Relevant bibliographies by topics / C2221 cell

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Academic literature on the topic 'C2221 cell'

Author: Grafiati
Published: 6 September 2023

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Journal articles on the topic "C2221 cell"

1

Choi, Hee-Lack, Naoya Enomoto, Nobuo Ishizawa, and Zenbe-e. Nakagawa. "X-ray diffraction data of Ti2O2(C2O4)(OH)2·H2O." Powder Diffraction 9, no. 3 (September 1994): 187–88. http://dx.doi.org/10.1017/s0885715600019199.

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X-ray powder diffraction data for Ti2O2(C2O4)(OH)2·H2O were obtained. The crystal system was determined to be orthorhombic with space group C2221. The unit cell parameters were refined to a = 1.0503(2) nm, b = 1.5509(3) nm, and c = 0.9700(1) nm.
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2

Saxena, Ajay, Anna Gries, Robert Schwarzenbacher, Gerhard M. Kostner, Peter Laggner, and Ruth Prassl. "Crystallization and preliminary X-ray crystallographic studies on apolipoprotein H (β2-glycoprotein-I) from human plasma." Acta Crystallographica Section D Biological Crystallography 54, no. 6 (November 1, 1998): 1450–52. http://dx.doi.org/10.1107/s0907444998004557.

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Apolipoprotein-H (Apo-H, Mw ≃ 50 kDa) is a carbohydrate-rich human-plasma protein which exists in blood serum in the free form as well as distributed between several classes of lipoproteins. Single crystals of apo-H have been obtained and crystallographic data sets have been collected. The crystals belong to the orthorhombic space group C2221, with cell dimensions a = 158.47, b = 169.25, c = 113.28 Å (at 100 K). The data indicate that the crystallographic asymmetric unit contains one tetramer of the protein.
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3

Huyton, Trevor, and David I. Roper. "Crystallization and preliminary X-ray characterization of VanA from Enterococcus faecium BM4147: towards the molecular basis of bacterial resistance to the glycopeptide antibiotic vancomycin." Acta Crystallographica Section D Biological Crystallography 55, no. 8 (August 1, 1999): 1481–83. http://dx.doi.org/10.1107/s0907444999007155.

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A recombinant form of Enterococcus facieum BM4147 D-alanine-D-lactate ligase (VanA) has been prepared and crystallized. VanA was found to crystallize only in the presence of a phosphinate inhibitor analogue of D-alanine-D-alanine. The crystals grow in 40–45% ammonium sulfate, 0.1 M 3-(N-morpholino)-propanesulfonic acid pH 6.0 and reach dimensions of 0.4 × 0.2 × 0.1 mm. The crystals diffract to at least 2.5 Å and are in the centred orthorhombic space group C2221, with unit-cell dimensions a = 123.2, b = 225.4, c = 72.4 Å.
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4

Matsumura, Hiroyoshi, Takahiro Nagata, Mika Terada, Shunsuke Shirakata, Tsuyoshi Inoue, Takeo Yoshinaga, Yoshihisa Ueno, Hidetoshi Saze, Katsura Izui, and Yasushi Kai. "Crystallization and preliminary X-ray diffraction studies of C4-form phosphoenolpyruvate carboxylase from maize." Acta Crystallographica Section D Biological Crystallography 55, no. 11 (November 1, 1999): 1937–38. http://dx.doi.org/10.1107/s0907444999010240.

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Phosphoenolpyruvate carboxylase is a key enzyme in the fixation of atmospheric CO2 in C4 and crassulacean acid metabolism (CAM) plants. The enzyme catalyzes the irreversible carboxylation of phosphoenolpyruvate to form oxaloacetate and inorganic phosphate, the first committed step in the fixation of external CO2 in these plants. The enzyme has been isolated from maize leaves and crystallized using the hanging-drop vapour-diffusion method with PEG 8000 as a precipitant at pH 7.5. The crystals belong to space group C2221, with unit-cell dimensions a = 160.2, b = 175.6, c = 255.5 Å, and diffract to 3.2 Å resolution.
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5

Fenske, Dieter, Kay Jansen, and Kurt Dehnicke. "Die Kristallstruktur von PPh4[MoOCl4(OCHNMe2)] / The Crystal Structure of PPh4[MoOCl4(OCHNMe2)]." Zeitschrift für Naturforschung B 41, no. 4 (April 1, 1986): 523–26. http://dx.doi.org/10.1515/znb-1986-0421.

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Green crystals of the title compound are formed in the reaction of (PPh4)2 [Mo2(O2C -Ph)4Cl2] ·2 CH2Cl2 with dimethyl formamide/carbon tetrachloride in the presence of water. According to the structural investigations by X-ray methods PPh4[MoCl4(O CHNMe2)] crystallizes orthorhombically in the space group C2221 with four formula units per unit cell (3132 observed, independent reflexions, R - 0.068). The cell dimensions are a = 792.1 pm, b = 1656.8 pm, c = 2211.3 pm. The structure consists of PPh4⊕ cations and anions [MoOCl4(OCHNMe2)]⊖, in which the coordination sphere of the molybdenum atom is of distorted octahedral geometry. The ligands are four equatorial chlorine atoms, one terminal O atom (Mo = O 165 pm) and the O atom of the dimethyl formamide molecule (MoO 232 pm). The IR spectrum is reported
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6

Gil, Fernando, Santiago Ramón-Maiques, Alberto Marina, Ignacio Fita, and Vicente Rubio. "N-Acetyl-L-glutamate kinase from Escherichia coli: cloning of the gene, purification and crystallization of the recombinant enzyme and preliminary X-ray analysis of the free and ligand-bound forms." Acta Crystallographica Section D Biological Crystallography 55, no. 7 (July 1, 1999): 1350–52. http://dx.doi.org/10.1107/s0907444999005351.

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The gene for Escherichia coli N-acetyl-L-glutamate kinase (NAGK) was cloned in a plasmid and expressed in E. coli, allowing enzyme purification in three steps. NAGK exhibits high specific activity (1.1 µmol s−1 mg−1), lacks Met1 and forms dimers (shown by cross-linking). Crystals of unliganded NAGK diffract to 2 Å and belong to space group P6122 or its enantiomorph P6522 (unit-cell parameters a = b = 78.6, c = 278.0 Å) with two monomers in the asymmetric unit. Crystals of NAGK with acetylglutamate and the ATP analogue AMPPNP diffract to 1.8 Å and belong to space group C2221 (unit-cell parameters a = 60.0, b = 71.9, c = 107.4 Å), with one monomer in the asymmetric unit. NAGK crystallization will allow the determination of proposed structural similarities to carbamate kinase.
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7

Faggiani, R., H. E. Howard-Lock, C. J. L. Lock, and M. A. Turner. "The reaction of chloro(triphenylphosphine)gold(I) with 1-methylthymine." Canadian Journal of Chemistry 65, no. 7 (July 1, 1987): 1568–75. http://dx.doi.org/10.1139/v87-264.

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1-Methylthyminato-N3-triphenylphosphinegold(I) was prepared by reacting chloro(triphenylphosphine)gold(I) with 1-methylthymine in aqueous methanol at pH 11. The product was examined by X-ray crystallography and was found to have the orthorhombic space group C2221 (no. 20) with cell dimensions a = 12.760(7) Å, b = 11.530(2) Å, c = 31.893(5) Å, and eight formula units in the unit cell. Data were collected with use of MoKα radiation and a Syntex P21, diffractometer. The crystal structure was determined by standard methods and refined to R = 0.112 and Rw = 0.076 on the basis of 4760 unique reflections. Bond lengths and bond angles are normal. Packing in the crystal lattice is dominated by the triphenylphosphine rings which arrange roughly as blades of a propellor and are the source of the crystal's chirality. The title and related compounds were also examined by 1H nmr, 13C nmr, and vibrational spectroscopy.
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8

Chandra, Vikas, Akanksha Nagpal, A. Srinivasan, and T. P. Singh. "Purification, crystallization and preliminary X-ray crystallographic analysis of a phospholipase A2 from Daboia russelli pulchella." Acta Crystallographica Section D Biological Crystallography 55, no. 4 (April 1, 1999): 925–26. http://dx.doi.org/10.1107/s090744499900058x.

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Phospholipases are esterolytic enzymes which hydrolyze glycerophospholipids. The pharmacological efficiency of phospholipase A2 (PLA2) enzymes is reflected by their specificity towards a tissue or organ. The Russell's viper has been classified into two classes. Class 1 contains Viper russelli russelli, Viper russelli siamensis and Viper russelli formosensis, whereas class 2 contains Daboia russelli pulchella. The sequence identity between the PLA2s from these two classes is 47%. The novel PLA2 from Daboia russelli pulchella has been crystallized using the hanging-drop vapour-diffusion method with ammonium sulfate as precipitating agent. Crystals belong to the orthorhombic space group C2221 with unit-cell parameters a = 77.01, b = 92.29, c = 76.90 Å and two molecules in the asymmetric unit. These crystals diffract to about 2.49 Å resolution using a rotating-anode source.
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9

Bataille, Thierry, and Daniel Louër. "Powder and single-crystal X-ray diffraction study of the structure of [Y(H2O)]2(C2O4)(CO3)2." Acta Crystallographica Section B Structural Science 56, no. 6 (December 1, 2000): 998–1002. http://dx.doi.org/10.1107/s0108768100010004.

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From powder pattern indexing it has been demonstrated that [Y(H2O)]2(C2O4)(CO3)2, yttrium oxalate carbonate, crystallizes with orthorhombic symmetry, space group C2221, a = 7.8177 (7), b = 14.943 (1), c = 9.4845 (7) Å, V = 1108.0 (1) Å3, Z = 4. This unit cell displays a doubling of the c parameter, arising from weak diffraction lines observed in the powder diffraction pattern, with respect to results reported in the literature. The crystal structure has been solved ab initio using direct methods from powder data and has been confirmed by additional single-crystal data collected with a CCD area detector. The overall crystal structure is similar for both unit cells, except that an alternation of the carbonate groups in the direction parallel to the screw axis is displayed in the larger cell, while with the suggested half unit cell (space group C2mm) the carbonate groups would show only one orientation. The unit-cell determination strategy from single-crystal diffraction, collected with Nonius CAD-4 and Nonius Kappa CCD diffractometers, is discussed with respect to the results extracted from the powder diffraction pattern. The study demonstrates the power and usefulness of the full trace of a powder pattern for the detection of subtle structure details.
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10

Lee, Seungyeol, and Huifang Xu. "Using powder XRD and pair distribution function to determine anisotropic atomic displacement parameters of orthorhombic tridymite and tetragonal cristobalite." Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 75, no. 2 (March 16, 2019): 160–67. http://dx.doi.org/10.1107/s2052520619000933.

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Determination of the crystal structures of low-temperature tridymite and cristobalite using single-crystal XRD has been challenging because they generally occur as metastable fine-grained crystals in the geological environment. Therefore, using powder diffraction and scattering techniques is critical to study the low-temperature crystals. Synchrotron powder X-ray diffraction (XRD), pair distribution function (PDF) and transmission electron microscopy were used to investigate the structure of orthorhombic tridymite with C2221 symmetry and tetragonal cristobalite with P41212 symmetry, including their anisotropic atomic displacement parameters (ADPs). Rietveld refinement was used to determine the unit-cell parameters, fractional coordinates and isotropic atomic displacement parameters (U iso) of the tridymite and cristobalite. The PDF method was used to determine ADPs for each atom. The results suggest that the crystal structure with high quality ADP values can be obtained using the combined methods of XRD and PDF analyses. The method can be used for characterizing crystals that are not suitable for single-crystal XRD.
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Books on the topic "C2221 cell"

1

Quantum Mechanics, Cell-Cell Signaling, and Evolution. Elsevier, 2023. http://dx.doi.org/10.1016/c2021-1-00830-6.

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Modeling Electrochemical Dynamics and Signaling Mechanisms in Excitable Cells with Pathological Case Studies. Elsevier, 2022. http://dx.doi.org/10.1016/c2021-0-01485-1.

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Conference papers on the topic "C2221 cell"

1

McCalla, Amy, Patrick Grohar, Scott Martin, Eugen Buehler, Suntae Kim, Natasha Caplen, Joel Morris, et al. "Abstract C222: The identification of kinase targets in Ewing sarcoma cell lines using RNAi and high-throughput investigational agents screens." In Abstracts: AACR-NCI-EORTC International Conference: Molecular Targets and Cancer Therapeutics--Oct 19-23, 2013; Boston, MA. American Association for Cancer Research, 2013. http://dx.doi.org/10.1158/1535-7163.targ-13-c222.

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Oppenheim, David, David Malone, Aniekan Etuk, Timothy Murray, Laura McLaughlin, Roberto Spreafico, Claudia Pena-Murillo, et al. "Abstract C221: Glycoengineered anti-EGFR (GA201) elicits enhanced ADCC responses by NK cells from colorectal cancer patients despite tumor-associated impairments to natural cytotoxicity." In Abstracts: AACR-NCI-EORTC International Conference: Molecular Targets and Cancer Therapeutics--Nov 12-16, 2011; San Francisco, CA. American Association for Cancer Research, 2011. http://dx.doi.org/10.1158/1535-7163.targ-11-c221.

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