Abstract:
:Soybean Bowman-Birk inhibitor, a double-headed inhibitor of trypsin and alpha-chymotrypsin, was treated with cyanogen bromide and then pepsin to yield two inhibitory active fragments. Structural investigation showed that one of the fragments was derived from the trypsin inhibitory domain and the other from the chymotrypsin inhibitory domain of the inhibitor. In contrast to the unusual stability of the native inhibitor, the separated domains were less stable and could be inactivated with excess proteinases. These results suggest that the legume double-headed inhibitors acquired their unusual stability by duplicating an ancestral single-headed structure.
journal_name
J Biochemjournal_title
Journal of biochemistryauthors
Odani S,Ikenaka Tdoi
10.1093/oxfordjournals.jbchem.a131968subject
Has Abstractpub_date
1978-03-01 00:00:00pages
747-53issue
3eissn
0021-924Xissn
1756-2651journal_volume
83pub_type
杂志文章abstract::Mild trypsinization of human erythrocyte stroma solubilized CR1 (complement receptor type 1, C3b/C4b receptor) without significant loss of decay-accelerating activity to C5 convertases on hemolytic intermediate cells (EAC 1-3b, P). The solubilized CR1 was purified using DEAE-Sephacel, C3-Sepharose, and anti-CR1-Sephar...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a121823
更新日期:1986-11-01 00:00:00
abstract::A real time biomolecular interaction assay system involving an optical sensor was applied to the quantitative analysis of the binding of herpes simplex virus type 1 (HSV-1) to Vero cells, and the neutralization antibody titer against this virus with a commercially available sulfonated human immunoglobulin preparation....
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a021632
更新日期:1997-04-01 00:00:00
abstract::We have detected in rat liver cytosol three enzymes (termed C-1, C-2, and C-3) which cleaved the RNA moiety of RNA-DNA hybrid. These enzymes were separated from each other by DEAE-Sephadex and Sephadex G-200 chromatography. C-1 and C-2 specifically act on the RNA moiety of RNA-DNA hybrid, while C-3 degrades single-str...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132140
更新日期:1978-08-01 00:00:00
abstract::In order to obtain information on the nature of the amino acid residues involved in the activity of ribonuclease U1 [EC 3.1.4.8], various chemical modifications of the enzyme were carried out. RNase U1 was inactivated by reaction with iodoacetate at pH 5.5 with concomitant incorporation of 1 carboxymethyl group per mo...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a131544
更新日期:1977-04-01 00:00:00
abstract::The isolation and characterization of rabbit and human cDNAs revealed a new low density lipoprotein receptor (LDLR)-related protein (LRP) designated as LRP5. Human LRP5 cDNA encodes a 1, 616-amino acid type I membrane-like protein with three ligand binding repeats in its extracellular region. LDLR-deficient cells tran...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a022223
更新日期:1998-12-01 00:00:00
abstract::The role of thiols on the activation and/or stabilization of rat brain nitric oxide synthase (NOS) has been investigated. It was found that thiols are not necessary for stabilizing or protecting the protein during purification but are required during enzyme turnover for maximum activity. In the complete absence of thi...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124797
更新日期:1995-04-01 00:00:00
abstract::A cysteine proteinase inhibitor (designated as cystatin SA) was isolated from human whole saliva by procedures including chromatography on DE 32 and DEAE-Sepharose CL-6B. The amino acid sequence determined by conventional methods showed sequence homology of 90 and 87% as compared with the sequences of cystatin S and c...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122107
更新日期:1987-10-01 00:00:00
abstract::When the body temperature of rats was brought to 42 degrees C, four heat-shock proteins, with molecular weights of 70,000, 71,000, 85,000, and 100,000 (hsp 70, hsp 71, hsp 85, and hsp 100, respectively), were induced in various tissues of the rats. The hsp 70 was strongly induced by hyperthermia, and its accumulation ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a121889
更新日期:1987-01-01 00:00:00
abstract::It was previously found that rabbit serum contains a growth-inhibitory substance for a tumorigenic rat liver cell line RSV-BRL. In the present study, the growth inhibitor was purified from normal rabbit serum to show a homogeneous protein band with a molecular weight (Mr) of 56 k on SDS-polyacrylamide gel electrophore...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123597
更新日期:1991-09-01 00:00:00
abstract::Angiogenesis, a formation of neovessels, is regulated by the local balance between angiogenesis stimulators and inhibitors. A number of such endogenous regulators of angiogenesis have been found in the body. Recently, vasohibin-1 (VASH1) was isolated as a negative feedback regulator of angiogenesis produced by endothe...
journal_title:Journal of biochemistry
pub_type: 杂志文章,评审
doi:10.1093/jb/mvs128
更新日期:2013-01-01 00:00:00
abstract::Sialoglycoprotein which exhibits inhibitory activity for hemagglutination by Hemagglutinating Virus of Japan (HVJ, Sendai virus) was isolated from the membrane of bovine erythrocytes. Purification steps for this sialoglycoprotein included extraction with lithium diiodosalicylate, phenol partition, precipitation with e...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134301
更新日期:1983-06-01 00:00:00
abstract::Protein carbonyls are reported to increase in aging and in pathologies such as Alzheimer's disease and ischemic injury. Detailed study of this important issue has, however, been hampered by lack of an appropriate method to identify individual carbonylated proteins. We describe here an immunoblot method to identify ind...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a021306
更新日期:1996-04-01 00:00:00
abstract::The major gangliosides were isolated from small intestine of 2-week-old mice of C3H/He strain and identified as GM3, GM1, and GD1a. These gangliosides characteristically contained a phytosphingosine moiety and alpha-hydroxy fatty acids. The gangliosides contained both N-glycolylneuraminic acid and N-acetylneuraminic a...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133894
更新日期:1982-06-01 00:00:00
abstract::Three isozymic forms, alpha, beta, and gamma, of Drosophila melanogaster aldolase are produced from a single gene by alternative usage of the triple exons 4 (4 alpha, 4 beta, and 4 gamma) [Shaw-Lee et al. (1992) J. Biol. Chem. 267, 3959-3967; Kim et al. (1992) Mol. Cell. Biol. 12, 773-783; Kai et al. (1992) J. Biochem...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124876
更新日期:1995-07-01 00:00:00
abstract::Streptococcus pyogenes nuclease A (SpnA) and streptococcal 5' nucleosidase A (S5nA) are two recently described virulence factors from the human pathogen S. pyogenes. In vitro studies have shown that SpnA is a nuclease that cleaves ssDNA and dsDNA, including the DNA backbone of neutrophil extracellular traps. S5nA was ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvy039
更新日期:2018-08-01 00:00:00
abstract::Ca2+-activated neutral protease (CANP) usually requires mM Ca2+ for activation. The sensitivity of CANP to Ca2+ is greatly enhanced by passing it through a casein-Sepharose column in the presence of Ca2+ ions. This conversion is ascribed to autolysis of CANP. The converted enzyme required 40 microM Ca2+ for 50% activa...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133463
更新日期:1981-07-01 00:00:00
abstract::An inhibitor of blood coagulation, a new protein with an apparent molecular weight of 34,000 and an isoelectric point of 4.9, was purified from human placental tissue by EDTA extraction. Five cDNA clones were isolated from the human placental lambda gt11 cDNA library using the mouse monoclonal antibody raised against ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122165
更新日期:1987-11-01 00:00:00
abstract::Pull-down assay and co-immunoprecipitation of cell extracts in which the integrase or reverse transcriptase of Moloney murine leukemia virus was transiently expressed showed that both enzymes interacted with PML proteins. In infected cells, interaction between the integrase and PML was also observed. Transient express...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvs063
更新日期:2012-08-01 00:00:00
abstract::Irradiation of isolated chloroplast thylakoids with TNP-ADP results in non-covalent binding and covalent incorporation of a reaction product of TNP-ADP formed by photosynthetic reduction into the so-called "tight" nucleotide binding site of CF1 [Ponse et al. (1992) Z. Naturforsch. 47c, 264-274]. CF1 extracted from thu...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124175
更新日期:1993-09-01 00:00:00
abstract::Microbacterium sp. M874 produced a glyceroglycolipid, di-O-12-methyl-tetradecanoyl-3-O-beta-D-galactopyranosyl-sn-glycerol, at about the 50 microM level. Though the strain was highly resistant to tertiary-butyl hydroperoxide (tBHP) in a glycolipid-productive medium, the resistance was reduced in a nonproductive medium...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a022664
更新日期:2000-05-01 00:00:00
abstract::The effect of the ODC-factor, which was partially purified from ascites fluid of mice bearing Ehrlich ascites hepatoma, on DNA synthesis in the normal mouse liver and spleen was studied, and target cells for the factor in the liver were examined. DNA synthesis in the liver increased about 4-fold over the basal level 3...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134438
更新日期:1983-09-01 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 active site of thermolysin is composed of one zinc ion and five polypeptide regions [N-terminal sheet (Asn112-Trp115), alpha-helix 1 (Val139-Thr149), C-terminal loop 1 (Asp150-Gly162), alpha-helix 2 (Ala163-Val176) and C-terminal loop 2 (Gln225-Ser234)]. To explore their catalytic roles, we introduced single amino...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/jb/mvn140
更新日期:2009-01-01 00:00:00
abstract::Affinity labeling with nucleoside polyphosphopyridoxals, especially those with 3 or 4 phosphate groups, was effective for identifying the lysyl residue(s) located at or near the binding site for ATP, GTP, UDP-Glc, or ADP-Glc in various proteins. Furthermore, kinetic analysis of the mutant enzymes, in which the labeled...
journal_title:Journal of biochemistry
pub_type: 杂志文章,评审
doi:10.1093/oxfordjournals.jbchem.a124834
更新日期:1995-06-01 00:00:00
abstract::A heat-labile, non-dialyzable factor(s) in soluble fractions from Escherichia coli strains and Bacillus subtilis was found to incorporate the radioactivity of [14C]glutamic acid into 95 degrees C CCl3COOH-insoluble fraction. Incorporation catalyzed by a partially purified factor from E. coli B required ATP, Mg2+, tRNA...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134236
更新日期:1983-04-01 00:00:00
abstract::The amino acid compositions, constituent polypeptides and bacteriochlorophyll (Bchl) contents of two kinds of Bchl-protein complexes isolated from Rhodopseudomonas palustris were examined. Spectrally dissimilar intracytoplasmic membranes obtained from cells cultured under different conditions were used as starting mat...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134110
更新日期:1982-12-01 00:00:00
abstract::In order to study the conformation of the side chain of lysine substrates bound to the active center of trypsin, two lysine analogs, cis- and trans-2,6-diamino-4-hexenoic acids (4,5-dehydrolysines) were synthesized and kinetic parameters for the hydrolysis of benzoyl methyl esters and phenylthiazolones of these analog...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a121695
更新日期:1986-07-01 00:00:00
abstract::Incubation of quiescent cultures of Swiss 3T3 cells with epidermal growth factor (EGF) caused an increase in c-myc mRNA. Under these conditions, EGF did not induce phosphoinositide turnover, formation of diacylglycerol, formation of inositol tris-, bis-, and monophosphates, protein kinase C activation, or Ca2+ mobiliz...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a121871
更新日期:1986-12-01 00:00:00
abstract::HUT-14 cells, tumorigenic human fibroblasts, express a mutant beta-actin which has a single amino acid substitution at position 244 (glycine to aspartic acid), in addition to normal beta- and gamma-actin. In order to characterize the biochemical function of the mutant beta-actin, actins were extracted and purified fro...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122333
更新日期:1988-04-01 00:00:00
abstract::The interaction of Pi with sarcoplasmic reticulum (SR) isolated from rabbit skeletal muscle was studied using bromocresol purple (BCP) as a probe and a dual-wavelength spectrophotometer. Two kinds of absorption-intensity changes controlled by a low concentration of Ca2+ (greater than 10(-6)M) were observed after addit...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a131461
更新日期:1977-02-01 00:00:00