Cov txheej txheem:
Video: AG protein receptor yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
G protein - ua ke tus neeg txais kev pab (GPCR), tseem hu ua xya-transmembrane tus neeg txais kev pab los yog heptahelical tus neeg txais kev pab , protein ntau nyob rau hauv lub cell membrane uas khi cov khoom extracellular thiab xa cov cim los ntawm cov tshuaj mus rau ib qho intracellular molecule hu ua ib G protein (guanine nucleotide-binding protein ntau ).
Tsis tas li ntawd, AG protein receptor ua haujlwm li cas?
G- Protein ua ke cov receptors (GPCRs) yog ib pawg ntawm xya transmembrane cov proteins uas khi cov teeb liab molecules sab nraum lub cell, transduct lub teeb liab mus rau hauv lub cell thiab thaum kawg ua rau ib tug cellular teb. Cov GPCRs ua haujlwm nrog kev pab ntawm ib G - Protein uas khi rau lub zog nplua nuj GTP.
Qhov thib ob, vim li cas G protein ua ke receptors tseem ceeb? Abstract. G protein - ua ke receptors (GPCRs) yog cov tsev neeg loj tshaj plaws ntawm lub xov tooj ntawm tes cov receptors . Cov no cov proteins ua lub luag haujlwm tseem ceeb hauv lub cev los ntawm kev txhawb nqa kev sib txuas lus ntawm tes los ntawm kev paub txog ntau hom ligands, suav nrog bioactive peptides, amines, nucleosides, thiab lipids.
Kuj kom paub yog, G protein mediated receptor sites yog dab tsi?
Cov G - protein ntau ua ke cov receptors (GPCRs) yog cov transmembrane cov receptors tam sim no nyob rau hauv cell membrane, lawv kuj hu ua metabotropic cov receptors . Lawv muaj peb subunits uas yog alpha, beta thiab gamma.
Dab tsi yog 4 hom receptors?
Feem ntau, sensory receptors teb rau ib qho ntawm plaub lub ntsiab stimuli:
- Tshuaj (chemoreceptors)
- Kub (thermoreceptors)
- Siab (mechanoreceptors)
- Lub teeb (photoreceptors)
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