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Science 2 April 1993:
Vol. 260. no. 5104, pp. 88 - 91
DOI: 10.1126/science.8385367

Articles

Science, Vol 260, Issue 5104, 88-91
Copyright © 1993 by American Association for the Advancement of Science


articles

Phosphatidylinositol 3-kinase encoded by yeast VPS34 gene essential for protein sorting

PV Schu, K Takegawa, MJ Fry, JH Stack, MD Waterfield, and SD Emr

Division of Cellular and Molecular Medicine, University of California, San Diego, School of Medicine.

The VPS34 gene product (Vps34p) is required for protein sorting to the lysosome-like vacuole of the yeast Saccharomyces cerevisiae. Vps34p shares significant sequence similarity with the catalytic subunit of bovine phosphatidylinositol (PI) 3-kinase [the 110-kilodalton (p110) subunit of PI 3-kinase], which is known to interact with activated cell surface receptor tyrosine kinases. Yeast strains deleted for the VPS34 gene or carrying vps34 point mutations lacked detectable PI 3-kinase activity and exhibited severe defects in vacuolar protein sorting. Overexpression of Vps34p resulted in an increase in PI 3-kinase activity, and this activity was specifically precipitated with antisera to Vps34p. VPS34 encodes a yeast PI 3-kinase, and this enzyme appears to regulate intracellular protein trafficking decisions.


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   Abstract »    PDF »
Complementation Analysis in PtdInsP Kinase-deficient Yeast Mutants Demonstrates That Schizosaccharomyces pombe and Murine Fab1p Homologues Are Phosphatidylinositol 3-Phosphate 5-Kinases.
R. K. McEwen, S. K. Dove, F. T. Cooke, G. F. Painter, A. B. Holmes, A. Shisheva, Y. Ohya, P. J. Parker, and R. H. Michell (1999)
J. Biol. Chem. 274, 33905-33912
   Abstract »    Full Text »    PDF »
Direct Involvement of Phosphatidylinositol 4-Phosphate in Secretion in the Yeast Saccharomyces cerevisiae.
H. Hama, E. A. Schnieders, J. Thorner, J. Y. Takemoto, and D. B. DeWald (1999)
J. Biol. Chem. 274, 34294-34300
   Abstract »    Full Text »    PDF »
SYK Is Upstream of Phosphoinositide 3-Kinase in B Cell Receptor Signaling.
L. O. Beitz, D. A. Fruman, T. Kurosaki, L. C. Cantley, and A. M. Scharenberg (1999)
J. Biol. Chem. 274, 32662-32666
   Abstract »    Full Text »    PDF »
Vasopressin stimulates sodium transport in A6 cells via a phosphatidylinositide 3-kinase-dependent pathway.
R. S. Edinger, M. D. Rokaw, and J. P. Johnson (1999)
Am J Physiol Renal Physiol 277, F575-F579
   Abstract »    Full Text »    PDF »
Augmentation of CTLA-4 expression by wortmannin: involvement of lysosomal sorting properties of CTLA-4.
S. Oki, T. Kohsaka, and M. Azuma (1999)
Int. Immunol. 11, 1563-1571
   Abstract »    Full Text »    PDF »
Phosphoinositide–AP-2 Interactions Required for Targeting to Plasma Membrane Clathrin-coated Pits.
I. Gaidarov and J. H. Keen (1999)
J. Cell Biol. 146, 755-764
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Synergistic Role of the Phosphatidylinositol 3-Kinase and Mitogen-Activated Protein Kinase Cascade in the Regulation of Insulin Receptor Trafficking.
T. Sasaoka, T. Wada, H. Ishihara, Y. Takata, T. Haruta, I. Usui, M. Ishiki, and M. Kobayashi (1999)
Endocrinology 140, 3826-3834
   Abstract »    Full Text »
Protein Kinase Activity and Identification of a Toxic Effector Domain of the Target of Rapamycin TOR Proteins in Yeast.
C. M. Alarcon, J. Heitman, and M. E. Cardenas (1999)
Mol. Biol. Cell 10, 2531-2546
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Vacuole Fusion Regulated by Protein Phosphatase 2C in Fission Yeast.
F. Gaits and P. Russell (1999)
Mol. Biol. Cell 10, 2647-2654
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The Phosphatidylinositol 3-Phosphate Binding Protein Vac1p Interacts with a Rab GTPase and a Sec1p Homologue to Facilitate Vesicle-mediated Vacuolar Protein Sorting.
G. G. Tall, H. Hama, D. B. DeWald, and B. F. Horazdovsky (1999)
Mol. Biol. Cell 10, 1873-1889
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SAC1-like Domains of Yeast SAC1, INP52, and INP53 and of Human Synaptojanin Encode Polyphosphoinositide Phosphatases.
S. Guo, L. E. Stolz, S. M. Lemrow, and J. D. York (1999)
J. Biol. Chem. 274, 12990-12995
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Phosphoinositide 3-Kinases and Their FYVE Domain-containing Effectors as Regulators of Vacuolar/Lysosomal Membrane Trafficking Pathways.
A. E. Wurmser, J. D. Gary, and S. D. Emr (1999)
J. Biol. Chem. 274, 9129-9132
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FYVE-finger proteins--effectors of an inositol lipid.
H Stenmark and R Aasland (1999)
J. Cell Sci. 112, 4175-4183
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New Perspectives on Mechanisms Involved in Generating Epithelial Cell Polarity.
C. YEAMAN, K. K. GRINDSTAFF, and W. J. NELSON (1999)
Physiol Rev 79, 73-98
   Abstract »    Full Text »    PDF »
Distinct Roles for the p110alpha and hVPS34 Phosphatidylinositol 3'-Kinases in Vesicular Trafficking, Regulation of the Actin Cytoskeleton, and Mitogenesis.
U. Siddhanta, J. McIlroy, A. Shah, Y. Zhang, and J. M. Backer (1998)
J. Cell Biol. 143, 1647-1659
   Abstract »    Full Text »    PDF »



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