Video: Puas yog Signaling molecules proteins?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cells muaj cov proteins hu ua receptors uas khi rau signaling molecules thiab pib ib qho physiological teb. Txawv receptors yog tshwj xeeb rau txawv molecules . Qhov no yog qhov tseem ceeb vim feem ntau signaling molecules yog qhov loj dhau los yog them dhau los hla lub cell plasma membrane (Daim duab 1).
Ua kom pom qhov no, Dab tsi yog Signaling molecules?
Teeb liab molecules yog cov molecules uas yog lub luag haujlwm rau kev xa cov ntaub ntawv ntawm cov hlwb hauv koj lub cev. Qhov loj, zoo li, thiab kev ua haujlwm ntawm ntau hom signaling molecules tuaj yeem sib txawv heev.
Ib yam li ntawd, lub teeb liab protein yog dab tsi? A teeb liab peptide (qee zaum hu ua teeb liab sib lawv liag, aiming teeb liab , localization teeb liab , localization sequence, transit peptide, leader sequence or leader peptide) yog luv peptide (feem ntau yog 16-30 amino acids ntev) tam sim no ntawm N-terminus ntawm feem ntau ntawm cov tshiab synthesized cov proteins uas destined
Tsis tas li lo lus nug yog, qhov teeb meem pom cov protein nyob qhov twg?
Feem ntau, cov receptors no tau qhia rau ntawm lub hom phiaj ntawm tes, tab sis qee qhov receptors yog intracellular cov protein nyob hauv nyob rau hauv lub cytosol los yog lub nucleus. Cov intracellular receptors teb rau me me hydrophobic teeb liab molecules uas muaj peev xwm diffuse hla lub plasma membrane.
Dab tsi yog 4 hom kev taw qhia ntawm tes?
Muaj plaub yam yooj yim ntawm cov tshuaj teeb liab pom muaj nyob rau hauv multicellular kab mob: paracrine teeb liab , autocrine ua teeb liab , kab mob endocrine teeb liab , thiab teeb liab los ntawm kev sib cuag ncaj qha.
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