Qhov chaw - mRNA ua haujlwm nyob rau hauv cytoplasm ntawm ib lub xovtooj ntawm tes, qhov DNA tiv thaiv hauv lub cell lub nucleus. MRNA tsis tuaj yeem nkag mus rau hauv lub nucleus, yog li ob lub nucleic acids yeej tsis nyob hauv tib qho chaw hauv cell.
MRNA puas txav mus rau hauv lub nucleus?
Tom qab mRNAs tau tsim, ua tiav, thiab ua rau muaj ntau yam proteins sib txawv ntawm qhov chaw sau ntawv, lawv raug tso tawm rau hauv nucleoplasm (1). … Los ntawm qhov sib txawv, ntau lwm cov kev tshawb fawb tau pom tias mRNP complexes txav tau yooj yim nyob rau hauv lub nucleus (10-16).
mRNA nkag mus rau hauv nucleus li cas?
mRNA yog synthesized nyob rau hauv lub nucleus siv cov nucleotide sib lawv liag ntawm DNA ua tus qauv Cov txheej txheem no yuav tsum muaj nucleotide triphosphates ua substrates thiab yog catalyzed los ntawm enzyme RNA polymerase II. Cov txheej txheem ntawm kev ua mRNA los ntawm DNA yog hu ua transcription, thiab nws tshwm sim nyob rau hauv lub nucleus.
RNA puas tuaj yeem nkag mus rau lub nucleus ntawm lub cell?
Feem ntau DNA thiab ob peb tus kab mob RNA tsom lawv cov genome rau tus tswv tsev nucleus. Kev hla ntawm cov kab mob nuclear tshwm sim hauv ntau txoj hauv kev: -RNA tus kab mob, dsDNA tus kab mob thiab lentivirus genomes nkag los ntawm nuclear pore complex (NPC) los ntawm lub cellular Importin thauj.
mRNA mus qhov twg tom qab cytoplasm?
Messenger RNA (mRNA) ces mus mus rau ribosomes hauv cell cytoplasm, qhov twg protein synthesis tshwm sim (Daim duab 3). Lub hauv paus triplets ntawm kev hloov pauv RNA (tRNA) khub nrog cov ntawm mRNA thiab tib lub sijhawm tso lawv cov amino acids ntawm cov saw hlau loj hlob.
