structure of the carbon oxygen double bond

... parts of Z japonica The δ13C in the roots and rhizomes seems to be larger than the δ13C in the leaves and stems For the same species of seagrass, when the δ13C of the parts were compared, the difference ... we think that the characteristics of the fatty acid structure in the leaves and stems differ from those of the roots and rhizomes because the content of the fatty acid 18:3n3 in the leaves and ... shows the characteristics of carbon stable isotope and fatty acid structure of Z japonica Furthermore, we compared the characteristics of carbon stable isotope and fatty acid structure of Z japonica...

Ngày tải lên: 05/09/2013, 10:17

... in their homing position Each process blocked in the course of task execution relies on the other processes for removal of the barrier Essentially, the proof in question is a demonstration of the ... they are called the P-operation and the V-operation A process, "Q" say, that performs the operation " P (sem)" decreases the value of the semaphore called "sem" by If the resulting value of the ... the value of the semaphore called "sem" by If the resulting value of the semaphore concerned is positive, the V-operation in question has no further effect; if, however, the resulting value of...

Ngày tải lên: 12/09/2012, 15:05

... observed in the active treatment groups when compared to the placebo (data not shown) These findings further demonstrate the safety of 5-Loxin® and Aflapin® in humans During the course of the 90-day ... [31] The pain subscale was the average of the first five questions of WOMAC and measured using the NU scale from ('no pain') to 100 ('extreme pain') for each question The stiffness subscale was the ... D, Raychaudhuri SP A double blind, randomized, placebo controlled study of the efficacy and safety of 5-Loxin® for treatment of osteoarthritis of the knee Arthritis Res Ther 2008; 10(4): R85...

Ngày tải lên: 25/10/2012, 11:40

... NE2 of His31, bound to the metal, in the company of a water oxygen, from the apical positions The manga˚ nese was only 0.06 A out of the equatorial plane (Table 3) The angles around the metal cofactor ... because the tertiary structure of ApeSOD has not been elucidated In the present study, for the first time, we describe the crystal structure of ApeSOD In particular, we focus on the coordination of the ... additional water oxygen, which, together with the OD2 of Asp165, the NE2 of His79 and the NE2 of His169, formed an equatorial plane (Fig 3B) The metal ion and the addi˚ tional water oxygen were only...

Ngày tải lên: 14/02/2014, 22:20

Ngày tải lên: 15/02/2014, 17:20

... to the intensification of the sovereign debt crisis in the euro area The pricing of risk in the repo market has become more dependent on the geographic origin of both the counterparty and the ... Avenue avoids the problems of having to define ex ante the scope of activity to be separated or prohibited Against the backdrop of the ongoing financial crisis and the fragility of the financial ... entity by the funds of the deposit bank, and hence limit the liability of taxpayer and the deposit insurance system; 3) avoid the excessive allocation of lending from the deposit bank to other financial...

Ngày tải lên: 16/02/2014, 10:20

... constraints Solution structure of SAIL At3g16450.1 Assignment of the NOE peaks of At3g16450.1 and the structure determination were accomplished by use of the cyana program [17,18] The structural statistics ... backbone trace of the NMR structure of the C-terminal domain 1JOT), a plant lectin, as the closest structure The root mean square deviation values for the N- and C-terminal ˚ domains versus the agglutinin ... analysis of At3g16450.1 with sugars Fig Three-dimensional NMR structure of At3g16450.1 (A) Superposition of the 20 energy-minimized conformers that represent the 3D solution structure of the N-terminal...

Ngày tải lên: 18/02/2014, 14:20

... to the residue in the midpoint of the respective loop, as shown in Fig To the east of the active site the 37- and 60-loops border the S2¢ pocket of the proteinase The observed differences in the ... that the most similar regions of these proteinases mediate interaction of the two b-barrels, formation of the catalytic machinery and structures required for binding of the main chain of the substrate ... below) The southern boundary of the active site cleft of DESC1 is formed by the 145 autolysis loop The backbone of this loop differs markedly from the other serine proteinases, making the active...

Ngày tải lên: 19/02/2014, 00:20

... and determines the shape of the active site entry (e) The structure of the active site is essentially identical with the active sites of the MshB and LpxC proteins The conservation of catalytically ... indicates the C-terminal part The dimer’s formation is established by the incorporation of the b8-strand of one monomer into a b-sheet of the other monomer The position of the zinc ion is indicated ... the presence of acetate in the crystal structure The binding of acetate in the active site is a further indication that the enzyme may be involved in deacetylation because acetate is one of the...

Ngày tải lên: 19/02/2014, 00:20

... information on the heme pocket structure As shown in Table 2, the hyperfine splitting constants of the 15N nucleus of the distal NO and of the 14N nucleus of the proximal His of the GmHO-1 complex ... of the heme pocket of GmHO-1 might be associated with the smaller values of Kazide for GmHO-1 and SynHO-1, and with the ferric character of the heme The Kimidazole values of the three kinds of ... unique structure of the opening of the heme pocket of GmHO-1 Such a structure might inhibit the approach of imidazole to the heme in GmHO-1, explaining the smallest Kimidazole value Mechanism of...

Ngày tải lên: 19/02/2014, 05:20

... whereas binding of a minimum of m Mn2+ ions forms the inactive complex The sizes of the active and inactive fractions are the result of competitive metal binding to RNA The values of n and m are ... protected The Cr.LSU pattern is distinct in that the rst three nucleotides of P7, and the 3Â-half of J8 7, are not protected The rst three nucleotides of P7 are part of the G binding site, as are the ... the last three nucleotides (AU XG) of the intron The sizes of the intron (InDGb) and 5Â exon (5E) are indicated The arrow indicates cleavage of the pre-RNA at the 5Â splice site by GMPG* (B, C)...

Ngày tải lên: 19/02/2014, 07:20

... reduction of the double bond by FMN, the N10-N5-C5 angle value of 92° (Fig 7B) is distinct form the range of angles (125° to 170°) observed in flavoenzyme-substrate complexes [31] Any putative motion of ... re-oxidation of the flavin and the formation of the hydride-Meisenheimer complex of TNT (C) As for panel B except the spectral changes are recorded over an extended time period and show degradation of the ... bond in close proximity of the N5 atom A putative flipping motion of the progesterone molecule along an axis parallel to the FMN plane aligns the C1-C2 with the 4666 plane of the isoalloxazine ring...

Ngày tải lên: 20/02/2014, 02:21

... [18] The structure of the helical coil a2/a3 allows us to interpret the consequences of the six mutations As P153(152) and G162(161) are buried in the protein core, replacement of each of these ... cluster in these two regions Knowledge of the structure of a larger portion of MeCP2 including the transcriptional repression domain would resolve these speculations and clarify the role of the helical ... subsequent structure calculations These newly calculated structures were then used for the next step in the iteration process This procedure was continued until the quality of the structure could...

Ngày tải lên: 21/02/2014, 00:20

... biosynthesis of Escherichia coli Fig The complete chemical structure of the carbohydrate backbone of the LPS from Acinetobacter baumannii strain ATCC 19606 Ó FEBS 2002 [26,27] Then, the biosynthesis ... E2, and F1 and E4 The signals of the anomeric carbons in Kdo residues were assigned on the basis of the intraresidual correlations between H-3eq and C-2 The a-con®guration of the Kdo residues ... Monosaccharide analyses of the LPS from A baumannii strain ATCC 19606 revealed the presence of D-Glc, D-GlcN, D-GalN, and Kdo The D-con®guration of Kdo was determined on the basis of the optical rotation...

Ngày tải lên: 21/02/2014, 03:20

... configuration On the basis of the data obtained, it was concluded that the O-polysaccharide P mirabilis G1 has the structure shown in Fig This structure is similar to that of the O-polysaccharide of P mirabilis ... correlation of protons at carbons bearing nitrogen (H2) to the corresponding carbons (C2) revealed by the 1H,13C HMQC experiment The signals for the carboxyl groups (C6 of GlcA and GalA and C1 of Lys) ... NMR spectrum of the O-polysaccharide of P mirabilis G1 Ó FEBS 2002 1410 Z Sidorczyk et al (Eur J Biochem 269) Fig Structures of the O-polysaccharides of the cross-reactive LPS of P mirabilis...

Ngày tải lên: 21/02/2014, 15:20

... mobility with respect to the rest of the structure Further studies of the receptor bound forms of the chimera and other related ligands will be necessary to define the nature of the interactions leading ... Several of these were identified in previous studies of EGF, and the backbone fold of the chimera is clearly similar to those of the EGF structures The presence of a backbone hydrogen bond from the ... all the EGF structures, leading to the conclusion that the increased activity of the chimera is not as a result of a structural change Significantly, a bond between the NH of residue 15 and the carbonyl...

Ngày tải lên: 22/02/2014, 07:20

Ngày tải lên: 23/02/2014, 19:20

... network of hydrogen bonds to the carbonyl oxygen of Pro155, the main-chain amide groups of Ile128 and Arg129 Despite these differences in the coordination of the residues in the tip, the fold of the ... molecules, expose the 2¢- or 3¢-hydroxyl of the 3¢-end ribose of the tRNA to the catalytic centre, break the anhydride bond and link the amino acid to the tRNA by formation of an ester bond These functions ... with the class 1a A aeolicus MetRS:tRNAMet and T thermophilus MetRS (apo) structures reveal that the position of the KMSKS loop in our structures is the result of a rotation of  90° around the...

Ngày tải lên: 06/03/2014, 22:21

... the coordinates of the apoECD tt dimer (Protein Data Bank code: 1DP4) [10] using the program O [25] The tt dimer model for ANP–ECD was similarly constructed on the basis of the structure of the ... consistent with the X-ray structure of ANP–ECD (Fig 2D) Comparison of the 3D reconstructions by EM and the crystal structures In the crystal packing of apoECD, the buried surface areas in the hh and ... represent the physiological structures On the other hand, it has been proposed that the hh dimer and tt dimer structures both occur, and represent the inactive and the hormone-activated states of the...

Ngày tải lên: 07/03/2014, 03:20