Dab tsi yog splice pub dawb?
Dab tsi yog splice pub dawb?

Video: Dab tsi yog splice pub dawb?

Video: Dab tsi yog splice pub dawb?
Video: Dawb yaj (cv ) - Ntuj pub los tsis hlub lawm nkauj tawm tshiab 2023 2024, Kaum ib hlis
Anonim

Splicing qhov chaw. Cov nucleotides no yog ib feem ntawm splicing qhov chaw. PAB - SPLICE : splicing qhov chaw pib ntawm ib qho intron, intron 5' sab laug kawg. ACCEPTOR- SPLICE : splicing qhov chaw ntawm qhov kawg ntawm ib qho intron, intron 3' txoj cai kawg. Txoj cai GT/AG mRNA ua tiav yog siv tau rau yuav luag txhua cov noob eukaryotic [1, 2].

Kuj tseem paub yog, cov chaw splice txhais li cas?

Kev hloov pauv caj ces hauv DNA ib ntus uas tshwm sim ntawm ciam teb ntawm exon thiab intron ( qhov chaw sib txuas ). Qhov kev hloov no tuaj yeem cuam tshuam RNA splicing ua rau poob ntawm exons lossis kev suav nrog introns thiab hloov pauv protein-coding ib ntus. Kuj hu ua sib txuas - qhov chaw txawv.

Tsis tas li ntawd, qhov txawv ntawm splicing thiab lwm splicing yog dab tsi? Kev tsim kho splicing yog tus txheej txheem ntawm intron tshem tawm thiab exon ligation ntawm feem ntau ntawm cov exons hauv kev txiav txim uas lawv tshwm hauv a noob. Lwm txoj kev splicing yog qhov sib txawv ntawm qhov kev nyiam ua ntu zus uas qee qhov exons raug hla ua rau ntau hom mRNA paub tab.

Kuj paub, dab tsi yog qhov tsis xws luag?

A sib txuas site mutation yog ib qho kev hloov caj ces uas ntxig, tshem tawm lossis hloov ntau cov nucleotides hauv qhov chaw tshwj xeeb uas splicing siv qhov chaw thaum lub sij hawm ua tus neeg xa xov liaison precursor RNA rau hauv tus tub txib RNA paub tab.

Dab tsi yog lwm txoj kev splicing hauv biology?

Lwm txoj kev splicing , los yog lwm txoj RNA splicing , los yog txawv splicing , yog ib txoj kev tswj hwm thaum lub sij hawm gene qhia uas ua rau ib tug tib gene coding rau ntau yam proteins. Muaj ntau ntau hom ntawm lwm txoj kev splicing pom, uas feem ntau yog exon hla.

Pom zoo: