英语翻译The complete covalent structure is tailed the primary structure (V structure).It must include a specification of the configuration of all asymmetric centers* both in the polymer chain backbone and on the side chains of each of the monomer

英语翻译The complete covalent structure is tailed the primary structure (V structure).It must include a specification of the configuration of all asymmetric centers* both in the polymer chain backbone and on the side chains of each of the monomer
英语翻译
The complete covalent structure is tailed the primary structure (V structure).It must include a specification of the configuration of all asymmetric centers* both in the polymer chain backbone and on the side chains of each of the monomer residues.
The primary structure of hundreds of proteins and nucleic acids has been determined by elaborate chemical analysis.An up-to-date compilation of all known primary structures is published regularly.It would be extremely time-consuming to write a chemical formula for the entire primary structure.Therefore,it is customary to abbreviate prima-ry structures by using an alphabetic code.The most common version of this,(shown be-low) uses a one-letter code for each nucleotide and a three-letter code for each amino acid.The terms sequence and primary structure are often used interchangeably and,in fact,they are identical for all single-chain non-crosslinked structures.Note that neither term implies knowledge of the conformation of any individual residues or the polymer back-bone.
Type Example Abbreviation
Polystyrene >CH2 CHPh CH; CHPh CH2 CHPh >
Polyamide —>NH— (Cttr)*—NH—CO- (CH,)„ CO-NH— (CH.V-NH— CO—>
Polypeptide —>NH—CH(CH3>—CO—NH—CH—CO—NH—CH(H)—CO—>
-Ala—Ser—GlyPolysaccharide —NAG-NAM-NAG
Polynucleotide ApUpC
1,Secondary structure describes helices of residues
Many biopolymer chains can form locally ordered,three-dimensional structures.For in-dividual,linear,head-to-tail polymers,with asymmetric monomer units,the only kind of symmetric three-dimensional ordered structure possible is a helix.This contains a screw axis of symmetry.
Other helices can be formed by bringing together two or more individual helical strands.Double and triple helices are fairly common in nature.In multiple-stranded helices,the indi-vidual covalent chains can run in parallel directions,but it is also possible to construct he-lices in which some strands run in apposite directions.The Watson-Crick DNA double-heli-cal structure is a 10-fold C10 residues per turn) double helix with antiparallel strands.Polypeptide £) sheets are multistranded twofold helices in which some neighboring strands run parallel whereas others run antiparallel.
The secondary structure (2° structure) of a biopolymer is defined as an enumeration of the particular regions of the primary structure involved in any kind of helix.More generally,secondary structure is a list of all three dimensional regions that have ordered,locally sym metric backbone structures.

英语翻译The complete covalent structure is tailed the primary structure (V structure).It must include a specification of the configuration of all asymmetric centers* both in the polymer chain backbone and on the side chains of each of the monomer
完整的共价键结构尾的主要结构（五结构） .它必须包括一个规范的配置,所有非对称中心*无论是在高分子链上的骨干和侧链每个单体残留物.
一级结构的数以百计的蛋白质和核酸已确定的详细化学分析.一项最新的汇编所有已知的主要结构是定期出版.这将是非常费时写化学式为整个主结构.因此,这是习惯省略表面上性结构使用字母代码.最常见的版本,,（表明是低）使用一个字母代码为每个核苷酸和三个字母代码为每个氨基酸.的条款顺序和主要结构往往交替使用,事实上,他们对所有单链非交联结构.请注意,既不长期意味着知识构的任何个人或残留聚合物骨干.
输入Example缩写
聚苯乙烯“ CH2的CHPh甲烷; CHPh CH2的CHPh ”
聚酰胺- “新罕布什尔（ Cttr ） *-铵钴（甲烷） ,”共同铵（ CH.V氨钴“
多肽- “氨基甲烷（甲基”钴铵的CH 钴铵的CH （高）钴“
丙氨酸,丝氨酸GlyPolysaccharide葡萄糖苷南葡萄糖苷
多核苷酸ApUpC
1 ,二级结构描述螺旋残留
许多生物高分子链,可以形成本地命令,三维结构.对于个体,线性,头对尾聚合物单体不对称单位,唯一的对称的三维有序结构可能是一个螺旋.这包含了螺旋轴对称.
其他螺旋能形成聚集两个或两个以上的个人螺旋链.双重和三重螺旋是相当普遍的性质.在多股螺旋的个体vidual共价链可以并行运行方向,但它也有可能建造他,lices中,一些股在适当的方向运行.沃森,克里克DNA双螺旋- Cal的结构是一个10倍C10残留每转）与反平行双螺旋链.多肽£ ）表multistranded双重螺旋中,一些周边链而其他并行运行反平行.
二级结构（ 2 °结构）的生物高分子是指列举的特定区域的主要结构参与任何形式的螺旋.更一般地说,二级结构列出了所有三个地区的三维排列,当地骨干结构对称度量
谷歌翻译（好长额）