ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolution structure of the fifth repeat factor H: a second example complement control protein moduleP. N. Barlow, D. G. Norman, A. Steinkasserer, T. J. Horne, Pearce, P. C. Driscoll, R. B. Sim, and I. CampbellCite this: Biochemistry 1992, 31, 14, 3626–3634Publication Date (Print):April 1992Publication History Published online1 May 2002Published inissue 14 April 1992https://doi.org/10.1021/bi00129a011RIGHTS & PERMISSIONSArticle...

Abstract Performance-based research funding systems have been extensively used around the globe to allocate funds across higher education institutes (HEIs), which led an increased amount of literature examining their use. The UK’s Research Excellence Framework (REF) uses a peer-review process evaluate environment, outputs and non-academic impact produced by HEIs produce more accountable distribution public funds. However, carrying out such evaluation is costly. Given cost that it suggested...

Abstract The proton N.M.R. spectra of two partially deuteriated samples the mesogen 4-methoxy-4′-cyanobiphenyl (1-OCB) have been obtained. were simplified by decoupling interactions between protons and deuterons analysed to yield sets dipolar couplings, [Dtilde]ij . are used investigate angle φ ring normals conformation methoxy group relative attached phenyl ring. If potential governing rotation, V(φ), is assumed a deep minimum such that only structures with value appreciably populated, then...

Catalytic chain transfer copolymerisation of MMA and HEMA (70:30) has been carried out under semi-continuous emulsion polymerisation conditions, using CoBF as catalyst. It shown that macromonomers low molar mass can be synthesised with an apparent constant, CSE, ca. 1300 down to a threshold value 20 ppm CoBF. Below this initial 20% shot monomer/catalyst mixture was necessary prevent events involved in the catalytic process becoming diffusion controlled reaction proceed monomer starved...

Abstract The two principal orientational order parameters of anthracene and anthraquinone as solutes in several liquid crystal solvents have been obtained via deuterium NMR spectra. ordering is much more solvent dependent than that anthracene, possible explanations this behaviour are examined. In particular, the possibility electrostatic well dispersive repulsion forces could contribute to a mean field potential explored. It concluded most probable cause large differences these molecules...

The structure of 4-cyanobiphenyl when dissolved in nematic liquid-crystalline solvents has been investigated. This achieved by recording and analysing the proton deuterium NMR spectra samples solvents. dipolar couplings obtained are compared with values calculated averaging over bond rotational motion, conclusion is reached that minimum-energy an angle between two ring normals 37.0 ± 0.1° each three solvents, a value for biphenyl, previously same method, 37.4 0.2°.

The proton and fluorine n.m.r. spectra of samples 4-fluoro- 4-iodo-α,α,α-trifIuoromethoxybenzene dissolved in the nematic liquid crystal solvent 135 have been obtained. Analysis these yields a set dipolar coupling constants whose values are used to investigate form V(φ), potential governing rotation about phenyl O-bond. V(φ) is found be very different from for corresponding methoxybenzene that minimum occurs when O–CF3 bond plane orthogonal ring (φ= 90°). data cannot, however, distinguish...

Many of the perturbations that lead to t1 noise in 2D NMR spectroscopy cause fluctuations relative phases pulses and coherences. Because sensitivity phase a coherence changes pulse depends on change order, P-type signals homonuclear correlation experiments are insensitive errors mixing pulse, hence they show less than N-type signals. This effect is illustrated for gradient COSY experiment. © 1997 John Wiley & Sons, Ltd.

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTConformation of the ethoxy group in 4-ethoxy-4'-cyanobiphenylJ. W. Emsley, T. J. Horne, G. Celebre, M. Longeri, and H. ZimmermannCite this: Phys. Chem. 1992, 96, 20, 7929–7934Publication Date (Print):October 1, 1992Publication History Published online1 May 2002Published inissue 1 October 1992https://pubs.acs.org/doi/10.1021/j100199a021https://doi.org/10.1021/j100199a021research-articleACS PublicationsRequest reuse permissionsArticle...

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 100 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”

The proton, proton–{deuterium} and deuterium NMR spectra of partially deuteriated samples 1,2,3-trimethoxybenzene dissolved in a nematic liquid crystalline solvent, I32, have been recorded analysed to yield set dipolar couplings which used test models for the conformational distribution. It is shown that molecule must exist more than one conformation. A distribution has obtained agreement with data, based on assumption each methoxy group can occupy positions either orthogonal to, or coplanar...

Abstract We have determined the structure in solution of a homodimeric protein that is precursor to locust neuropeptide adipokinetic hormone I using nuclear magnetic resonance spectroscopy. This precursor, called P1, comprised two 41 residue strands joined by single inter‐chain disulphide at Cys39. also an end product P1 processing, APRP1; this homodimer residues 14–41 PI. Nuclear Overhauser Effect (nOe) data indicate both and APRP1, 22–37 (numbered with respect P1) form pairs α‐helices, no...

The 1H NMR spectrum of a sample 1,2-dimethoxybenzene dissolved in nematic solvent (I35) has been analysed to yield set partially-averaged dipolar couplings, Dij. These are used test models for the conformations adopted two OCH3 groups relative ring. It is concluded that single conformation, or symmetry-related not consistent with data. couplings derive distribution among 16 minimum energy structures which possible if it assumed C–O–C planes can only be either coplanar with, perpendicular to,...