Aggregation states of cyclic nucleotide phosphodiesterase of murine thymocytes.

Abstract:

:In murine thymocytes cyclic nucleotide phosphodiesterase is represented by cAMP- and cGMP-specific forms. cAMP and cGMP phosphodiesterase activities showed anomalous kinetic behaviour indicative of 'low' and 'high' affinity enzyme forms. Sucrose density gradient centrifugation resolved only 'low' affinity forms of cAMP and cGMP phosphodiesterases. Gel filtration on Ultragel Aca 34 column showed that cAMP and cGMP phosphodiesterases are probably oligomeric enzymes. Storage of enzyme preparation at 4 degrees C for 24-48 h led to a decrease of higher molecular weight form and enhancement of cAMP and cGMP phosphodiesterase activities.

journal_name

Cell Biochem Funct

authors

Sobolev AS,Rybalkin SD

doi

10.1002/cbf.290040307

subject

Has Abstract

pub_date

1986-07-01 00:00:00

pages

205-11

issue

3

eissn

0263-6484

issn

1099-0844

journal_volume

4

pub_type

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