Cordon bleu promotes the assembly of brush border microvilli
نویسندگان
چکیده
منابع مشابه
Cordon bleu promotes the assembly of brush border microvilli
Microvilli are actin-based protrusions found on the surface of diverse cell types, where they amplify membrane area and mediate interactions with the external environment. In the intestinal tract, these protrusions play central roles in nutrient absorption and host defense and are therefore essential for maintaining homeostasis. However, the mechanisms controlling microvillar assembly remain po...
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In the proximal tubule of the kidney, Na(+) and HCO(3)(-) reabsorption vary proportionally with changes in axial flow rate. This feature is a critical component of glomerulotubular balance, but the basic mechanism by which the tubule epithelial cells sense axial flow remains unexplained. We propose that the microvilli, which constitute the brush border, are physically suitable to act as a mecha...
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Cordon-Bleu is, like Spire, a member of the growing family of WH2 repeat proteins, which emerge as versatile regulators of actin dynamics. They are expressed in morphogenetic and patterning processes and nucleate actin assembly in vitro. Here, we show that Cordon-Bleu works as a dynamizer of actin assembly by combining many properties of profilin with weak filament nucleating and powerful filam...
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Polymerization of actin filaments powers many dynamic cellular events and is directed by a small group of actin nucleators. In this issue, Ahuja et al. (2007) identify and characterize a new actin nucleator called cordon-bleu (Cobl) that may drive morphogenesis of the central nervous system during development.
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E very cell lining the small intestine bristles with thousands of tightly packed microvilli that project into the gut lumen, forming a brush border that absorbs nutrients and protects the body from intestinal bacteria. McConnell et al. now fi nd that microvilli extend their functional reach even further using a molecular motor to send vesicles packed with gut enzymes out into the lumen to get a...
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ژورنال
عنوان ژورنال: Molecular Biology of the Cell
سال: 2015
ISSN: 1059-1524,1939-4586
DOI: 10.1091/mbc.e15-06-0443