Titin ua dab tsi hauv cov leeg?
Titin ua dab tsi hauv cov leeg?

Video: Titin ua dab tsi hauv cov leeg?

Video: Titin ua dab tsi hauv cov leeg?
Video: Tuag Ua Dab Tsi / by TXOS LAUJ / Nkauj Tawm Tshiab 2021 Official 2024, Lub Xya hli ntuj
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Titin yog protein ntau ntau ntawm striated nqaij . Titin tus thawj lub luag haujlwm yog Txhawm rau kom ruaj khov cov ntaub ntawv tuab, nruab nrab ntawm cov ntaub nyias nyias, tiv thaiv kom tsis txhob overstretching ntawm sarcomere, thiab kom rov qab cov sarcomere zoo li lub caij nplooj ntoos hlav tom qab nws yog ncab.

Ua raws li qhov no, qhov twg titin pom nyob rau hauv ib lub sarcomere?

Titin . Titin yog qhov loj, 4.2 MDa, cov protein ntau nyob hauv sarcomere ntawm striated nqaij. Txuas ntxiv los ntawm nws N-terminus thauj tog rau nkoj nyob rau hauv Z-disc rau nws C-terminus khi rau cov xov tuab hauv M-band, titin ib Nws yog feem ntau lub luag haujlwm rau qhov tsis muaj zog ntawm myocardium thaum lub sijhawm diastolic filling.

Ib yam li ntawd, Titin puas yog tuab lossis nyias nyias? tuab filaments feem ntau ntawm cov protein myosin. Txhua tropomyosin molecule muaj ib qho me me calcium-binding protein hu ua troponin khi rau nws. Txhua nyias filaments tau txuas nrog Z-kab. Elastic filaments , 1nm inch, yog ua los ntawm titin ib , ib tug loj springy protein.

Ntxiv mus, hom twg ntawm cov protein yog Titin?

Titin, tseem hu ua txuas , yog ib qho yooj yim intrasarcomeric filamentous protein, uas yog cov proteins loj tshaj plaws paub niaj hnub no. Titins yog tsev neeg muaj cov protein ntau uas tuaj yeem tawg ua ob pawg me me ntawm cov leeg nqaij thiab tsis yog cov leeg nqaij ntawm cov leeg nqaij.

Dab tsi yog cov protein ntau tshaj plaws hauv tib neeg lub cev?

Titin

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