Tài liệu Báo cáo Y học: Progressive apoptosis in chorion laeve trophoblast cells of human fetal membrane tissues during in vitro incubation is suppressed by antioxidative reagents pptx

... Progressive apoptosis in chorion laeve trophoblast cells of human fetal membrane tissues during in vitro incubation is suppressed by antioxidative reagents Kunio Ohyama 1 , Bo Yuan 1 , ... death in the chorion laeve trophoblast layer of human fetal membrane tissues during the late stages of pregnancy, the progression of apopto...

Ngày tải lên: 22/02/2014, 07:20

... the synthesis of poly(A) catalyzed by yeast poly(A) polymerase. The relative activity of diadenosine polyphosphates as effectors of the poly(A) synthesis was assayed as in Fig. 4, using 0.05 m M [a- 32 P]ATP ... on the catalytic properties of yeast poly(A) polymerase and on the intracellular role of dinucleoside polyphosphates, a family of compounds of increasing metabolic a...

Ngày tải lên: 21/02/2014, 01:21

... al.[8]suggeststhat this inhibitory complex can be the result of binding of TFPI to the enzyme–product Xa–VIIa–TF complex and this is the main pathway of inhibition of VIIa–TF during ongoing factor X ... Verification of the hypothesis of the enzyme–product complex inhibition by TFPI. Factor Xa is inhibited by TFPI in the presence or in the absence of VIIa–TF. The con...

Ngày tải lên: 22/02/2014, 04:20

... the activity of the enzyme was measured by the dinitrosalicylic acid method. Inhibition of the enzyme activity by glucose, maltose and cyclohexaamylose For the study of the enzyme inhibition by glucose, ... not affected by the inhibitors of the enzymatic activity. Therefore the iodine staining method is well suited for extensive kinetic analyses of purified b-amylases. Stab...

Ngày tải lên: 22/02/2014, 07:20

... allow chemical characterization of each. CO3-1 was identified as trehalose by TLC as well as by MALDI-TOF MS analysis of the products obtained by permethylation and hydrolysis, andalsoby 1 H-NMR. Oligosaccharide ... synthesis of trehalose-containing trisaccharide using various glycohydrolases. Carbohydr. Res. 199, 227–234. 23. Muramatsu, M. & Nakakkuki, T. (1995) Enzymatic synt...

Ngày tải lên: 22/02/2014, 07:20

... actions, for each sub-task type of the in- car system. 121 An ISU Dialogue System Exhibiting Reinforcement Learning of Dialogue Policies: Generic Slot-filling in the TALK In- car System Oliver Lemon, Kallirroi ... the system, as well as the pur- poses and future use of the system, and surveys the research issues involved in its construction. Evaluation of this system (i.e. compar...

Ngày tải lên: 22/02/2014, 02:20

... properties. In this work we took advantage of the specific labeling with PLP of Lys288 in E. coli PEP carboxykinase to gain insight into conformational alterations of the protein upon ligand binding in ... dynamical properties of the local environment of the P-pyridoxyl group due to changes of the protein conformation induced by the binding of PEP or the ternary combinati...

Ngày tải lên: 21/02/2014, 01:21

... stereoselective synthesis of enantiomerically pure mono- and di-O-hexadecyl-b- D -glucosylglycerol ethers by epoxidation of an allyl b- D -glucopyranoside asymmetrically induced by the glucide moiety. Tetrahedron: ... 6-deoxy-6-isothiocyanato-a- D - glucopyranoside (1e), b- D -glucopyranosyl isothiocyanate (3c)andb- D -glucopyranosyl phenyl isothiocyanate (3d). Phosphorylation of EI...

Ngày tải lên: 21/02/2014, 01:21

... methyltransferase Dnmt1 is controlled by interaction of the catalytic domain with the N-terminal part of the enzyme leading to an allosteric activation of the enzyme after binding to methylated DNA. J. ... Kinetically this reaction scheme means that two methyl groups are always introduced, one slowly by Dnmt3a or by de novo methylation catalyzed by Dnmt1 and the second one ver...

Ngày tải lên: 21/02/2014, 01:21

... polysaccharides, in particular pectin. Two types of arabinogalactan side chains are present in pectin. Type I consists of a chain of b-1,4 linked D -galactopyranose linkages, while type II contains a backbone ... CREA binding sites in the promoter of galA is functional. Hydrolysis of arabinogalactans with a different degree of L -arabinose substitution by GALA results i...

Ngày tải lên: 21/02/2014, 01:21