transducin

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transducin /trans·du·cin/ (trans-doo´sin) a G protein of the disk membrane of the retinal rods that interacts with activated rhodopsin and participates in the triggering of a nerve impulse in vision.

transducin

GDP/GTP-regulated protein, composed of three subunits designated α, β and γ, involved in the visual process. Photoactivated rhodopsin activates transducin to bind GTP, the transducin-GTP complex activates G-phosphodiesterase (G-PDE) by removing the inhibitory γ-subunit of G-PDE. The activated G-phosphodiesterase catalyzes the conversion of cGMP to GMP. Since the major action of cGMP is to open Na+-channels, the decrease in cGMP closes the Na+-channels leading to hyperpolarization of the nerve.

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No references found			Phosducin is a light-regulated phosphoprotein which binds to subunits of transducin (Lee et al. Stereology and some structural correlates of retinal and ... by Mayhew, Terry M. / Image Analysis and Stereology Activation of pertussis toxin sensitive G-protein in membranes of SH-SY5Y human neuroblastoma cells and bovine transducin by ethanol. Critical care aspects of alcohol abuse by Soubani, Ayman O. / Southern Medical Journal A photon hitting a single rhodopsin molecule might activate hundreds of transducin molecules. Bright idea: protein relocation helps eyes adapt to light. (This Week) by Travis, J. / Science News			transcription transcription factor transcultural Transcultural Medicine transcultural nursing transcutaneous transcutaneous cardiac pacemaker transcutaneous drug delivery transcutaneous electrical nerve stimulation transcutaneous electrical nerve stimulation 1 transcutaneous electrical nerve stimulation 2 transcutaneous nerve stimulation transcutaneous oxygen TransCyte transcytosis transdermal transdermal delivery system transdermal drug delivery transdermal patch transdermal scopolamine transdiaphragmatic recurrence transdifferentiation transduce transducer transducer cell transducin transductant transduction transdural transect transection transepidermal elimination transepithelial transesophageal transesophageal echocardiography transethmoidal transfaunation transfection transfemoral transfemoral amputation transfer transfer 1 transfer 2 transfer agreement transfer belt transfer DNA transfer factor transfer factor of lungs transfer performance transfer RNA transferase			transdominant mutation transdominant mutation transdominant mutation transdominant mutation transduce transduce transduce transduced transduced transduced transducer transducer transducer transducer Transducer Assembly Transducer Bus Interface Module transducer cell Transducer Electronic Data Sheet Transducer Evaluation Center Transducer Kit transducer loss Transducer Markup Language Transducer Power Gain Transducer, Acoustic Transducers Transducers Transducers transduces transduces transduces transducin transducing transducing transducing transducing vector transductant transductant transduction transduction transduction transduction map transduction map transduction map transduction map transductional transductional transductional transductions transductions transductions Transductive inference Transductive inference Transductive inference Transductive logic Transductive logic Transductive logic Transductive reasoning Transductive reasoning Transductive reasoning Transductive Support Vector Machines Transductor

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