Video: Lub luag haujlwm ntawm RNA helicase yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
RNA helicases ua ib tsev neeg loj cov proteins nrog kev ua haujlwm hauv txhua yam ntawm RNA metabolism . RNA helicases tuaj yeem muaj ntau yam teebmeem biochemical, xws li unwinding lossis annealing RNA molecules, clamping protein ntau complexes ntawm RNA los yog remodeling ribonucleoprotein complexes.
Ntxiv mus, qhov haujlwm ntawm helicase yog dab tsi?
Helicase tshem tawm DNA. Helicases yog cov enzymes uas khi thiab tuaj yeem hloov kho nucleic acid lossis nucleic acid protein complexes. Muaj DNA thiab RNA helicases . DNA helicases Nws yog ib qho tseem ceeb thaum lub sij hawm DNA replication vim hais tias lawv cais ob-stranded DNA mus rau hauv ib tug strands cia txhua strand yuav luam.
Tom qab ntawd, lo lus nug yog, yuav ua li cas tsis muaj helicase? Zoo li "The Little Engine That Ua tau , " helicases yog cov enzymes ua haujlwm hnyav uas tsis tso tseg. Tsis muaj lawv, koj lub hlwb yuav nres kev faib thiab ntau lwm yam tseem ceeb ntawm cov txheej txheem lom neeg yuav tuaj nres. Helicases muaj kev koom tes hauv txhua yam ntawm cov txheej txheem cellular uas koom nrog DNA thiab RNA.
Ib sab ntawm qhov no, puas yog RNA polymerase helicase?
RNA polymerase thiab DNA helicase . Kuv phau ntawv kawm (WJEC Biology rau qib AS) hais tias yog DNA helicase uas rhuav cov hydrogen bonds thaum RNA polymerase catalyses tsim cov bonds ntawm RNA nucleotides. Cov enzyme DNA helicase lov cov hydrogen bonds ntawm lub hauv paus nyob rau hauv ib cheeb tsam ntawm lub DNA molecule.
Puas yog helicase xav tau rau kev sau ntawv?
Paub los yog putative helicases yog xav tau rau general kev sau ntawv pib thiab rau kev sau ntawv -coupled DNA kho, thiab tej zaum yuav ua si lub luag hauj lwm tseem ceeb nyob rau hauv elongation, txiav, thiab transcript stability.
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