نتایج جستجو برای: extensin
تعداد نتایج: 204 فیلتر نتایج به سال:
کشاورزی مولکولی یکی از دستاوردهای ارزشمند مهندسی ژنتیک در تولید پروتئین های نوترکیب بویژه واکسن ها، آنتی بادی ها ، هورمون ها و ... در گیاهان است. ویژگی های خاص گیاهان به عنوان بیوراکتور آنها را از سایر سیستم های تولیدی متمایز می نماید. پروتئین داروئی tpa tissue plasminogen activator) (به طور اختصاصی و نسبتا قوی به لخته های خونی متصل شده و ترجیحا پلاسمینوژن به دام افتاده در داخل لخته ها را فعال ...
Plants encode a poorly understood superfamily of developmentally expressed cell wall hydroxyproline-rich glycoproteins (HRGPs). One, EXTENSIN3 (EXT3) of the 168 putative HRGPs, is critical in the first steps of new wall assembly, demonstrated by broken and misplaced walls in its lethal homozygous mutant. Here we report the findings of phenotypic (not genotypic) revertants of the ext3 mutant and...
A change from MX growth medium to a solution of 8% SUC induces the expression of a large number of proteins in cell cultures of Catharanthus roseus (Vetter et al., 1992; our unpublished results). In a differential screen for induced mRNAs, we identified a cDNA for a basic 14-kD polypeptide with four putative membrane-associated helices (Fig. 1, Table I). It also contains a Pro-Lys-Pro motif tha...
The origin of the agriculture was one of the turning points in human history, and a central part of this was the evolution of new plant forms, domesticated crops. Seed dispersal and germination are two key traits which have been selected to facilitate cultivation and harvesting of crops. The objective of this study was to analyze anatomical structure of seed coat and pod, identify metabolic com...
Using the quick-freeze, deep-etch technique, we have analyzed the structure of the intact cell wall of Chlamydomonas reinhardi, and have visualized its component glycoproteins after mechanical shearing and after depolymerization induced by perchlorate or by the wall-disrupting agent, autolysin. The intact wall has previously been shown in a thin-section study (Roberts, K., M. Gurney-Smith, and ...
We have identified a family of abundant peripheral plasma membrane glycoproteins that is unique to flowering plants. They are identified by a monoclonal antibody, MAC 207, that recognizes an epitope containing L-arabinose and o-glucuronic acid. Immunofluorescence and immunogold labeling studies locate the MAC 207 epitope to the outer surface of the plasma membrane both in protoplasts and in int...
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