منابع مشابه
Epithelium: sticking it out, together.
SOME CELLS LIVE WITHIN A COMMUNITY of neighboring cells, restricted in time and space, most prominently interacting with cells of similar functions. Some cells live within fixed positions, surrounded on all sides by a loose forest of matrix proteins. Some cells live as nomads, wandering throughout the body, responding to needs as they arise. Each cell is part of an elaborate orchestra, coordina...
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f patience is a virtue, then Daniel Goodenough and Bruce Stevenson earned their wings in the pursuit of the first tight junction protein. Stevenson spent seven years as a graduate student with Goodenough (Harvard Medical School, Boston, MA) before the two worked out the conditions to purify fragile tight junction–enriched preparations from mouse liver (Stevenson and Goodenough, 1984). It was en...
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822 C RE D IT :N A SA T he plant hormone auxin affects many important aspects of plant growth and development. For example, auxin influences growth of plants relative to gravity (gravitropism) and light (phototropism), placement of leaf primordia, and the establishment of stem cell niches (1–4). These processes all depend on differences in the local concentrations of auxin. Such differential au...
متن کاملStructural biology
doesn't know which Academy member is handling the paper unless it is accepted. To make room for the extra papers to be submitted via track II, PNAS has reduced the number of papers a member is allowed to communicate to the journal annually from six to four. Does the new system work? Those who have tried it say that there are many frustrating teething problems. Apparently one problem is that the...
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Calcium entry through a plasma membrane defect leads to the local recruitment of endosomal complex required for transport (ESCRT) proteins. These proteins are hypothesized to drive an outward bending of the affected plasma membrane, forming a small bud that is then shed from the cell, along with the troublesome defect.
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ژورنال
عنوان ژورنال: Science
سال: 2002
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.298.5600.1849d