Cov protein twg yog sib xyaw hauv qhov ntxhib ER?

Video: Cov protein twg yog sib xyaw hauv qhov ntxhib ER?

2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44

Raug ER hu ua ntxhib vim nws muaj ribosomes txuas rau nws nto. Ob daim nyias nyias ntawm du thiab lus ER daim ntawv hnab hu ua cisternae. Cov protein molecules yog ua ke thiab sau rau hauv qhov chaw ntawm lub qhov ncauj/lumen. Thaum txaus cov protein ua tau synthesized , lawv sau thiab raug kaw hauv cov hnab tshos.

Ib yam li ib tus yuav nug, cov protein dab tsi ua rau ntxhib ER tsim?

Raug ER tau pom thoob plaws ntawm tes tab sis qhov ntom tau siab dua nyob ze ntawm lub hauv paus thiab cov cuab yeej Golgi. Ribosomes nyob rau hauv ntxhib endoplasmic reticulum yog hu ua 'membrane bound' thiab muaj lub luag haujlwm rau kev sib dhos ntawm ntau yam cov protein . Txoj kev no hu ua kev txhais lus.

Ib tus kuj yuav nug, puas yog ntxhib endoplasmic reticulum koom nrog hauv cov protein synthesis? Sab nrauv (cytosolic) lub ntsej muag ntawm ntxhib endoplasmic reticulum yog kawm nrog ribosomes uas yog qhov chaw ntawm protein synthesis . Cov ntxhib endoplasmic reticulum tshwj xeeb tshaj yog nyob hauv cov hlwb xws li hepatocytes.

Tsis tas li ntawd, cov protein sib sau ua ke ntawm qhov ntxhib endoplasmic reticulum li cas?

Hauv kev xaus, protein synthesis yog txheej txheem ntawm kev ua cov protein sab hauv. Ua ntej, lub xov tooj ntawm tes luam DNA rau mRNA thaum sau cov ntawv. Ribosome docks thiab protein ntau nkag mus rau lus ER los ntawm ib tug pore. Hauv lus ER , cov protein ntau tau muab tais thiab tom qab ntawd xa mus rau lub cuab yeej Golgi kom faib rau hauv lub xovtooj.

Dab tsi yog cov tshuaj sib xyaw hauv qhov ntxhib endoplasmic reticulum?

Piv txwv ntawm cov protein synthesis los ntawm ntxhib endoplasmic reticulum yog cov cov protein ua hauv zais cia hlwb. Cov no suav nrog cov zom zaub mov tsim tawm hauv plab thiab cov tshuaj hormones zoo li cov tshuaj insulin tsim tawm hauv cov txiav txiav.

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