Installation
=============
To install FragGeneScan, please follow the steps below:

1. Untar the downloaded file "FragGeneScan.tar.gz". This will automatically generate the directory "FragGeneScan".

2. Make sure that you also have a C compiler such as "gcc" and perl interpreter.

3. Run "makefile" to compile and build excutable "FragGeneScan"
	make clean
	make fgs


Running the program
====================
1.  To run FragGeneScan, 

./run_FragGeneScan.pl -genome=[seq_file_name] -out=[output_file_name] -complete=[1 or 0] -train=[train_file_name]

[seq_file_name]: sequence file name including the full path
[output_file_name]: output file name including the full path
[whole_genome]: 1 if the sequence file has complete genomic sequences
		0 if the sequence file has short sequence reads
[train_file_name]: file name that contains model parameters; this file should be in the "train" directory. 
		   Note that four files containing model parameters already exist in the "train" directory. 
		   [complete] for complete genomic sequences or short sequence reads without sequencing error
		   [sanger_5] for Sanger sequencing reads with about 0.5% error rate
		   [sanger_10] for Sanger sequencing reads with about 1% error rate
		   [454_5] for 454 pyrosequencing reads with about 0.5% error rate
		   [454_10] for 454 pyrosequencing reads with about 1% error rate
		   [454_30] for 454 pyrosequencing reads with about 3% error rate
		   [illumina_5] for Illumina sequencing reads with about 0.5% error rate
		   [illumina_10] for Illumina sequencing reads with about 1% error rate



2. To test FragGeneScan with a complete genomic sequence,

./run_FragGeneScan.pl -genome=./example/NC_000913.fna -out=./example/NC_000913.test  -complete=1  -train=complete

[NC_000913.fna]: this sequence file has the complete genomic sequence of E.coli



3. To test FragGeneScan with sequencing reads,

./run_FragGeneScan.pl -genome=./example/NC_000913-454.fna -out=./example/NC_000913-454.test  -complete=0  -train=454_10

[NC_000913-454.fna]: this sequence file has simulated reads (pyrosequencing, average length = 400 bp and sequencing error = 1%) generated using Metasim




Output
============
Upon completion, FragGeneScan generates three files. 

1. The first file is "[output_file_name].out", which lists the coordinates of putative genes. This file consists of five columns (start position, end position, strand, frame, score).  For example,

>gi|49175990|ref|NC_000913.2| Escherichia coli str. K-12 substr. MG1655, complete genome
108     440     -       3       1.378688
337     2799    +       1       1.303498
2801    3733    +       2       1.317386
3734    5020    +       2       1.293573
5234    5530    +       2       1.354725
5683    6459    -       1       1.290816
6529    7959    -       1       1.326412
8238    9191    +       3       1.286832
9306    9893    +       3       1.317067


2. The second file is  '[output_file_name].ffn", which lists nucleotide sequences corresponding to the putative genes in "[output_file_name].out". For example,

>gi|49175990|ref|NC_000913.2| Escherichia coli str. K-12 substr. MG1655, complete genome start=108 e
nd=338 strand=-
GTTGTTACCTCGTTACCTTTGGTCGAAAAAAAAAGCCCGCACTGTCAGGTGCGGGCTTTTTTCTGTGTTTCCTGTACGCGTCAGCCCGCACCGTTACCTG
TGGTAATGGTGATGGTGGTGGTAATGGTGGTGCTAATGCGTTTCATGGATGTTGTGTACTCTGTAATTTTTATCTGTCTGTGCGCTATGCCTATATTGGT
TAAAGTATTTAGTGACCTAAGTCAA
>gi|49175990|ref|NC_000913.2| Escherichia coli str. K-12 substr. MG1655, complete genome start=343 e
nd=2799 strand=+
TTGAAGTTCGGCGGTACATCAGTGGCAAATGCAGAACGTTTTCTGCGTGTTGCCGATATTCTGGAAAGCAATGCCAGGCAGGGGCAGGTGGCCACCGTCC
TCTCTGCCCCCGCCAAAATCACCAACCACCTGGTGGCGATGATTGAAAAAACCATTAGCGGCCAGGATGCTTTACCCAATATCAGCGATGCCGAACGTAT
TTTTGCCGAACTTTTGACGGGACTCGCCGCCGCCCAGCCGGGGTTCCCGCTGGCGCAATTGAAAACTTTCGTCGATCAGGAATTTGCCCAAATAAAACAT
GTCCTGCATGGCATTAGTTTGTTGGGGCAGTGCCCGGATAGCATCAACGCTGCGCTGATTTGCCGTGGCGAGAAAATGTCGATCGCCATTATGGCCGGCG


3. The third file is '[output_file_name].faa", which lists amino acid sequences corresponding to the putative genes in "[output_file_name].out". For example,

>gi|49175990|ref|NC_000913.2| Escherichia coli str. K-12 substr. MG1655, complete genome start=108 e
nd=338 strand=-
VVTSLPLVEKKSPHCQVRAFFCVSCTRQPAPLPVVMVMVVVMVVLMRFMDVVYSVIFICLCAMPILVKVFSDLSQ
>gi|49175990|ref|NC_000913.2| Escherichia coli str. K-12 substr. MG1655, complete genome start=343 e
nd=2799 strand=+
LKFGGTSVANAERFLRVADILESNARQGQVATVLSAPAKITNHLVAMIEKTISGQDALPNISDAERIFAELLTGLAAAQPGFPLAQLKTFVDQEFAQIKH
VLHGISLLGQCPDSINAALICRGEKMSIAIMAGVLEARGHNVTVIDPVEKLLAVGHYLESTVDIAESTRRIAASRIPADHMVLMAGFTAGNEKGELVVLG
RNGSDYSAAVLAACLRADCCEIWTDVDGVYTCDPRQVPDARLLKSMSYQEAMELSYFGAKVLHPRTITPIAQFQIPCLIKNTGNPQAPGTLIGASRDEDE
LPVKGISNLNNMAMFSVSGPGMKGMVGMAARVFAAMSRARISVVLITQSSSEYSISFCVPQSDCVRAERAMQEEFYLELKEGLLEPLAVTERLAIISVVG
DGMRTLRGISAKFFAALARANINIVAIAQGSSERSISVVVNNDDATTGVRVTHQMLFNTDQVIEVFVIGVGGVGGALLEQLKRQQSWLKNKHIDLRVCGV
ANSKALLTNVHGLNLENWQEELAQAKEPFNLGRLIRLVKEYHLLNPVIVDCTSSQAVADQYADFLREGFHVVTPNKKANTSSMDYYHQLRYAAEKSRRKF
LYDTNVGAGLPVIENLQNLLNAGDELMKFSGILSGSLSYIFGKLDEGMSFSEATTLAREMGYTEPDPRDDLSGMDVARKLLILARETGRELELADIEIEP
VLPAEFNAEGDVAAFMANLSQLDDLFAARVAKARDEGKVLRYVGNIDEDGVCRVKIAEVDGNDPLFKVKNGENALAFYSHYYQPLPLVLRGYGAGNDVTA
AGVFADLLRTLSWKLGV
>gi|49175990|ref|NC_000913.2| Escherichia coli str. K-12 substr. MG1655, complete genome start=2801
end=3733 strand=+
VKVYAPASSANMSVGFDVLGAAVTPVDGALLGDVVTVEAAETFSLNNLGRFADKLPSEPRENIVYQCWERFCQELGKQIPVAMTLEKNMPIGSGLGSSAC
SVVAALMAMNEHCGKPLNDTRLLALMGELEGRISGSIHYDNVAPCFLGGMQLMIEENDIISQQVPGFDEWLWVLAYPGIKVSTAEARAILPAQYRRQDCI
AHGRHLAGFIHACYSRQPELAAKLMKDVIAEPYRERLLPGFRQARQAVAEIGAVASGISGSGPTLFALCDKPETAQRVADWLGKNYLQNQEGFVHICRLD
TAGARVLEN



License
============
Copyright (C) 2010 Mina Rho, Yuzhen Ye and Haixu Tang.
You may redistribute this software under the terms of the GNU General Public License.