Abstract:
:To reveal the molecular orientation of plastocyanin (PC) on spinach thylakoid membranes, the position of Lys residues modified by acetic anhydride was compared between thylakoid-bound PC and the isolated one. Digestion of the isolated PC by a trypsin yielded a peptide map with seven spots prior to the acetylation of the protein; none of the spots appeared after the isolated PC was acetylated. On the other hand, there were two spots on the peptide map of the PC acetylated when it was bound to the thylakoids. Those spots were revealed by their amino acid compositions to correspond to the peptide fragments Phe 82-Lys 95 and Val 96-Asn 99. Thus, the Lys residues 81 and 95 of the thylakoid-bound PC were not acetylated. These results suggest that the PC molecule binds to the thylakoids with a specific region including the Lys's 81 and 95 in contact with the membranes. The Lys's 81 and 95 are located near Tyr 83, which has been thought to be the delivery site of electrons from the Cu2+ center.
journal_name
J Biochemjournal_title
Journal of biochemistryauthors
Takano M,Takahashi M,Oobatake M,Asada Kdoi
10.1093/oxfordjournals.jbchem.a135400subject
Has Abstractpub_date
1985-11-01 00:00:00pages
1333-40issue
5eissn
0021-924Xissn
1756-2651journal_volume
98pub_type
杂志文章abstract::Phospholipase A2 inhibitor (PLI) was purified from the blood plasma of Chinese Mamushi, Agkistrodon blomhoffii siniticus, by sequential chromatography on Sephadex G-200, Mono Q, and Blue-Sepharose CL-6B columns. The purified PLI was a glycoprotein with an apparent molecular mass of 75 kDa and was composed of a single ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124060
更新日期:1993-04-01 00:00:00
abstract::The existence of specific binding proteins for alpha-casein, a well-known potent chemoattractant, on guinea pig peritoneal macrophages was demonstrated. Binding of 3H-alpha-casein to macrophages was found to be specific and reversible. Its association constant and the number of binding sites were 5.0 X 10(-6) M and 7....
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132883
更新日期:1980-05-01 00:00:00
abstract::Anti-angiotensin I IgG in serum was measured by immune complex transfer enzyme immunoassays using angiotensin I conjugates prepared by two different methods. In the first method, angiotensin I was conjugated to dinitrophenyl bovine serum albumin and beta-D-galactosidase through covalent links. Anti-angiotensin I IgG i...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123275
更新日期:1990-11-01 00:00:00
abstract::Monoclonal antibodies for human thrombomodulin, a cofactor for thrombin-catalyzed activation of protein C, were prepared and their epitopes characterized. All six antibodies (MFTM-1-MFTM-6) bound to an elastase-digested active fragment of thrombomodulin, which contains six consecutive EGF domains. Binding of thrombomo...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123295
更新日期:1990-11-01 00:00:00
abstract::Human colostral macrophages stimulated by opsonized zymosan or phorbol myristate acetate (PMA) released superoxide anions (O2-) and hydrogen peroxide (H2O2) with activities comparable to those of monocytes and about one-fourth of those of polymorphonuclear leukocytes (PMNL) of blood. The O2- -forming oxidase in the ma...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134727
更新日期:1984-05-01 00:00:00
abstract::The ATP requirement for two steps of DNA replication, the synthesis and subsequent joining of Okazaki fragments, was investigated by using isolated HeLa cell nuclei. Among adenine nucleotides tested, high levels of dATP and ADP stimulated DNA synthesis. In the presence of high levels of ATP, the addition of high level...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133262
更新日期:1981-03-01 00:00:00
abstract::The second domain (R-020) of human urinary trypsin inhibitor (UTI) exerts similar inhibitory activities on trypsin, alpha-chymotrypsin, leukocyte elastase, and plasmin to those of UTI itself, and additionally inhibits coagulation factor Xa (FXa) and plasma kallikrein, on both of which UTI has no inhibitory effect. In ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124465
更新日期:1994-06-01 00:00:00
abstract::Three forms of rat brain enolase (Fletcher, L., Rider, C.C., & Taylor, C.B. (1976) Biochim. Biophys. Acta 452, 245-252), which were separable by DEAE-cellulose chromatography (referred as enolase I, enolase II, and enolase III in order of the elution), were purified with a high yield by use of column chromatographies ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132901
更新日期:1980-06-01 00:00:00
abstract::The enthalpies of transfer of several amino acids and diglycine from water to aqueous polyols (glycerol, xylitol, sorbitol, and inositol) have been calorimetrically determined in order to clarify the mechanism of polyol-induced stabilization of proteins. The obtained enthalpy data were combined with the data on free e...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133639
更新日期:1981-12-01 00:00:00
abstract::The sensitivity and specificity of two influenza C virus assays, solid-phase and overlay assays, were investigated using naturally occurring 9-O-acetylated GD(3), rat serum glycoproteins containing 60% of N-acetyl-9-O-acetylneuraminic acid, and synthetically O-acetylated sialylated compounds. The sensitivity of the so...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a022693
更新日期:2000-06-01 00:00:00
abstract::L-selectin is a cell adhesion molecule mediating the initial capture and subsequent rolling of leukocytes along the endothelial cells expressing L-selectin ligands. In addition to its action in adhesion, an intracellular signaling role for L-selectin has been recognized. Its cytoplasmic domain is involved in signal tr...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvj149
更新日期:2006-08-01 00:00:00
abstract::Glycoengineering of therapeutic proteins has been applied to improve the clinical efficacy of several therapeutics. Here, we examined the effect of glycosylation on the properties of the Fab of the therapeutic antibody, adalimumab. An N-glycosylation site was introduced at position 178 of the H-chain constant region o...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvaa116
更新日期:2020-10-27 00:00:00
abstract::Myosin forms stable ternary complexes with ADP and phosphate analogues of fluorometals that mimic different ATPase reaction intermediates corresponding to each step of the cross-bridge cycle. In the present study, we monitored the formation of ternary complexes of myosin.ADP.fluorometal using the fluorescence probe pr...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvh095
更新日期:2004-07-01 00:00:00
abstract::ADAMTS13 is the metalloprotease responsible for the proteolytic degradation of von Willebrand factor (VWF). A severe deficiency of this VWF-cleaving protease activity causes thrombotic thrombocytopenic purpura. This protease, comprising 1,427 amino acid residues, is composed of multiple domains, i.e., a preproregion, ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvj013
更新日期:2006-01-01 00:00:00
abstract::Tetrahydrobiopterin (BH(4)) acts as a cofactor of the aromatic amino-acid hydroxylases, and its deficiency may result in hyperphenylalaninemia (HPA) and decreased production of the neurotransmitters. BH(4) is synthesized by sepiapterin reductase (SPR) from 6-pyruvoyl-tetrahydropterin (PPH(4)). A patient with SPR defic...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvp042
更新日期:2009-07-01 00:00:00
abstract::Guinea pig alveolar macrophages (A-M0) were studied with respect ot the phagocytic metabolism: the respiratory burst and its KCN sensitivity, the ability to generate H2O2, and myeloperoxidase (MPO) activity. Only fifty percent of the O2 uptake by A-M0 samples during phagocytosis was inhibited by the addition of 1 mK K...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133070
更新日期:1980-10-01 00:00:00
abstract::A DNA polymerase beta (pol. beta) inhibitor has been isolated independently from two organisms; a red perilla, Perilla frutescens, and a mugwort, Artemisia vulgaris. These molecules were determined by spectroscopic analyses to be the cyanogenic glucoside, D-mandelonitrile-beta-D-glucoside, prunasin. The compound inhib...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a022468
更新日期:1999-08-01 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::The FLI-1 transcription factor is a member of the ETS gene family, most closely related to ERG. In this study, the FLI-1 protein products were characterized using a specific monoclonal antibody previously developed against bacterially expressed protein. In the human T-cell line Jurkat, both isoforms of FLI-1, p51 and ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvi032
更新日期:2005-03-01 00:00:00
abstract::An inhibitor of neutral subtilopeptidase [EC 3.4.24.4] was purified from porcine serum by salting out with (NH4)2SO4, chromatography on anion exchange sephadex, gel filtration with Sepharose 6B, and isoelectric focusing. The preparation was homogeneous by electrophoretic and ultracentrifugal criteria, and was shown to...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:
更新日期:1975-06-01 00:00:00
abstract::We previously demonstrated that the gene for a member of the humoral C-type lectin family is transiently expressed in the regenerating legs of the American cockroach [Arai et al., Insect Biochem. Mol. Biol. 28, 987-994 (1998)]. To identify candidate lectin(s) involved in tail regeneration in the Xenopus laevis tadpole...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvm048
更新日期:2007-04-01 00:00:00
abstract::Association of sulphatide with influenza A virus (IAV) haemagglutinin (HA) delivered to the cell surface promotes progeny virus production. However, it is not known whether there is direct binding of HA to sulphatide. In this study, we found that recombinant HA, which was produced by a baculovirus protein expression s...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvq013
更新日期:2010-04-01 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::A simple and rapid purification method for human serum C-reactive protein (CRP) was developed. CRP was strongly adsorbed on a DEAE-cellulose column and was easily separated from other serum proteins. CRP was purified approximately 1,000-fold with a high yield (50%). The final preparation showed a single band as judged...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134483
更新日期:1983-11-01 00:00:00
abstract::The relationship between structure, activity, and stability of the thermostable Bacillus stearothermophilus alpha-amylase was studied by site-directed mutagenesis of the three most conserved residues. Mutation of His-238 to Asp involved in Ca2+ and substrate binding reduced the specific activity and thermal stability,...
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::The lifetime of the purple intermediate formed from D-amino acid oxidase [D-amino acid: O2 oxidoreductase (deaminating), EC 1.4.3.3] and a neutral D-amino acid under anaerobic conditions was measured with a series of neutral D-amino acids. The lifetime increases with increase in the number of carbons in the side chain...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132295
更新日期:1978-12-01 00:00:00
abstract::Escherichia coli RNase HII is composed of 198 amino acid residues. The enzyme has been overproduced in an insoluble form, purified in a urea-denatured form, and refolded with poor yield [M. Itaya (1990) Proc. Natl. Acad. Sci. USA 87, 8587-8591]. To facilitate the preparation of the enzyme in an amount sufficient for p...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a022684
更新日期:2000-05-01 00:00:00
abstract::An H2O2-generating fraction was prepared from porcine thyroid homogenate by differential and Percoll-density gradient centrifugations. The fraction consisted of mainly fragmented plasma membranes as judged by marker enzyme analysis and electron microscopy. The fraction produced H2O2 by reaction with NADPH only in the ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122150
更新日期:1987-11-01 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 heavy chain of myosin subfragment-1 prepared by chymotrypsin treatment had a molecular weight of about 96 K. It was split into 26 K, 50K, and 21 K fragments on trypsin treatment. The effect of actin binding on the susceptibilities of the junctions between 26 K and 50 K and between 50 K and 21 K, and on that of alk...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132708
更新日期:1979-12-01 00:00:00