Abstract：
:Antibodies against centrin, the ubiquitous calcium-binding contractile protein, recognized a 17 kDa protein in extracts of onion root tips and cauliflower florets. Using immunofluorescence microscopy, anti-centrin antibodies were localized to the developing cell plate of onion and cauliflower root tip cells. In cauliflower florets, these antibodies localized to the walls in a punctate manner, consistent with the distribution of plasmodesmata as shown by colocalization with callose. Anti-centrin antibodies were localized to plasmodesmata of onion root tips and cauliflower florets with immunogold electron microscopy. Furthermore, this label was concentrated around the necks of plasmodesmata. In contrast, an antibody against calmodulin, which is a closely related calcium-binding protein, did not label plasmodesmata. We propose that centrin is a component of calcium-sensitive contractile nanofilaments in the neck region of plasmodesmata and facilitates the calcium-induced regulation of intercellular transport.
journal_name
Eur J Cell Bioljournal_title
European journal of cell biologyauthors
Blackman LM,Harper JD,Overall RLdoi
10.1016/S0171-9335(99)80063-6subject
Has Abstractpub_date
1999-05-01 00:00:00pages
297-304issue
5eissn
0171-9335issn
1618-1298pii
S0171-9335(99)80063-6journal_volume
78pub_type
杂志文章abstract：:The 90-kDa heat-shock protein, hsp90, is an abundant and conserved protein located predominantly in the cytoplasm. Previous reports have localized a portion of the hsp90 to microtubules and to microfilaments. Here, we show that colocalization of hsp90 with microtubules is seen after long-term but not short-term fixati...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1996-08-01 00:00:00
abstract：:Differences in the carbohydrate composition were found in the jellies and the cortex of the unfertilized Xenopus laevis egg using lectins and blood group antibodies. Blood group H trisaccharide was detected in the outer jelly and "A-like" oligosaccharide was found in the inner jelly. The blood group A trisaccharide wa...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1988-10-01 00:00:00
abstract：:mRNA translation is regulated by diverse mechanisms that converge at the initiation and elongation steps to determine the rate, profile, and localization of proteins synthesized. A consistently relevant feature of these mechanisms is the spatial re-distribution of translation machinery, a process of particular importa...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1016/j.ejcb.2018.02.002
更新日期：2018-04-01 00:00:00
abstract：:Recently, we have described the developmental expression of the small heat shock proteins (sHsps) Hsp27/HspB1 and alphaB-crystallin/HspB5 in different tissues of pigs from almost full-term foetuses to three years old adults (P. Tallot, J. F. Grongnet, J. C. David, Biol. Neonate, 83, 281-288, 2003). The data described ...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1078/0171-9335-00337
更新日期：2003-10-01 00:00:00
abstract：:The sister chromatid cohesion complex of Saccharomyces cerevisiae includes chromosomal ATPases Smc1p and Smc3p, the kleisin Mcd1p/Scc1p, and Irr1p/Scc3p, the least studied component. We have created an irr1-1 mutation (F658G substitution) which is lethal in the haploid and semi-dominant in the heterozygous diploid irr...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1016/j.ejcb.2008.05.002
更新日期：2008-10-01 00:00:00
abstract：:Intact follicles as well as defolliculated oocytes of the mouse were studied by freeze-fracture electron microscopy. In intact follicles the oocyte plasma membrane shows two prominent types of intra-membrane particle array:gap junctions and yet undescribed rhombic particle arrays. The gap junctions vary in size (from ...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1984-11-01 00:00:00
abstract：:During endotoxic shock, the liver exerts an endotoxin (lipopolysaccharide, LPS) clearance function with the participation of both sinusoidal (mainly Kupffer and endothelial cells) and parenchymal cells. In order to determine the specificity and diversity of response of each liver cell type, the effect of Escherichia c...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1994-10-01 00:00:00
abstract：:Alternative splicing in the extracellular domain is a characteristic feature of members of the fibroblast growth factor receptor (FGFR) family. This splicing event generates receptor variants, which differ in their ligand binding specificities. A poorly characterized splice variant is FGFR1-IIIb, recently found to be ...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1078/0171-9335-00355
更新日期：2004-02-01 00:00:00
abstract：:The presence of actin in eukaryotic nuclei, and, especially, its functional significance has not been well established. We have found that under routine immunocytochemical conditions, no actin can be detected in insect follicle cell nuclei by means of antibody (both mono- and polyclonal) or phalloidin staining. Howeve...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1994-08-01 00:00:00
abstract：:This paper explores the mode of action of the tranquillizers chloral hydrate and diazepam during fertilization and mitosis of the first reproductive cell cycles in sea urchin eggs. Most striking effects of these drugs are the alteration of centrosomal material and the abnormal microtubule configurations during exposur...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1016/S0171-9335(98)80041-1
更新日期：1998-01-01 00:00:00
abstract：:In order to investigate the relationship of different cytokeratins within one cell, monoclonal antibodies directed against three trophectoderm cytokeratins TROMA 1, 2 and 3 were microinjected into mouse teratocarcinoma-derived trophoblastoma cells and indirect immunofluorescence tests were used to follow the subsequen...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1987-06-01 00:00:00
abstract：:Monoclonal antibodies to the constitutive desmosomal glycoprotein desmoglein were characterized whose epitopes are located intracellularly, i.e., in the cytoplasmic portion of this molecule, and contribute to the structure of the desmosomal plaque. Using one of these antibodies (DG3.10), a peptide was isolated from a ...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1990-10-01 00:00:00
abstract：:In response to hypotonic stress, cells of the inner medullary collecting duct (IMCD) undergo swelling followed by a regulatory volume decrease (RVD) and a transient release of organic osmolytes such as sorbitol. In this study, we tested the hypothesis whether membrane recycling is involved in the latter process. There...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1994-02-01 00:00:00
abstract：:Human ECV304 cells respond reproducibly by tube formation to complex basement membrane matrices. Laminins are major glycoproteins of basement membranes. We therefore studied the ability of ECV304 cells to attach to defined laminin isoforms and to fibronectin, and identified the involved laminin receptors. The cells bo...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1078/0171-9335-00297
更新日期：2003-03-01 00:00:00
abstract：:Rabbit antisera against homogeneous rat liver thioredoxin and thioredoxin reductase (NADPH-oxidized thioredoxin oxidoreductase, E.C. 1.6.4.5) were prepared and used for immunohistochemical analysis in adult rats. Immunoreactive thioredoxin and thioredoxin reductase were widely distributed in tissues and organs, but va...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1985-07-01 00:00:00
abstract：:The major histocompatibility complex (MHC) class II-associated invariant chain (Ii) contains signals for transport to endocytic compartments where the class II molecules bind antigenic peptides for presentation to CD4+ T cells. Two leucine-based signals in the Ii cytoplasmic tail can be independently recognized for en...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1016/S0171-9335(98)80014-9
更新日期：1998-05-01 00:00:00
abstract：:The P446L mutant Drosophila importin-beta (P446L-imp-beta) has been reported to prohibit--in dominant negative fashion--nuclear envelope (NE) assembly. Along elucidating the mode of action of P446L-imp-beta we studied in vitro NE assembly on Sepharose beads. While Drosophila embryo extracts support NE assembly over Se...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1078/0171-9335-00324
更新日期：2003-07-01 00:00:00
abstract：:Within eukaryotic cells tubulin generally exists in protein families composed of closely related isoforms generated either by differential gene transcription or by posttranscriptional and posttranslational mechanisms. In this study, immunological approaches were used to examine the contribution of posttranslational mo...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1995-05-01 00:00:00
abstract：:Storage and release of proteins from granules forms the basis of cellular functions as diverse as cell mediated cytotoxicity, neuronal communication, activation of muscle fibres, and release of hormones or digestive enzymes from endocrine and exocrine glands, such as the pancreas. Serglycin is the major intracellular ...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1016/j.ejcb.2009.03.002
更新日期：2009-08-01 00:00:00
abstract：:The neural cell adhesion molecule (NCAM) plays a key morphoregulatory role during neural development. Patterns of NCAM expression were investigated in cultured astrocytes exhibiting distinct states of morphological differentiation. In vitro differentiation of confluent primary cultures of astrocytes was enhanced by a ...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1993-12-01 00:00:00
abstract：:Programmed cell death (PCD) is the regulated removal of cells within an organism and plays a fundamental role in growth and development in nearly all eukaryotes. In animals, the model organism Caenorhabditis elegans (C. elegans) has aided in elucidating many of the pathways involved in the cell death process. Various ...
journal_title：European journal of cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ejcb.2012.02.002
更新日期：2012-08-01 00:00:00
abstract：:The murine recessive yellow (Mc1r(e)) is a loss-of-function mutation in the receptor for alpha-melanocyte-stimulating hormone, melanocortin receptor 1 (Mc1r) and produces yellow coats by inducing pheomelanin synthesis in hair follicular melanocytes. However, it is not known whether the Mc1r(e) mutation affects the pro...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1016/j.ejcb.2007.03.007
更新日期：2007-06-01 00:00:00
abstract：:Lipid droplet precursors of milk lipid globules are believed to be derived from elements of endoplasmic reticulum in milk-secreting mammary epithelial cells. Endoplasmic reticulum isolated from mammary gland was able to generate small droplets morphologically resembling microlipid droplet precursors of milk lipid glob...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1992-02-01 00:00:00
abstract：:In the presence of various commonly used buffers, phosphate-buffered saline (PBS), tris-buffered saline (TBS), Na-cacodylate, bovine serum albumin and a wide range of cytochemically active proteins (monoclonal and polyclonal IgG, concanavalin A, Ricinus communis lectin I, Helix pomatia lectin, protein A) were complexe...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1986-12-01 00:00:00
abstract：:Earlier studies have indicated that Jun/AP-1 activity is associated with, and probably required for apoptosis induction by DNA-damaging and stress-inducing agents in human myeloid cells. To investigate this possibility, we examined the capacity of continuous treatments with etoposide (10 microM) and camptothecin (0.4 ...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1078/S0171-9335(04)70001-1
更新日期：2000-01-01 00:00:00
abstract：:When virgin temperature-sensitive mutant cdc28 cells of the yeast Saccharomyces cerevisiae were incubated at restrictive temperatures, they continued to grow, reaching a maximum of 3.3-fold the original size after 24 h. The protein and RNA levels increased during the first 24 h, then gradually decreased. The cells tha...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1995-11-01 00:00:00
abstract：:Chondrocyte terminal differentiation is associated with cellular hypertrophy increased activity of plasma membrane alkaline phosphatase and the synthesis of collagen type X. The hypertrophic phenotype of cultured chondrocytes can be stimulated by ascorbic acid but the underlying mechanisms for this phenotypic change a...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1016/s0171-9335(98)80023-x
更新日期：1998-06-01 00:00:00
abstract：:The development of an efficient immune response depends on the capacity of antigen-specific lymphocytes to migrate into secondary lymphoid organs. The first step in the process of lymphocyte extravasation involves lymphocyte binding to the vascular endothelium. Although several adhesion receptors have been implicated ...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1996-05-01 00:00:00
abstract：:The distribution of microtubules and centrosomes was studied during sheep fertilization by electron and immunofluorescence microscopy. Tubulin and centrosomal material was identified with monoclonal anti-alpha-tubulin and MPM-2 antibodies, respectively. In ovulated eggs, microtubules were exclusively found in the meio...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1989-04-01 00:00:00
abstract：:In this study we have used primary cultures of porcine superior cervical ganglia as a model system to study exo-endocytosis in sympathetic neurons. Pure neuronal cultures with a defined noradrenergic phenotype can be obtained when antimitotics are included in the culture medium, and the high yield from prenatal piglet...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1997-11-01 00:00:00
