MTG8 proto-oncoprotein interacts with the regulatory subunit of type II cyclic AMP-dependent protein kinase in lymphocytes

被引：45

作者：

Fukuyama, T

Sueoka, E

Sugio, Y

Otsuka, T

Niho, Y

Akagi, K

Kozu, T ^{[1
]}

机构：

[1] Saitama Canc Ctr, Res Inst, Ina, Saitama 3620806, Japan

[2] Kyushu Univ Hosp, Ctr Canc, Fukuoka 8128582, Japan

[3] Kyushu Univ, Grad Sch Med Sci, Fac Med, Dept Med & Biosyst Sci, Fukuoka 8128582, Japan

来源：

ONCOGENE | 2001年 / 20卷 / 43期

关键词：

AKAP; AML1 (RUNX-1); lymphocyte; MTG8 (ETO); PKA RII alpha;

D O I：

10.1038/sj.onc.1204794

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

AML1-MTG8 chimeric oncogene is generated in acute myelogenous leukemia with t(8;21), and seems to be responsible for the pathogenesis of the disease. However, the role of MTG8 is ambiguous. Here we found that MTG8 interacted with the regulatory subunit of type II cyclic AMP-dependent protein kinase (PKA RII alpha). The binding site of MTG8 was NHR3 domain, and that of RII alpha was the N-terminus for interacting with PKA anchoring proteins (AKAPs). NHR3 contains a putative alpha -amphipathic helix which is characteristic in binding of AKAPs with RII. Indirect immunofluorescence microscopy showed that MTG8 and RII alpha were overlapped at the centrosome-Golgi area in lymphocytes. These findings suggest that MTG8 may function as an AKAP at the Centrosome-Golgi area in lymphocytes.

引用

页码：6225 / 6232

页数：8

共 48 条

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