scholarly journals Phosphorylation on threonine 11 of β-dystrobrevin alters its interaction with kinesin heavy chain

FEBS Journal ◽  
2012 ◽  
Vol 279 (22) ◽  
pp. 4131-4144 ◽  
Author(s):  
Federica Fratini ◽  
Gianfranco Macchia ◽  
Paola Torreri ◽  
Andrea Matteucci ◽  
Anna Maria Salzano ◽  
...  
2005 ◽  
Vol 354 (4) ◽  
pp. 872-882 ◽  
Author(s):  
Marina Ceccarini ◽  
Paola Torreri ◽  
Dario Giuseppe Lombardi ◽  
Gianfranco Macchia ◽  
Pompeo Macioce ◽  
...  

1991 ◽  
Vol 73 (2-3) ◽  
pp. 18a-18a ◽  
Author(s):  
Abdeljelil Jellali ◽  
Irina Surgucheva ◽  
Vera Jancsik ◽  
Dominique Filliol ◽  
Alvaro Rendon

2000 ◽  
Vol 11 (4) ◽  
pp. 1329-1343 ◽  
Author(s):  
Robert P. Brendza ◽  
Kathy B. Sheehan ◽  
F.R. Turner ◽  
William M. Saxton

Null mutations in the Drosophila Kinesin heavy chain gene (Khc), which are lethal during the second larval instar, have shown that conventional kinesin is critical for fast axonal transport in neurons, but its functions elsewhere are uncertain. To test other tissues, single imaginal cells in young larvae were rendered null for Khc by mitotic recombination. Surprisingly, the null cells produced large clones of adult tissue. The rates of cell proliferation were not reduced, indicating that conventional kinesin is not essential for cell growth or division. This suggests that in undifferentiated cells vesicle transport from the Golgi to either the endoplasmic reticulum or the plasma membrane can proceed at normal rates without conventional kinesin. In adult eye clones produced by null founder cells, there were some defects in differentiation that caused mild ultrastructural changes, but they were not consistent with serious problems in the positioning or transport of endoplasmic reticulum, mitochondria, or vesicles. In contrast, defective cuticle deposition by highly elongated Khc null bristle shafts suggests that conventional kinesin is critical for proper secretory vesicle transport in some cell types, particularly ones that must build and maintain long cytoplasmic extensions. The ubiquity and evolutionary conservation of kinesin heavy chain argue for functions in all cells. We suggest interphase organelle movements away from the cell center are driven by multilayered transport mechanisms; that is, individual organelles can use kinesin-related proteins and myosins, as well as conventional kinesin, to move toward the cell periphery. In this case, other motors can compensate for the loss of conventional kinesin except in cells that have extremely long transport tracks.


1999 ◽  
Vol 112 (21) ◽  
pp. 3691-3702 ◽  
Author(s):  
W.L. Severt ◽  
T.U. Biber ◽  
X. Wu ◽  
N.B. Hecht ◽  
R.J. DeLorenzo ◽  
...  

Ribonucleoprotein particles (RNPs) are thought to be key players in somato-dendritic sorting of mRNAs in CNS neurons and are implicated in activity-directed neuronal remodeling. Here, we use reporter constructs and gel mobility shift assays to show that the testis brain RNA-binding protein (TB-RBP) associates with mRNPs in a sequence (Y element) dependent manner. Using antisense oligonucleotides (anti-ODN), we demonstrate that blocking the TB-RBP Y element binding site disrupts and mis-localizes mRNPs containing (alpha)-calmodulin dependent kinase II (alpha)-CAMKII) and ligatin mRNAs. In addition, we show that suppression of kinesin heavy chain motor protein alters only the localization of (alpha)-CAMKII mRNA. Thus, differential sorting of mRNAs involves multiple mRNPs and selective motor proteins permitting localized mRNAs to utilize common mechanisms for shared steps.


1995 ◽  
Vol 270 (8) ◽  
pp. 3926-3931 ◽  
Author(s):  
Edgar C. Young ◽  
Elise Berliner ◽  
Hansraj K. Mahtani ◽  
Bernardo Perez-Ramirez ◽  
Jeff Gelles

Neuron ◽  
1991 ◽  
Vol 6 (1) ◽  
pp. 113-122 ◽  
Author(s):  
Anthony J. Otsuka ◽  
Ayyamperumal Jeyaprakash ◽  
Jaime García-Añoveros ◽  
Lan Zhao Tang ◽  
Gregory Fisk ◽  
...  

2006 ◽  
Vol 173 (4) ◽  
pp. 545-557 ◽  
Author(s):  
Elizabeth E. Glater ◽  
Laura J. Megeath ◽  
R. Steven Stowers ◽  
Thomas L. Schwarz

Mitochondria are distributed within cells to match local energy demands. We report that the microtubule-dependent transport of mitochondria depends on the ability of milton to act as an adaptor protein that can recruit the heavy chain of conventional kinesin-1 (kinesin heavy chain [KHC]) to mitochondria. Biochemical and genetic evidence demonstrate that kinesin recruitment and mitochondrial transport are independent of kinesin light chain (KLC); KLC antagonizes milton's association with KHC and is absent from milton–KHC complexes, and mitochondria are present in klc −/− photoreceptor axons. The recruitment of KHC to mitochondria is, in part, determined by the NH2 terminus–splicing variant of milton. A direct interaction occurs between milton and miro, which is a mitochondrial Rho-like GTPase, and this interaction can influence the recruitment of milton to mitochondria. Thus, milton and miro are likely to form an essential protein complex that links KHC to mitochondria for light chain–independent, anterograde transport of mitochondria.


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