Dab tsi enzyme HIV siv rov qab transcriptase?
Dab tsi enzyme HIV siv rov qab transcriptase?

Video: Dab tsi enzyme HIV siv rov qab transcriptase?

Video: Dab tsi enzyme HIV siv rov qab transcriptase?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Lub peb hlis ntuj
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Crystallographic qauv ntawm HIV -1 rov qab transcriptase qhov twg ob lub subunits p51 thiab p66 yog xim thiab cov chaw nquag ntawm polymerase thiab nuclease yog highlighted. A rov qab transcriptase (RT) ib enzyme siv los tsim cov DNA ntxiv (cDNA) los ntawm RNA template, txheej txheem hu ua thim rov qab kev sau ntawv.

Ib yam li ntawd, enzyme reverse transcriptase ua li cas?

Rov qab transcriptase , kuj hu ua RNA-directed DNA polymerase, ib enzyme encoded los ntawm genetic khoom ntawm retroviruses catalyzes kev sau ntawv ntawm retrovirus RNA (ribonucleic acid) rau hauv DNA (deoxyribonucleic acid).

Ib yam li ntawd, HIV puas muaj cov ntaub ntawv thim rov qab? cell-graphics-1a. HIV yog ib tug retrovirus, uas txhais tau hais tias nws nqa ib leeg-stranded RNA yog nws cov khoom siv caj ces es tsis yog ob-stranded DNA tib neeg hlwb. nqa . Retroviruses kuj muaj cov enzymes rov qab transcriptase , uas tso cai rau nws luam RNA rau hauv DNA thiab siv cov DNA "daim ntawv" los kis rau tib neeg, lossis tus tswv, cov hlwb.

Ib tug kuj yuav nug, cov kab mob twg siv rov qab transcriptase?

Cov kab mob kuj siv rov qab transcriptase kom ciaj sia. Cov kab mob hu ua retroviruses muaj ib qho RNA genome thiab convert RNA rov qab mus rau DNA ua ntej nyiag lub cell. Muaj ntau ntau yam kab mob uas siv rov qab transcriptase, xws li Human T-lymphotropic virus (HTVL) hom 1 thiab 2 thiab human immunodeficiency virus (HIV).

HIV siv cov enzymes dab tsi?

Tom qab HIV tau khi rau lub hom phiaj ntawm tes, HIV RNA thiab ntau yam enzymes, suav nrog rov qab transcriptase , integrase, ribonuclease, thiab protease , yog txhaj rau hauv lub cell.

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