Abstract:
:We investigated the significance of the plasma membrane lipid composition in exocytosis in an in vitro interaction system using an intact secretory granular fraction (SG) isolated from the rat parotid gland. When various liposomes (as a model of plasma membranes) were added to this assay system, rapid and transient amylase release from the SG was evoked and increased by Ca2+ in a concentration-dependent manner. The extent depended upon not only the amount of liposomes but also their lipid composition. The addition of 1,2-diacylglycerol and phosphatidic acid to egg yolk phosphatidylcholine-liposomes remarkably facilitated the release. On the other hand, that of various free fatty acids had different effects depending upon their molecular species. Furthermore, a fluorescence de-quenching study demonstrated that membrane fusion actually occurred in this interaction system, and appeared to correlate with the amylase release. These results suggest that the transient alteration of the membrane lipid composition upon cell activation is a modulator of the exocytotic membrane interaction.
journal_name
J Biochemjournal_title
Journal of biochemistryauthors
Mizuno-Kamiya M,Inokuchi H,Kameyama Y,Yashiro K,Shin SO,Fujita Adoi
10.1093/oxfordjournals.jbchem.a124967subject
Has Abstractpub_date
1995-10-01 00:00:00pages
693-9issue
4eissn
0021-924Xissn
1756-2651journal_volume
118pub_type
杂志文章abstract::A particulate enzyme preparation from Bacillus stearothermophilus synthesized 1,3-poly(glycerol phosphage) from CDPglycerol at an optimum pH of 8.0 and the reaction was stimulated by divalent cations. Km for CDPglycerol was 0.18 mM. The synthesis was inhibited by CMP, CDP, and CTP and by concentrations of CDP-glycerol...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a130759
更新日期:1975-03-01 00:00:00
abstract::Had-1, which was isolated from mouse FM3A carcinoma cells, was a non-permissive mutant cell line to Newcastle disease virus infection. Comparative study of the asparagine-linked sugar chains of the surface glycoproteins of the mutant and its parental cells revealed that galactosylation of the complex-type sugar chains...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122838
更新日期:1989-08-01 00:00:00
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journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123037
更新日期:1990-02-01 00:00:00
abstract::Guanidine hydrochloride (GdnHCl)-induced unfolding of bovine spleen galectin-1 (Gal-1) exhibits three-state mechanism involving exclusive, structured tertiary monomer in 0.5 M GdnHCl. Gal-1 has one tryptophan residue (Trp 68) per subunit. Phosphorescence spectra of both Gal-1 dimer and intermediate monomer at 77 K sho...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvt084
更新日期:2013-12-01 00:00:00
abstract::Nearly full-length cDNA clones for muscle-type and non-muscle-type aldolase mRNAs were cloned from lambda gt10 cDNA libraries constructed from skeletal muscle and liver mRNAs of lamprey (Entosphenus japonicus). The cDNA-M8 has 2,240 bp carrying an open reading frame of 1,089 bp which encodes 362 amino acids without th...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124742
更新日期:1995-03-01 00:00:00
abstract::Administration of an excessive dose of Bacillus subtilis alpha-amylase [EC 3.2.1.1, alpha-1,4-glucan 4-glucanohydrolase] (BalphaA) induced the production of non-precipitating (non-ppt) IgG2 antibody in guinea pigs, whereas immunization with a normal dose produced precipitating (ppt) IgG1 and IgG2 antibodies. The non-p...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a131657
更新日期:1977-07-01 00:00:00
abstract::We analyzed lipids extracted from human hepatoma HepG2 cells using a high performance liquid chromatograph equipped with a reversed phase column and found a compound with a mass spectrum showing certain diagnostic ion fragments of 1-methoxy-5-polyprenyl-phenol, a known intermediate of ubiquinone biosynthesis. Universa...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123308
更新日期:1990-12-01 00:00:00
abstract::Sodium- and potassium-activated adenosinetriphosphatase (Na+, K+-ATPase) purified from dog kidney outer medulla was examined by polyacrylamide gel electrophoresis and by photoaffinity labeling with N-(ouabain)-N'-(2-nitro-4-azidophenyl)-ethylenediamine (NAP-ouabain). The large subunit band (alpha-band) split into two ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133713
更新日期:1982-01-01 00:00:00
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journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/93.3.895
更新日期:1983-03-01 00:00:00
abstract::After a dose of 10 micrograms of 6-aminonicotinamide (6-AN) was administered to day-4- chick embryo in ovo, micromelia was obviously observed in the hind limbs of 7-day chick embryos. We examined the teratogenic mechanism of 6-AN by using the normal or micromelial hind limbs (buds) from day 5 to day 7, with special at...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133890
更新日期:1982-06-01 00:00:00
abstract::The purpose of this study was to determine whether ATP-sensitive potassium channel (K(ATP) channel) activation generates oxygen free radicals in the rabbit heart. We assayed malondialdehyde (MDA) in rabbit heart slices in vitro as an indicator of oxygen free radical generation. The K(ATP) channel openers, pinacidil an...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a003157
更新日期:2002-05-01 00:00:00
abstract::A continuous cell-free protein synthesis system [Spirin et al. (1988) Science 242, 1162-1164] was modified so as to be suitable for coupled transcription-translation, a process useful for obtaining products of cloned genes or cDNAs. A reaction chamber equipped with an ultrafiltration membrane was newly designed and an...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123551
更新日期:1991-08-01 00:00:00
abstract::A GTP-binding protein with an Mr of 24,000 was purified from a cholate extract of bovine brain membranes in addition to the previously reported alpha beta gamma-trimeric GTP-binding proteins (G proteins). Partial amino acid sequence analysis of the purified 24-kDa protein revealed that it was not identical to any of t...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123398
更新日期:1991-03-01 00:00:00
abstract::To investigate the function of the gamma-carboxyglutamic acid (Gla) residues of factor IXa in the activation of factor X, a new species of bovine factor IXa, designated "factor IXa beta'," and its corresponding Gla-domainless form, designated "Gla-domainless factor IXa beta'," were prepared under controlled conditions...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123701
更新日期:1991-12-01 00:00:00
abstract::An adenosinetriphosphatase (ATPase) [EC 3.6.1.3] copurified with the DNA-dependent RNA polymerase [EC 2.7.7.6] from Escherichia coli was isolated to apparent homogeneity and some of its functional as well as structural properties were examined. Although the novel ATPase exhibited metal requirements similar to those of...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a131160
更新日期:1976-05-01 00:00:00
abstract::The denaturation of recombinant horse L-chain apoferritin (rLF), which is composed of 24 L-chain subunits, in acidic solution was studied. Using two rLF mutants, lacking four (Fer4) or eight (Fer8) N-terminal amino acid residues, the effect of N-terminal residues on the protein's stability was investigated. Of the two...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvm187
更新日期:2007-12-01 00:00:00
abstract::His397 was replaced with alanine by site-directed mutagenesis of the cloned PRC1 gene in order to confirm the role of this residue in the proton-relay system of carboxypeptidase Y (CPY). The expressed and purified H397A showed a CD spectrum almost identical to that of the wild type enzyme, but its heat stability and c...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a022133
更新日期:1998-08-01 00:00:00
abstract::DNA synthesis in the Bacillus subtilis cells has become possible using extra-cellular DNA. Generally, purified DNAs in a test tube have been required to introduce into the host cells for molecular cloning technology in the laboratory. We have developed a cell lysis technique for natural transformation using stable ext...
journal_title:Journal of biochemistry
pub_type: 杂志文章
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更新日期:2018-04-01 00:00:00
abstract::A gene for a methionine aminopeptidase (MAP; EC 3.4.11.18), which catalyzes the removal of amino-terminal methionine from the growing peptide chain on the ribosome, has been cloned from the hyperthermophilic Archaeon, Pyrococcus furiosus, by a novel method effectively using its cosmid protein library, sequenced and ex...
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更新日期:1997-10-01 00:00:00
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journal_title:Journal of biochemistry
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更新日期:2009-01-01 00:00:00
abstract::E. coli bearing hybrid plasmid pKOl (Oeda et al. (1981) Mol. Gen. Genet. 184, 191-199) expressed a large amount of lysophospholipase L2 activity. When a mutant which was defective in lysophospholipase L2 activity was transformed with plasmid pKOl, it overproduced lysophospholipase L2 activity. The gene responsible for...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134566
更新日期:1983-12-01 00:00:00
abstract::Actin-microtubule crosstalk is implicated in the formation of cellular protrusions, but the mechanism remains unclear. In this study, we examined the regulation of cell protrusion involving a ubiquitously expressed microtubule-associated protein (MAP) 4, and its superfamily proteins, neuronal MAP2 and tau. Fluorescenc...
journal_title:Journal of biochemistry
pub_type: 杂志文章
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更新日期:2020-09-01 00:00:00
abstract::Silent information regulator type-1 (SIRT1) is crucial during the development of acute respiratory distress syndrome (ARDS). We aimed to explore whether SIRT1 activation could protect against ARDS. SIRT1 was activated by its agonist SRT1720. ARDS was induced by intraperitoneal injection of 5 mg/kg lipopolysaccharide (...
journal_title:Journal of biochemistry
pub_type: 杂志文章
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更新日期:2021-01-22 00:00:00
abstract::Human promyelocytic leukemia cells (HL-60) were treated with several differentiation inducers, then the changes in the activity of cytosolic protein kinase C (PKC) isoforms were examined by hydroxylapatite chromatography and the species of the isoforms were determined immunologically. In three undifferentiated HL-60 c...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123747
更新日期:1992-02-01 00:00:00
abstract::Hydrostatic pressure-induced morphological and physiochemical changes in monomeric myosin were investigated. The turbidity of a myosin solution increased after release of pressure, indicating aggregation of the molecules. Some molecules were single headed after exposure to 100-200 MPa, in contrast with an intact molec...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124496
更新日期:1994-07-01 00:00:00
abstract::A simple and rapid preparation method for apoaspartate aminotransferase from Escherichia coli B was developed. A crude extract of the bacterial cells was treated batchwise with DEAE-cellulose. The enzyme fraction obtained was then applied to a pyridoxamine-Sepharose column. Apoaspartate aminotransferase was eluted wit...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a135371
更新日期:1985-10-01 00:00:00
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journal_title:Journal of biochemistry
pub_type: 杂志文章
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更新日期:1998-11-01 00:00:00
abstract::Several synthetic peptides derived from the C-terminal domain sequence of a hemolytic lectin, CEL-III, were examined as to their action on bacteria and artificial lipid membranes. Peptide P332 (KGVIFAKASVSVKVTASLSK-NH(2)), corresponding to the sequence from residue 332, exhibited strong antibacterial activity toward G...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvh007
更新日期:2004-01-01 00:00:00
abstract::Partition of merocyanine dyes, which have a negative charge, onto photosynthetic membranes of chloroplasts and bacteria was analyzed by measuring the fluorescence intensity change, absorbance change, and amount of dye in the supernatant after centrifugation. The partition depended on the surface potential, which is a ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133214
更新日期:1981-02-01 00:00:00
abstract::Substrate specificities of phospholipases C[EC 3.1.4.3] from Clostridium novyi, Clostridium perfringens, Bacillus cereus, and Pseudomonas aureofaciens were studied under the same conditions. Phospholipases C from Clostridium novyi and Bacillus cereus show wide substrate specificities while those of Clostridium perfrin...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a131809
更新日期:1977-11-01 00:00:00