1 h nmr spectra of secondary reference compounds

Báo cáo khoa học: Characterization of oligosaccharides from the chondroitin/dermatan sulfates 1 H-NMR and 13 C-NMR studies of reduced trisaccharides and hexasaccharides doc

Ngày tải lên : 16/03/2014, 14:20

... those marked with an asterisk (*) Residue Proton CS060606 (p.p.m.) DS040404 (p.p.m.) DUA (F) H1 H2 H3 H4 H1 H2 H3 H4 H5 H6 H6 ¢ NAc H1 H2 H3 H4 H5 H1 H2 H3 H4 H5 H6 H6 ¢ NAc H1 H2 H3 H4 H5 H1 H1 ¢ ... (C) H1 H2 H3 H4 H5 H6 H6 ¢ CH3 H1 H2 H3 H4 H5 H1 H1 ¢ H2 H3 H4 H5 H6 H6 ¢ CH3 4.558* 3. 917 * 3.743 3.988* 3.967* 4.24 4.24 2.056* 4.628* 3.480* 3.638 3.77 3.77 3.70 3.72 4.295 4.257 4.492* 4 .14 6* ... C4 C5 10 2.83 71. 54 67. 51 109. 41 147. 01 – 10 2.97 55.02 78.24 79.04 77. 41 63. 91 25.27 17 7.79 65. 61 74.58 73.04 82.89 76 .11 10 4.25 72.60 68.89 11 0 .11 14 7.62 17 2. 21 103.70 54 .12 82.50 70. 51 75.60...

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Báo cáo khoa học: Structural function of C-terminal amidation of endomorphin Conformational comparison ofl-selective endomorphin-2 with its C-terminal free acid, studied by 1 H-NMR spectroscopy, molecular calculation, and X-ray crystallography pot

Ngày tải lên : 30/03/2014, 20:20

... 2 .19 1. 93 2. 01 2 .16 1. 87 1. 90 15 4 15 5 15 4 15 7 14 6 17 4 16 5 15 8 14 8 13 9 13 9 16 7 14 8 16 7 17 3 17 2 16 2 13 8 14 5 16 4 15 6 14 6 17 0 16 4 x,y,z x +1, y,z x +1, y,z 1- x,y +1 ⁄ 2,-z x,y,z x,y,z x,y,z x,y,z x -1, y,z ... Phe4 NH Phe4 NH Phe4 NH Phe4 NH Medium Weak Weak Medium Medium Tyr1 2, 6H Pro2 b1 Phe3 b2 Phe3 2, 6H Phe3 2, 6H Phe3 3, 5H Phe3 3, 5H Phe3 Phe3 Phe4 Phe4 Phe4 Phe4 Phe4 a 2, 6H 2, 6H 2, 6H 3, 5H a 2, 6H ... 2, 6H Phe3 3, 5H Phe3 3, 5H Phe3 Phe4 Phe4 Phe4 Phe4 Phe4 a a 3, 5H 2, 6H a 2, 6H Weak Weak Medium Medium Medium Medium trans EM2OH Pro2 b1 Pro2 c1 Phe3 b1 Phe3 b2 Phe3 Phe3 Phe4 Phe4 NH 2, 6H 2, 6H NH...

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$Báo cáo khoa học: Detergent-resistant membrane fractions contribute to the total 1 H NMR-visible lipid signal in cell potx$

Báo cáo khoa học: Detergent-resistant membrane fractions contribute to the total 1 H NMR-visible lipid signal in cell potx

Ngày tải lên : 23/03/2014, 17:21

... of 18 :0, 18 :2 + 18 :3 and 18 :1 at the expense of 16 :0, 14 :0 and 16 :1, whereas there was a marked increase in the amount of 16 :0 and a decrease in the amount of 16 :1 and 17 :1 in the lipid droplet ... with

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Báo cáo khoa học: H NMR study of the molecular structure and magnetic properties of the active site for the cyanomet complex of O2-avid hemoglobin from the trematode Paramphistomum epiclitum pdf

Ngày tải lên : 23/03/2014, 17:22

... CeHs NH CaH CbH CbHÂ NH CaH CbH CbHÂ NdH NH CaH CbH CcH3 NH CaH CbH CcH3 CcH3Â NH CaH CbH CbH CdHs CfH NH CaH CaHÂ NH CbH CbHÂ CdHs CeHs CfH NH CaH CbH CdHs CeHs CfH NH CaH CbHs CcH CeH3 CaH ... CbH CdH NH CaH CbH CdHs CeHs CfH NH CaH CbH CbHÂ CdHs CeHs OH NH CaH CbH3 NH CaH CbH CcH3 NH CaH CbH CbHÂ CcH CdH3 CdH3Â NH CaH CbH3 NH CaH CbH 8.50 5.04 3.90 3.60 8.50 11 .79 32. 51 9.60 5. 01 ... Protons Heme Heme His98(F8) dDSS(obs) [T1] 2-CH3 7-CH3 12 -CH3 18 -CH3 3-Ha 3-Hbs 8-Ha 8-Hbs 13 -Ha 13 -Hbs 17 -Has 17 -Hbs 5 -H 10 -H 15 -H 20 -H NH CaH CbH CbH NdH 6 .18 23.64 [88] 7.97 14 .10 [14 3] 12 .40 [18 2]...

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nmr spectra of polymers and polymer additives

Ngày tải lên : 01/06/2014, 10:11

... the effect of chemical shift is TABLE I .1 NMR Properties of Selected Nuclei Nucleus Spin Natural abundance (%) Larmor frequency (MHz) 1H 1/ 2 19 F 1/ 2 10 0 94 .1 31P 1/ 2 10 0 40.5 13 C 1/ 2 1. 11 25 .1 ... II-A -15 Poly(ethylene-co -1- pentene) II-A -16 Poly(ethylene-co -1- hexene) [~5 %H] II-A -17 Poly(ethylene-co -1- hexene) [~0 .1% H] II-A -18 Poly(ethylene-co -1- hexene) [~0 .1% H] , Cr-catalyzed II-A -18 H Poly(ethylene-co -1- hexene) ... II.2 1H NMR Chemical Shifts for Some Ethylene Copolymers Polymer H1 H2 H3 H4 H5 H6 H7 Poly(ethylene-co-vinyl acetate) 5.40 1. 50 1. 29 1. 90 — — — Poly(ethylene-co-acrylic acid) 2.38 1. 62 1. 27 9.55...

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An error analysis of using reference in written english by secondary school studend = phân tích lỗi của học sinh THPT tong việc sử dụng phép quy chiếu trong tiếng anh viết

Ngày tải lên : 18/12/2013, 10:08

... interesting book than that The salary of the professor is higher than (that/ this/ those) of the teacher Some people spend (them/ their/ theirs) whole life deceiving others (Everyone/ these/ they) gave ... all 10 questions, were caused by the wrong use of reference items In question 1: The salary of the professor is higher than (that/ this/ those) of the teacher The students use the item this not ... a cohesive device 1. 1 .1 The definition of reference .4 1. 1.2 Direction of reference .4 1. 1.2 .1 Exophora 1. 1.2.2 Anaphora .6 1. 1.2.3 Cataphora...

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Tài liệu BIOCHEMICAL TARGETS OF PLANT BIOACTIVE COMPOUNDS A pharmacological reference guide to sites of action and biological effects doc

Ngày tải lên : 17/02/2014, 05:20

... tetrahydrofuran (THF) ( C ) is formed linking the two phenyls, that is, Phe-CH2-CH(CH,)-CH(CH3)-CH2-Phe +Phe-CH2-C40-CH2-Phe or Phe I C Phe (in which the T H F moiety is fused with one of the phenyls) ... sidechain (C3)C-C link, that is, Phe-Ct3 + Phe-C3 +Phe-C3-C3-Phe (typically Phe-CH2-CH(CH3)-CH(CH3)-CHdhe) However, alternative linkages could be phenyl C-C links (i.e Phe-C3 Phe-C3 +C3-Phe-Phe-C3) ... (3,4-dihydroxyphenylCH2-CH(CH3)-CH(CH3)-CH2-(3',4'-dihydroxyphenyl)),the bitter-tasting phyllanthin and the cAMP phosphodiesterase inhibitor cis-hinokiresinol Simple lignans of the C3-Phe-Phe-C3 kind are...

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Báo cáo khoa học: NMR investigations of subunit c of the ATP synthase from Propionigenium modestum in chloroform/methanol/water (4 : 4 : 1) pot

Ngày tải lên : 08/03/2014, 10:20

... resonances of aliphatic side chains were achieved by 3D 15 N-resolved [ 1H, 1H] -TOCSY and 3D 15 Nresolved [ 1H, 1H] -NOESY Furthermore, homonuclear 2D [ 1H, 1H] -TOCSY and 2D [ 1H, 1H] -NOESY spectra were ... C-resolved HCCH-TOCSY (sm ¼ 14 ms) [29], 3D 15 N-resolved [ 1H, 1H] -NOESY (sm ¼ 60 ms) [30], 3D 13 Cresolved [ 1H, 1H] -NOESY (sm ¼ 60 ms) [ 31] , and 3D 13 Cresolved [ 1H, 1H] -NOESY (sm ¼ 15 0 ms) Spectra ... Am Chem Soc 11 1, 15 15 15 17 Bax, A., Clore, G.M & Gronenborn, A.M (19 90) 1H- 1H correlation via isotropic mixing of 13 C magnetization, a new threedimensional approach for assigning 1H and 13 C spectra...

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Báo cáo khoa học: Total chemical synthesis and NMR characterization of the glycopeptide tx5a, a heavily post-translationally modiﬁed conotoxin, reveals that the glycan structure is a-D-Gal-(1ﬁ3)-a-D-GalNAc pot

Ngày tải lên : 23/03/2014, 13:20

... GalNAc :H1 Gal :H2 Gal :H2 4.79 1. 79 3.77 4.79 3.53 3.53 10 ThrcCH3 12 AlaaH 10 ThrcCH3 10 ThrbH 11 AlaßCH3 12 AlaaH 0.98 4.07 0.98 4.04 1. 09 4.07 anomeric proton of Gal, which identiﬁed that the Gal ... Disaccharide: Gal-GalNAc Proton ( 1H) GalNAc :H1 GalNAc :H3 GalNAc :H3 Gal :H1 Gal :H1 Gal :H2 GalNAc:CH3 GalNAc:CH3 GalNAc:CH3 4.79 3.77 3.77 4.82 4.82 3.53 1. 79 1. 79 1. 79 GalNAc :H2 GalNAc :H2 Gal :H1 Gal :H2 ... increments in t1 and spectral widths of 8000 Hz and 17 5 91 Hz in the 1H and 13 C dimensions, respectively A total of 256 summed scans were collected with a relaxation delay of 1. 3 s All 1H and 1H -13 C correlation...

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Báo cáo khoa học: Solution structure of long neurotoxin NTX-1 from the venom of Naja naja oxiana by 2D-NMR spectroscopy pot

Ngày tải lên : 23/03/2014, 13:20

... Saenger, W (19 91) The reﬁned crystal structure of a-cobratoxin 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 ˚ from Naja naja siamensis at the 2.4 A resolution J Biol Chem 266, 215 30– 215 36 Dewan, ... ones, although the length of loop I is longer in short neurotoxins The NMR structure of NTX -1 is closest to that of the a-cobratoxin crystal The superposition of these two ˚ structures shows an ... that although this group of structures has a typical three-ﬁnger shape, they have subtle differences with each other The NMR structure reveals some minor conformational changes that might be very...

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Báo cáo Y học: NMR structure of the HIV-1 regulatory protein Vpr in H2O/triﬂuoroethanol Comparison with the Vpr N-terminal (1–51) and C-terminal (52–96) domains pot

Ngày tải lên : 31/03/2014, 23:20

... that this a helix is stabilized by COi-NHi+4 hydrogen bonds throughout the (17 –33) segment of the molecule The second a helix, residues His40 to Glu48, also has amphipathic properties as the hydrophilic ... side, and the second and the third helices on the other side 2. 6H Tyr50 3. 5H Tyr50 2. 6H Tyr50 3. 5H Tyr50 2. 6H Tyr50 3. 5H Tyr50 2. 6H Tyr50 3. 5H Tyr50 2. 6H Tyr50 3. 5H Tyr50 b1 Tyr50 b2 Tyr50 b1 Tyr50 ... properties as the hydrophilic side chains of Ser 41, Gln44 and Glu48 are located on one side of the helix while the hydrophobic side chains of Leu42, Ile46 are on the other (Fig 7II) This helical conformation...

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Wide Spectra of Quality Control Part 1 pdf

Ngày tải lên : 19/06/2014, 08:20

... 1 ≥ 0 .1 ≥ 0. 01 ≥ 0.0 01 ≥ 0.00 01 ≥ 0.000 01 ≥ 0.0000 01 ≥ 0.00000 01 Analyte ratio 10 -1 10 -2 10 -3 10 -4 10 -5 10 -6 10 -7 10 -8 10 -9 Unit 10 0% 10 % 1% 0 .1% 10 0 ppm 10 ppm ppm 10 0 ppb 10 ppb ppb ... Chien-Yi Huang, Ming-Shu Li, Shan-Yu Huang, Cheng-I Chang and Min-Hui Huang VII Preface Quality control is a standard which certainly has become a style of living With the improvement of technology ... heights 10 to 20 times higher than the baseline noise If the required precision of the method at the limit of quantitation has been specified, the EURACHEM approach can be used A number of samples...

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Applying side effects of anti fibrotic compounds to promote neovascularization for tissue engineering 1

Ngày tải lên : 12/09/2015, 08:18

... Engineering 1. 2 HIF -1 : An Alternative Approach to Neovascularization 1. 3 Regulation of HIF -1 1.4 HIF -1 Target Genes 1. 5 HIF -1 Promotes Angiogenesis 1. 6 HIF Prolyl 4-Hydroxylases 1. 7 Prolyl 4-Hydroxylase ... Reaction and Wound Healing 19 1. 11 Collagen Biosynthesis 21 1 .12 Inhibition of Collagen Biosynthesis Using Prolyl Hydroxylase Inhibitors 22 1. 13 Selection of Prolyl 4-Hydroxylase Inhibitors 23 ii ... involved in both collagen biosynthesis and hypoxia inducible factor -1 (HIF -1 ) degradation While prolyl 4-hydroxylase inhibitors (PHi) have been shown to inhibit collagen biosynthesis, limited...

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NMR study of the human NCK2 SH3 domains structure determination, binding diversity, folding and amyloidogenesis 1

Ngày tải lên : 14/09/2015, 14:09

... properties of the hNck2 SH3 domains 1. 5.2 Secondary structure transition study of hNck2 SH3 -1 domain The unfolding of SH3 -1 induced by the pH change and transition from the β-sheet dominant to the helical ... interaction was shown to be mediated via PxxP motifs in the N-terminal of Wrch1 to the second and third SH3 domains of Nck2 Wrch1, which belongs to the Cdc42 subfamily, was one of the least characterised ... dynamics of folded and denatured states through measurements of 15 N NMR relaxation parameters The results showed that the levels of dynamics in the Fexch state of the domain were typical of those...

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Organic structures from 2d NMR spectra l d field, h l li and a m magill

Ngày tải lên : 02/12/2016, 12:53

... between the methylene and methyl protons (3JHH = Hz) Figure 2 -13 20 1H NMR spectrum of fluoroethane (300 MHz): 2JHF = 47 Hz, 3JHF = 25 Hz Each of the 1H resonances shows multiplicity due to 1H 1H coupling ... combination of H 1 H COSY and H 13 C me-HSQC spectra 40 3 .11 H 13 C HMBC spectrum of 1- bromo-2-chlorobenzene (400 MHz, CDCl3 ) 41 3 .12 H 13 C HSQC and HMBC spectra of iodobenzene (600 MHz, CDCl3 ... (MHz) at 9.395 T NMR Frequency (MHz) at 18 .79 T H 200.0 400.0 800.0 H 30.7 61. 4 12 2.8 10 B 21. 5 43.0 86.0 11 B 64.2 12 8.3 256.6 13 C 50.3 10 0.6 2 01. 1 14 N 14 .4 28.9 57.8 15 N 20.3 40.5 81. 0 17 ...

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Kiểm tra Anh 8 số 1(H)

Ngày tải lên : 07/07/2013, 01:28

... T or F _1 She used to live on a farm _ She had to help her teacher _ Nga used to look after her younger brothers and sisters _ Her Great-grandfather used to ... He / enough / old / driver car / He / see / himself / mirror / You / ought / study hard / ***the end*** Teacher: Tran Quang Hien English test ... farm When I was a young girl Nga: What was life like then? Grandma: I didn't go to school because I had to stay home and help my Mom I used to look after my younger brothers and sisters Nga: What...

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Estimation of emissions of nonmethane organic compounds from a closed landfill site using a landfill gas emission model

Ngày tải lên : 05/09/2013, 16:11

... denotes the rate of generation of methane for each submass of refuse in the landfill The higher the value of k, the faster methane generation rate increases and then decays over time The value of k ... 0. 21 year -1 [11 ] The value for the potential methane generation capacity of refuse, Lo, depends on the type of refuse present in the landfill For example, the higher the cellulose contents of the ... the stochastic behaviour of the model with respect to the parameters of the model” [11 ] In this paper, the concentration of NMOC, the average annual acceptance rate, and the age of the landfill...

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fr h 109 abstract of trim calculation

Ngày tải lên : 17/09/2013, 21:00

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kiem tra chương 1 h học 8 có ma trận

Ngày tải lên : 14/10/2013, 04:11

... 3 H nh thang có hai cạnh bên h nh thang cân Trong h nh chữ nhật , giao điểm hai đường chéo cách bốn đỉnh h nh chữ nhật Bài 2: a) Một h nh vuông có cạnh 4cm Đường chéo h nh vuông bằng: ... Đường chéo h nh vuông có cạnh 6cm Cạnh h nh vuông bằng: A/ 8cm B 18 cm C 4cm D 18 II/ TỰ LUẬN: Bài 1: Cho tam giác ABC vuông A có AB = 4cm, AC = 3cm a) Chứng minh AKNH h nh chữ nhật (2đ) b) Tính trung ... Từ (1) (2) => Tứ giác EKHA h nh bình h nh (0,5đ) d) (1 ) Chứng minh AE = AF (0,25đ) Chứng minh E, A, F thẳng h ng Suy E F đối xứng qua A III/ THỐNG KÊ: IV/ NHẬN XÉT ĐÁNH GIÁ (0,5đ) (0,25đ) ...

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Molecular Biology of Secondary Metabolism - Case Study for Glycyrrhiza Plants

Ngày tải lên : 25/10/2013, 05:20

... OH HO HO HO OH OH OH O OH HO HO OH OH O COOH COOH COOH O C O O O O CH2OH O O COOH O O HO CH2OH OH COOH O O CH2OH OH OH HO CH2OH CH2OH HO OH HO HO OH O HO O OH OH Fig 5.3 Structures of biotransformation ... COOH O OH COOH HO HO glycyrrhetinic acid HO CH2OH soyasapogenol B betulinic acid HO sitosterol COOH OH O COOH OO OH COOH OO OH HO COOH OO OH HO OH glycyrrhizin HO R OO HO OH HO CH2OH R=CH2OH R =H ... OH OH O C COOH HOOC O O O COOH O O COOH O O OH HO COOH O O OH OH licorice-saponin E2 HO COOH O O O COOH O O CH2OH licorice-saponin G2 OH HO COOH O O OH HO OH licorice-saponin H2 OH HO HO OH OH...

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