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Proteinum G

E Vicipaedia
Exemplum proteinorum G; hic phosducinum-transducinum complexus beta-gamma (carulee-rubre).

Proteina G vel guanino nucleotido iungentia proteina est familia proteinorum GTPasum, quae epitona molecularia intracellularia, ibi signa transmittendi, agunt.

Littera G ad contextum cum substantiis chemicis Guanosini TriPhosphati (GTP) et Guanosini DiPhosphati (GDP) respicit. Proteinis G inter ambas substantias (GTP et GDP) mutari posse facultas, ut epitonium electricum, ergo epitonium moleculare, est. Receptorio copulato activo ab GDP format GTP (signum AD, accensum), inactivo contra ex GTP format GDP (signum EX, extinctum).

Duo classes proteinorum G descriptae sunt:

Munera proteinorum G intra cellulam magnum momentum habet.

Anno 1994 Martinus Rodbell et Alfredus G. Gilman Praemium Nobelianum physiologiae et medicinae ratione inventionis proteinorum G et operae signi transducti accepit[1] atque 2004 Linda B. Buck et Richardus Axel Nobelianum Medicinae Praemium suorum officiorum proteinorum G causa accepit[2]

  1. De Praemio Noleliano Medicinae anno 1994
  2. Nobelprize.org de inventione proteinorum G (2004). (Anglice)

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