates of recombinant E. coli cells on a minimal medium containing lactose.

Originalspråkengelska
Sidor (från-till)154-60
Antal sidor7
TidskriftBiochimica et Biophysica Acta
Volym1293
Nummer1
DOI
StatusPublished - 1996 mars 7

Ämnesklassifikation (UKÄ)

  • Biokemi och molekylärbiologi

Fingeravtryck

Utforska forskningsämnen för ”Physical and kinetic effects on induction of various linker regions in beta-galactosidase/galactose dehydrogenase fusion enzymes”. Tillsammans bildar de ett unikt fingeravtryck.

Citera det här