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85 results on '"Crystals -- Physiological aspects"'

51. Lowering melting points in asymmetrically substituted Salen-copper(II) complexes exhibiting mesomorphic behavior. Structure of the mesogen Cu(5-hexyloxySalen)

Author

Paschke, Reinhard, Balkow, Dorte, and Sinn, E.

Subjects
Chemistry, Inorganic -- Research, Melting points -- Physiological aspects, Copper -- Physiological aspects, Coordination compounds -- Physiological aspects, Crystals -- Physiological aspects, Chemistry
Abstract

Research has been conducted on the asymmetrically substituted Salen-copper(II) complexes which demonstrate mesophases under lowered melting point conditions. The crystal structure of these complexes and the ways to decrease the melting temperatures via asymmetric and lateral substitution have been investigated and are described.

Published
2002

52. Basic reaction steps in the sulfidation of crystalline tungsten oxides

Author

Vlies, A. J. van der, Kishan, G., Niemantsverdriet, J. W., Prins, R., and Weber, Th.

Subjects
Chemistry, Physical and theoretical -- Research, Chemical reactions -- Analysis, Oxides -- Physiological aspects, Tungsten -- Physiological aspects, Crystals -- Physiological aspects, Sulfidation -- Physiological aspects, Chemicals, plastics and rubber industries
Published
2002

54. Engineering reactions in crystalline solids: photochemical generation of secondary and tertiary enol radical pairs from crystalline ketodiesters

Author

Yang, Zhe, Ng, Danny, and Garcia-Garibay, Miguel A.

Subjects
Chemistry, Organic -- Research, Solids -- Physiological aspects, Crystals -- Physiological aspects, Radicals (Chemistry) -- Physiological aspects, Photochemistry -- Analysis, Solution (Chemistry) -- Physiological aspects, Biological sciences, Chemistry
Abstract

Research has been conducted on the photochemical decarbonylation of crystalline 1,3-acetonedicarboxylates. The analysis of this decarbonylation has been carried out both in soution and in a solid state and the results indicate that the solid-state reaction depends on intermediate acyl-alkyl and alkyl-alkyl radical pairs stability.

Published
2001

55. Three-dimensional structures of the free and antigen-bound fab from monoclonal antilysozyme antibody HyHEL-63

Author

Li, Yili, Li, Hongmin, Smith-Gill, J., and Mariuzza, Roy A.

Subjects
Immune complexes -- Physiological aspects, Lysozyme -- Physiological aspects, Structure-activity relationships (Biochemistry) -- Physiological aspects, Antibodies -- Physiological aspects, Crystals -- Physiological aspects, Biological sciences, Chemistry
Abstract

Bacterial expression, crystallization, and cloning of the antigen-binding fragment (Fab) of the anti-hen egg white lysozyme (HEL) antibody, HyHEL-63 have been carried out. The crystal structures of free and HEL-bound HyHEL-63 have been high-resolution determined. The contacting surface of the antibody in the complex is in the main hydrophobic. Hydrophilic residues are dominant on the HEL side of the interface. The structures show complementarity between the interacting surfaces enhanced by small, yet significant, movement in polypeptide backbones of the antigen and the antibody. They also show it by rearrangement of interface side chains. A number of interface water molecules, several entirely buried in the complex, also enhance complementarity.

Published
2000

56. Biomineralization of ferrimagnetic greigite (Fe3S4) and iron pyrite (FeS2) in a magnetotactic bacterium

Author

Mann, Stephen, Sparks, Nicholas H.C., Frankel, Richard B., Bazylinski, Dennis A., and Jannasch, Holger W.

Subjects
Crystals -- Physiological aspects, Biomagnetism -- Research, Geomagnetism -- Research, Magnetite -- Physiological aspects, Magnetization, Biomineralization -- Physiological aspects, Bacteria -- Physiological aspects, Environmental issues, Science and technology, Zoology and wildlife conservation, University of Bath -- Research, Woods Hole Oceanographic Institution -- Research, California Polytechnic State University, San Luis Obispo -- Research
Published
1990

57. Gout and other crystal arthropathies

Author

McGill, Neil W.

Subjects
Uricosuric agents -- Health aspects, Joint diseases -- Care and treatment, Gout -- Care and treatment, Crystals -- Physiological aspects, Health
Abstract

Treatment of gout, the most common inflammatory arthropathy in men over age 40, and other crystal arthropathies is discussed with the information that effective drugs for both treatment and prevention are available. Pathogenesis, the inflammatory response, and various clinical features, associations and complications are covered.

Published
1997

58. X-ray crystal structure of (eta (super)5 -pentaphenylcyclopentadienyl){1-(eta (super)5/6 -phenyl)-2,3,4,5-tetraphenylcyclopentadienyl}iron(II), [Fe(eta (super)5 -C (sub)5 Ph (sub)5){(eta (super)5/6 -C (sub)6 H (sub)5)C (sub)5 Ph (sub)4}], a linkage isomer of decaphenylferrocene

Author

Field, Leslie D., Hambley, Trevor W., Humphrey, Paul A., Masters, Anthony F., and Turner, Peter

Subjects
Chemistry, Inorganic -- Research, Crystals -- Physiological aspects, Cyclic compounds -- Physiological aspects, Isomerization -- Physiological aspects, Acetates -- Physiological aspects, Carbon -- Physiological aspects, Hydrogen -- Physiological aspects, Iron -- Physiological aspects, Diffraction -- Physiological aspects, Chemistry
Abstract

Research has been conducted on the dark blue prosmatic crystals of the decaphenylferrocene linkage isomer. These crystals have been grown from hexane/ethyl acetate and characterized via the use of the single-crystal X-ray diffraction.

Published
2002

59. Single crystal structure determination of a new zirconium N-ethylpyridinium phosphonate: Zr(O (sub)3 PCH (sub)2 CH (sub)2 NC (sub)5 H (sub)5)(F (super)-) (sub)3

Author

Vermeulen, Lori A., Fateen, Rasheta Z., and Robinson, Paul D.

Subjects
Chemistry, Inorganic -- Research, Crystals -- Physiological aspects, Zirconium -- Physiological aspects, Phosphonates -- Physiological aspects, Ethylene -- Physiological aspects, Oxygen -- Physiological aspects, Nitrogen -- Physiological aspects, Chemistry
Abstract

Research has been conducted on the zirconium N-ethylpyridinium phosphonate structure. The use of the single-crystal X-ray analysis in determining this structure is described.

Published
2002

60. Size range of solid-liquid interface energy of organic crystals

Author

Z. Wen, M. Zhao, and Q. Jiang

Subjects
Chemistry, Physical and theoretical -- Research, Crystals -- Physiological aspects, Solid state chemistry -- Physiological aspects, Liquids -- Physiological aspects, Molecules -- Physiological aspects, Chemicals, plastics and rubber industries
Published
2002

61. Crystal structure of the SarR protein from Staphylococcus aureus

Author

Liu, Yingfang, Manna, Adhar, Li, Ronggui, Martin, Wesley E., Murphy, Robert C., Cheung, Ambrose L., and Zhang, Gongyi

Subjects
Crystals -- Physiological aspects, Staphylococcus aureus -- Physiological aspects, Virulence (Microbiology) -- Physiological aspects, Science and technology
Abstract

The expression of virulence determinants in Staphylococcus aureus is controlled by global regulatory loci (e.g., sarA and agr). The sar (Staphylococcus accessory regulator) locus is composed of three overlapping transcripts (sarA P1, P3, and P2, transcripts initiated from the P1, P3, and P2 promoters, respectively), all encoding the 124-aa SarA protein. The level of SarA, the major regulatory protein, is partially controlled by the differential activation of the sarA promoters. We previously partially purified a 13.6-kDa protein, designated SarR, that binds to the sarA promoter region to down-modulate sarA transcription from the P1 promoter and subsequently SarA expression. SarR shares sequence similarity to SarA, and another SarA homolog, SarS. Here we report the 2.3 [Angstrom]-resolution x-ray crystal structure of the dimeric SarR-MBP (maltose binding protein) fusion protein. The structure reveals that the SarR protein not only has a classic helix-turn-helix module for DNA binding at the major grooves, but also has an additional loop region involved in DNA recognition at the minor grooves. This interaction mode could represent a new functional class of the 'winged helix' family. The dimeric SarR structure could accommodate an unusually long stretch of [approximately equals] 27 nucleotides with two or four bending points along the course, which could lead to the bending of DNA by 90 [degrees] or more, similar to that seen in the catabolite activator protein (CAP)-DNA complex. The structure also demonstrates the molecular basis for the stable dimerization of the SarR monomers and possible motifs for interaction with other proteins.

Published
2001

62. New proteomics research from University of Marburg outlined

Subjects
Health -- Physiological aspects, Health -- Research, Proteomics -- Physiological aspects, Proteomics -- Research, Universities and colleges -- Physiological aspects, Universities and colleges -- Research, Crystals -- Structure, Crystals -- Physiological aspects, Crystals -- Research
Abstract

"Nonribosomal peptide synthetases ( NRPSs) are modular multidomain enzymes that act as an assembly line to catalyze the biosynthesis of complex natural products. The crystal structure of the 144- kilodalton [...]

Published
2008

63. CRYSTALS CLEAR FOR U.S. LAUNCH

Author

Naughton, Julie

Subjects
Toiletries industry -- Product information, Toiletries industry -- Planning, Crystals -- Physiological aspects, Company business planning, Company product planning, Business, Fashion, accessories and textiles industries, Retail industry
Abstract

You could say that crystals brought Mary Vango and Azzi Glasser together. The two women, who share director duties for the London-based Inner Nutritional Alchemy Crystals Ltd., met at a [...]

Published
2007

64. Enzyme structure shows how it functions

Subjects
Enzymes -- Physiological aspects, Crystals -- Structure, Crystals -- Physiological aspects, Biotechnology industry, Business, University of Iowa
Abstract

Naphthalene dioxygenase, a bacterial enzyme that is a member of the Rieske dioxygenase enzyme family, has potential for use in a variety of syntheses. It is involved in biosynthesis of [...]

Published
2003

65. Crystallographic characterization of the structure of the endohedral fullerene {Er (sub)2 @C (sub)82 isomer} with C (sub)s cage symmetry and multiple sites for erbium along a band of ten contiguous hexagons

Author

Olmstead, Marilyn M., De Bettencourt-Dias, Ana, Stevenson, S., Dorn, Harry C., and Balch, Alan L.

Subjects
Chemical research -- Analysis, Crystals -- Physiological aspects, Carbon allotropes -- Physiological aspects, Carbon -- Physiological aspects, Erbium -- Physiological aspects, Isomerization -- Physiological aspects, Chemistry
Abstract

Research has been conducted on the {Er (sub)2 @C (sub)82} isomer. The role of this isomer in the metal atom positioning with the crowded environments has been investigated and the details are discussed.

Published
2002

66. Tyrosine-rich crystalloids in vocal cord mucosa

Author

Maurice, Y.M., Sheard, J.D., and Helliwell, T.R.

Subjects
Tyrosine -- Physiological aspects, Tyrosine -- Identification and classification, Vocal cords -- Physiological aspects, Crystals -- Structure, Crystals -- Identification and classification, Crystals -- Physiological aspects, Health
Published
2009

67. Identification of pathological mineral deposits by Raman microscopy

Author

McGill, N., Dieppe, P.A., Bowden, M., Gardiner, D.J., and Hall, M.

Subjects
Synovial membranes -- Medical examination, Crystals -- Physiological aspects, Synovial fluid -- Medical examination, Minerals -- Physiological aspects, Raman effect
Published
1991

68. Supreme quartz

Author

Page, Jake

Subjects
Quartz crystals -- Marketing, Crystals -- Physiological aspects, New Age movement -- Analysis, Healing -- Equipment and supplies
Published
1987

70. Data from AstraZeneca advance knowledge in metabolism

Subjects
Crystals -- Structure, Crystals -- Physiological aspects, Cytochrome P-450 -- Physiological aspects, Pharmaceutical industry -- Physiological aspects, Biotechnology industry, Pharmaceuticals and cosmetics industries
Abstract

According to recent research from Sweden, 'The major oxidative metabolic degradation of drugs occurs through cytochrome P450 enzymes, which has very wide substrate specificity. Therefore it is crucial to be [...]

Published
2009

71. Researchers from University of Texas, Department of Physiology publish new studies and findings in the area of life sciences

Subjects
Drugs -- Research, Drugs -- Physiological aspects, Universities and colleges -- Physiological aspects, Crystals -- Structure, Crystals -- Physiological aspects, Biotechnology industry, Pharmaceuticals and cosmetics industries
Abstract

New research, 'High-resolution structure of the open NaK channel,' is the subject of a report. According to recent research published in the journal Nature Structural and Molecular Biology, 'We report [...]

Published
2009

72. Research results from University of Copenhagen update understanding of enzyme research

Subjects
Tryptophan -- Research, Tryptophan -- Physiological aspects, Universities and colleges -- Physiological aspects, Crystals -- Structure, Crystals -- Physiological aspects, Biotechnology industry, Pharmaceuticals and cosmetics industries, University of Copenhagen
Abstract

According to recent research published in the journal Biochemistry, 'Tryptophan hydroxylase (TPH) is a mononuclear non-heme iron enzyme, which catalyzes the reaction between tryptophan, O-2, and tetrahydrobiopterin (BH4) to produce [...]

Published
2009

73. Data from W. Chen and colleagues advance knowledge in life sciences

Subjects
Biological response modifiers -- Physiological aspects, Interferon -- Physiological aspects, Crystals -- Structure, Crystals -- Physiological aspects, Biotechnology industry, Pharmaceuticals and cosmetics industries
Abstract

Data detailed in 'Insights into interferon regulatory factor activation from the crystal structure of dimeric IRF5' have been presented. 'Interferon regulatory factors (IRFs) are essential in the innate immune response [...]

Published
2008

74. Research in the area of enzyme research reported from L. Shi and colleagues

Subjects
Enzymes -- Physiological aspects, Enzymes -- Research, Crystals -- Structure, Crystals -- Physiological aspects, Crystals -- Research, Biotechnology industry, Pharmaceuticals and cosmetics industries
Abstract

'Glycerophosphodiester phosphodiesterase (GDPD; EC 3.1.4.46) catalyzes the hydrolysis of a glycerophosphodiester to an alcohol and glycerol 3-phosphate in glycerol metabolism. It has an important role in the synthesis of a [...]

Published
2008

75. Reports from Fourth Military Medical University, Research Center highlight recent research in life sciences

Subjects
Biochemistry -- Physiological aspects, Crystals -- Structure, Crystals -- Physiological aspects, Universities and colleges -- Physiological aspects, Liver cancer -- Physiological aspects
Abstract

Scientists discuss in 'Crystal structure of HAb18G/CD147: implications for immunoglobulin superfamily homophilic adhesion' new findings in life sciences. According to recent research from People's Republic of China, "CD147, a member [...]

Published
2008

76. Researchers from RIKEN report recent findings in life sciences

Subjects
Tryptophan -- Research, Tryptophan -- Reports, Tryptophan -- Physiological aspects, Biochemistry -- Reports, Biochemistry -- Physiological aspects, Crystals -- Structure, Crystals -- Reports, Crystals -- Physiological aspects
Abstract

Fresh data on life sciences are presented in the report 'Crystal structure of VioE, a key player in the construction of the molecular skeleton of violacein.' According to recent research [...]

Published
2008

78. Studies from University of California, Department of Chemistry have provided new data on biochemistry

Subjects
Biochemistry -- Reports, Biochemistry -- Physiological aspects, Biochemistry -- Research, Universities and colleges -- Reports, Universities and colleges -- Physiological aspects, Universities and colleges -- Research, Crystals -- Structure, Crystals -- Reports, Crystals -- Physiological aspects, Crystals -- Research
Abstract

Scientists discuss in "Crystal structures of Pasteurella multocida sialyltransferase complexes with acceptor and donor analogues reveal substrate binding sites and catalytic mechanism" new findings in biochemistry. "Sialyltransferases are key enzymes [...]

Published
2007

79. Research findings from Scripps Research Institute, Department of Molecular Biology update understanding of biological chemistry

Subjects
Biochemistry -- Physiological aspects, Crystals -- Structure, Crystals -- Physiological aspects
Abstract

New investigation results, "Structure-based design, synthesis, evaluation, and crystal structures of transition state analogue inhibitors of inosine monophosphate cyclohydrolase," are detailed in a study published in Journal of Biological Chemistry. [...]

Published
2007

80. New findings from University of Pennsylvania, Department of Chemistry in the area of gene therapy published

Subjects
University of Pennsylvania, Genetic research -- Physiological aspects, Genetic research -- Genetic aspects, Universities and colleges -- Physiological aspects, Universities and colleges -- Genetic aspects, Universities and colleges -- Research, Gene therapy -- Physiological aspects, Gene therapy -- Genetic aspects, Gene therapy -- Research, Oxidoreductases -- Physiological aspects, Oxidoreductases -- Genetic aspects, Oxidoreductases -- Research, Crystals -- Structure, Crystals -- Physiological aspects, Crystals -- Genetic aspects, Crystals -- Research
Abstract

Current study results from the report, "Crystal structure of lactaldehyde dehydrogenase from Escherichia coli and inferences regarding substrate and cofactor specificity," have been published. "Aldehyde dehydrogenases catalyze the oxidation of [...]

Published
2007

81. Recent findings in biochemistry described by researchers from Philipps University

Subjects
Soil inoculation -- Reports, Soil inoculation -- Physiological aspects, Universities and colleges -- Reports, Universities and colleges -- Physiological aspects, Transfer RNA -- Reports, Transfer RNA -- Physiological aspects, S-adenosylmethionine -- Reports, S-adenosylmethionine -- Physiological aspects, Biochemistry -- Reports, Biochemistry -- Physiological aspects, Crystals -- Structure, Crystals -- Reports, Crystals -- Physiological aspects
Abstract

Data detailed in "Crystal structure of Bacillus subtilis S-adenosylmethionine:tRNA ribosyltransferase-isomerase" have been presented. "The enzyme S-adenosylmethionine:tRNA ribosyltransferase-isomerase (QueA) is involved in the biosynthesis of the hypermodified tRNA nucleoside queuosine. It [...]

Published
2007

82. Reports from University of Auckland, and Department of Chemistry highlight recent research in life sciences

Subjects
National Academy of Sciences -- Reports, University of Auckland -- Reports, Carbohydrate metabolism -- Reports, Carbohydrate metabolism -- Physiological aspects, Carbohydrate metabolism -- Research, Universities and colleges -- Reports, Universities and colleges -- Physiological aspects, Universities and colleges -- Research, Inositol -- Reports, Inositol -- Physiological aspects, Inositol -- Research, Crystals -- Structure, Crystals -- Reports, Crystals -- Physiological aspects, Crystals -- Research
Abstract

Investigators publish new data in the report "Crystal structure of a substrate complex of myo-inositol oxygenase, a di-iron oxygenase with a key role in inositol metabolism." According to recent research [...]

Published
2006

83. ADP-ribose and poly(ADP-ribose) binding by viral macro domains defined

Subjects
Virus diseases -- Physiological aspects, Crystals -- Structure, Crystals -- Physiological aspects
Abstract

A study from France has reported on the structural and functional basis for ADP-ribose and poly(ADP-ribose) binding by viral macro domains. "Macro domains constitute a protein module family found associated [...]

Published
2006

84. Structure conservation among cytochromes P450 compared

Subjects
Cytology -- Physiological aspects, Cytochrome P-450 -- Physiological aspects, Crystals -- Structure, Crystals -- Physiological aspects
Abstract

Comparing structure conservation among cytochromes P450 may help produce better drugs. According to J. Mestres and coworkers, University of Pompeu Fabra, "the recent availability of crystal structures for several diverse [...]

Published
2005

85. Alcaligenes xylosoxidans nitrate reductase mutants studied, insights gained

Subjects
De Montfort University, Nitrites -- Physiological aspects, Denitrification -- Physiological aspects, Crystals -- Structure, Crystals -- Physiological aspects
Abstract

Recently published research from England has reported on the crystal structures of nitrite reductase from two Alcaligenes xylosoxidans mutants. "Dissimilatory nitrite reductase catalyses the reduction of nitrite to nitric oxide [...]

Published
2005

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