DNase I, daga Pancreas na Shanu CAS:9003-98-9

DNase I, wanda aka samo daga pancreas na shanu, wani enzyme ne wanda ke raba ƙwayoyin DNA ta hanyar hydrolyzed haɗin phosphodiester a cikin kashin bayan DNA. Babban tasirin DNase I shine lalata da kuma raba DNA.

Babban amfani da DNase I shine a cikin binciken ilmin halittar kwayoyin halitta. Ana amfani da shi akai-akai a cikin gwaje-gwaje daban-daban don ware da tsarkake DNA, cire gurɓataccen DNA na kwayoyin halitta daga samfuran RNA, da kuma sarrafa DNA. DNase I yana da tasiri musamman wajen lalata DNA a cikin hadaddun furotin-DNA, yana bawa masu bincike damar yin nazarin hulɗar furotin-DNA ko cire sunadaran da ke ɗaure DNA.

Bugu da ƙari, ana amfani da DNase I akai-akai a cikin gwaje-gwajen sawun DNA, wanda ke taimakawa wajen gano yankunan DNA waɗanda ke da alaƙa da takamaiman sunadarai. Ta hanyar magance samfurin DNA tare da DNase I da kuma nazarin gutsuttsuran DNA da suka biyo baya, masu bincike za su iya tantance wuraren da ke ɗaure sunadaran da ke ɗaure DNA.

Ana kuma amfani da DNase I a cikin nazarin chromatin, inda yake taimakawa wajen narkewar chromatin (DNA da sunadaran da ke da alaƙa) don nazarin tsarinsa da tsarinsa. Ta hanyar narke chromatin tare da DNase I, masu bincike za su iya gano yankuna waɗanda suka fi sauƙin isa da kuma sauƙin rarrabawa, suna ba da haske game da tsarin kwayoyin halitta da tsarin chromatin.

Bugu da ƙari, DNase I yana da aikace-aikace a cikin binciken likita, musamman wajen gano da ƙididdige DNA mara ƙwayoyin halitta a cikin jinin da ke yawo. Ta hanyar amfani da DNase I don narke DNA mara yawo, yana yiwuwa a bincika da gano takamaiman jerin DNA da ke da alaƙa da cututtuka ko rashin daidaituwar kwayoyin halitta.