为了加入这个网站，我把心血分享给大家，绝对都是原创！

A：mkdatabas0.cpp 做blast前对大的非冗余NR或者是uniref数据库的预处理。为每条序列计算出等长的（长度为20*19/2=210）的数值数组。用来后期比较各个序列间的距离做准备。

B：mkdatabas.cpp 是通过比较要blast对象的那条序列和reference序列的距离，提出距离过远序列。用得到的新数据库做blast。

C：dl_fa.pl程序比较简单，但很实用，可以批量的从网站下载想要的fasta序列

D：scop40_pdbFold.pl里面内容比较丰富，批量做两两序列的比对，根据比对结果处理dssp文件

E：专门针对蛋白二级结构固定的格式文件即DSSP文件所设计的一个脚本。可以根据自己的需要调节数组，选取想要的内容。并做其他操作，比如本脚本就是和一级序列比对（即needlman）结果结合的一个脚本。-To join this site, I put effort to share to you, are absolutely original! A: mkdatabas0.cpp do before blast pretreatment on large non-redundant NR or uniref database. Calculated for each sequence of equal length (a length of 20* 19/2 = 210) of the array of values. Used to compare the distance between each sequence between late to prepare. B: mkdatabas.cpp is by comparison to the distance blast piece sequences and reference sequences of objects, the proposed distance is too far sequence. Do with the new database blast obtained. C: dl_fa.pl procedure is relatively simple, but very practical, you can batch download from the Web site you want fasta sequence D: scop40_pdbFold.pl which is rich in content, bulk do pairwise sequence alignment, according to the results of treatment than dssp file E: That is a scr ipt file DSSP designed specifically for protein secondary structure fixed format files. The array can be adjusted according to your needs, select the desired content. And do other opera