Search Results - "Lunina, Natalia L."

Local heterogeneity analysis of crystallographic and cryo-EM maps using shell-approximation by Lunin, Vladimir Y., Lunina, Natalia L., Urzhumtsev, Alexandre G.

“…In X-ray crystallography and cryo-EM, experimental maps can be heterogeneous, showing different level of details in different regions. In this work we…”
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Efficient calculation of diffracted intensities in the case of nonstationary scattering by biological macromolecules under XFEL pulses by Lunin, Vladimir Y., Grum-Grzhimailo, Alexei N., Gryzlova, Elena V., Sinitsyn, Dmitry O., Petrova, Tatiana E., Lunina, Natalia L., Balabaev, Nikolai K., Tereshkina, Ksenia B., Stepanov, Alexei S., Krupyanskii, Yurii F.

“…The calculation of diffracted intensities from an atomic model is a routine step in the course of structure solution, and its efficiency may be crucial for the…”
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Mask‐based approach to phasing of single‐particle diffraction data. II. Likelihood‐based selection criteria by Lunin, Vladimir Y., Lunina, Natalia L., Petrova, Tatiana E., Baumstark, Manfred W., Urzhumtsev, Alexandre G.

“…A new type of mask‐selection criterion is suggested for mask‐based phasing. In this phasing approach, a large number of connected molecular masks are randomly…”
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Mask-based approach to phasing of single-particle diffraction data by Lunin, Vladimir Y., Lunina, Natalia L., Petrova, Tatiana E., Baumstark, Manfred W., Urzhumtsev, Alexandre G.

“…A Monte Carlo‐type approach for low‐ and medium‐resolution phasing of single‐particle diffraction data is suggested. Firstly, the single‐particle phase problem…”
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Estimates of the twinning fraction for macromolecular crystals using statistical models accounting for experimental errors by Lunin, Vladimir Y., Lunina, Natalia L., Baumstark, Manfred W.

“…An advanced statistical model is suggested that is designed to estimate the twinning fraction in merohedrally (or pseudo‐merohedrally) twinned crystals. The…”
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Low-resolution structure determination of Na+-translocating NADH:ubiquinone oxidoreductase from Vibrio cholerae by ab initio phasing and electron microscopy by Lunin, Vladimir Y., Lunina, Natalia L., Casutt, Marco S., Knoops, Kèvin, Schaffitzel, Christiane, Steuber, Julia, Fritz, Günter, Baumstark, Manfred W.

“…A low‐resolution structure of the Na+‐translocating NADH:ubiquinone oxidoreductase from the human pathogen Vibrio cholerae was determined by ab initio phasing…”
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Low-resolution ab initio phasing of Sarcocystis muris lectin SML-2 by Müller, Jürgen J., Lunina, Natalia L., Urzhumtsev, Alexandre, Weckert, Edgar, Heinemann, Udo, Lunin, Vladimir Y.

“…Structural analysis of the lectin SML‐2 faced difficulties when applying standard crystallographic phasing methods. The connectivity‐based ab initio phasing…”
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Mask-based approach to phasing single-particle diffraction data by Urzhumtsev, Alexandre, Lunina, Natalia L., Petrova, Taniana E., Baumstark, Manfred W., Lunin, Vladimir Y.

“…Abstract only…”
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Low-resolution ab initio phasing: problems and advances by Lunin, Vladimir Y., Lunina, Natalia L., Petrova, Tatiana E., Skovoroda, Tatiana P., Urzhumtsev, Alexandre G., Podjarny, Alberto D.

“…If only native amplitudes are used for structure determination, then additional `theoretical' information is necessary to determine their phases. For use in a…”
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Connectivity properties of high-density regions and ab initio phasing at low resolution by Lunin, Vladimir Y., Lunina, Natalia L., Urzhumtsev, Alexandre G.

“…It is expected that a correctly phased low‐resolution synthesis would show a set of isolated `blobs' located near to the centres of the macromolecules if the…”
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Low-resolution data analysis for low-density lipoprotein particle by Lunin, Vladimir Y., Lunina, Natalia L., Ritter, Stephan, Frey, Ingrid, Berg, Aloys, Diederichs, Kay, Podjarny, Alberto D., Urzhumtsev, Alexandre, Baumstark, Manfred W.

“…The knowledge of the molecular structure of LDL, a large lipoprotein complex, is of great interest for medical investigations. Currently available LDL crystals…”
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Density constraints and low-resolution phasing by Urzhumtsev, Alexandre G., Lunina, Natalia L., Skovoroda, Tatiana P., Podjarny, Alberto D., Lunin, Vladimir Y.

“…Direct phasing needs additional information of a non‐specific kind in order to select the correct phase set from all possible ones. This paper analyses the use…”
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