An X-ray crystallographic investigation into the structural basis of T-cell allorecognition

X射线结晶学是研究蛋白质三维结构的重要工具。蛋白质控制细胞内的生物过程，而蛋白质的确切形状决定了它们的功能。每种蛋白质都像一串珠子一样组成，组成单位是氨基酸。根据氨基酸序列的不同，蛋白质分子会弯曲并形成独特的复杂形状。这种三维形状允许它与碳水化合物、其他蛋白质，如酶或受体，甚至与DNA等分子产生特定的相互作用。要确定蛋白质的行为，关键是要知道蛋白质在原子水平上的精确三维形状。这项工作的重点是了解控制免疫系统的蛋白质的精确形状。免疫系统是个体抵御疾病的重要过程。这项工作将进一步加深我们对免疫系统的了解。

X-ray crystallography is an essential tool for solving the three-dimensional (3-D) structure of proteins. Proteins control the biological processes within the cell and it is the exact shape of proteins that determines how they function. Each protein is made up like a string of beads, with the building units being amino acids. Depending on the sequence of the amino acids, the protein molecule bends and forms a distinct, complex shape. This three dimensional shape allows it to specifically interact with carbohydrates, other proteins, such as enzymes or receptors, or even with molecules like DNA, to have its effect. To determine how a protein acts, it is vital to know the precise three-dimensional shape of a protein at the atomic level. This work is focused on understanding the precise shape of proteins that control the immune system. The immune system is avital process whereby individuals can fight off disease. This work will further our understanding of the immune system.