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Preliminary X-ray crystallographic analysis of intercellular adhesion molecule-1
P R Kolatkar1, M A Oliveira, M G Rossmann
1Department of Biological Sciences, Purdue University, West Lafayette, IN 47907.
Journal of Molecular Biology
|June 20, 1992
Summary
Researchers crystallized the intercellular adhesion molecule-1 (ICAM-1) domains, the receptor for human rhinovirus. These crystals diffracted X-rays to 3.0 Å resolution, enabling structural analysis.
Area of Science:
- Structural biology
- Virology
- Biochemistry
Background:
- Intercellular adhesion molecule-1 (ICAM-1) is a key receptor for major group human rhinoviruses.
- Understanding ICAM-1 structure is crucial for developing antiviral therapies.
Purpose of the Study:
- To determine the crystal structure of the amino-terminal domains of ICAM-1.
- To provide insights into the binding mechanism of human rhinovirus.
Main Methods:
- Crystallization of the two amino-terminal domains of ICAM-1.
- X-ray diffraction analysis to 3.0 Å resolution.
- Determination of crystal space group and cell dimensions.
Main Results:
- Successfully obtained trigonal crystals (space group P3(1)21 or P3(2)21) of ICAM-1 amino-terminal domains.
- Diffraction data collected to 3.0 Å resolution.
- Unit cell dimensions determined as a = b = 55.7 Å, c = 166.3 Å, with six molecules per unit cell.
Conclusions:
- The structural data provides a basis for understanding ICAM-1-rhinovirus interactions.
- This work facilitates the design of novel antiviral agents targeting rhinovirus infections.