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Conformation
Kinds of Conformation Terms modified by Conformation Selected AbstractsDevelopmental aspects of distal limb conformation in the horse: the potential consequences of uneven feet in foalsEQUINE VETERINARY JOURNAL, Issue 7 2006A. M. KROEKENSTOEL Summary Reasons for performing study: Distal limb conformation is generally accepted to be an important item with respect to performance and soundness in mature horses, but little is known about the developmental aspects. Objectives: To gain insight into the development of distal limb conformation and to assess the possible consequences of uneven feet in foals. Methods: Conformation of the distal front limbs of 23 Warmblood foals was scored visually and measured using radiographs, at ages 27 and 55 weeks. At the same ages, pressure measurements were made under both front feet. Results: At both ages the hoof-pastern axis was broken-backwards on radiographs, but only occasionally recognised as such, when scored by eye. Over time, the hoof angle decreased, while both the angles of the dorsal and solar surfaces of the distal phalanx (P3) increased and the parallelism between hoof wall and P3 improved. The foals with uneven feet at age 27 weeks showed a significant difference in distal limb loading that persisted until age 55 weeks. Conclusions: The alignment of the distal limb in the sagittal plane increased in a 6 month period. Visual assessment was not sensitive enough to appreciate this. The growth processes in the distal limb could not compensate for existing unevenness and ensuing asymmetrical limb loading. Potential relevance: Foals have a different conformation of the distal limb from mature horses, which should be taken into account when interpreting radiographs. Unevenness of the feet resulted in asymmetrical loading of the proximal and distal interphalangeal joint, which might lead to increased susceptibility to overload injuries and decreased performance at mature age. [source] Dinuclear Titanium(IV) Complexes Bearing Phenoxide-Tethered N-Heterocyclic Carbene Ligands with cisoid Conformation through Control of HydrolysisEUROPEAN JOURNAL OF INORGANIC CHEMISTRY, Issue 30 2007Dao Zhang Abstract In situ generated N-heterocyclic carbene salt derivative Na2(L) of 1,3-bis(4,6-di- tert -butyl-2-hydroxybenzyl)imidazolium bromide, [H3(L)]Br, reacted with 1 equiv. of TiBr4 at ,78 °C to give a titanium complex of the composition [(L)TiBr2(thf)] (1), while the reaction in a 2:1 ratio under the same conditions afforded bisligand titanium complex [(L)2Ti] (2). Two oxygen-bridged titanium dimers, {[(L)TiBr]2(,-O)} (4) and {[(L)Ti(,-O)]2} (5), were obtained by control of hydrolysis of 1 and [(L)Ti(CH2Ph)2] (3) in tetrahydrofuran and diethyl ether. The molecular structures of 2, 4, and 5 have been confirmed by X-ray single-crystal analysis. The phenoxide-functionalized NHC ligand adopts transoid conformation in mononuclear complex 2 but rare cisoid conformation in dinuclear complexes 4 and 5. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007) [source] Metal Ion Complementarity: Effect of Ring-Size Variation on the Conformation and Stability of Lead(II) and Cadmium(II) Complexes with Pendant-Armed CrownsEUROPEAN JOURNAL OF INORGANIC CHEMISTRY, Issue 15 2007Martín Regueiro-Figueroa Abstract The binding tendencies of the pendant-armed crown ethers L1,L3 [L1 = N,N, -bis(benzimidazol-2-ylmethyl)-1,7-diaza-12-crown-4, L2 = N,N, -bis(benzimidazol-2-ylmethyl)-1,10-diaza-15-crown-5) and L3 = N,N, -bis(benzimidazol-2-ylmethyl)-4,13-diaza-18-crown-6] towards PbII and CdII have been investigated. The X-ray crystal structure of [Cd(L3)](ClO4)2·EtOH shows that, in the solid state, the CdII ion is eight-coordinate and fits quite well into the crown hole, favouring an anti arrangement of the organic receptor. NMR measurements recorded in acetonitrile solution indicate that increasing the crown size induces a conformational change in the series of CdII complexes. The conformation goes from a syn arrangement for L1 to an anti arrangement for L3, passing through a syn [lrarr2] anti equilibrium in the complex derived from L2. On the contrary, no conformational change was observed for the corresponding PbII complexes, which have a syn conformation in all cases. These results have been confirmed by means of density functional theory (DFT) calculations performed by using the B3LYP model. The binding constants obtained from UV/Vis titration experiments in DMSO solution demonstrate that a decrease in the crown size provokes a 102 -fold enhancement of the stability for this series of CdII complexes, whereas for PbII a gradual decrease of the binding constants is observed. Receptor L1 shows a certain degree of selectivity for CdII over PbII, with a selectivity factor > 102. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007) [source] NMR Investigation of the Bound Conformation of Natural and Synthetic Oligomannosides to Banana LectinEUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 10 2007Caroline Clavel Abstract The conformational behaviour of three mannose-containing oligosaccharides, namely, the ,1,3[,1,6] trisaccharide, a heptasaccharide with ,1,2, ,1,3 and ,1,6 linkages and a tetrasaccharide consisting of ,1,3 and ,1,2 linkages, when bound to banana lectin (BanLec) has been evaluated by trNOE NMR methods and docking calculations. It was found that the molecular recognition event involves a conformational selection process with only one of the conformations present in the free state of the sugar being recognised at the lectin binding site. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007) [source] Archazolid-7- O -,- D -glucopyranoside , Isolation, Structural Elucidation and Solution Conformation of a Novel V-ATPase Inhibitor from the Myxobacterium Cystobacter violaceusEUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 7 2007Dirk Menche Abstract The novel polyketide macrolide archazolid-7- O -,- D -glucopyranoside (3) has been isolated from the myxobacterium Cystobacter violaceus and the structure of this first archazolid-glycoside has been determined by spectroscopic and degradative methods. A synthesis of simplified 7- O analogues, based on regioselective derivatisation of archazolid A, was elaborated. These structurally novel archazolids of natural and synthetic origin were evaluated in detail for V-ATPase inhibition and their biological activities are discussed in terms of their solution conformations, as determined by high-field NMR studies, including J -based conformation analysis and constrained molecular dynamics simulations. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007) [source] Synthesis of "V-Shaped" syn -Bidentate Ligands Based on Mesitylene-Derived [1.1.1.1]Metacyclophane Blocked in a 1,3-Alternate ConformationEUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 2 2003Cédric Klein Abstract A series of five new syn -bidentate ligands 14,18 based on the [1.1.1.1]metacyclophane backbone blocked in a 1,3-alternate conformation was achieved. The common building block for the preparation of ligands bearing two interaction sites located in a syn fashion (CN, SMe, p -pyridyl, p -methoxyphenyl and p -methylthiophenyl) is the dibromo derivative 12. All reported ligands were fully characterised by classical analytical methods and their 1,3-alternate conformation demonstrated. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003) [source] Charge Transfer Excitons in Polymer/Fullerene Blends: The Role of Morphology and Polymer Chain ConformationADVANCED FUNCTIONAL MATERIALS, Issue 22 2009Markus Hallermann Abstract Here, it is shown how carrier recombination through charge transfer excitons between conjugated polymers and fullerene molecules is mainly controlled by the intrachain conformation of the polymer, and to a limited extent by the mesoscopic morphology of the blend. This experimental result is obtained by combining near-infrared photoluminescence spectroscopy and transmission electron microscopy, which are sensitive to charge transfer exciton emission and morphology, respectively. The photoluminescence intensity of the charge transfer exciton is correlated to the degree of intrachain order of the polymer, highlighting an important aspect for understanding and limiting carrier recombination in organic photovoltaics. [source] Effect of Through-Bond Interaction on Conformation and Structure in Rod-Shaped Donor,Acceptor Systems.HELVETICA CHIMICA ACTA, Issue 3 2003Part The crystal structures of five N -arylpiperidin-4-one derivatives 2P2, 3P2, 5P2, 1P3, and 2P3 are presented (Fig.,2 and Tables,1,5) and discussed together with the derivatives 1P2 and 4P2 published previously. In all but one structure, 1P2, the aryl group is in an equatorial position. The piperidine ring adopts a normal chair conformation. In 1P2, the piperidine ring central CC bonds are significantly elongated, which is consistent with the idea that through-bond interaction is more pronounced in the axial conformation. Through-bond interaction also influences the pyramidalization at the piperidine C(4)-atom in such a way that a strong interaction is directing the ethylene C-atom C(9) into the axial direction. [source] Probing the Local Conformation within ,-Conjugated One-dimensional Supramolecular Stacks using Frequency Modulation Atomic Force MicroscopyADVANCED MATERIALS, Issue 41 2009Benjamin Grévin Frequency-modulation atomic force microscopy is used to investigate the local conformation within 1D stacks obtained by the self-assembly of ,-conjugated molecules from solution. The structural parameters extracted from the experimental data can be interpreted in terms of local molecular conformation, by comparison with models obtained by molecular mechanics and dynamics simulations. [source] Purification and characterization of ,-glucosidase in Apis cerana indicaINSECT SCIENCE, Issue 3 2008Chanpen Chanchao Abstract Apis cerana indica foragers were used for the isolation of a full-length ,-glucosidase cDNA, and for purification of the active nascent protein by low salt extraction of bee homogenates, ammonium sulphate precipitation and diethylaminoethyl-cellulose and Superdex 200 chromatographies. The molecular mass of the purified protein was estimated by polyacrylamide gel electrophoresis resolution, and the pH, temperature, incubation, and substrate optima for enzymic activity were determined. Conformation of the purified enzyme as ,-glucosidase was performed by BLAST software homology comparisons between matrix assisted laser desorption ionization time of flight mass spectroscopy analysed partial tryptic peptide digests of the purified protein with the predicted amino acid sequences deduced from the ,-glucosidase cDNA sequence. [source] Conformation of N-terminal HIV-1 tat (fragment 1,9) peptide by NMR and MD simulationsJOURNAL OF PEPTIDE SCIENCE, Issue 11 2001Meena Kanyalkar Abstract The N -terminal portion of HIV-1 Tat covering residues 1,9 is a competitive inhibitor of dipeptidyl peptidase IV (DP IV). We have used 1H NMR techniques, coupled with molecular dynamics methods, to determine the conformation of this peptide in the three diverse media: DMSO-d6, water (pH 2.7) and 40% HFA solution. The results indicate that in both DMSO-d6 and HFA the peptide has a tendency to acquire a type I ,-turn around the segment Asp5 -Pro6 -Asn7 -Ile8. The N -terminal end is seen to be as a random coil. In water, the structure is best described as a left-handed polyproline type II (PPII) helix for the mid segment region Asp2 to Pro6. The structures obtained in this study have been compared with an earlier report on Tat (1,9). Copyright © 2000 European Peptide Society and John Wiley & Sons, Ltd. [source] Randomization of Amyloid-,-Peptide(1-42) Conformation by Sulfonated and Sulfated Nanoparticles Reduces Aggregation and CytotoxicityMACROMOLECULAR BIOSCIENCE, Issue 10 2010Ana M. Saraiva Abstract The amyloid-, peptide (A,) plays a central role in the mechanism of Alzheimer's disease, being the main constituent of the plaque deposits found in AD brains. A, amyloid formation and deposition are due to a conformational switching to a ,-enriched secondary structure. Our strategy to inhibit A, aggregation involves the re-conversion of A, conformation by adsorption to nanoparticles. NPs were synthesized by sulfonation and sulfation of polystyrene, leading to microgels and latexes. Both polymeric nanostructures affect the conformation of A, inducing an unordered state. Oligomerization was delayed and cytotoxicity reduced. The proper balance between hydrophilic moieties and hydrophobic chains seems to be an essential feature of effective NPs. [source] Conformation and Anatomical Relations of the Liver of Llama (Lama glama)ANATOMIA, HISTOLOGIA, EMBRYOLOGIA, Issue 2 2009A. N. C. Castro Summary Morphological studies of the liver of the llama are structural supportive to the clinical practice, surgery and specific diagnostic techniques. The aims of this study were first to determine the location of the organ and the direction of its major axis to project it to the abdominal wall, identifying visible and palpable bony references. Secondly, to characterize and determine anatomical relations of the surfaces, borders and angles of the llama liver, as well as, of its lobulation. Twenty adult llamas of both sexes and two foetuses of 6.5- and 7-month-old were used. Llama liver is a post-diaphragmatic organ located in the cranial abdominal region, in the right hypochondrium, in relationship with the last six ribs. Dorsally, it can exceeds the last (twelfth) rib. Its major axis presents a cranio-ventral bent. Its shape is irregularly triangular. It presents two surfaces (parietal and visceral), three borders (cranial, caudal and ventral) and three angles (dorsal, cranial and caudal). [source] Conformation of the Equine Skull: A Morphometric StudyANATOMIA, HISTOLOGIA, EMBRYOLOGIA, Issue 4 2006K. E. Evans Summary There is a lack of an established method for quantifying equine skull morphology. This study proposes a method that is valid for use on both live and deceased horses. A total of nine head measurements (skull length, cranial length, nasal length, ratio of cranial:nasal length, cranial width, zygomatic width, mandibular depth, nasal profile area, cranial profile area) and six indices (skull index, cranial index, nasal index, mandibular index, nasal profile index, cranial profile index) were recorded from 30 horses from a variety of breeds whilst the soft tissues of the head were intact. A line was drawn level with the palpable notches caudal to the caudal lacrimal process of each orbit to estimate the suture line of the nasal and frontal bones and distinguish between the neurocranium and splanchnocranium. There were positive correlations between many of the head measurements. This method also illustrated significant differences in the skull morphology of three breeds (Arabians, thoroughbreds and standardbreds). [source] A Water Soluble Donor,Acceptor [2]Catenane that Can Switch between a Coplanar and a Gemini-Sign Conformation,ANGEWANDTE CHEMIE, Issue 31 2010Yu Au-Yeung Im Zeichen des Zwillings: Ein Donor-Akzeptor-[2]Catenan mit schaltbarer Konformation wurde aus einer dynamischen kombinatorischen Bibliothek erhalten. In einer der Konformationen wurde eine neuartige Anordnung der ,-Einheiten beobachtet, die an das astrologische Zeichen für Zwillinge erinnert (rechts). Das Catenan kann durch thermische und chemische Stimuli oder durch Änderung der Hydrophobie seiner Umgebung zwischen der parallelen und der nichtparallelen Konformation geschaltet werden. [source] Control of the Helicity of Poly(phenylacetylene)s: From the Conformation of the Pendant to the Chirality of the Backbone,ANGEWANDTE CHEMIE, Issue 8 2010Iria Louzao Dr. Auswahl der Gangrichtung: Das Konformerengleichgewicht der Substituenten eines Poly(phenylacetylens), und mit diesem die Helizität des Polymers, lässt sich reversibel verändern. Durch Komplexierung mit Metallkationen wie Ba2+ oder einen Wechsel in der Lösungsmittelpolarität kann die gewünschte Gangrichtung ausgewählt werden. Die mechanistische Grundlage dieses Phänomens wird im Detail erklärt. [source] The X-ray structure of a recombinant major urinary protein at 1.75,Å resolution.ACTA CRYSTALLOGRAPHICA SECTION D, Issue 12 2001A comparative study of X-ray, NMR-derived structures Major urinary proteins belong to the lipocalin family and are present in the urine of rodents as an ensemble of isoforms with pheromonal activity. The crystal structure of a recombinant mouse MUP (rMUP) was solved by the molecular-replacement technique and refined to an R factor and Rfree of 20 and 26.5%, respectively, at 1.75,Å resolution. The structure was compared with an NMR model and with a crystallographic structure of the wild-type form of the protein. The crystal structures determined in different space groups present significantly smaller conformational differences amongst themselves than in comparison with NMR models. Some, but not all, of the conformational differences between the crystal and solution structures can be explained by the influence of crystallographic contacts. Most of the differences between the NMR and X-ray structures were found in the N-terminus and loop regions. A number of side chains lining the hydrophobic pocket of the molecule are more tightly packed in the NMR structure than in the crystallographic model. Surprisingly, clear and continuous electron density for a ligand was observed inside the hydrophobic pocket of this recombinant protein. Conformation of the ligand modelled inside the density is coherent with the results of recent NMR experiments. [source] Conformation of , zeins in solid state by Fourier transform IRBIOPOLYMERS, Issue 6 2003Lucimara A. Forato Abstract The major maize storage proteins (, zeins) are deposited as an insoluble mass in the protein bodies of the endosperm. Because they are insoluble in water, most structural studies are performed in alcohol solutions. To solve the question raised by several authors about denaturation of the , zein structure by alcohol, we analyze the secondary structure of , zeins prepared with and without solubilization in alcohol (corn gluten meal and protein bodies with high concentrations of , zeins and traces of , zeins). The secondary structures of , zeins are analyzed in the solid state by Fourier transform IR spectroscopy (FTIR) in KBr pellets and solid-state 13C-NMR spectroscopy. The proportion of secondary structures obtained by FTIR of , zeins prepared with and without solubilization in alcohol yield almost identical proportions of , helices and , sheets. The proportion of , helices (43%) agrees with that measured by circular dichroism in an alcohol solution. However, the proportion of , sheets (28%) is higher than the one measured by the same technique. Gluten and protein body samples with high , zein content showed higher , sheet and lower , helix proportions than that obtained for , zein preparations. The solid-state 13C-NMR spectra show the carbonyl peak for the , zeins at , 176 and for the sample rich in , zeins at , 172, which demonstrates the presence of a high content of , helices and , sheets, respectively. These results indicate that alcohol solubilization does not affect the conformation of , zeins, validating the secondary structure measurements in solution. © 2003 Wiley Periodicals, Inc. Biopolymers (Biospectroscopy), 2003 [source] Kinetic Measurements of Protein Conformation in a MicrochipBIOTECHNOLOGY PROGRESS, Issue 5 2006Matthew B. Kerby This paper presents a microchip-based system for collecting kinetic time-based information on protein refolding and unfolding. Dynamic protein conformational change pathways were studied in microchannel flow using a microfluidic device. We present a protein-conserving approach for quantifying refolding by dynamically varying the concentration of the chemical denaturants, guanidine hydrochloride and urea. Short diffusion distances in the microchannel result in rapid equilibrium between protein and titrating solutions. Dilutions on the chip were tightly regulated using pressure controls rather than syringe-based flow, as verified with extensive on-chip tracer dye controls. To validate this protein assay method, folding transition experiments were performed using two well-characterized proteins, human serum albumin (HSA) and bovine carbonic anhydrase (BCA). Transition events were monitored through fluorescence intensity shifts of the protein dye 8-anilino-1-naphthalenesulfonic acid (ANS) during dilutions of protein from urea or guanidine hydrochloride solutions. The enzymatic activity of refolded BCA was measured by UV absorption through the conversion of p -nitrophenyl acetate (p-NPA). The microchip protein refolding transitions using ANS were well-correlated with conventional plate-based experiments. The microfluidic platform enables refolding studies to identify rapidly the optimal folding strategy for a protein using small quantities of material. [source] Leucine Side-Chain Conformation and Dynamics in Proteins from 13C NMR Chemical ShiftsCHEMBIOCHEM, Issue 9 2009Frans A. A. Mulder Dr. Abstract Look to the left: The carbon nucleus of a substituent in the gauche position about a subtending dihedral angle experiences an NMR chemical shift of about 5 ppm relative to the same chemical group present in the trans position. We demonstrate that this ",-gauche effect" can be utilized to determine the conformation and extent of rotameric averaging for leucine amino acid side chains in the protein calbindin D9k. The success of this approach suggests that rules can be established to define the orientation of other side chains in proteins as well, offering an easy gauge of protein side-chain flexibility, as well as avenues to advance protein structure determination by using side-chain chemical shifts. [source] Consistent Bioactive Conformation of the Neu5Ac,(2,3)Gal Epitope Upon Lectin BindingCHEMBIOCHEM, Issue 18 2008Anirban Bhunia Dr. Get to NOE MAG: Partial structures of GQ1b,, the natural ligand of the myelin-associated glycoprotein (MAG), have been synthesized and subjected to NOE experiments to determine their bioactive conformations. The experiments show that the flexible ,(2,3)-glycosidic linkage between N -acetylneuraminic acid and galactose present in all ligands adopts a "sialyl Lewisx -type" binding mode. This information is valuable for the future design of conformationally preorganized MAG inhibitors. [source] Endosialidase NF Appears To Bind PolySia DP5 in a Helical ConformationCHEMBIOCHEM, Issue 12 2006Thomas Haselhorst Dr. Phages infecting the polySia-encapsulated human pathogenE. coli K1 are equipped with capsule-degrading tail spikes known as endosialidases, which are the only identified enzymes that specifically degrade polySia. The X-ray crystallographic structure of endosialidase has been reported but it remains unclear how polySia interacts with the active site. Here we report STD and trNOE NMR experiments that investigate the binding mode of polySia DP5 at a molecular level. [source] Conformation and lytic activity of eumenine mastoparan: a new antimicrobial peptide from wasp venomCHEMICAL BIOLOGY & DRUG DESIGN, Issue 3 2004M.P. Dos Santos Cabrera Abstract:, Eumenine mastoparan-AF (EMP-AF) is a novel membrane active tetradecapeptide recently isolated from the venom of solitary wasp, Anterhynchium flavomarginatum micado. It was reported previously that EMP-AF peptide presented low cytolytic activities in human erythrocytes and in RBL-2H3 mast cells. In the present work, we observed that this peptide is able to permeate anionic liposomes, and in less extension also the neutral ones. We present evidences showing that the permeation ability is well correlated with the amount of helical conformation assumed by the peptides in these environments. This peptide also showed a broad-spectrum inhibitory activity against Gram-positive and Gram-negative bacteria. The permeability of liposomes and the antibiotic effect showed a significant reduction when C-terminus was deamidated (in acidic form). The removal of the three first amino acid residues from the N-terminus rendered the peptide inactive both in liposomes and in bacteria. The results suggest that the mechanism of action involves a threshold in the accumulation of the peptide at level of cell membrane. [source] ChemInform Abstract: Conformational Behaviors of Tetra-O-methylsulfinylcalix[4]arenes , An Approach to Control the Conformation of Thiacalix[4]arenes by Oxidizing Sulfur Bridges.CHEMINFORM, Issue 5 2008Hiroshi Katagiri Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] First Synthesis of Group-14 Polyanions by Extraction of a Binary Alloy with dmf and a Novel Conformation of the (Ge9,Ge9)6- Dimer: Crystal Structures of [K6(Ge9,Ge9)](dmf)12, [Rb6(Ge9,Ge9)](dmf)12 and [K2.5Cs3.5(Ge9,Ge9)] (dmf)12.CHEMINFORM, Issue 47 2006Anke Nienhaus Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Creation of Concave-Shaped Conformation in Crystal Structures Using an Iminodicarbonyl Linker.CHEMINFORM, Issue 42 2005An Application to Solid-State Intramolecular [4 + 4] Photocycloaddition Reactions of 2-Pyridone Derivatives. No abstract is available for this article. [source] Gas-Phase Structure, Conformation, and Sulfur 2p Photoelectron Spectroscopy of Pentafluorosulfur Fluorosulfonate, SF5OSO2FCHEMINFORM, Issue 34 2004Christiane Leibold Abstract For Abstract see ChemInform Abstract in Full Text. [source] Isolation, Structural Elucidation, and Synthesis of RA-XVII, a Novel Bicyclic Hexapeptide from Rubia cordifolia, and the Effect of Side Chain at Residue 1 upon the Conformation and Cytotoxic Activity.CHEMINFORM, Issue 21 2004Yukio Hitotsuyanagi No abstract is available for this article. [source] ChemInform Abstract: Cyclic Dibenzoylhydrazines Reproducing the Conformation of Ecdysone Agonists, RH-5849.CHEMINFORM, Issue 20 2002Tetsuya Toya Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: A Dehydrogenated Cycloadduct of N-Phenylmaleimide and the Azomethine Ylide Derived from Ninhydrine and Phenylalanine: Structure and Conformation.CHEMINFORM, Issue 7 2002Lutz Preu Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. 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