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1 gb2
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2 Function
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3
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4 Calculate strand bias of bacterial genome using B2 index
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5
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6 Description
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7
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8 gb2 calculates strand bias of bacterial genome using B2 index,
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9 proposed by Lobry and Sueoka(2002). Basic idea of B2 index is to calculate
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10 the distance from neutral parity state (0.5, 0.5), when the bias of
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11 the coding regions is plotted in a coordinate system with axes representing
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12 G/(G+C) and A/(A+T), using the third codon position of genes. This index
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13 measures the degree of transcription- and translation-associated effects of
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14 bias from Chargaff's second parity rule.
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15
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16 G-language SOAP service is provided by the
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17 Institute for Advanced Biosciences, Keio University.
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18 The original web service is located at the following URL:
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19
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20 http://www.g-language.org/wiki/soap
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21
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22 WSDL(RPC/Encoded) file is located at:
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23
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24 http://soap.g-language.org/g-language.wsdl
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25
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26 Documentation on G-language Genome Analysis Environment methods are
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27 provided at the Document Center
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28
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29 http://ws.g-language.org/gdoc/
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30
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31 Usage
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32
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33 Here is a sample session with gb2
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34
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35 % gb2 refseqn:NC_000913
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36 Calculate strand bias of bacterial genome using B2 index
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37 Program compseq output file [nc_000913.gb2]:
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38
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39 Go to the input files for this example
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40 Go to the output files for this example
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41
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42 Command line arguments
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43
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44 Standard (Mandatory) qualifiers:
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45 [-sequence] seqall Nucleotide sequence(s) filename and optional
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46 format, or reference (input USA)
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47 [-outfile] outfile [*.gb2] Program compseq output file
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48
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49 Additional (Optional) qualifiers: (none)
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50 Advanced (Unprompted) qualifiers:
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51 -[no]accid boolean [Y] Include to use sequence accession ID as
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52 query
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53
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54 Associated qualifiers:
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55
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56 "-sequence" associated qualifiers
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57 -sbegin1 integer Start of each sequence to be used
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58 -send1 integer End of each sequence to be used
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59 -sreverse1 boolean Reverse (if DNA)
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60 -sask1 boolean Ask for begin/end/reverse
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61 -snucleotide1 boolean Sequence is nucleotide
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62 -sprotein1 boolean Sequence is protein
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63 -slower1 boolean Make lower case
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64 -supper1 boolean Make upper case
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65 -scircular1 boolean Sequence is circular
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66 -sformat1 string Input sequence format
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67 -iquery1 string Input query fields or ID list
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68 -ioffset1 integer Input start position offset
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69 -sdbname1 string Database name
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70 -sid1 string Entryname
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71 -ufo1 string UFO features
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72 -fformat1 string Features format
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73 -fopenfile1 string Features file name
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74
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75 "-outfile" associated qualifiers
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76 -odirectory2 string Output directory
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77
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78 General qualifiers:
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79 -auto boolean Turn off prompts
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80 -stdout boolean Write first file to standard output
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81 -filter boolean Read first file from standard input, write
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82 first file to standard output
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83 -options boolean Prompt for standard and additional values
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84 -debug boolean Write debug output to program.dbg
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85 -verbose boolean Report some/full command line options
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86 -help boolean Report command line options and exit. More
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87 information on associated and general
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88 qualifiers can be found with -help -verbose
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89 -warning boolean Report warnings
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90 -error boolean Report errors
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91 -fatal boolean Report fatal errors
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92 -die boolean Report dying program messages
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93 -version boolean Report version number and exit
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94
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95 Input file format
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96
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97 The database definitions for following commands are available at
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98 http://soap.g-language.org/kbws/embossrc
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99
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100 gb2 reads one or more nucleotide sequences.
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101
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102 Output file format
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103
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104 The output from gb2 is to a plain text file.
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105
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106 File: nc_000913.gb2
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107
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108 Sequence: NC_000913 B2: 0.0919769585775651
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109
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110
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111 Data files
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112
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113 None.
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114
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115 Notes
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116
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117 None.
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118
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119 References
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120
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121 Lobry JR and Sueoka N (2002) Asymmetric directional mutation pressures in
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122 bacteria, Genome Biology, 3(10):0058
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123
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124 Arakawa, K., Mori, K., Ikeda, K., Matsuzaki, T., Konayashi, Y., and
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125 Tomita, M. (2003) G-language Genome Analysis Environment: A Workbench
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126 for Nucleotide Sequence Data Mining, Bioinformatics, 19, 305-306.
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127
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128 Arakawa, K. and Tomita, M. (2006) G-language System as a Platform for
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129 large-scale analysis of high-throughput omics data, J. Pest Sci.,
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130 31, 7.
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131
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132 Arakawa, K., Kido, N., Oshita, K., Tomita, M. (2010) G-language Genome
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133 Analysis Environment with REST and SOAP Web Service Interfaces,
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134 Nucleic Acids Res., 38, W700-W705.
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135
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136 Warnings
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137
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138 None.
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139
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140 Diagnostic Error Messages
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141
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142 None.
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143
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144 Exit status
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145
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146 It always exits with a status of 0.
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147
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148 Known bugs
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149
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150 None.
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151
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152 See also
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153
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154 gb1 Calculate strand bias of bacterial genome using B1 index
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155 gdeltagcskew Calculate strand bias of bacterial genome using delta GC skew
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156 index
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157 ggcsi GC Skew Index: an index for strand-specefic mutational bias
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158 gldabias Calculate strand bias of bacterial genome using linear
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159 discriminant analysis (LDA)
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160
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161 Author(s)
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162
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163 Hidetoshi Itaya (celery@g-language.org)
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164 Institute for Advanced Biosciences, Keio University
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165 252-0882 Japan
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166
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167 Kazuharu Arakawa (gaou@sfc.keio.ac.jp)
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168 Institute for Advanced Biosciences, Keio University
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169 252-0882 Japan
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170
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171 History
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172
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173 2012 - Written by Hidetoshi Itaya
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174 2013 - Fixed by Hidetoshi Itaya
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175
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176 Target users
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177
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178 This program is intended to be used by everyone and everything, from
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179 naive users to embedded scripts.
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180
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181 Comments
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182
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183 None.
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184
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