《高强磁场对丙氨酸结晶成长的影响研究》

Today, in life science and bioengineering the most important problem is probably to understand the relationship between the primary sequence, the higher order structure and the function of proteins. One of the most critical aspects of the problems, is understanding the structure of different protein itself which constitutes different lives. Two methods are nowcommonly used to determine the atomic structural models for proteins: nuclear magnetic resonance and X-ray crystallography. Although nuclear magnetic resonance allows the direct, noninvasive determination of protein structure, it is hampered by low sensitivity and is limited to protein less than 30,000 molecular weights. Until April 1999, about ten thousands of kinds of protein structures have been registered by the Protein Data Bank. Among them, about eight thousands of kinds were analyzed and obtained by X-ray crystallographic method which has become more and more important for protein structure analysis. However, X-ray crystallographic method is not only limited in some respects requiring a single, high order, three-dimensional crystal, but also is the availability of high-quality crystals in order to perform structural characterization-
besides sufficient size (typically 0.1mm in all dimensions), the quality of protein crystals determines the accuracy and reliability of the three-

CHAPTER 1 INTRODUCTION
1.1 Previous review
1.2 Purpose and meaning of this book
1.3 Outline of this book.
Nomenclature

References

CHAPTER 2 EFFECT OF THE MANGNETIC FIELD ON THE GROWTH RATE OF L-ALANINE CRYSTAL
2.1 Introduction
2.2 Experiment
2.3 Results and Discussion.
2.4 Conclusions

Nomenclature

References

CHAPTER 3 EFFECT OF THE MAGNETIC GRADIENT ON THE GROWTH RATE OF L-ALANINE CRYSTAL
3.1 Introduction
3.2 Experiment

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