Cov txheej txheem:

Yuav ua li cas yog lub xov tooj ntawm tes amplified?
Yuav ua li cas yog lub xov tooj ntawm tes amplified?

Video: Yuav ua li cas yog lub xov tooj ntawm tes amplified?

Video: Yuav ua li cas yog lub xov tooj ntawm tes amplified?
Video: Yuav tawm ntawm txoj kev txom nyem tau li cas? 2024, Kaum ib hlis
Anonim

Cells feem ntau tau txais teeb liab inchemical daim ntawv ntawm ntau yam teeb liab molecules. Thaum a teeb liab molecule koom nrog qhov tsim nyog receptor ntawm a cell nto, qhov kev khi no ua rau cov saw hlau ntawm cov xwm txheej uas tsis yog tsuas yog nqa lub teeb liab mus rau cell sab hauv, butamplifies nws ib yam.

Kuj paub yog, dab tsi yog amplification ntawm teeb liab?

Amplification txhais tau hais tias nce qhov amplitude (voltage lossis tam sim no) ntawm lub sijhawm sib txawv teeb liab los ntawm ib tug muab, raws li qhia ntawm no.

Tsis tas li ntawd, cov cell teeb liab li cas? Cells feem ntau sib txuas lus siv tshuaj teeb liab . Cov tshuaj no teeb liab , uas yog cov proteinsor lwm cov molecules tsim los ntawm kev xa cell , feem ntau secreted los ntawm cell thiab tso rau hauv lub extracellularspace. Nyob ntawd, lawv tuaj yeem ntab - zoo li cov lus hauv lub raj mis - hla mus rau cov neeg nyob sib ze hlwb.

Xav txog qhov no, lub teeb liab transduction amplified li cas?

Thaum ib lub ligand khi rau lub cell-nto receptor, thereceptor's intracellular domain (ib feem hauv lub cell) hloov qee txoj kev. Ntau teeb liab transduction txoj kev ua kom nrov pib teeb liab , yog li ntawd ib qho molecule ntawm ligand tuaj yeem ua rau kev ua kom muaj ntau lub molecules ntawm lub downstreamtarget.

Dab tsi yog 3 kauj ruam ntawm cov teeb liab transduction?

Theem ntawm Kev Hloov Pauv Hloov

  • Muaj peb theem nyob rau hauv tus txheej txheem ntawm cell signaling los yog kev sib txuas lus:
  • Kev txais tos-ib qho protein ntawm lub xovtooj ntawm tes pom cov cim tshuaj.
  • Kev hloov pauv-kev hloov pauv hauv cov protein txhawb nqa lwm yam kev hloov pauv nrog rau txoj kev teeb liab-transduction.
  • Teb-yuav luag txhua yam kev ua ntawm tes.

Pom zoo: