Guanosine 3′,5′‐monophosphate and Na or Ca ions affect the transmembrane movements of the same pool of intradiskal ions. Extradiskal Na ions activate the efflux of intradiskal Na ions. Extradiskal Ca ions activate the efflux of intradiskal Rb ions. Na and Ca ions activate Na/Ca or Ca/Ca exchange, as previously described. cGMP activates a membrane permeability for all the cations tested, as previously described. The reciprocal relations between cGMP and the other pathways for ion movements through disk membranes are systematically examined. Some analogies between the cGMP‐activated permeability of the disk membranes and the light‐sensitive conductance of the rod plasma outer membrane are discussed. Copyright © 1985, Wiley Blackwell. All rights reserved
Effect of cGMP and cations on the permeability of cattle retinal disks / Caretta, A.. - In: EUROPEAN JOURNAL OF BIOCHEMISTRY. - ISSN 0014-2956. - 148:3(1985), pp. 599-606. [10.1111/j.1432-1033.1985.tb08882.x]
Effect of cGMP and cations on the permeability of cattle retinal disks
CARETTA A.
Investigation
1985-01-01
Abstract
Guanosine 3′,5′‐monophosphate and Na or Ca ions affect the transmembrane movements of the same pool of intradiskal ions. Extradiskal Na ions activate the efflux of intradiskal Na ions. Extradiskal Ca ions activate the efflux of intradiskal Rb ions. Na and Ca ions activate Na/Ca or Ca/Ca exchange, as previously described. cGMP activates a membrane permeability for all the cations tested, as previously described. The reciprocal relations between cGMP and the other pathways for ion movements through disk membranes are systematically examined. Some analogies between the cGMP‐activated permeability of the disk membranes and the light‐sensitive conductance of the rod plasma outer membrane are discussed. Copyright © 1985, Wiley Blackwell. All rights reservedI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
