Functional molecular evolution of a GTP sensing kinase: PI5P4Kβ.
Functional molecular evolution of a GTP sensing kinase: PI5P4Kβ.
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DOI:
10.1111/febs.16763
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发表时间:
2023-09
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影响因子:
--
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中科院分区:
文献类型:
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Over 4 billion years of evolution, multiple mutations, including nucleotide substitutions, gene and genome duplications and recombination, have established de novo genes that translate into proteins with novel properties essential for high-order cellular functions. However, molecular processes through which a protein evolutionarily acquires a novel function are mostly speculative. Recently, we have provided evidence for a potential evolutionary mechanism underlying how, in mammalian cells, phosphatidylinositol 5-phosphate 4-kinase β (PI5P4Kβ) evolved into a GTP sensor from ATP-utilizing kinase. Mechanistically, PI5P4Kβ has acquired the guanine efficient association (GEA) motif by mutating its nucleotide base recognition sequence, enabling the evolutionary transition from an ATP-dependent kinase to a distinct GTP/ATP dual kinase with its KM for GTP falling into physiological GTP concentrations—the genesis of GTP sensing activity. Importantly, the GTP sensing activity of PI5P4Kβ is critical for the manifestation of cellular metabolism and tumourigenic activity in the multicellular organism. The combination of structural, biochemical and biophysical analyses used in our study provides a novel framework for analysing how a protein can evolutionarily acquire a novel activity, which potentially introduces a critical function to the cell.
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影响因子:
64.8
作者:
Rameh, LE;Tolias, KF;Cantley, LC
通讯作者:
Cantley, LC
DOI:
10.1016/0065-2571(95)00005-4
发表时间:
1996-01-01
期刊:
ADVANCES IN ENZYME REGULATION, VOL 36
影响因子:
--
作者:
Loijens, JC;Boronenkov, IV;Anderson, RA
通讯作者:
Anderson, RA
影响因子:
2.1
作者:
Jeffery, Constance J.
通讯作者:
Jeffery, Constance J.
影响因子:
4.1
作者:
Bultsma, Yvette;Keune, Willem-Jan;Divecha, Nullin
通讯作者:
Divecha, Nullin
影响因子:
4.8
作者:
Loijens, JC;Anderson, RA
通讯作者:
Anderson, RA