Abstract:
:The subcellular distribution of the type II enzyme of cAMP-dependent protein kinase (cAMP-dPK II) in epithelial and fibroblastic cells was determined by indirect immunofluorescence microscopy. In interphase cells both regulatory (R II) and catalytic (C) subunits were concentrated in a perinuclear area. By comparison of the R II distribution with the location of a bona fide Golgi membrane constituent, this area was identified as the Golgi complex. The cytochemical localization of R II was confirmed by subcellular fractionation. In addition, cAMP-dPK II was associated with microtubule-organizing centers, in particular with mitotic spindle poles. These distributions of cAMP-dPK II probably represent important factors in mediating the effects of cAMP on basic cellular activities ranging from secretion and proliferation to cell shape and motility.
journal_name
Celljournal_title
Cellauthors
Nigg EA,Schäfer G,Hilz H,Eppenberger HMdoi
10.1016/s0092-8674(85)80084-2subject
Has Abstractpub_date
1985-07-01 00:00:00pages
1039-51issue
3eissn
0092-8674issn
1097-4172pii
S0092-8674(85)80084-2journal_volume
41pub_type
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