PMID-sentid Pub_year Sent_text comp_official_name comp_offset protein_name organism prot_offset 1423500-3 1992 Isolated chromaffin granules contained very little synexin, whereas chromaffin granules aggregated with synexin (24 micrograms/mg) and Ca2+ (1 mM) clearly showed synexin-associated immunogold particles in the vicinity of the granule membrane (1.88 gold particles per granule profile). chromaffin 68-78 annexin A7 Bos taurus 104-111 7696302-1 1995 The effects of the protein synthesis inhibitors actinomycin D and cycloheximide on the cellular content of the calcium binding protein synexin, and on the secretory response of cultured bovine adrenal medullary chromaffin cells were determined. Cycloheximide 66-79 annexin A7 Bos taurus 135-142 7696302-1 1995 The effects of the protein synthesis inhibitors actinomycin D and cycloheximide on the cellular content of the calcium binding protein synexin, and on the secretory response of cultured bovine adrenal medullary chromaffin cells were determined. Calcium 111-118 annexin A7 Bos taurus 135-142 7696302-3 1995 The synexin level was reduced by 50% after 133 h of incubation in the presence of 2 micrograms/ml actinomycin D or 5 micrograms/ml cycloheximide. Dactinomycin 98-111 annexin A7 Bos taurus 4-11 7696302-3 1995 The synexin level was reduced by 50% after 133 h of incubation in the presence of 2 micrograms/ml actinomycin D or 5 micrograms/ml cycloheximide. Cycloheximide 131-144 annexin A7 Bos taurus 4-11 7696302-4 1995 However, this was partly due to an artefactual stabilization of synexin, since metabolic labelling of synexin with [35S]methionine showed that the half-time of degradation was only 40 h. The secretory response of chromaffin cells was quickly diminished in the presence of protein synthesis inhibitors. Sulfur-35 116-119 annexin A7 Bos taurus 102-109 7696302-4 1995 However, this was partly due to an artefactual stabilization of synexin, since metabolic labelling of synexin with [35S]methionine showed that the half-time of degradation was only 40 h. The secretory response of chromaffin cells was quickly diminished in the presence of protein synthesis inhibitors. Methionine 120-130 annexin A7 Bos taurus 102-109 1423500-0 1992 Immunolocalization of synexin (annexin VII) in adrenal chromaffin granules and chromaffin cells: evidence for a dynamic role in the secretory process. chromaffin 55-65 annexin A7 Bos taurus 22-29 1423500-0 1992 Immunolocalization of synexin (annexin VII) in adrenal chromaffin granules and chromaffin cells: evidence for a dynamic role in the secretory process. chromaffin 55-65 annexin A7 Bos taurus 31-42 1423500-1 1992 Synexin (annexin VII) is a Ca(2+)- and phospholipid-binding protein which has been proposed to play a role in Ca(2+)-dependent membrane fusion processes. Phospholipids 39-51 annexin A7 Bos taurus 0-7 1423500-3 1992 Isolated chromaffin granules contained very little synexin, whereas chromaffin granules aggregated with synexin (24 micrograms/mg) and Ca2+ (1 mM) clearly showed synexin-associated immunogold particles in the vicinity of the granule membrane (1.88 gold particles per granule profile). chromaffin 68-78 annexin A7 Bos taurus 104-111 1423500-1 1992 Synexin (annexin VII) is a Ca(2+)- and phospholipid-binding protein which has been proposed to play a role in Ca(2+)-dependent membrane fusion processes. Phospholipids 39-51 annexin A7 Bos taurus 9-20 1423500-2 1992 Using a monoclonal antibody against synexin, Mab 10E7, and immunogold, we carried out a semiquantitative localization study of synexin in bovine adrenal medullary chromaffin granules, and in resting and nicotine-stimulated adrenal chromaffin cells. chromaffin 163-173 annexin A7 Bos taurus 127-134 1423500-5 1992 During the active phase of cholinergically stimulated catecholamine secretion, the amount of synexin label was reduced by 33% in the nucleus, by 23% in the cytosol, and by 51% in the granule area. Catecholamines 54-67 annexin A7 Bos taurus 93-100 1423500-7 1992 We conclude that synexin is involved in the secretory process in chromaffin cells. chromaffin 65-75 annexin A7 Bos taurus 17-24 2967699-2 1988 Synexin was isolated from bovine liver by high resolution cation exchange chromatography and fragmented with cyanogen bromide or trypsin. Cyanogen Bromide 109-125 annexin A7 Bos taurus 0-7 1834175-2 1991 Since synexin from adrenal glands promotes aggregation and fusion of chromaffin granules, we purified synexin-like proteins from bovine lung cytosolic fraction, and evaluated their effect on the fusion of isolated lamellar bodies and plasma membrane fractions. chromaffin 69-79 annexin A7 Bos taurus 6-13 1834175-6 1991 Lung synexin promoted fusion only in the presence of calcium. Calcium 53-60 annexin A7 Bos taurus 5-12 2974861-0 1988 A molecular basis for synexin-driven, calcium-dependent membrane fusion. Calcium 38-45 annexin A7 Bos taurus 22-29 2974861-2 1988 The probable role of calcium in the process is now widely accepted, and it is possible that at least one cytosolic mediator of calcium action is synexin. Calcium 127-134 annexin A7 Bos taurus 145-152 2974861-3 1988 Synexin is a 47,000 Mr calcium-binding protein, initially discovered in the bovine adrenal medulla, which binds to granule membranes and to inner aspects of chromaffin cell plasma membranes. Calcium 23-30 annexin A7 Bos taurus 0-7 2974861-3 1988 Synexin is a 47,000 Mr calcium-binding protein, initially discovered in the bovine adrenal medulla, which binds to granule membranes and to inner aspects of chromaffin cell plasma membranes. chromaffin 157-167 annexin A7 Bos taurus 0-7 2974861-4 1988 Synexin causes chromaffin granules to aggregate, and such aggregates can be caused to fuse in the additional presence of arachidonic acid. chromaffin 15-25 annexin A7 Bos taurus 0-7 2974861-5 1988 Synexin also mediates the direct fusion of liposomes and chromaffin granule ghosts. chromaffin 57-67 annexin A7 Bos taurus 0-7 2974861-7 1988 Our initial efforts were directed towards purification of bovine synexin in sufficient amounts to allow us to sequence tryptic peptides. Peptides 127-135 annexin A7 Bos taurus 65-72 2974861-14 1988 Additional evidence is the fact that synexin also forms calcium-selective channels when the protein is applied to the cytosolic aspect of the plasmalemma when that side is also exposed to calcium at sub-millimolar concentrations. Calcium 56-63 annexin A7 Bos taurus 37-44 2953727-4 1987 These PMN proteins, like bovine liver synexin, promoted aggregation of isolated PMN specific granules in the presence of Ca2+ and increased the overall rate of Ca2+-induced fusion of liposomes composed of phosphatidate (PA)/phosphatidylethanolamine (PE) (1:3) and phosphatidylserine/PE (1:3), but decreased the rate of spermine-induced fusion of PA/PE (1:3) liposomes. phosphatidate 205-218 annexin A7 Bos taurus 38-45 2960380-14 1987 We conclude that the coincident pCa and pH sensitivity of synexin-mediated binding to chromaffin granule membranes and their subsequent fusion might be associated with physiological changes in the concentration of both cations in the cytoplasm of secreting chromaffin cells. chromaffin 86-96 annexin A7 Bos taurus 58-65 2960380-14 1987 We conclude that the coincident pCa and pH sensitivity of synexin-mediated binding to chromaffin granule membranes and their subsequent fusion might be associated with physiological changes in the concentration of both cations in the cytoplasm of secreting chromaffin cells. chromaffin 257-267 annexin A7 Bos taurus 58-65 2953727-4 1987 These PMN proteins, like bovine liver synexin, promoted aggregation of isolated PMN specific granules in the presence of Ca2+ and increased the overall rate of Ca2+-induced fusion of liposomes composed of phosphatidate (PA)/phosphatidylethanolamine (PE) (1:3) and phosphatidylserine/PE (1:3), but decreased the rate of spermine-induced fusion of PA/PE (1:3) liposomes. Protactinium 220-222 annexin A7 Bos taurus 38-45 2953727-4 1987 These PMN proteins, like bovine liver synexin, promoted aggregation of isolated PMN specific granules in the presence of Ca2+ and increased the overall rate of Ca2+-induced fusion of liposomes composed of phosphatidate (PA)/phosphatidylethanolamine (PE) (1:3) and phosphatidylserine/PE (1:3), but decreased the rate of spermine-induced fusion of PA/PE (1:3) liposomes. phosphatidylethanolamine 224-248 annexin A7 Bos taurus 38-45 2953727-4 1987 These PMN proteins, like bovine liver synexin, promoted aggregation of isolated PMN specific granules in the presence of Ca2+ and increased the overall rate of Ca2+-induced fusion of liposomes composed of phosphatidate (PA)/phosphatidylethanolamine (PE) (1:3) and phosphatidylserine/PE (1:3), but decreased the rate of spermine-induced fusion of PA/PE (1:3) liposomes. phosphatidylethanolamine 250-252 annexin A7 Bos taurus 38-45 2953727-4 1987 These PMN proteins, like bovine liver synexin, promoted aggregation of isolated PMN specific granules in the presence of Ca2+ and increased the overall rate of Ca2+-induced fusion of liposomes composed of phosphatidate (PA)/phosphatidylethanolamine (PE) (1:3) and phosphatidylserine/PE (1:3), but decreased the rate of spermine-induced fusion of PA/PE (1:3) liposomes. Phosphatidylserines 264-282 annexin A7 Bos taurus 38-45 2953727-4 1987 These PMN proteins, like bovine liver synexin, promoted aggregation of isolated PMN specific granules in the presence of Ca2+ and increased the overall rate of Ca2+-induced fusion of liposomes composed of phosphatidate (PA)/phosphatidylethanolamine (PE) (1:3) and phosphatidylserine/PE (1:3), but decreased the rate of spermine-induced fusion of PA/PE (1:3) liposomes. phosphatidylethanolamine 283-285 annexin A7 Bos taurus 38-45 2953727-4 1987 These PMN proteins, like bovine liver synexin, promoted aggregation of isolated PMN specific granules in the presence of Ca2+ and increased the overall rate of Ca2+-induced fusion of liposomes composed of phosphatidate (PA)/phosphatidylethanolamine (PE) (1:3) and phosphatidylserine/PE (1:3), but decreased the rate of spermine-induced fusion of PA/PE (1:3) liposomes. Spermine 319-327 annexin A7 Bos taurus 38-45 2953727-4 1987 These PMN proteins, like bovine liver synexin, promoted aggregation of isolated PMN specific granules in the presence of Ca2+ and increased the overall rate of Ca2+-induced fusion of liposomes composed of phosphatidate (PA)/phosphatidylethanolamine (PE) (1:3) and phosphatidylserine/PE (1:3), but decreased the rate of spermine-induced fusion of PA/PE (1:3) liposomes. Protactinium 346-348 annexin A7 Bos taurus 38-45 2953727-4 1987 These PMN proteins, like bovine liver synexin, promoted aggregation of isolated PMN specific granules in the presence of Ca2+ and increased the overall rate of Ca2+-induced fusion of liposomes composed of phosphatidate (PA)/phosphatidylethanolamine (PE) (1:3) and phosphatidylserine/PE (1:3), but decreased the rate of spermine-induced fusion of PA/PE (1:3) liposomes. phosphatidylethanolamine 283-285 annexin A7 Bos taurus 38-45 6121822-0 1982 Further characterization of the aggregation and fusion of chromaffin granules by synexin as a model for compound exocytosis. chromaffin 58-68 annexin A7 Bos taurus 81-88 6459804-5 1982 Depending on the phospholipid composition, synexin could either facilitate or inhibit Ca2+-induced fusion of vesicles. Phospholipids 17-29 annexin A7 Bos taurus 43-50 2960380-0 1987 Synexin-mediated fusion of bovine chromaffin granule ghosts. chromaffin 34-44 annexin A7 Bos taurus 0-7 2960380-2 1987 Synexin induces chromaffin granule ghosts to fuse one to another, a process which is followed continuously and quantitatively by monitoring the mixing of the intragranular aqueous compartments. chromaffin 16-26 annexin A7 Bos taurus 0-7 2960380-10 1987 In our attempt to determine whether the pH effect was on the synexin or on the membranes, we found that fusion was blocked only by treatment of the membranes with the membrane-impermeant carboxyl group modifier 1-ethyl-3-(4-azonia-4,4-dimethylpentyl)carbodiimide. 1-ethyl-3-(4-azonia-4,4-dimethylpentyl)carbodiimide 211-262 annexin A7 Bos taurus 61-68 2933036-1 1985 Three synexin isotypes were identified in bovine liver or adrenal medullary tissues by immune blotting of one- or two-dimensional SDS gels and by two-dimensional tryptic peptide mapping of gel bands or spots. Sodium Dodecyl Sulfate 130-133 annexin A7 Bos taurus 6-13 6121822-1 1982 Synexin was isolated from bovine liver and found to aggregate adrenal chromaffin granules in the same Ca2+-dependent manner as previously described for adrenal synexin. chromaffin 70-80 annexin A7 Bos taurus 0-7 6121822-2 1982 The chromaffin granule aggregating activity of liver synexin was blocked in vitro by the addition of an antibody prepared to the 47,000 molecular weight band extracted from an SDS gel of an adrenal medullary synexin preparation. chromaffin 4-14 annexin A7 Bos taurus 53-60 6121822-2 1982 The chromaffin granule aggregating activity of liver synexin was blocked in vitro by the addition of an antibody prepared to the 47,000 molecular weight band extracted from an SDS gel of an adrenal medullary synexin preparation. chromaffin 4-14 annexin A7 Bos taurus 208-215 6121822-2 1982 The chromaffin granule aggregating activity of liver synexin was blocked in vitro by the addition of an antibody prepared to the 47,000 molecular weight band extracted from an SDS gel of an adrenal medullary synexin preparation. Sodium Dodecyl Sulfate 176-179 annexin A7 Bos taurus 53-60 6121822-3 1982 Chromaffin granules aggregated by synexin fused when exposed to cis-unsaturated fatty acids at concentrations comparable to those released from phospholipids by stimulated secretory cells. chromaffin 0-10 annexin A7 Bos taurus 34-41 6121822-3 1982 Chromaffin granules aggregated by synexin fused when exposed to cis-unsaturated fatty acids at concentrations comparable to those released from phospholipids by stimulated secretory cells. cis-unsaturated fatty acids 64-91 annexin A7 Bos taurus 34-41 6121822-4 1982 The synexin-induced aggregation reaction was blocked by Erythrosin B, a common food coloring, and by the phenothiazine antipsychotic trifluoperazine and promethazine. Erythrosine 56-68 annexin A7 Bos taurus 4-11 6121822-4 1982 The synexin-induced aggregation reaction was blocked by Erythrosin B, a common food coloring, and by the phenothiazine antipsychotic trifluoperazine and promethazine. phenothiazine 105-118 annexin A7 Bos taurus 4-11 6121822-4 1982 The synexin-induced aggregation reaction was blocked by Erythrosin B, a common food coloring, and by the phenothiazine antipsychotic trifluoperazine and promethazine. Trifluoperazine 133-148 annexin A7 Bos taurus 4-11 6121822-4 1982 The synexin-induced aggregation reaction was blocked by Erythrosin B, a common food coloring, and by the phenothiazine antipsychotic trifluoperazine and promethazine. Promethazine 153-165 annexin A7 Bos taurus 4-11 6121822-5 1982 The aggregation and fusion of chromaffin granules thus appears to be a useful model system for studying synexin from diverse tissues and for testing pharmacologically or toxicologically active substances for effects on secretory systems. chromaffin 30-40 annexin A7 Bos taurus 104-111 6112701-3 1980 We have discovered and isolated a new 47,000 MW protein (synexin) from adrenal medulla tissue that fuses chromaffin granule membranes only in the presence of calcium. chromaffin 105-115 annexin A7 Bos taurus 57-64 6112701-3 1980 We have discovered and isolated a new 47,000 MW protein (synexin) from adrenal medulla tissue that fuses chromaffin granule membranes only in the presence of calcium. Calcium 158-165 annexin A7 Bos taurus 57-64 6112701-4 1980 Synexin activity was detected in a number of secretory tissues including human platelets and bovine brain, and the synexin molecule was found by immunofluorescent cytochemistry to be localized to the cytoplasm of chromaffin cells. chromaffin 213-223 annexin A7 Bos taurus 115-122 6112701-6 1980 On the basis of these data we suggest that synexin may be the intracellular receptor for calcium during exocytosis. Calcium 89-96 annexin A7 Bos taurus 43-50