Abstract:
:In a previous report (J. Biochem. 89, 1333-1335, 1981) we showed that 30 degrees C-treatment (pCa less than 6 and 2 mM MgCl2), like EDTA-treatment, caused a reversible removal of regulatory light-chains from Akazara adductor myosin. Utilizing the heat-treatment, we now show (a) that not half but the total removal of regulatory light-chains from Akazara myosin is required for a complete loss of calcium sensitivity of myosin-ATPase, and (b) that recombination of not 1 but 2 mol of regulatory light-chains is required for a full recovery of calcium sensitivity of both myosin-ATPase and actomyosin-superprecipitation. These (a, b) are what we showed previously with EDTA-treatment (J. Biochem. 85, 1543-1546, 1979 and 86, 663-673, 1979), thus establishing that in all respects we tested, the heat-treatment is as good as EDTA-treatment for reversible removal of regulatory light-chains. We also show that the presence of actin during heat-treatment of myosin prevented regulatory light-chains from being released (at pCa 7) and that how well the release was prevented depended on the MgCl2 concentration during the heat-treatment.
journal_name
J Biochemjournal_title
Journal of biochemistryauthors
Ojima T,Nishita K,Watanabe Sdoi
10.1093/oxfordjournals.jbchem.a134216subject
Has Abstractpub_date
1983-02-01 00:00:00pages
607-13issue
2eissn
0021-924Xissn
1756-2651journal_volume
93pub_type
杂志文章abstract::Mitochondrial processing peptidase (MPP), a metalloendopeptidase consisting of alpha and beta subunits, specifically recognizes a large variety of mitochondrial precursor proteins and cleaves off the N-terminal basic matrix targeting signals (MTS). Basic residues in MTS and acidic sites in MPP are required for effecti...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a002827
更新日期:2001-01-01 00:00:00
abstract::A large number of prokaryotic as well as eukaryotic proteins are produced with amino terminal propeptides. These amino-terminal extensions are essential for mediating proper folding of their corresponding proteins and are also termed as intramolecular chaperones. Though these propeptides are highly specific and unique...
journal_title:Journal of biochemistry
pub_type: 杂志文章,评审
doi:10.1093/oxfordjournals.jbchem.a124386
更新日期:1994-04-01 00:00:00
abstract::Transient and steady state kinetics were studied in the interactions of ATP with acto-H-meromyosin reconstituted from bovine arterial heavy-meromyosin (HMM) and rabbit skeletal muscle F-actin. The results showed that the rate of dissociation of the hybrid acto-HMM induced by ATP was slower than the rate of the fluores...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132129
更新日期:1978-08-01 00:00:00
abstract::Controlled chymotryptic digestion of the 165,000 dalton component of the M-line of rabbit skeletal muscle, followed by Biogel P-150 chromatography of the digest, has led to the isolation of a homogeneous 100,000 dalton species. This fragment was found, by both sedimentation equilibrium and gel filtration chromatograph...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132703
更新日期:1979-12-01 00:00:00
abstract::Apoprotein of electron-transferring flavoprotein (ETF) reacts with FAD as follows: A*<-->A, A+FAD<-->holoETF. Two different forms of apoETF (A* and A) convert into each other and only one of them, A, can associate with FAD [Sato, K. et al. (1991) J. Biochem. 109, 734-740]. In the present study, the reactions between a...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123980
更新日期:1992-12-01 00:00:00
abstract::The regulation of neutral cytosolic cholesterol ester hydrolase was studied in isolated rat liver cells. Addition of glucagon to cell suspensions caused a decrease in the enzyme activity which was significant at 1 nM concentration. The cyclic nucleotide analogue bibutyryl cyclic AMP (10 and 100 microM) also inhibited ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123070
更新日期:1990-03-01 00:00:00
abstract::The 1H-NMR spectra of eight unsaturated disaccharides obtained by bacterial eliminase digestion of chondroitin sulfate and of heparan sulfate/heparin were recorded in order to construct an NMR data base of sulfated oligosaccharides and to investigate the effects of sulfation on the proton chemical shifts. These shifts...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123919
更新日期:1992-10-01 00:00:00
abstract::Recombinant human granulocyte-colony-stimulating factor (G-CSF) was purified from Chinese hamster ovary cells transfected with human G-CSF cDNA. The recombinant human G-CSF was treated with alkaline borohydride and the oligosaccharide-alditols liberated were fractioned by gel filtration on a Bio-Gel P-4 column, follow...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122305
更新日期:1988-03-01 00:00:00
abstract::Polysialoglycoprotein (PSGP) is a major cortical alveolus glycoprotein of rainbow trout eggs that is characterized by the attachment of a polysialic acid structure to its O-glycan chains. It has been demonstrated that the polysialic acid structure is synthesized by at least three sialyltransferases mostly localized in...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvh106
更新日期:2004-08-01 00:00:00
abstract::C-Proteins in developing, denervated, and dystrophic chicken skeletal muscles were examined by means of two-dimensional (2D) gel electrophoresis in combination with immunoblotting. In this analysis, the electrophoresis system which was devised by Hirabayashi (Anal. Biochem. 117, 443-451, 1981) provided excellent resol...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123069
更新日期:1990-03-01 00:00:00
abstract::The present investigation was undertaken to see to what extent the alpha-amino group of the amino acid, the side chain of the amino acid of aminoacyl-tRNA, and the tRNA structure are involved in determining the affinity of aminoacyl-tRNA for bacterial elongation factor Tu-GTP complex. Various aminoacyl-tRNAs, mis-amin...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133687
更新日期:1982-01-01 00:00:00
abstract::Human serum was shown to contain N-acetyllactosamine: N-acetylglucosaminyltransferase activity. The reaction product was hydrolyzed by beta-N-acetylglucosaminidase and released [14C]N-acetylglucosamine, indicating that the N-acetylglucosaminyl residue was beta-linked to N-acetyllactosamine. Methylation and hydrolysis ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134778
更新日期:1984-06-01 00:00:00
abstract::The binding properties of dynein arms to the A- and B-tubules of outer doublets of cilia from Tetrahymena pyriformis were examined, with the following results: 1. When 30s dynein purified from Tetrahymena cilia was added to doublets deficient in dynein arms, it bound to both A- and B-tubules almost equally and formed ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132256
更新日期:1978-12-01 00:00:00
abstract::The structures of the N-linked oligosaccharides on recombinant human hepatocyte growth factor (rh-HGF) expressed by Chinese hamster ovary (CHO) cells were studied by two-dimensional sugar mapping. The oligosaccharides released from the glycopeptides by peptide: N-glycosidase F (PNGase F) treatment were tagged with 2-a...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124143
更新日期:1993-07-01 00:00:00
abstract::Capacitative Ca(2+) entry is essential for refilling intracellular Ca(2+) stores and is thought to be regulated primarily by inositol 1, 4,5-trisphosphate (IP(3))-sensitive stores in nonexcitable cells. In nonexcitable A549 cells, the application of caffeine or ryanodine induces Ca(2+) release in the absence of extrac...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a022757
更新日期:2000-08-01 00:00:00
abstract::The interactions of benzeneboronic acid (BBA) as a transition state analog with subtilisin (EC 3.4.21.4) and with alpha-chymotrypsin (EC 3.4.21.1) were investigated kinetically by the temperature-jump method using pH indicators. For both enzymes, the concentration dependence of the relaxation time was consistent with...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a130799
更新日期:1975-04-01 00:00:00
abstract::1. New methods of preparing troponins from slow skeletal and cardiac muscle of the chicken have been developed. The electrophoretic mobilities of slow skeletal muscle troponin subunits were different from those of the corresponding fast skeletal muscle subunits. 2. A new method for determining the amount of divalent c...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132589
更新日期:1979-09-01 00:00:00
abstract::The kinetic specificities of BPN' and Carlsberg subtilisins [EC 3.4.21.14] were examined with various nucleus-substituted derivatives of Nalpha-acetylated aromatic amino acid methyl esters for mapping their hydrophobic binding sites in comparison with that of alpha-chymotrypsin. The Carlsberg enzyme was generally much...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132157
更新日期:1978-09-01 00:00:00
abstract::While many reports have shown that Ca2+ alone causes ryanodine binding to the heavy fraction of the sarcoplasmic reticulum (HFSR), our results demonstrate that caffeine or beta,gamma-methylene adenosine triphosphate (AMPOPCP) in addition to Ca2+ is necessary for ryanodine binding, although Ca2+ is indispensable for it...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123144
更新日期:1990-06-01 00:00:00
abstract::A protease activity specific to spermatogenous histones was found in the egg extract of sea urchin. The enzyme responsible for this activity, named SPKK protease because of its substrate specificity, was purified as a monomeric 28 kDa protein. SPKK protease activity is inhibited by leupeptin and is specific to the rep...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123205
更新日期:1990-09-01 00:00:00
abstract::We have recently shown that furin, a mammalian homologue of the yeast precursor-processing endoprotease Kex2, is involved in precursor cleavage at sites marked by the Arg-X-Lys/Arg-Arg motif within the constitutive secretory pathway. In this study, we analyzed molecular and enzymatic properties of furin expressed in C...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123753
更新日期:1992-03-01 00:00:00
abstract::The complete amino acid sequences of the Ulex europeus anti-H(O) lectins I and II were determined by using a protein sequencer. After digestion with endoproteinases Lys-C and Asp-N of the lectins reduced with 2-mercaptoethanol and modified with iodoacetamide, the resulting peptides were purified by reversed-phase high...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123435
更新日期:1991-04-01 00:00:00
abstract::Chemical modifications by photooxidation in the presence of rose bengal (RB) and with tetranitromethane (TNM) were carried out to elucidate the amino acid residues involved in the active site of inorganic pyrophosphatase (pyrophosphate phosphohydrolase) [EC 3.6.1.1] from Escherichia coli Q13. The photooxidation caused...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122344
更新日期:1988-05-01 00:00:00
abstract::Micromolar levels of free calcium ions added to the extracellular medium elicit secretion of serotonin from electropermeabilized bovine platelets in the presence of millimolar levels of Mg-ATP. Such Ca2(+)-dependent secretion of serotonin was almost completely impaired when the permeabilized platelets were preincubate...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123199
更新日期:1990-08-01 00:00:00
abstract::We report a strategy for generating efficient signal transduction with unnatural heterologous receptor combinations. As previously described [Ueda, H., Kawahara, M. et al. (2000) J. Immunol. Methods 241, 159-170], chimeric receptors composed of the V(H)/V(L) domains of anti-hen egg lysozyme antibody HyHEL-10 and N-ter...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a002987
更新日期:2001-08-01 00:00:00
abstract::The amino acid sequences of ferredoxins I and II from a blue-green alga, Nostoc strain MAC were determined. This alga is able to grow autotrophically in the light or heterotrophically in the dark. Analyses of tryptic peptides of Cm-proteins by conventional methods including solid-phase Edman degradation gave the compl...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134058
更新日期:1982-11-01 00:00:00
abstract::When the membrane fraction of Saccharomyces carlsbergensis was incubated with radiolabeled isopentenyl diphosphate in the presence of farnesyl diphosphate and Mg2+, phosphorylated and free long-chain polyprenols were formed. The reaction was inhibited by EDTA and heavy metal cations. A series of non-ionic detergents w...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124110
更新日期:1993-06-01 00:00:00
abstract::The fluorescence characteristics of product (I), formed during the lipid peroxidation of rat liver phosphatidylcholine liposomes containing glycine, and fluorescent product (II), derived from the reaction of malonaldehyde with glycine, were examined to elucidate the mechanism of fluorescent chromophore formation. Fluo...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122546
更新日期:1988-11-01 00:00:00
abstract::The cytoplasmic peptide elongation factor, EF-1 alpha, is anchored at the endoplasmic reticulum membrane by phosphatidylinositol via ethanolamine bridging presumably to Asp306 of the protein. ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122895
更新日期:1989-10-01 00:00:00
abstract::The interactions of porcine alpha2-macroglobulin (alpha2M) with native proteinases, their zymogens and the chemically-modified enzymes were compared. The alpha2M did not bind to chymotrypsinogen, or to most of the chemically modified derivatives of alpha-chymotrypsin, trypsinogen, DIP- and PMS-trypsins, but it could i...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132042
更新日期:1978-05-01 00:00:00