Video: Yuav ua li cas mRNA hloov mus ua cov protein?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Messenger RNA ( mRNA ) yog txhais hauv cov protein los ntawm kev sib koom tes ntawm kev hloov RNA (tRNA) thiab ribosome, uas yog tsim los ntawm ntau yam cov proteins thiab ob loj ribosomal RNA (rRNA) molecules.
Kuj paub, mRNA txhais li cas rau hauv cov protein?
Hauv kev txhais lus , tub txib RNA ( mRNA ) yog decoded hauv lub ribosome decoding center rau tsim ib qho amino acid saw, los yog polypeptide. Cov polypeptide tom qab folds rau hauv ib active protein ntau thiab ua nws txoj haujlwm hauv lub cell. Elongation: Lub tRNA hloov cov amino acid rau lub tRNA sib raug rau tom ntej no codon.
Tom qab ntawd, lo lus nug yog, mRNA ua dab tsi hauv cov protein synthesis? Messenger RNA ( mRNA ) molecules nqa cov coding sequences rau protein synthesis thiab yog hu ua transcripts; ribosomal RNA (rRNA) molecules tsim lub hauv paus ntawm lub cell ribosomes (cov qauv uas protein synthesis tshwm sim); thiab hloov RNA (tRNA) molecules nqa cov amino acids mus rau ribosomes thaum lub sij hawm protein ntau
Kuj tseem paub, mRNA hloov mus ua tRNA li cas?
A tRNA yog ib qho RNA molecule nrog peb lub hauv paus anticodon uas yog ntxiv rau ib muab mRNA unit ntawm genetic code. Txhua tRNA yog txuas rau ib qho amino acid, yog li lub ribosome txav mus rau hauv mRNA transcript, positioning ib match tRNA codon tom ntej rau txhua mRNA codon thiab txuas cov amino acids ua ntej ejecting lub tRNA.
Yuav ua li cas lub cell ua ib tug protein?
Thaum lub cell xav tau ua kom muaj protein ntau , mRNA yog tsim nyob rau hauv lub nucleus. Tom qab ntawd, mRNA raug xa tawm ntawm lub nucleus thiab mus rau ribosomes. Thaum twg los tau ua tus protein ntau , ob lub subunits tuaj ua ke thiab ua ke nrog mRNA. tRNA yog sib koom ua ke rau cov amino acids ntab ncig lub cell.
Pom zoo:
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