Báo cáo khoa học: Oxygen binding and its allosteric control in hemoglobin of the primitive branchiopod crustacean Triops cancriformis pdf

... effector -binding model with h identical proton -binding sites and m identical Mg 2+ -bind- ing sites per oxygen- binding site. It is assumed that the binding of protons and Mg 2+ occurs independently. ... ¼ X k i¼1 ðY i À ^ Y i Þ 2 s 2 Y i ð4Þ where Y i and ^ Y i are the measured and predicated satura- tions of the ith point, and k is the number of data points....

Ngày tải lên: 23/03/2014, 09:20

... (F340) increases, whereas the fluorescence intensity at 380 nm (F380) decreases upon the binding of Ca 2+ . The change in the ratio of F340 ⁄ F380 determined the change in Ca 2+ concentration inside ... Ca 2+ ⁄ CaM -binding IQ domain that is involved in the activa- tion of Ras-GRF1. Stimulation of all the splice variants of the G s -coupled serotonin receptor...

Ngày tải lên: 19/02/2014, 18:20

... allele be insufficient in maintaining its own expression in the intestinal nonendocrine cells, and in preventing the formation of intestinal polyps for the nonendocrine intestinal epithelia? We ... Cis-Acting elements and tran- scription factors involved in the intestinal specific expression of the rat calbindin-D9K gene: binding of the intestine-specific transc...

Ngày tải lên: 30/03/2014, 16:20

... completion of most of the studies described herein. Given the conserved nature of this residue we there- fore mutated the residue back to arginine and found that none of the properties of the protein ... 2006 The Authors Journal compilation ª 2006 FEBS 3249 with the mobilities of the a and a¢ subunits of casein kinase II (Fig. 2A). To determine if these were...

Ngày tải lên: 07/03/2014, 12:20

... adjusted and the reference cell value subtracted. Binding analyses were performed using the Langmuir binding model (1 : 1 binding interaction), the heterogeneous ligand -binding model or the bivalent analyte ... immobilized shFcRn. By fitting the binding data to this model, the derived binding kinetic rates for binding to the first ligand (one side of the Fc wit...

Ngày tải lên: 16/03/2014, 06:20

... tags, the lexical forms and the in- flection forms of the two morphemes pre- ceding µ; 2. the POS tags and the lexical forms of the two morphemes following µ; 3. the lexical form and the in ection ... not. During the test phase, first the ranking of the candidate classes for a given example is as- signed by the stochastic model as in the training. Then...

Ngày tải lên: 17/03/2014, 08:20

... signs or the conventions of their combination in representing phonic fea- tures of spoken languages. The terminology now most used in Britain in describing spoken languages permits description ... for example, class , in 8. In passing, the choice of sound as a term for the first concept in the publications of most members of the London University School...

Ngày tải lên: 23/03/2014, 13:20

... PsSiR and prepared a recombinant holoenzyme of PsSiR. Using the active recombinant SiR, we examined basic DNA -binding properties of SiR and the relationship between SiR activity and DNA -binding ... Plant Cell 10, 859–872. 20 Sato N & Ohta N (2001) DNA -binding specificity and dimerization of the DNA -binding domain of the PEND protein in the chloroplast en...

Ngày tải lên: 30/03/2014, 08:20

... with binding of O 2 . The markedly lower overall heat of oxygenation in the hexacoordinate nerve globins of S. solidissima and D. rerio than in the pentacoordinate globins of A. acul- eata and ... 2006) doi:10.1111/j.1742-4658.2006.05158.x Oxygen- binding globins occur in the nervous systems of both invertebrates and vertebrates. While the function of in...

Ngày tải lên: 30/03/2014, 11:20

... (binding of the labelled psbA probe only 40% of that in the control) in the presence of the mutant factor (300Q/H). Hence this sigma mutant counteracted the effect of M-10 T/A. None of the other ... tested the effect of the resulting sigma mutant SASIG1–455R/H in competition EMSAs (Fig. 6). The maltose binding portion of the recombinant proteins did...

Ngày tải lên: 31/03/2014, 07:20