منابع مشابه
Kinetochore Fiber Maturation in PtK
Kinetochore microtubules (kMts) are a subset of spindle microtubules that bind directly to the kinetochore to form the kinetochore fiber (K-fiber). The K-fiber in turn interacts with the kinetochore to produce chromosome motion toward the attached spindle pole. We have examined K-fiber maturation in PtK 1 cells using same-cell video light microscopy/serial section EM. During congression, the ki...
متن کاملKinetochore microtubules in PTK cells
We have analyzed the fine structure of 10 chromosomal fibers from mitotic spindles of PtK1 cells in metaphase and anaphase, using electron microscopy of serial thin sections and computer image processing to follow the trajectories of the component microtubules (MTs) in three dimensions. Most of the kinetochore MTs ran from their kinetochore to the vicinity of the pole, retaining a clustered arr...
متن کاملTransepithelial PTK/PRK over complicated LASIK flaps.
To the Editor: We read with interest the recent contribution by Dr. William Bond (Bond WI. PRK over incomplete LASIK flap [letter]. J Refract Surg 2000;16:483). We are convinced that some variant of the technique he described, which we think is probably more appropriately referred to as transepithelial PTK/PRK, will eventually become the procedure of choice for the treatment of some patients wh...
متن کاملExpression of tetraspan protein CD63 activates protein-tyrosine kinase (PTK) and enhances the PTK-induced inhibition of ROMK channels.
In the present study, we tested the role of CD63 in regulating ROMK1 channels by protein-tyrosine kinase (PTK). Immunocytochemical staining shows that CD63 and receptor-linked tyrosine phosphatase alpha (RPTPalpha) are expressed in the cortical collecting duct and outer medulla collecting duct. Immunoprecipitation of tissue lysates from renal cortex and outer medulla or 293T cells transfected w...
متن کاملInterpolar spindle microtubules in PTK cells
Spindle microtubules (MTs) in PtK1 cells, fixed at stages from metaphase to telophase, have been reconstructed using serial sections, electron microscopy, and computer image processing. We have studied the class of MTs that form an interdigitating system connecting the two spindle poles (interpolar MTs or ipMTs) and their relationship to the spindle MTs that attach to kinetochores (kMTs). Viewe...
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ژورنال
عنوان ژورنال: JIV
سال: 2007
ISSN: 2620-5254,1907-9176
DOI: 10.21009/jiv.0201.5