Helicases yog enzymes uas khi thiab tuaj yeemtxawm tias hloov kho nucleic acid lossis nucleic acid protein complexes. Muaj DNA thiab RNA helicases. … DNA helicases kuj tseem ua haujlwm hauv lwm cov txheej txheem ntawm tes uas yuav tsum tau muab cais ua ob-kab DNA, suav nrog kev kho DNA thiab kev sau ntawv.
Puas yog helicase protein?
Helicases yog motor proteins uas ob peb lub hydrolysis ntawm nucleoside triphosphate (NTPase) rau nucleic acid unwinding.
YPuas yog helicase thiab polymerase enzymes?
Thawj, an enzyme hu ua DNA helicase cais ob txoj hlua ntawm DNA ob lub helix. … Lwm cov enzymes hu ua DNA polymerases tom qab ntawd siv txhua txoj hlua los ua ib qho qauv los tsim kom muaj qhov sib txuam DNA tshiab. DNA polymerases tsim cov DNA tshiab los ntawm kev koom ua ke me me molecules hu ua nucleotides.
Lub hom phiaj ntawm cov enzyme helicase yog dab tsi?
DNA helicases catalyze qhov cuam tshuam ntawm hydrogen bonds uas tuav ob kab ntawm ob-stranded DNA ua ke. Qhov no lub zog-yuav tsum tau unwinding cov tshuaj tiv thaiv tshwm sim nyob rau hauv tsim ntawm ib leeg-stranded DNA yuav tsum tau raws li ib tug template los yog cov tshuaj tiv thaiv intermediate nyob rau hauv DNA replication, kho thiab recombination.
YPuas yog polymerase ib qho enzyme?
DNA polymerase (DNAP) yog ib hom enzyme uas yog lub luag haujlwm tsim cov ntawv luam tshiab ntawm DNA, nyob rau hauv daim ntawv ntawm nucleic acid molecules. Nucleic acids yog cov polymers, uas yog cov molecules loj ua los ntawm me me, rov ua duaunits uas muaj tshuaj sib txuas rau ib leeg.
