Related Experiment Video
Updated: Mar 3, 2026

10:10
Neutron Crystallography Data Collection and Processing for Modelling Hydrogen Atoms in Protein Structures
Published on: December 1, 2020
5.7K
Neutron crystallography aids in drug design.
1Large-Scale Structures Group, Institut Laue-Langevin, 71 Avenue des Martyrs, Grenoble, 38000, France.
Iucrj
|May 3, 2017
Summary
Neutron crystallography reveals detailed interactions between human carbonic anhydrase II and inhibitors methazolamide and acetazolamide. This technique aids structure-based drug design by visualizing drug-target binding.
Area of Science:
- Biochemistry
- Structural Biology
- Crystallography
Background:
- Drug design relies on understanding drug-target interactions, including hydrogen bonding and hydrophobic forces.
- Neutron crystallography offers unique insights into these interactions by visualizing hydrogen atoms.
Purpose of the Study:
- To illustrate how neutron crystallography can guide structure-based drug design.
- To present the room-temperature neutron structure of human carbonic anhydrase II in complex with methazolamide.
Main Methods:
- Room-temperature neutron crystallography was employed.
- The structure was determined to 2.2 Å resolution.
- Comparison with a previously determined structure of acetazolamide complex.
Main Results:
- Detailed visualization of hydrogen bonding and other interactions between human carbonic anhydrase II and methazolamide.
- Comparison highlights differences in binding modes with acetazolamide.
Conclusions:
- Neutron crystallography is a valuable tool for structure-based drug design.
- Understanding inhibitor binding at the atomic level can inform the development of new therapeutics.
Related Concept Videos
Structure-Activity Relationships and Drug Design
1.9K
Drug design is a dynamic field that involves discovering and developing new medications based on specific biological targets. This process heavily relies on structure-activity relationships (SAR) and quantitative structure-activity relationships (QSAR) to guide the design and optimization of efficient drugs.
SAR studies the intricate relationship between a drug's chemical structure and biological activity. It focuses on understanding how modifications to a drug's structure can influence...
SAR studies the intricate relationship between a drug's chemical structure and biological activity. It focuses on understanding how modifications to a drug's structure can influence...
1.9K
X-ray Diffraction of Biological Samples
5.0K
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...
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...
5.0K
Determination of Crystal Structures
12
In the late 1800s, the revelation that light extended beyond visible wavelengths led to the discovery of X-rays by Wilhelm Roentgen. Recognized as high-energy electromagnetic radiation with short wavelengths, X-rays prompted exploration into their interaction with crystals. Max von Laue proposed in 1912 that the periodic arrangement of atoms, ions, or molecules in crystals would cause them to diffract X-rays, a hypothesis confirmed through experiments with copper sulfate and zinc sulfide...
12
X-ray Crystallography
26.5K
The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
26.5K

