Puas yog aquaporins nquag thauj?
Puas yog aquaporins nquag thauj?

Video: Puas yog aquaporins nquag thauj?

Video: Puas yog aquaporins nquag thauj?
Video: Tsim Nyog Kuv Yog Tus Tu Siab - Tsom Xyooj Nkauj Tawm Tshiab 2022 2024, Kaum ib hlis
Anonim

Ua li cas aquaporins ua nyob rau theem molecular? Lub luag haujlwm tseem ceeb ntawm feem ntau aquaporins yog to thauj dej hla cell membranes teb rau osmotic gradients tsim los ntawm nquag daws thauj.

Tsuas yog li ntawd, puas yog aquaporins ua haujlwm lossis kev thauj mus los?

Aquaporins (AQP's) yog 6-pass transmembrane proteins uas tsim cov kab hauv daim nyias nyias. Thaum passive thauj los ntawm Aquaporins feem ntau aquaporins (i.e. AQP0/MIP, AQP1, AQP2, AQP3, AQP4, AQP5, AQP7, AQP8, AQP9, AQP10) thauj dej mus rau hauv thiab tawm ntawm cov hlwb raws li osmotic gradient hla lub membrane.

Ib yam li ntawd, puas aquaporins siv lub zog? Qhov no tseem ceeb npaum li cas ntawm zog tsis tau yooj yim muaj, uas zoo tiv thaiv ions los ntawm kev txav mus los dej aquaporin cov channel. Nws yog ib qho tseem ceeb kom nco ntsoov tias aquaporins ua tsis nquag thauj dej hla lub cell membrane; es tsis txhob, lawv pab txhawb cov diffusion ntawm cov dej hla lub cell membrane.

Ib tug kuj yuav nug, hom kev thauj mus los ua aquaporins poob hauv qab?

Aquaporins (AQPs) yog cov protein me me uas nyob hauv cov plasma membrane; Qee qhov yog xaiv dej thiab lwm tus kuj thauj glycerol. Lawv tsim bidirectional osmotic dej thauj channel hla lub plasma membrane.

Puas yog tib neeg muaj aquaporins?

Ntau tshaj kaum txawv aquaporins muaj tau pom nyob rau hauv tib neeg lub cev, thiab ntau yam kab mob, xws li congenital cataracts thiab nephrogenic diabetes insipidus, yog txuas nrog kev ua haujlwm tsis zoo ntawm cov channel no.

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