annotate SAINT_preprocessing.py @ 47:8ca1d3bc5906 draft

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author bornea
date Thu, 19 May 2016 11:54:41 -0400
parents d223d815e9c5
children 265f5ae47a56
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1 #######################################################################################
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2 # Python-code: SAINT pre-processing from Scaffold "Samples Report" output
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3 # Author: Brent Kuenzi
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4 #######################################################################################
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5 # This program reads in a raw Scaffold "Samples Report" output and a user generated
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6 # bait file and autoformats it into prey and interaction files for SAINTexpress
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7 # analysis
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8 #######################################################################################
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9 # Copyright (C) Brent Kuenzi.
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10 # Permission is granted to copy, distribute and/or modify this document
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11 # under the terms of the GNU Free Documentation License, Version 1.3
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12 # or any later version published by the Free Software Foundation;
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13 # with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
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14 # A copy of the license is included in the section entitled "GNU
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15 # Free Documentation License".
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16 #######################################################################################
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17 ## REQUIRED INPUT ##
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18
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19 # 1) infile: Scaffold "Samples Report" output
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20 # 2) baitfile: SAINT formatted bait file generated in Galaxy
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21 # 3) fasta_db: fasta database for use (defaults to SwissProt_HUMAN_2014_08.fasta)
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22 # 4) prey: Y or N for generating a prey file
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23 # 5) make_bait: String of bait names, assignment, and test or control boolean
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24 #######################################################################################
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25
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26 import sys
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27 import os.path
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28 import re
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29
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30
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31 infile = sys.argv[1]
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32 #Scaffold "Samples Report" output.
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33 prey = sys.argv[2]
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34 # Y or N boolean from Galaxy.
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35 fasta_db = sys.argv[3]
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36 tool_path = sys.argv[8]
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37 if fasta_db == "None":
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38 fasta_db = str(tool_path) + "/SwissProt_HUMAN_2014_08.fasta"
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39 make_bait = sys.argv[6]
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40 bait_bool = sys.argv[9]
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41
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42
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43 def bait_create(baits, infile):
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44 # Verifies the Baits are valid in the Scaffold file and writes the Bait.txt.
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45 baits = make_bait.split()
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46 i = 0
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47 bait_file_tmp = open("bait.txt", "w")
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48 order = []
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49 bait_cache = []
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50 while i < len(baits):
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51 if baits[i+2] == "true":
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52 T_C = "C"
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53 else:
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54 T_C = "T"
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55 bait_line = baits[i] + "\t" + baits[i+1] + "\t" + T_C + "\n"
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56 bait_cache.append(str(bait_line))
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57 i = i + 3
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58
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59 for cache_line in bait_cache:
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60 bait_file_tmp.write(cache_line)
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61
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62 bait_file_tmp.close()
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63
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64 if bait_bool == 'false':
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65 bait_create(make_bait, infile)
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66 baitfile = "bait.txt"
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67 else:
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68 bait_temp_file = open(sys.argv[10], 'r')
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69 bait_cache = bait_temp_file.readlines()
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70 bait_file_tmp = open("bait.txt", "wr")
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71 for cache_line in bait_cache:
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72 bait_file_tmp.write(cache_line)
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73 bait_file_tmp.close()
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74 baitfile = "bait.txt"
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75
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77 class ReturnValue1(object):
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78 def __init__(self, sequence, gene):
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79 self.seqlength = sequence
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80 self.genename = gene
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81
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82
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83 class ReturnValue2(object):
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84 def __init__(self, getdata, getproteins, getheader):
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85 self.data = getdata
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86 self.proteins = getproteins
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87 self.header = getheader
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88
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89
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90 def main(Scaffold_input, baits):
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91 bait_check(baitfile, Scaffold_input)
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92 make_inter(Scaffold_input)
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93 if prey == 'true':
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94 make_prey(Scaffold_input)
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95 no_error_inter(Scaffold_input)
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96 os.rename('prey.txt', sys.argv[5])
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97 elif prey == 'false':
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98 if os.path.isfile('error proteins.txt') == True:
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99 no_error_inter(Scaffold_input)
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100 pass
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101 elif prey != 'true' or 'false':
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102 sys.exit("Invalid Prey Argument: Y or N")
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103
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104
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105 def get_info(uniprot_accession_in):
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106 # Get aminoacid lengths and gene name.
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107 error = open('error proteins.txt', 'a+')
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108 data = open(fasta_db, 'r')
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109 data_lines = data.readlines()
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110 db_len = len(data_lines)
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111 seqlength = 0
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112 count = 0
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113 for data_line in data_lines:
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114 if ">sp" in data_line:
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115 namer = data_line.split("|")[2]
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116 if uniprot_accession_in == data_line.split("|")[1]:
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117 match = count + 1
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118 if 'GN=' in data_line:
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119 lst = data_line.split('GN=')
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120 lst2 = lst[1].split(' ')
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121 genename = lst2[0]
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122 if 'GN=' not in data_line:
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123 genename = 'NA'
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124 while ">sp" not in data_lines[match]:
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125 if match <= db_len:
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126 seqlength = seqlength + len(data_lines[match].strip())
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127 match = match + 1
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128 else:
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129 break
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130 return ReturnValue1(seqlength, genename)
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131 if uniprot_accession_in == namer.split(" ")[0]:
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132 match = count + 1
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133 # Ensures consistent spacing throughout.
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134 if 'GN=' in data_line:
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135 lst = data_line.split('GN=')
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136 lst2 = lst[1].split(' ')
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137 genename = lst2[0]
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138 if 'GN=' not in data_line:
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139 genename = 'NA'
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140 while ">sp" not in data_lines[match]:
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141 if match <= db_len:
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142 seqlength = seqlength + len(data_lines[match].strip())
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143 match = match + 1
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144 else:
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145 break
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146 return ReturnValue1(seqlength, genename)
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147 count = count + 1
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148 if seqlength == 0:
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149 error.write(uniprot_accession_in + '\t' + "Uniprot not in Fasta" + '\n')
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150 error.close
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151 seqlength = 'NA'
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152 genename = 'NA'
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153 return ReturnValue1(seqlength, genename)
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154
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155
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156 def readtab(infile):
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157 with open(infile, 'r') as input_file:
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158 # read in tab-delim text
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159 output = []
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160 for input_line in input_file:
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161 input_line = input_line.strip()
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162 temp = input_line.split('\t')
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163 output.append(temp)
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164 return output
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165
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166
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167 def read_Scaffold(Scaffold_input):
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168 # Get data, proteins and header from Scaffold output
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169 dupes = readtab(Scaffold_input)
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170 cnt = 0
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171 for Scaffold_line in dupes:
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172 cnt += 1
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173 if Scaffold_line[0] == '#':
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174 # Finds the start of second header.
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175 header_start = cnt-1
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176 header = dupes[header_start]
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177 prot_start = header.index("Accession Number")
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178 data = dupes[header_start+1:len(dupes)-2]
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179 # Cut off blank line and END OF FILE.
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180 proteins = []
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181 for Scaffold_line in data:
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182 Scaffold_line[4] = Scaffold_line[4].split()[0]
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183 # Removes the (+##) that sometimes is attached.
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184 uniprot_re = re.compile("[OPQ][0-9][A-Z0-9]{3}[0-9]|[A-NR-Z][0-9]([A-Z][A-Z0-9]{2}[0-9]){1,2}")
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185 for protein in data:
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186 prot_id = uniprot_re.match(protein[prot_start])
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187 if prot_id:
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188 proteins.append(prot_id.group())
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189 else:
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190 prot_ids = protein[prot_start].split("|")
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191 for prot_id in prot_ids:
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192 if "_HUMAN" in prot_id:
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193 proteins.append(prot_id)
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194 elif "_YEAST" in prot_id:
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195 proteins.append(prot_id)
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196 elif "_MOUSE" in prot_id:
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197 proteins.append(prot_id)
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198 else:
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199 print "Accession must be uniprot ID or gene"
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200 return ReturnValue2(data, proteins, header)
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201
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202
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203 def make_inter(Scaffold_input):
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204 bait = readtab(baitfile)
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205 data = read_Scaffold(Scaffold_input).data
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206 header = read_Scaffold(Scaffold_input).header
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207 proteins = read_Scaffold(Scaffold_input).proteins
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208 bait_index = []
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209 for bait_line in bait:
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210 bait_index.append(header.index(bait_line[0]))
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bornea
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211 # Find just the baits defined in bait file.
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bornea
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212 with open('inter.txt', 'w') as inter_file:
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213 a = 0; l = 0
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bornea
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214 for bb in bait:
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215 for lst in data:
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216 inter_file.write(header[bait_index[l]] + '\t' + bb[1] + '\t' + proteins[a] + '\t'
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bornea
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217 + lst[bait_index[l]] + '\n')
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bornea
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218 a += 1
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bornea
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219 if a == len(proteins):
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220 a = 0; l += 1
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221
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222
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223 def make_prey(Scaffold_input):
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224 proteins = read_Scaffold(Scaffold_input).proteins
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225 output_file = open("prey.txt", 'w')
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bornea
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226 for protein in proteins:
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227 protein = protein.replace("\n", "")
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228 # Remove \n for input into function.
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229 protein = protein.replace("\r", "")
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230 # Ditto for \r.
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231 seq = get_info(protein).seqlength
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232 GN = get_info(protein).genename
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233 if seq != 'NA':
33
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234 if GN != 'NA':
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235 output_file.write(protein + "\t" + str(seq) + "\t" + str(GN) + "\n")
4
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bornea
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236 output_file.close()
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237
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238
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239 def no_error_inter(Scaffold_input):
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240 # Remake inter file without protein errors from Uniprot.
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bornea
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241 err = readtab("error proteins.txt")
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bornea
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242 bait = readtab(baitfile)
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bornea
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243 data = read_Scaffold(Scaffold_input).data
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bornea
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244 header = read_Scaffold(Scaffold_input).header
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bornea
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245 bait_index = []
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bornea
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246 for bait_line in bait:
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bornea
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247 bait_index.append(header.index(bait_line[0]))
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bornea
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248 proteins = read_Scaffold(Scaffold_input).proteins
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bornea
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249 errors = []
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bornea
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250 for e in err:
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bornea
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251 errors.append(e[0])
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bornea
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252 with open('inter.txt', 'w') as y:
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bornea
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253 l = 0; a = 0
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bornea
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254 for bb in bait:
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bornea
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255 for lst in data:
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bornea
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256 if proteins[a] not in errors:
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bornea
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257 y.write(header[bait_index[l]] + '\t' + bb[1] + '\t' + proteins[a] + '\t'
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bornea
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258 + lst[bait_index[l]] + '\n')
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bornea
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259 a += 1
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bornea
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260 if a == len(proteins):
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bornea
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261 l += 1; a = 0
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bornea
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262
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bornea
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263
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bornea
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264 def bait_check(bait, Scaffold_input):
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bornea
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265 # Check that bait names share Scaffold header titles.
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bornea
parents:
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266 bait_in = readtab(bait)
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bornea
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267 header = read_Scaffold(Scaffold_input).header
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bornea
parents:
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268 for i in bait_in:
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bornea
parents:
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269 if i[0] not in header:
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bornea
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270 sys.exit("Bait must share header titles with Scaffold output")
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bornea
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271
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bornea
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272 if __name__ == '__main__':
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bornea
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273 main(infile, baitfile)
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bornea
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274
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bornea
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275 os.rename("inter.txt", sys.argv[4])
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bornea
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276 os.rename("bait.txt", sys.argv[7])