Abstract:
:Cucumisin was isolated from prince melon sarcocarp by means of a simple purification procedure. Serine protease inhibitors such as soybean trypsin inhibitor, ovomucoid, and aprotinin had no effect on the enzyme activity. alpha 2-Macroglobulin showed 38% inhibition of the original caseinolytic activity of cucumisin. The favorable synthetic substrates for cucumisin were Glt-Ala-Ala-Pro-Leu-pNA and Suc-Ala-Ala-Pro-Phe-pNA. The constant (kcat/Km) for Suc-Ala-Pro-Ala-pNA was found to be 30 times greater than that for Suc-Ala-Ala-Ala-pNA. The substrate specificity of cucumisin for oligopeptides and proteins was shown to be broad.
journal_name
J Biochemjournal_title
Journal of biochemistryauthors
Uchikoba T,Yonezawa H,Kaneda Mdoi
10.1093/oxfordjournals.jbchem.a124817subject
Has Abstractpub_date
1995-05-01 00:00:00pages
1126-30issue
5eissn
0021-924Xissn
1756-2651journal_volume
117pub_type
杂志文章abstract::The kinetic properties of the hydrolyses of 8-Br ATP and 8-SCH3 ATP by myosin [EC 3.6.1.3] and actomyosin were compared with those of ATP, and the following results were obtained. The Ca-NTPase activities of myosin using these two ATP analogs as substrates were smaller than that of ATPase, and the NTPase activities to...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a131411
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pub_type: 杂志文章
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更新日期:1996-10-01 00:00:00
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journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a124185
更新日期:1993-09-01 00:00:00
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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
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journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134541
更新日期:1983-12-01 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
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journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:
更新日期:1991-02-01 00:00:00
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更新日期:2012-03-01 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:2017-03-01 00:00:00
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journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a131190
更新日期:1976-06-01 00:00:00
abstract::Acetohydroxy acid synthetase [EC 4.1.3.18] of Neurospora crassa has been solubilized from a mitochondrial pellet fraction by sonic treatment in 1.0 M potassium phosphate buffer at pH 7.5 containing 10 mM MgSO4 and centrifugation at 180,000 X g for 20 min. The soluble enzyme thus obtained has a high specific activity a...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:
更新日期:1975-01-01 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
abstract::Homoserine O-acetyltransferase [EC 2.3.1.31] partially purified from Brevibacterium flavum was found to be specifically inhibited by the metabolic end products methionine and S-adenosylmethionine only when the enzymatic reaction was performed in the presence of cysteine or dithiothreitol, or after the preincubation of...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133342
更新日期:1981-05-01 00:00:00
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journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a121807
更新日期:1986-10-01 00:00:00
abstract::Subtilisin BPN' was chemically converted to thiolsubtilisin and the interaction of this modified enzyme with Streptomyces subtilisin inhibitor (SSI) was examined. SSI competitively inhibited the esterolytic activity of thiolsubtilisin toward p-nitrophenyl acetate with a K1 value of 1.3 X 10(-5) M at pH 7.5 Spectrophot...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a131660
更新日期:1977-07-01 00:00:00
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journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134352
更新日期:1983-07-01 00:00:00
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journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123797
更新日期:1992-05-01 00:00:00
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journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:
更新日期:1975-07-01 00:00:00
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journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a122095
更新日期:1987-09-01 00:00:00
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journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133603
更新日期:1981-11-01 00:00:00
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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::Pure recA protein was easily obtained from Escherichia coli harboring plasmid pTM-2 which carried the recA gene by two chromatographic steps on phosphocellulose and DEAE-cellulose. RecA protein was stable in the pH range of 6 to 9 at 25 degrees C. RecA protein was found to aggregate highly under these conditions. Lowe...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a133555
更新日期:1981-10-01 00:00:00
abstract::The inhibitory effects of galloyl pedunculagin (GP) and eugeniin on the phosphorylation of histone H2B by cAMP-dependent protein kinase (A-kinase) and autophosphorylation of its beta-regulatory subunit (A-kinase beta) were examined in vitro. It was found that (i) GP (ID(50) = approx. 50 nM) effectively inhibits the ac...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a002871
更新日期:2001-03-01 00:00:00
abstract::To examine whether serine proteases of rat liver chromatin are also involved in the degradation of newly synthesized and unbound ribosomal proteins and histones, like the nuclear thiol protease which we reported previously (Tsurugi, K. & Ogata, K. (1979) Eur. J. Biochem. 101, 205-213), in vivo experiments were carried...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a134257
更新日期:1983-05-01 00:00:00
abstract::Mitochondrial porin is a major integral membrane protein of the outer membrane. To assess the stop-transfer sequence in the yeast porin molecule (P), we constructed the following chimeric proteins. (i) The signal sequence of interleukin 2, a secretory protein, was fused to the amino-terminus of porin (SP). (ii) The ma...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a123884
更新日期:1992-08-01 00:00:00
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journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a132556
更新日期:1979-08-01 00:00:00
abstract::The activities of the digestive enzymes, maltase [EC 3.2.1.20], sucrase [EC 3.2.1.26], trehalase [EC 3.2.1.28], Leucine aminopeptidase [EC 3.4.11.1], and alkaline phosphatase [EC 3.1.3.1] were measured in various regions of the small intestine of rats. The activities of all these enzymes were much higher in the jejunu...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a130930
更新日期:1975-09-01 00:00:00
abstract::Knockout mice lacking glycosyltransferases or sulfotransferases provide unequivocal evidence that the carbohydrate moieties of glycoproteins, glycolipids, and proteoglycans play essential roles in various biological phenomena such as development, the immune response, and tissue functions. Examples of abnormalities of ...
journal_title:Journal of biochemistry
pub_type: 杂志文章,评审
doi:10.1093/oxfordjournals.jbchem.a022590
更新日期:2000-02-01 00:00:00
abstract::The direct ion-dipolar interactions between potassium ion (K(+)) and the two hydroxyl groups of the substrate are the most striking feature of the crystal structure of coenzyme B(12)-dependent diol dehydratase. We carried out density-functional-theory computations to determine whether K(+) can assist the 1,2-shift of ...
journal_title:Journal of biochemistry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.jbchem.a022498
更新日期:1999-10-01 00:00:00