Cyclic nucleotide phosphodiesterase activities in rat erythrocytes

Erythrocyte soluble phosphodiesterase activities show at least two interconvertible states: 'aggregated' and 'non-aggregated'. In the former state the existence of a high affinity component for cyclic AMP is favoured and the system is more active with cyclic AMP than with cyclic...

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Autores principales: Téllez-Iñón, M.T., Torres, H.N.
Formato: JOUR
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rat
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03008177_v43_n3_p161_TellezInon
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spelling todo:paper_03008177_v43_n3_p161_TellezInon2023-10-03T15:17:49Z Cyclic nucleotide phosphodiesterase activities in rat erythrocytes Téllez-Iñón, M.T. Torres, H.N. cyclic amp cyclic gmp cyclic nucleotide phosphodiesterase animal experiment blood and hemopoietic system erythrocyte rat 3',5'-Cyclic-GMP Phosphodiesterase 3',5'-Cyclic-Nucleotide Phosphodiesterase Animal Chromatography, Gel Erythrocytes Isoelectric Focusing Kinetics Magnesium Magnesium Chloride Male Rats Rats, Inbred Strains Support, Non-U.S. Gov't Erythrocyte soluble phosphodiesterase activities show at least two interconvertible states: 'aggregated' and 'non-aggregated'. In the former state the existence of a high affinity component for cyclic AMP is favoured and the system is more active with cyclic AMP than with cyclic GMP as substrate. When the system is in the 'non-aggregated state', no activity with cyclic GMP is detected. Conversion to the 'non-aggregated state' is enhanced by dilution or by addition of magnesium ions. Upon isoelectric focusing of erythrocyte soluble extracts, phosphodiesterase activities can be resolved in two peaks: one specific for cyclic AMP located at pH 4.66 and the other specific for cyclic GMP focused at pH 4.95. Evidence would indicate that aggregation affects the enzyme specific for cyclic AMP. © 1982 Martinus Nijhoff/Dr W. Junk Publishers. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03008177_v43_n3_p161_TellezInon
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic cyclic amp
cyclic gmp
cyclic nucleotide phosphodiesterase
animal experiment
blood and hemopoietic system
erythrocyte
rat
3',5'-Cyclic-GMP Phosphodiesterase
3',5'-Cyclic-Nucleotide Phosphodiesterase
Animal
Chromatography, Gel
Erythrocytes
Isoelectric Focusing
Kinetics
Magnesium
Magnesium Chloride
Male
Rats
Rats, Inbred Strains
Support, Non-U.S. Gov't
spellingShingle cyclic amp
cyclic gmp
cyclic nucleotide phosphodiesterase
animal experiment
blood and hemopoietic system
erythrocyte
rat
3',5'-Cyclic-GMP Phosphodiesterase
3',5'-Cyclic-Nucleotide Phosphodiesterase
Animal
Chromatography, Gel
Erythrocytes
Isoelectric Focusing
Kinetics
Magnesium
Magnesium Chloride
Male
Rats
Rats, Inbred Strains
Support, Non-U.S. Gov't
Téllez-Iñón, M.T.
Torres, H.N.
Cyclic nucleotide phosphodiesterase activities in rat erythrocytes
topic_facet cyclic amp
cyclic gmp
cyclic nucleotide phosphodiesterase
animal experiment
blood and hemopoietic system
erythrocyte
rat
3',5'-Cyclic-GMP Phosphodiesterase
3',5'-Cyclic-Nucleotide Phosphodiesterase
Animal
Chromatography, Gel
Erythrocytes
Isoelectric Focusing
Kinetics
Magnesium
Magnesium Chloride
Male
Rats
Rats, Inbred Strains
Support, Non-U.S. Gov't
description Erythrocyte soluble phosphodiesterase activities show at least two interconvertible states: 'aggregated' and 'non-aggregated'. In the former state the existence of a high affinity component for cyclic AMP is favoured and the system is more active with cyclic AMP than with cyclic GMP as substrate. When the system is in the 'non-aggregated state', no activity with cyclic GMP is detected. Conversion to the 'non-aggregated state' is enhanced by dilution or by addition of magnesium ions. Upon isoelectric focusing of erythrocyte soluble extracts, phosphodiesterase activities can be resolved in two peaks: one specific for cyclic AMP located at pH 4.66 and the other specific for cyclic GMP focused at pH 4.95. Evidence would indicate that aggregation affects the enzyme specific for cyclic AMP. © 1982 Martinus Nijhoff/Dr W. Junk Publishers.
format JOUR
author Téllez-Iñón, M.T.
Torres, H.N.
author_facet Téllez-Iñón, M.T.
Torres, H.N.
author_sort Téllez-Iñón, M.T.
title Cyclic nucleotide phosphodiesterase activities in rat erythrocytes
title_short Cyclic nucleotide phosphodiesterase activities in rat erythrocytes
title_full Cyclic nucleotide phosphodiesterase activities in rat erythrocytes
title_fullStr Cyclic nucleotide phosphodiesterase activities in rat erythrocytes
title_full_unstemmed Cyclic nucleotide phosphodiesterase activities in rat erythrocytes
title_sort cyclic nucleotide phosphodiesterase activities in rat erythrocytes
url http://hdl.handle.net/20.500.12110/paper_03008177_v43_n3_p161_TellezInon
work_keys_str_mv AT tellezinonmt cyclicnucleotidephosphodiesteraseactivitiesinraterythrocytes
AT torreshn cyclicnucleotidephosphodiesteraseactivitiesinraterythrocytes
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