三级结构

BP神经网络在蛋白质三级结构预测中能大大提高预测准确率。

BP neural network in prediction of protein tertiary structure can greatly improve predicting accuracy .

这些坐标常被称为3-D结构或三级结构。

These atomic coordinates are also referred to as the3-D structure or tertiary structure .

传统的电子商务应用系统都是基于浏览器、网页（web）服务器、后台服务器这样一种三级结构。

Traditional e-commerce applications are based of browser , web servers , back-end server such a three-tier structure .

利用BP神经网络预测蛋白质三级结构

Prediction of Protein Structural Class by BP Neural Network

三级结构预测表明，该蛋白C端为球状结构域，而N端结构对其发挥调控作用起重要作用。

Three-dimensional structure prediction showed that this protein has spherical structure domain , while the structure of its N terminal make an important function in regulation function .

基于ERP／MES／PCS三级结构的金矿企业现代化集成制造系统

The Contemporary Integrated Manufacturing System of Gold Mine Enterprise Based on the ERP / MES / PCS Frame

肺癌细胞p53基因第282位密码子点突变后蛋白三级结构改变的预测

Prediction of the possible tertiary structure alterations of p53 protein following point mutation in p53 gene condon 282 in lung cancer cells

该系统采用JSP，Java，VISUALBASIC，ASP多种代码混合编程，利用组件技术，数据封装，模块化的三级结构体系框架进行系统设计。

The system uses JSP , Java , Visual Basic , ASP variety of mixed programming code , components , data encapsulation , modular three-tier architecture framework .

蛋白质的三级结构是以实验方式确定（求解）的，主要采用名为X-rayDiffraction或X-rayCrystallography的方法。

The tertiary structure of a protein is experimentally determined ( solved ), predominantly by a method called X-ray Diffraction or X-ray Crystallography .

使用VB6可以开发Internet应用程序（如基于Browser／Server模式的三级结构应用系统）。

Using VB6 can develop Internet application programs ( such as three-tiered architecture application system which is based on Browser / Server mode ) .

光谱结果表明，与GO结合后，GOx的二级结构和三级结构均发生了很大的变化。

The spectroscopic results indicated that GOx underwent substantial conformational changes both at secondary and tertiary structure level after assembling with GO .

由于这些变化，NMR可系统地决定多个实例（模型）来代表同一蛋白质略有变化的三级结构。

Due to these variations , NMR methodically determines multiple instances ( models ) that represent slightly shifted tertiary structures for the same protein .

TG表明，碱处理主要影响大豆分离蛋白的三级结构（多肽主链按特定的几何排布，形成近似球形的紧密结构）。3、成功制备SPI/PVA塑料。

TG showed that the alkali treatment mainly affects the tertiary structure of SPI . 3 , Successfully prepared SPI / PVA plastics .

通过几种球形蛋白纯蛋白质的结晶和精确的使用x一射线结晶学确定了完整的三级结构（一个独特的三维形状）。

The complete tertiary structure ( a unique three-dimensional shape ) has been determined by crystallization of pure protein for a few globular proteins and by elaborate use of X-ray crystallography .

Hg2+处理或NBS修饰BSA溶液，均引起α-螺旋含量减少和三级结构构象的改变。

Hg ~ ( 2 + ) treatment or NBS modification changed the content of secondary structure and conformation of BSA .

四种保护剂的加入可以使蛋白的二级结构得到保留，其中PEG的保护效果最佳，但对三级结构的变化影响不大。

Four protective agents can stable the protein secondary structure , but less help with the changes in the tertiary structure loss , PEG best protection . 3 .

然而，获得RNA二级结构或三级结构信息并非易事，采用生物实验的方法代价高，不易普及和推广。

However , RNA secondary structure or tertiary structure information is not easy to get . Because the method of biological experiments is costly , it is difficult to popularize and promote .

此外，这个三级结构还可用来查找PDB以获得蛋白质间的相互作用。

The tertiary structure can also be exploited to search the PDB for interactions between proteins .

核盘菌AROM蛋白的三级结构分析

Analysis of three-dimensional structure of AROM protein from Sclerotinia sclerotiorum

而在亲水性有机溶剂DMF中，组成Hb分子的两个二聚体分离，肽链部分舒展，表明其二、三级结构和四级结构遭到不同程度的破坏。

However , when in hydrophilic organic solvent such as dimethylformamide , the two dimers of Hb molecule become separate and unfold to a certain extent .

hRI的三级结构呈对称的马蹄形结构。

Tertiary structure of hRI is symmetry horseshoe-shape .

对PCL和其他单子叶甘露糖结合凝集素的序列进行了同源性比对，预测了该蛋白的二级和三级结构，结果表明，PCL可能是一个有凝集素功能的蛋白。

Sequence homology analysis was carried out by aligning PCL with other monocot mannose-binding agglutinins . The secondary structure and third-dimensional structure of PCL were predicted .

使用统一建模语言UML记录了3D组态动力学仿真建模需求，系统、部件、状态变量三级结构下的动力学计算机制，仿真软件结构和应用领域中重要的类及其关系。

Using Unified Modeling Language , we recorded the 3D configuration simulation modeling requirments , dynamics computational mechanism in the 3 layers of variables , parts and system , and important classes and associations in software architecture and application domain .

为了能够预测假结和向三级结构预测进军，一批新的算法和改进算法被纷纷提出，RNA结构预测研究又重新受到人们的关注，成为生物信息学中一个热点问题。

In order to solve these problems , some new algorithms and modified algorithms are proposed one after another . So the prediction of RNA structure catches researchers ' attention again and becomes a hot topic in bioinformatics .

RNA三级结构是实现其生物学功能的基础，要想准确理解RNA分子的生物学功能，必须要先得到它的精细结构。

The tertiary structure of RNA is the basis of its biological function , so if we want to know the Regulatory functions of RNA molecules , especially non-coding RNAs , we must get their refined structures firstly .

并且制作了三级结构250W金属卤化物灯用数字控制电子镇流器样机和两级结构250W金属卤化物灯用数字控制电子镇流器样机，最后给出了样机的实验结果，试验结果验证了设计的合理性。

Two prototypes for 250W metal halide lamps are presented , and the experimental results are displayed .

最近几年的研究成果表明现有的结构预测方法能够获得很多的候选RNA三级结构，然而已存在的打分方法却不能很好的从这些采样到的构象中挑选出近天然态构象。

Recent years , the studied results show that the RNA structure prediction methods can get a lot of candidate RNA structures , however , the scoring function could not successfully select the near native conformation state from them .

随着SDS浓度增加，SDS的疏水链与蛋白的疏水基团相互作用对BSA的三级结构和二级结构有一定的影响，BsA的氧化峰电流ip先迅速增加后迅速减小到缓慢减小。

With the increase of the concentration of SDS , the tertiary structure and the a-helicity changes because of the interaction between BSA and SDS . The cathodic peak current of BSA rapid increases firstly but decrease subsequently .

远紫外和近紫外CD谱分析表明：Hg2+的结合要引起BSA，HSA以及NBS修饰的HSA二级结构的α螺旋减少，三级结构发生一定的改变。

Far-UV and near-UV CD spectra provide evidence that the binding of Hg ( II ) induces BSA , HSA and NBS modified HSA a loss of α helix and rearrangement of tertiary structure .

通过对三界系统中，不同门纲代表种（22个种）的SSD序列分析发现，SSD在组成上有很大的偏向性，在三级结构上高度保守。

We analyzed the 22 sequences of SSD from representative species of different phyla . The results show that the amino acid composition of SSD is biased greatly but three-dimensional structure is conservative .