The structure of the Myo4p globular tail and its function in ASH1 mRNA localization.
The structure of the Myo4p globular tail and its function in ASH1 mRNA localization.
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DOI:
10.1083/jcb.201002076
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发表时间:
2010-05-03
期刊:
影响因子:
--
通讯作者:
Niessing D
中科院分区:
文献类型:
--
作者:
Heuck A;Fetka I;Brewer DN;Hüls D;Munson M;Jansen RP;Niessing D
A conserved patch of amino acids in the globular tail of type V myosin binds She3p to localize ASH1 mRNA to the bud of dividing yeast cells. Type V myosin (MyoV)–dependent transport of cargo is an essential process in eukaryotes. Studies on yeast and vertebrate MyoV showed that their globular tails mediate binding to the cargo complexes. In Saccharomyces cerevisiae, the MyoV motor Myo4p interacts with She3p to localize asymmetric synthesis of HO 1 (ASH1) mRNA into the bud of dividing cells. A recent study showed that localization of GFP-MS2–tethered ASH1 particles does not require the Myo4p globular tail, challenging the supposed role of this domain. We assessed ASH1 mRNA and Myo4p distribution more directly and found that their localization is impaired in cells expressing globular tail–lacking Myo4p. In vitro studies further show that the globular tail together with a more N-terminal linker region is required for efficient She3p binding. We also determined the x-ray structure of the Myo4p globular tail and identify a conserved surface patch important for She3p binding. The structure shows pronounced similarities to membrane-tethering complexes and indicates that Myo4p may not undergo auto-inhibition of its motor domain.
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DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
DOI:
10.1083/jcb.200304030
发表时间:
2003-12-22
期刊:
The Journal of cell biology
影响因子:
--
作者:
Estrada P;Kim J;Coleman J;Walker L;Dunn B;Takizawa P;Novick P;Ferro-Novick S
通讯作者:
Ferro-Novick S
影响因子:
16.8
作者:
Dong, G;Hutagalung, AH;Reinisch, KM
通讯作者:
Reinisch, KM
影响因子:
10.5
作者:
Gu, W;Deng, YF;Singer, RH
通讯作者:
Singer, RH
影响因子:
3.3
作者:
Lapierre, LA;Kumar, R;Goldenring, JR
通讯作者:
Goldenring, JR