Video: Lub luag haujlwm ntawm aminoacyl tRNA synthetase yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib qho aminoacyl-tRNA synthetase ( aaRS los yog ARS), kuj hu ua tRNA- ligas , yog ib enzyme uas txuas cov amino acid tsim nyog rau nws tRNA. Aminoacyl tRNA tshuaj yog li ntawd ua lub luag haujlwm tseem ceeb hauv RNA txhais lus, kev qhia ntawm cov noob los tsim cov proteins.
Raws li txoj cai, lub luag haujlwm ntawm aminoacyl tRNA synthetase yog dab tsi hauv protein synthesis?
Aminoacyl - tRNA synthetases (aaRS) ua si hauv nruab nrab luag hauj lwm hauv protein ntau biosynthesis los ntawm catalyzing qhov txuas ntawm cov amino acid muab rau 3' kawg ntawm nws cov cognate tRNA . Lawv ua qhov no los ntawm kev tsim lub zog nplua nuj aminoacyl -adenylate nruab nrab ntawm cognate amino acid, uas ua haujlwm hloov cov amino acid mus rau tRNA.
Tom qab, lo lus nug yog, ua li cas tRNA synthetase paub cov amino acid nws ua haujlwm nrog? Txhua aminoacyl- tRNA synthetase ua muaj ib qhov chaw sib khi uas paub ib qho tshwj xeeb amino acid , thiab lwm qhov chaw sib khi uas paub ib qho tshwj xeeb tRNA los ntawm qhov chaw tshwj xeeb ntawm tus neeg txais lub qia thiab / lossis anticodon voj ntawm lub tRNA.
Tsis tas li ntawd, vim li cas cov enzyme aminoacyl tRNA synthetase tseem ceeb rau kev txhais lus?
Qhov no enzyme yog heev tseem ceeb vim nws phim cov tRNA thiab Amino Acids. Muaj 20 aminoacyl - tRNA rau txhua hom amino acid. RNA processing yog tsim nyog vim nws tau txais mRNA molecule npaj rau txhais lus.
Yuav ua li cas tRNA synthetase enzyme them TRNA nrog cov amino acid kom raug?
Aspartyl- tRNA synthetase ua (xiav thiab ntsuab) khi rau tRNA (liab). Cov no enzymes nqi txhua tRNA nrog cov amino acid tsim nyog , yog li tso cai rau txhua tus tRNA ua cov tsim nyog txhais los ntawm cov noob caj noob ces ntawm DNA mus rau hauv lub amino acid cov proteins code. Yog xav paub ntxiv txog tRNA , saib yav dhau los Molecule ntawm Lub Hlis.
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