Src signaling in a low-complexity unicellular kinome.
Src signaling in a low-complexity unicellular kinome.
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DOI:
10.1038/s41598-018-23721-8
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发表时间:
2018-03-29
影响因子:
4.6
通讯作者:
Miller WT
中科院分区:
文献类型:
--
作者:
Suga H;Miller WT
Creolimax fragrantissima is a member of the ichthyosporean clade, the earliest branching holozoan lineage. The kinome of Creolimax is markedly reduced as compared to those of metazoans. In particular, Creolimax possesses a single non-receptor tyrosine kinase: CfrSrc, the homolog of c-Src kinase. CfrSrc is an active tyrosine kinase, and it is expressed throughout the lifecycle of Creolimax. In animal cells, the regulatory mechanism for Src involves tyrosine phosphorylation at a C-terminal site by Csk kinase. The lack of Csk in Creolimax suggests that a different mode of negative regulation must exist for CfrSrc. We demonstrate that CfrPTP-3, one of the 7 tyrosine-specific phosphatases (PTPs) in Creolimax, suppresses CfrSrc activity in vitro and in vivo. Transcript levels of CfrPTP-3 and two other PTPs are significantly higher than that of CfrSrc in the motile amoeboid and sessile multinucleate stages of the Creolimax life cycle. Thus, in the context of a highly reduced kinome, a pre-existing PTP may have been co-opted for the role of Src regulation. Creolimax represents a unique model system to study the adaptation of tyrosine kinase signaling and regulatory mechanisms.
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影响因子:
2.9
作者:
Li, Wanqing;Scarlata, Suzanne;Miller, W. Todd
通讯作者:
Miller, W. Todd
DOI:
10.1073/pnas.0801314105
发表时间:
2008-07-15
影响因子:
11.1
作者:
Manning, Gerard;Young, Susan L.;Zhai, Yufeng
通讯作者:
Zhai, Yufeng
影响因子:
16.8
作者:
Hui E;Vale RD
通讯作者:
Vale RD
影响因子:
2.9
作者:
BARKER, SC;KASSEL, DB;KNIGHT, WB
通讯作者:
KNIGHT, WB
影响因子:
14.8
作者:
Mueller, Susanne;Chaikuad, Apirat;Knapp, Stefan
通讯作者:
Knapp, Stefan