منابع مشابه
Shaping up plants
is seeing the shape of things to come. In two recent papers, he addresses how cell growth influences the shape of plant organs. The first article, by Utpal Nath, Coen, and colleagues, looks at a quality of leaves often taken for granted—flatness. " Flatness is not a natural outcome of growth, " says Coen. " An organism has to coordinate lots of things to keep leaves flat. " According to the gro...
متن کاملGradients Are Shaping Up
In animal embryos, morphogen gradients determine tissue patterning and morphogenesis. Shyer et al. provide evidence that, during vertebrate gut formation, tissue folding generates graded activity of signals required for subsequent steps of gut growth and differentiation, thereby revealing an intriguing link between tissue morphogenesis and morphogen gradient formation.
متن کاملMembrane proteins: shaping up.
Over recent years, much progress has been made in the identification and characterization of factors involved in the biosynthesis of integral membrane proteins of the helix-bundle type. In addition, our knowledge of membrane protein structure and the forces stabilizing helix-helix interactions in a lipid environment is expanding rapidly. However, it is still not clear how a membrane protein fol...
متن کاملShaping Up Mitochondrion in Motion
We previously reported that hair follicle dermal papilla cells (HFDPCs) show two types of mitochondria, which are filamentous (untangled) and rounded (tangled) mitochondria. Plateletderived growth factor-AA (PDGF-AA) shifts the population balance toward the filamentous type that produces more adenosine triphosphate (ATP) than the other. In addition, the cells show filamentous mitochondria durin...
متن کاملShaping up nucleic acid computation.
Nucleic acid-based nanotechnology has always been perceived as novel, but has begun to move from theoretical demonstrations to practical applications. In particular, the large address spaces available to nucleic acids can be exploited to encode algorithms and/or act as circuits and thereby process molecular information. In this review we not only revisit several milestones in the field of nucle...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 2003
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb1611rr1