The pleckstrin-homology-domain-containing protein PLEKHA7 was recently identified as a protein linking the E-cadherin-p120 ctn complex to the microtubule cytoskeleton. Here we characterize the expression, tissue distribution and subcellular localization of PLEKHA7 by immunoblotting, immunofluorescence microscopy, immunoelectron microscopy, and northern blotting in mammalian tissues. Anti-PLEKHA...

Haemophilus parainfluenzae synthesizes an outer membrane protein adhesin which mediates binding to oral streptococci, salivary pellicle, and neuraminidase-treated erythrocytes. An indirect gold labeling technique and immunoelectron microscopy verified the location of this outer membrane protein. Further, a clustering of gold particles was observed in irregular patches at the cell surface.

The use of biochemical fractionation, immunofluorescence laser-scan ning confocal microscopy, and immunoelectron microscopy with mouse anti-human bcl-2 monoclonal antibody to analyze the subcellular local ization of the bcl-2 gene product revealed the protein prominently in the nuclear envelope, endoplasmic reticulum membrane, and mitochondrial membranes. Electron microscopy at high magnificati...

The mechanism of actin incorporation and turnover in the nerve growth cone was examined by immunoelectron microscopy and low-light-level video microscopy of cultured neurons injected with biotin-labeled actin or fluorescently labeled actin. We first determined the sites of actin incorporation into the cytoskeleton of growth cones by immunoelectron microscopy of cultured neurons injected with bi...

Coiled bodies are a special type of small round nuclear body, composed of coiled fibers and granules, especially prominent in the nucleoplasm of highly active cells (Brasch and Ochs (1992) Exp. Cell Res. 202, 211-223). Although no specific function has been assigned to coiled bodies, they contain spliceosome snRNAs and proteins, as well as the nucleolar U3 RNA-associated protein fibrillarin. In...

The kidney is considered the most important organ of excretion eliminating the body from metabolic waste products. The nephron is the functional unit of the kidney, composed of a cluster of capillaries named glomerulus, and a tubular system. The blood is filtered in the glomerular capillaries across the glomerular filtration barrier. The barrier is an intricate biological structure composed of ...