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  • Turkish Journal of Veterinary and Animal Sciences
  • Volume:31 Issue:5
  • Expression of the β-(1,3-1,4)-Glucanase Gene in Streptococcus salivarius subsp. thermophilus

Expression of the β-(1,3-1,4)-Glucanase Gene in Streptococcus salivarius subsp. thermophilus

Authors : Meltem AŞAN, Numan ÖZCAN
Pages : 319-324
View : 20 | Download : 6
Publication Date : 0000-00-00
Article Type : Research Paper
Abstract :Bu çal›flmada, kanatl›lara yönelik rekombinant probiyotik gelifltirmek amac›yla β-insert ignore into journalissuearticles values(1,3-1,4);-glukanaz insert ignore into journalissuearticles values(likenaz); geninin Streptococcus salivarius subsp. thermophilus’a aktar›lmas›, ekspresyonu ve likenaz enziminin s›cakl›¤a direncinin art›r›lmas› amaçlanm›flt›r. β-insert ignore into journalissuearticles values(1,3-1,4);-glukanaz genini tafl›yan rekombinant TL1R plazmidi S. salivarius subsp. thermophilus’a elektrotransformasyon yöntemi ile aktar›lm›flt›r. β-insert ignore into journalissuearticles values(1,3-1,4);-glukanaz geninin S. salivarius subsp. thermophilus’da ekspresyonu likenanl› besiyeri, SDS-PAGE ve zymogram analizleri ile tespit edilmifltir. S. salivarius subsp. thermophilus’un sentezledi¤i β-insert ignore into journalissuearticles values(1,3- 1,4);-glukanaz enzimi, s›cakl›¤a direnci artarak 70 ºC’de 15 dakika aktivitesini korumufltur. Buna karfl›l›k, Lactococcus lactis ve Escherichia coli taraf›ndan sentezlenen β-insert ignore into journalissuearticles values(1,3-1,4);-glukanaz enzimi ayn› s›cakl›k uygulamas›nda aktivitesini kaybetmifltir. Tüm rekombinant bakterilerce sentezlenen β-insert ignore into journalissuearticles values(1,3-1,4);-glukanaz enzimi 37-100 ºC’lerde 15 dakika s›cakl›k uygulamas›ndan sonra denatürasyona direnerek bir flekilde suda çözünürlü¤ünü kaybetmemifltir.
Keywords : Streptococcus salivarius subsp thermophilus, β 1, 3 1, 4, glukanaz, ekspresyon, s›cakl›¤a dirençlilik

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