Abstract:
:Polynucleotide phosphorylase from Thermus thermophilus catalyzed the addition of short guanylyl blocks from GDP to the 3'-hydroxyl termini of oligonucleotide primers at low temperature in a simple reaction mixture. Polyguanylic acid formation was inhibited at 37 degrees C, but the addition of one or two guanylyl residues to oligonucleotide primers proceeded in high yields. The reaction was applied to the synthesis of oligonucleotides containing guanylyl residues at the 3'-end. Using (Ap)2A and (Up)2U as primers, (Ap)3G, (Ap)3GpG, and (Up)3G were synthesized in yields of 25--52%. (Ap)2GpG was synthesized from ApA and GDP in a yield of 13%.
journal_name
J Biochemjournal_title
Journal of biochemistryauthors
Kikuchi Y,Hirai K,Sakaguchi Kdoi
10.1093/oxfordjournals.jbchem.a132660subject
Has Abstractpub_date
1979-11-01 00:00:00pages
1427-32issue
5eissn
0021-924Xissn
1756-2651journal_volume
86pub_type
杂志文章abstract::High mobility group box 1 (HMGB1) protein is the most abundant chromatin-associated non-histone protein expressed in all nucleated eukaryotic cells. We examined the phosphorylation of mammalian HMGB1 by testing the ability of the cyclin-dependent kinase 5 (Cdk5) to use as substrates native protein, either unmodified o...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvr005
更新日期:2011-05-01 00:00:00
abstract::Comparative studies of the unfolding equilibria of two homologous proteins, bovine alpha-lactalbumin and hen lysozyme, induced by treatment with guanidine hydrochloride have been made by analysis of the peptide and the aromatic circular dichroism spectra. The effect of the specific binding of Ca2+ ion by the former pr...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a135582
更新日期:1986-04-01 00:00:00
abstract::Interleukin-1 (IL-1) is produced and released by various cells, including activated macrophages, and plays important roles in inflammation as well as immune responses. Since the precursor of IL-1 has no signal peptide, the mechanism of IL-1 release has been an enigma. To investigate the possibility of direct interacti...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124987
更新日期:1995-10-01 00:00:00
abstract::L-Glutamate dehydrogenase (GLDH) independent of NAD(P) and oxygen was first obtained from the psychrotrophic bacterium Aeromonas sp. L101, originally isolated from the organs of salmon (Oncorhynchus keta). GLDH was purified by a series of chromatography steps on DEAE-Sepharose, Superdex 200pg, Q-Sepharose, CM-Sepharos...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a022347
更新日期:1999-04-01 00:00:00
abstract::A novel esterase was found in Pseudomonas fluorescens cells and purified to homogeneity as determined by polyacrylamide gel electrophoresis. The esterase was extracted from the cells by freeze-thawing and hypotonic treatment. Purification was achieved by ammonium sulfate precipitation, followed by successive chromatog...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134692
更新日期:1984-04-01 00:00:00
abstract::The conformational changes of ribonucleic acid induced by heat treatment were studied by measurements of fluorescence polarization, circular dichroism, and ultraviolet absorption. The fluorescence polarization of proflavine covalently bound to the 3'-end of 16S ribosomal RNA of Escherichia coli and that of ethenoadeno...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a131094
更新日期:1976-03-01 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 activity of cathepsin E (M(r) approximately 80K), a dimeric aspartic proteinase with two active sites per molecule, toward a protein substrate (reduced and carboxymethylated ribonuclease A) was shown to be completely inhibited by alpha 2-macroglobulin (alpha 2M) at pH 5.5. On the other hand, the activity toward a ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124077
更新日期:1993-05-01 00:00:00
abstract::Poly(A) polymerase [EC 2.7.7.19] was highly purified from beef liver nuclei by the use of column chromatographies on heparin-Sepharose 4B and Blue Dextran-Sepharose 4B. The purified enzyme showed one major protein band of the molecular weight of 57,000 in SDS polyacrylamide gel electrophoresis, which agreed with the m...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132979
更新日期:1980-08-01 00:00:00
abstract::Histidinol dehydrogenase (HDH), a Zn-metalloenzyme, produces His from histidinol through two successive oxidation reactions with NAD+ as a coenzyme. A mutation, His261-->Asn, caused the complete loss of the Zn, thereby inactivating the enzyme, without significant structural perturbation. The ability to oxidize an inte...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124298
更新日期:1994-01-01 00:00:00
abstract::Neurotrophins such as NGF promote neuronal survival and differentiation via the cell surface TrkA neurotrophin receptor. Compounds with neurotrophic actions that are low in molecular weight and can permeate the blood-brain barrier are promising therapeutic agents against neurodegenerative diseases such as Alzheimer's ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvp149
更新日期:2010-01-01 00:00:00
abstract::The differential assay conditions for protein phosphatases PP1, PP2A, and PP2C were extensively studied by using crude extracts from mouse lymphoid tissues as enzyme sources. Under these conditions, the protein phosphatase activities were measured in MRL/MpJ-lpr/lpr mice (MRL/lpr mice), autoimmune-prone mice, and MRL/...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123782
更新日期:1992-04-01 00:00:00
abstract::The pcd gene from Flavobacterium lutescens IFO3084 encoding Delta'-piperideine-6-carboxylate dehydrogenase (PCD) was cloned, sequenced, and expressed in Escherichia coli. The deduced amino acid sequence of PCD from F. lutescens IFO3084 showed strong similarity to that from Streptomyces clavuligerus. The molecular mass...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a022849
更新日期:2000-12-01 00:00:00
abstract::I attempted to isolate synaptic vesicles by gel filtration. The rat brain synaptic vesicles in a synaptosomal lysate were collected by ammonium sulfate salting-out and fractionated on a Sephacryl S-500 with a mean exclusion size of 200 nm. Peak I at the void volume contained large vesicular membranes and coated vesicl...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvg057
更新日期:2003-04-01 00:00:00
abstract::Carboxypeptidase Y (CPY) inhibitor, I(C), a cytoplasmic inhibitor of vacuolar proteinases in yeast, Saccharomyces cerevisiae, was purified by means of a high-level expression system using a proteinase-deficient strain, BJ2168, and an expression vector with the promoter GAL1. The purified I(C) exists as a monomeric bet...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a003311
更新日期:2002-12-01 00:00:00
abstract::The kinetics of the hydrogen-deuterium exchange reaction in sarcoplasmic reticulum (SR) membranes isolated from rabbit skeletal muscle was followed by infrared absorption measurements. The exchange rate in SR was much lower than that in the soluble proteins reported so far. When adenylyl-imidophosphate (AMPPNP, an TP ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133480
更新日期:1981-08-01 00:00:00
abstract::Aberrant DNA methylation is a common form of epigenetic alterations and it has been proved to be closely related to many cancers, while its role in epidermal growth factor receptor (EGFR)-mutated non-small cell lung cancer (NSCLC) is not clear. This study focuses on the role of DNA methyltransferase 1 (DNMT1) in EGFR-...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvaa034
更新日期:2020-08-01 00:00:00
abstract::Two transferrin (Tf) glycan-isoforms were previously found in cerebrospinal fluid (CSF); one appears to be derived from serum (Tf-2) and the other from choroid plexus, a CSF-producing tissue (Tf-1). To analyse metabolic differences associated with the two isoforms, their ratio (Tf-2/Tf-1) was defined as the Tf index. ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvw015
更新日期:2016-08-01 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::Rous sarcoma virus-transformed rat liver cell line RSV-BRL secreted a neutral proteinase in a latent precursor form with a molecular weight (Mr) of 57,000 (57k) as a major secreted protein. This enzyme was a calcium-dependent metallo-proteinase. The proenzyme was purified from the serum-free conditioned medium of the ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123238
更新日期:1990-10-01 00:00:00
abstract::Site-specific recognition and DNA-binding activity of p53 are crucial for its tumour suppressor function. Previous reports have shown that metal ions can affect the specific recognition and DNA-binding activity of p53DBD. Here we firstly report that magnesium ion can bind to the protein and influence its DNA-binding a...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvp048
更新日期:2009-07-01 00:00:00
abstract::To investigate the role of the C-terminal region of barley beta-amylase, plasmid delta 54 was constructed with an expression vector (pBETA92) of barley beta-amylase by site-directed mutagenesis. Escherichia coli JM109 harboring plasmid delta 54 was expected to express delta 54 beta-amylase in which 54 amino acid resid...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124722
更新日期:1995-01-01 00:00:00
abstract::A cytochrome o-type oxidase from the thermophilic bacterium PS3 grown under air-limited conditions was purified by ion-exchange chromatography in the presence of a non-ionic detergent. The enzyme was composed of three subunits (60, 30, and 16 kDa) and seemed to contain two molecules of heme b as prosthetic groups. It ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123092
更新日期:1990-04-01 00:00:00
abstract::1. The distribution of ribosomal protein S1 in subcellular fractions of E. coli was determined by radioimmunoassay. It was found that about 70%, 20% and 10% of protein S1 were present in the high salt (1.0 M NH4Cl)-washed ribosomes, the ribosomal wash and the S100 fraction, respectively. 2. Protein S1 was purified fro...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132693
更新日期:1979-12-01 00:00:00
abstract::The gene encoding subtilisin Amylosacchariticus from Bacillus subtilis var. amylosacchariticus was isolated and the entire nucleotide sequence of the coding sequence was determined. The deduced amino acid sequence revealed an N-terminal signal peptide and pro-peptide of 106 residues followed by the mature protein comp...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122380
更新日期:1988-06-01 00:00:00
abstract::The oleate (delta 9-18:1)/cis-vaccenate (delta 11-18:1) ratios in phospholipids increased in the order of normal liver, host liver and hepatoma in rats. The amount of oleate increased in phospholipids and decreased in triacylglycerol in the same order, whereas the distributions of cis-vaccenate among the major lipid c...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a121986
更新日期:1987-05-01 00:00:00
abstract::DL-[14C]Leucine or L-[3H]leucine was injected intraperitoneally into pyridoxine-deficient and control rats, and the subsequent incorporation of the radioactivities into aspartate aminotransferase (AspAT) isozymes and the total soluble protein in the liver was measured. AspAT in the cytosol (AspATc) was separated into ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a135556
更新日期:1986-03-01 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...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a021831
更新日期:1997-10-01 00:00:00
abstract::The complete peptide map of purified recombinant human interleukin 5 (rhIL-5) was determined to verify its primary structure, glycosylation sites, and disulfide bonding structure. Each peptide fragment generated by Achromobacter protease I (API) digestion was purified and characterized by amino acid analysis and amino...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123041
更新日期:1990-02-01 00:00:00
abstract::The effects of unsaturated fatty acids on the activities of peroxisomal enzymes of Tetrahymena pyriformis were investigated. When saturated fatty acids and the corresponding unsaturated fatty acids (C18) were added to the culture medium at 0.05%, the activities of peroxisomal enzymes [fatty acyl-CoA oxidase (FAO), car...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a121803
更新日期:1986-10-01 00:00:00