Stable linker peptides for a cellulose-binding domain-lipase fusion protein expressed in Pichia pastoris

M Gustavsson, J Lehtio, S Denman, TT Teeri, K Hult, M Martinelle*

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

Abstrakti

Fusion proteins composed of a cellulose-binding domain from Neocallimastix patriciarum cellulase A and Candida antarctica lipase B were constructed using different linker peptides. The aim was to create proteolytically stable linkers that were able to join the functional modules without disrupting their function. Six fusion variants containing linkers of 4-44 residues were expressed in Pichia pastoris and analysed. Three variants were found to be stable throughout 7-day cultivations. The cellulose-binding capacities of fusion proteins containing short linkers were slightly lower compared with those containing long linkers. The lipase-specific activities of all variants, in solution or immobilized on to cellulose, were equal to that of the wildtype lipase.

AlkuperäiskieliEnglanti
Sivut711-715
Sivumäärä5
JulkaisuPROTEIN ENGINEERING
Vuosikerta14
Numero9
TilaJulkaistu - syysk. 2001
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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