近年来,结构生物学的发展呈现出快速增长的新态势.精确测定的生物大分子结构以指数曲线增加,速率已达到5.1个/d.截止1998年4月的统计,已从PDB库释放出来的生物大分子原子坐标套数已达7 454.同时,以精确结构知识为基础揭示生命活动的规律已达到前所未有的深度和广度.在技术和方法方面,近年来第三代同步辐射的应用与一些新方法的结合,可用极小的晶体测定极大的结构,使某些膜蛋白及亚细胞器的精确结构测定成为可能.NMR溶液结构测定的分子质量已突破35 000,电子晶体学阐释结构的分辨率已接近0.3 nm,可探测的动态过程的时间尺度已达到10-9 s.结构生物学与基因组学的结合正在产生一个新的科学领域:结构基因组学(structural genomics),它在未来后基因组时代的生物学中占有重要地位.
Recent years the structural biology have been developing very fast and growing into a new phase. The rate of determination of biomacromolecular structure has been reached to 5.1/day and goes up as an exponential curve. To the date of April '98, the released coordinates from PDB have been 7 454. Meanwhile the structure research combines with the functional research to gain insight into mechanisms of many biological process. The application of the third generation synchrotron radiation has greatly impact on X-ray crystal structure determination. With very bright X-ray from the synchrotron, one can start from very small crystals and gain a big structure, and also detect the instantaneous change of structure in time scale of 10-9 s. It therefore may open the door for the structure determination of membrane proteins and large complex and assembly as nucleosome core particle. The molecular weight of solution structure determined by NMR has beyond 35 000. Now the structural biology is marrying with the genomics to produce a new “big science”, the structural genomics, which will provide a large step towards the understanding of life in the postgenomic ear.
王大成.结构生物学研究的一些新进展[J].生物化学与生物物理进展,1998,25(5):396-403
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