Tutorial of Basic:http://salilab.org/modeller/tutorial/basic.html

 

一、Modeller环境准备

1、Python安装

  • 下载地址:http://python.org/ftp/python/2.7.3/python-2.7.3.msi
  • 下载完,直接双击安装
  • 在CMD命令行里输入python,如果进不了如下所述的python shell,则需要配置环境变量
  • 将Python的安装目录“E:\Python27”添加到环境变量的path里面
C:\Program Files\Modeller9.11>python
Python 2.7.2 (default, Jun 12 2011, 15:08:59) [MSC v.1500 32 bit (Intel)] on win
32
Type "help", "copyright", "credits" or "license" for more information.
>>>

 

2、Modeller安装

 

3、Input、Output文件下载

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

二、Modeller脚本运行

1、双击脚本运行

2、IDLE打开脚本==》Run==》Run Module  F5

3、CMD命令行运行

  • 如果直接在命令行里“C:\>C:\basic-example\build_profile.py”会报IOError错,文件路径错误

  • 解决方式:修改build_profile.py中的文件路径

 

三、Modeller脚本修改

  • 修改前
from modeller import *

log.verbose()
env = environ()

#-- Prepare the input files

#-- Read in the sequence database
sdb = sequence_db(env)
sdb.read(seq_database_file='pdb_95.pir', seq_database_format='PIR',
         chains_list='ALL', minmax_db_seq_len=(30, 4000), clean_sequences=True)

#-- Write the sequence database in binary form
sdb.write(seq_database_file='pdb_95.bin', seq_database_format='BINARY',
          chains_list='ALL')

#-- Now, read in the binary database
sdb.read(seq_database_file='pdb_95.bin', seq_database_format='BINARY',
         chains_list='ALL')

#-- Read in the target sequence/alignment
aln = alignment(env)
aln.append(file='TvLDH.ali', alignment_format='PIR', align_codes='ALL')

#-- Convert the input sequence/alignment into
#   profile format
prf = aln.to_profile()

#-- Scan sequence database to pick up homologous sequences
prf.build(sdb, matrix_offset=-450, rr_file='${LIB}/blosum62.sim.mat',
          gap_penalties_1d=(-500, -50), n_prof_iterations=1,
          check_profile=False, max_aln_evalue=0.01)

#-- Write out the profile in text format
prf.write(file='build_profile.prf', profile_format='TEXT')

#-- Convert the profile back to alignment format
aln = prf.to_alignment()

#-- Write out the alignment file
aln.write(file='build_profile.ali', alignment_format='PIR')
  • 修改后
from modeller import *

log.verbose()
env = environ()

path = "C://basic-example/"

#-- Prepare the input files

#-- Read in the sequence database
sdb = sequence_db(env)
sdb.read(seq_database_file=path+'pdb_95.pir', seq_database_format='PIR',
         chains_list='ALL', minmax_db_seq_len=(30, 4000), clean_sequences=True)

#-- Write the sequence database in binary form
sdb.write(seq_database_file=path+'pdb_95.bin', seq_database_format='BINARY',
          chains_list='ALL')

#-- Now, read in the binary database
sdb.read(seq_database_file=path+'pdb_95.bin', seq_database_format='BINARY',
         chains_list='ALL')

#-- Read in the target sequence/alignment
aln = alignment(env)
aln.append(file=path+'TvLDH.ali', alignment_format='PIR', align_codes='ALL')

#-- Convert the input sequence/alignment into
#   profile format
prf = aln.to_profile()

#-- Scan sequence database to pick up homologous sequences
prf.build(sdb, matrix_offset=-450, rr_file='${LIB}/blosum62.sim.mat',
          gap_penalties_1d=(-500, -50), n_prof_iterations=1,
          check_profile=False, max_aln_evalue=0.01)

#-- Write out the profile in text format
prf.write(file=path+'build_profile.prf', profile_format='TEXT')

#-- Convert the profile back to alignment format
aln = prf.to_alignment()

#-- Write out the alignment file
aln.write(file=path+'build_profile.ali', alignment_format='PIR')

raw_input()

 

四、Python版本需求

  理论上应该是可以支持所有python版本的,但是对于Python 2.5的支持有些问题

  对于Python 2.5会报如下的错,因为“C:\Program Files\Modeller9.11\modlib\python2.5”目录下没有_modeller.pyd这个文件,导致程序运行到“C:\Program Files\Modeller9.11\modlib\modeller\__init__.py”里的“import _modeller”时,出现错误

# Set Modeller install location and license
import _modeller
if hasattr(config, 'license'):
    _modeller.mod_license_key_set(config.license)
if hasattr(config, 'install_dir'):
    _modeller.mod_install_dir_set(config.install_dir)

_modeller.mod_start()

  所以,推荐安装最新版本的Python

posted on 2012-12-30 04:56  HQM  阅读(6569)  评论(1编辑  收藏  举报