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Updated: Jun 9, 2025

Analysis of SEC-SAXS data via EFA deconvolution and Scatter
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Analysis of SEC-SAXS data via EFA deconvolution and Scatter

Published on: January 28, 2021

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从稀疏和杂的单分子X射线散射图像中确定贝叶斯电子密度

Steffen Schultze1, Helmut Grubmüller1

  • 1Max Planck Institute for Multidisciplinary Sciences, Am Fassberg 11, Göttingen, Germany.

Science advances
|October 25, 2024
PubMed
概括

我们开发了一种贝叶斯方法,用单个分子X射线散射数据来确定生物分子结构. 这种方法克服了低光子计数和高噪声,使得能够确定小蛋白质的电子密度.

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High-resolution Spatiotemporal Analysis of Receptor Dynamics by Single-molecule Fluorescence Microscopy15:13

High-resolution Spatiotemporal Analysis of Receptor Dynamics by Single-molecule Fluorescence Microscopy

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The Quantum-Mechanical Model of an Atom

Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
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X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are  scattered by the electron clouds around the sample atoms. The  X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal...
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In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
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