The 47kDa Akt substrate associates with phosphodiesterase 3B and regulates its level in adipocytes.

Abstract:

:We have previously described a novel putative 47kDa substrate for the protein kinase Akt (designated AS47) in 3T3-L1 adipocytes. In the present study, we have found by co-immunoprecipitation that AS47 was associated with cyclic nucleotide phosphodiesterase 3B (PDE3B) in lysates of 3T3-L1 adipocytes. The patterns of expression of AS47 and PDE3B upon 3T3-L1 adipocyte differentiation, among mouse tissues, and in adipocytes with and without the transcription factor C/EBPalpha were virtually coincident. Partial knockdown of AS47 in 3T3-L1 adipocytes with shRNA resulted in a similar reduction in PDE3B protein. These results indicate that AS47 exists in a complex with PDE3B in adipocytes and that the amount of AS47 protein regulates the amount of PDE3B.

authors

Chavez JA,Gridley S,Sano H,Lane WS,Lienhard GE

doi

10.1016/j.bbrc.2006.02.091

subject

Has Abstract

pub_date

2006-04-21 00:00:00

pages

1218-22

issue

4

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(06)00396-2

journal_volume

342

pub_type

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