Frameshift mutation yields truncated, dysfunctional khoom proteins, ua rau poob-of-function, genetic disorders los yog txawm tuag. Frameshift kev hloov pauv tau suav tias yog qhov teeb meem feem ntau thiab qhov tseem ceeb me me rau kev hloov pauv molecular ntawm cov proteins.
Puas yog frameshift teeb meem?
Frameshift mutations yog pom tseeb hauv kab mob hnyav heev xws li kab mob Tay–Sachs; lawv ua rau muaj kev cuam tshuam rau qee cov qog nqaij hlav thiab cov chav kawm ntawm tsev neeg hypercholesterolemia; Xyoo 1997, kev hloov pauv hloov pauv tau txuas rau kev tiv thaiv kab mob los ntawm HIV retrovirus.
Puas yog frameshift mutation phem tshaj?
Insertion vs.
Kev hloov pauv, ntawm qhov tod tes, yog hom kev hloov pauv ntawm qhov taw tes. Lawv koom nrog kev tshem tawm ntawm lub hauv paus khub. Ob qho kev hloov pauv no ua rau muaj kev tsim ntawm yam txaus ntshai tshaj plaws ntawm qhov kev hloov pauvntawm lawv tag nrho: kev hloov pauv hloov pauv.
Dab tsi yog qhov tshwm sim ntawm kev hloov pauv hloov pauv?
Frameshift kev hloov pauv tuaj yeem ua rau: Cov hloov pauv coding ib ntu ntawm cov protein yuav tsis siv tau lossis cov protein tshiab tag nrho. Raws li qhov tshwm sim, ntau yam txheej txheem biochemical tuaj yeem cuam tshuam.
Vim li cas frameshift mutation yog qhov loj tshaj?
Mutational teebmeem
Feem ntau, kev hloov pauv hloov pauv thiab tsis muaj txiaj ntsig yog suav tias yog feem ntau cuam tshuam cov protein ua haujlwm hnyav vim tias feem ntawm cov protein tsis tsim.