Abstract:
:The distribution of the catalytic and regulatory subunits of the cAMP-dependent protein kinase between cytoplasm and nucleus was determined during the development of Dictyostelium discoideum. In vegetative amoebae approximately 2% of the subunits were in the nucleus. During development there was an approximately 5-fold increase in total soluble cAMP-dependent protein kinase and a 15- to 30-fold increase of enzyme in the nuclear fraction. There was a reverse translocation from nucleus to cytoplasm, when Tipped Aggregates were disrupted and the resultant amoebae incubated in single-cell suspension. The addition of cAMP to these single-cell suspensions brought about the reentry of the subunits into the nucleus. The findings are discussed in relation to the potential role of the cAMP-dependent protein kinase in the regulation of mRNA and protein synthesis.
journal_name
Dev Bioljournal_title
Developmental biologyauthors
Woffendin C,Chambers TC,Schaller KL,Leichtling BH,Rickenberg HVdoi
10.1016/0012-1606(86)90221-6subject
Has Abstractpub_date
1986-05-01 00:00:00pages
1-8issue
1eissn
0012-1606issn
1095-564Xpii
0012-1606(86)90221-6journal_volume
115pub_type
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