EMBOSS: checktrans

checktrans

Wiki

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Function

Reports STOP codons and ORF statistics of a protein

Description

checktrans reads a protein sequence containing stop characters and writes a statistical report of any open reading frames (ORFs) that are greater than a minimum size. An open reading frame is defined as a continuous region of protein sequence with no stop characters. The default minimum ORF size is 100 residues. In addition to the report output, any ORF sequences are written to file and features of those sequences written to a separate file.

Usage

Here is a sample session with checktrans

% checktrans Reports STOP codons and ORF statistics of a protein Input protein sequence(s): paamir.pep Minimum ORF Length to report [100]: Output file [paamir_1.checktrans]: output sequence(s) [paamir_1.fasta]: Features output [paamir_1.gff]:

Go to the input files for this example
Go to the output files for this example

Command line arguments

Reports STOP codons and ORF statistics of a protein
Version: EMBOSS:6.3.0

   Standard (Mandatory) qualifiers:
  [-sequence]          seqall     Protein sequence(s) filename and optional
                                  format, or reference (input USA)
   -orfml              integer    [100] Minimum ORF Length to report (Integer
                                  1 or more)
  [-outfile]           outfile    [*.checktrans] Output file name
  [-outseq]            seqoutall  [.] Sequence file to hold
                                  output ORF sequences
  [-outfeat]           featout    [unknown.gff] File for output features

   Additional (Optional) qualifiers:
   -[no]addlast        boolean    [Y] An asterisk in the protein sequence
                                  indicates the position of a STOP codon.
                                  Checktrans assumes that all ORFs end in a
                                  STOP codon. Forcing the sequence to end with
                                  an asterisk, if there is not one there
                                  already, makes checktrans treat the end as a
                                  potential ORF. If an asterisk is added, it
                                  is not included in the reported count of
                                  STOPs.

   Advanced (Unprompted) qualifiers: (none)
   Associated qualifiers:

   "-sequence" associated qualifiers
   -sbegin1            integer    Start of each sequence to be used
   -send1              integer    End of each sequence to be used
   -sreverse1          boolean    Reverse (if DNA)
   -sask1              boolean    Ask for begin/end/reverse
   -snucleotide1       boolean    Sequence is nucleotide
   -sprotein1          boolean    Sequence is protein
   -slower1            boolean    Make lower case
   -supper1            boolean    Make upper case
   -sformat1           string     Input sequence format
   -sdbname1           string     Database name
   -sid1               string     Entryname
   -ufo1               string     UFO features
   -fformat1           string     Features format
   -fopenfile1         string     Features file name

   "-outfile" associated qualifiers
   -odirectory2        string     Output directory

   "-outseq" associated qualifiers
   -osformat3          string     Output seq format
   -osextension3       string     File name extension
   -osname3            string     Base file name
   -osdirectory3       string     Output directory
   -osdbname3          string     Database name to add
   -ossingle3          boolean    Separate file for each entry
   -oufo3              string     UFO features
   -offormat3          string     Features format
   -ofname3            string     Features file name
   -ofdirectory3       string     Output directory

   "-outfeat" associated qualifiers
   -offormat4          string     Output feature format
   -ofopenfile4        string     Features file name
   -ofextension4       string     File name extension
   -ofdirectory4       string     Output directory
   -ofname4            string     Base file name
   -ofsingle4          boolean    Separate file for each entry

   General qualifiers:
   -auto               boolean    Turn off prompts
   -stdout             boolean    Write first file to standard output
   -filter             boolean    Read first file from standard input, write
                                  first file to standard output
   -options            boolean    Prompt for standard and additional values
   -debug              boolean    Write debug output to program.dbg
   -verbose            boolean    Report some/full command line options
   -help               boolean    Report command line options and exit. More
                                  information on associated and general
                                  qualifiers can be found with -help -verbose
   -warning            boolean    Report warnings
   -error              boolean    Report errors
   -fatal              boolean    Report fatal errors
   -die                boolean    Report dying program messages
   -version            boolean    Report version number and exit

Qualifier Type Description Allowed values Default

Standard (Mandatory) qualifiers

[-sequence]
(Parameter 1) seqall Protein sequence(s) filename and optional format, or reference (input USA) Readable sequence(s) Required

-orfml integer Minimum ORF Length to report Integer 1 or more 100

[-outfile]
(Parameter 2) outfile Output file name Output file <*>.checktrans

[-outseq]
(Parameter 3) seqoutall Sequence file to hold output ORF sequences Writeable sequence(s) <*>.format

[-outfeat]
(Parameter 4) featout File for output features Writeable feature table unknown.gff

Additional (Optional) qualifiers

-[no]addlast boolean An asterisk in the protein sequence indicates the position of a STOP codon. Checktrans assumes that all ORFs end in a STOP codon. Forcing the sequence to end with an asterisk, if there is not one there already, makes checktrans treat the end as a potential ORF. If an asterisk is added, it is not included in the reported count of STOPs. Boolean value Yes/No Yes

Advanced (Unprompted) qualifiers

(none)

Associated qualifiers

"-sequence" associated seqall qualifiers

-sbegin1
-sbegin_sequence integer Start of each sequence to be used Any integer value 0

-send1
-send_sequence integer End of each sequence to be used Any integer value 0

-sreverse1
-sreverse_sequence boolean Reverse (if DNA) Boolean value Yes/No N

-sask1
-sask_sequence boolean Ask for begin/end/reverse Boolean value Yes/No N

-snucleotide1
-snucleotide_sequence boolean Sequence is nucleotide Boolean value Yes/No N

-sprotein1
-sprotein_sequence boolean Sequence is protein Boolean value Yes/No N

-slower1
-slower_sequence boolean Make lower case Boolean value Yes/No N

-supper1
-supper_sequence boolean Make upper case Boolean value Yes/No N

-sformat1
-sformat_sequence string Input sequence format Any string

-sdbname1
-sdbname_sequence string Database name Any string

-sid1
-sid_sequence string Entryname Any string

-ufo1
-ufo_sequence string UFO features Any string

-fformat1
-fformat_sequence string Features format Any string

-fopenfile1
-fopenfile_sequence string Features file name Any string

"-outfile" associated outfile qualifiers

-odirectory2
-odirectory_outfile string Output directory Any string

"-outseq" associated seqoutall qualifiers

-osformat3
-osformat_outseq string Output seq format Any string

-osextension3
-osextension_outseq string File name extension Any string

-osname3
-osname_outseq string Base file name Any string

-osdirectory3
-osdirectory_outseq string Output directory Any string

-osdbname3
-osdbname_outseq string Database name to add Any string

-ossingle3
-ossingle_outseq boolean Separate file for each entry Boolean value Yes/No N

-oufo3
-oufo_outseq string UFO features Any string

-offormat3
-offormat_outseq string Features format Any string

-ofname3
-ofname_outseq string Features file name Any string

-ofdirectory3
-ofdirectory_outseq string Output directory Any string

"-outfeat" associated featout qualifiers

-offormat4
-offormat_outfeat string Output feature format Any string

-ofopenfile4
-ofopenfile_outfeat string Features file name Any string

-ofextension4
-ofextension_outfeat string File name extension Any string

-ofdirectory4
-ofdirectory_outfeat string Output directory Any string

-ofname4
-ofname_outfeat string Base file name Any string

-ofsingle4
-ofsingle_outfeat boolean Separate file for each entry Boolean value Yes/No N

General qualifiers

-auto boolean Turn off prompts Boolean value Yes/No N

-stdout boolean Write first file to standard output Boolean value Yes/No N

-filter boolean Read first file from standard input, write first file to standard output Boolean value Yes/No N

-options boolean Prompt for standard and additional values Boolean value Yes/No N

-debug boolean Write debug output to program.dbg Boolean value Yes/No N

-verbose boolean Report some/full command line options Boolean value Yes/No Y

-help boolean Report command line options and exit. More information on associated and general qualifiers can be found with -help -verbose Boolean value Yes/No N

-warning boolean Report warnings Boolean value Yes/No Y

-error boolean Report errors Boolean value Yes/No Y

-fatal boolean Report fatal errors Boolean value Yes/No Y

-die boolean Report dying program messages Boolean value Yes/No Y

-version boolean Report version number and exit Boolean value Yes/No N

Qualifier	Type	Description	Allowed values	Default
Standard (Mandatory) qualifiers
[-sequence] (Parameter 1)	seqall	Protein sequence(s) filename and optional format, or reference (input USA)	Readable sequence(s)	Required
-orfml	integer	Minimum ORF Length to report	Integer 1 or more	100
[-outfile] (Parameter 2)	outfile	Output file name	Output file	<>*.checktrans
[-outseq] (Parameter 3)	seqoutall	Sequence file to hold output ORF sequences	Writeable sequence(s)	<>*.format
[-outfeat] (Parameter 4)	featout	File for output features	Writeable feature table	unknown.gff
Additional (Optional) qualifiers
-[no]addlast	boolean	An asterisk in the protein sequence indicates the position of a STOP codon. Checktrans assumes that all ORFs end in a STOP codon. Forcing the sequence to end with an asterisk, if there is not one there already, makes checktrans treat the end as a potential ORF. If an asterisk is added, it is not included in the reported count of STOPs.	Boolean value Yes/No	Yes
Advanced (Unprompted) qualifiers
(none)
Associated qualifiers
"-sequence" associated seqall qualifiers
-sbegin1 -sbegin_sequence	integer	Start of each sequence to be used	Any integer value	0
-send1 -send_sequence	integer	End of each sequence to be used	Any integer value	0
-sreverse1 -sreverse_sequence	boolean	Reverse (if DNA)	Boolean value Yes/No	N
-sask1 -sask_sequence	boolean	Ask for begin/end/reverse	Boolean value Yes/No	N
-snucleotide1 -snucleotide_sequence	boolean	Sequence is nucleotide	Boolean value Yes/No	N
-sprotein1 -sprotein_sequence	boolean	Sequence is protein	Boolean value Yes/No	N
-slower1 -slower_sequence	boolean	Make lower case	Boolean value Yes/No	N
-supper1 -supper_sequence	boolean	Make upper case	Boolean value Yes/No	N
-sformat1 -sformat_sequence	string	Input sequence format	Any string
-sdbname1 -sdbname_sequence	string	Database name	Any string
-sid1 -sid_sequence	string	Entryname	Any string
-ufo1 -ufo_sequence	string	UFO features	Any string
-fformat1 -fformat_sequence	string	Features format	Any string
-fopenfile1 -fopenfile_sequence	string	Features file name	Any string
"-outfile" associated outfile qualifiers
-odirectory2 -odirectory_outfile	string	Output directory	Any string
"-outseq" associated seqoutall qualifiers
-osformat3 -osformat_outseq	string	Output seq format	Any string
-osextension3 -osextension_outseq	string	File name extension	Any string
-osname3 -osname_outseq	string	Base file name	Any string
-osdirectory3 -osdirectory_outseq	string	Output directory	Any string
-osdbname3 -osdbname_outseq	string	Database name to add	Any string
-ossingle3 -ossingle_outseq	boolean	Separate file for each entry	Boolean value Yes/No	N
-oufo3 -oufo_outseq	string	UFO features	Any string
-offormat3 -offormat_outseq	string	Features format	Any string
-ofname3 -ofname_outseq	string	Features file name	Any string
-ofdirectory3 -ofdirectory_outseq	string	Output directory	Any string
"-outfeat" associated featout qualifiers
-offormat4 -offormat_outfeat	string	Output feature format	Any string
-ofopenfile4 -ofopenfile_outfeat	string	Features file name	Any string
-ofextension4 -ofextension_outfeat	string	File name extension	Any string
-ofdirectory4 -ofdirectory_outfeat	string	Output directory	Any string
-ofname4 -ofname_outfeat	string	Base file name	Any string
-ofsingle4 -ofsingle_outfeat	boolean	Separate file for each entry	Boolean value Yes/No	N
General qualifiers
-auto	boolean	Turn off prompts	Boolean value Yes/No	N
-stdout	boolean	Write first file to standard output	Boolean value Yes/No	N
-filter	boolean	Read first file from standard input, write first file to standard output	Boolean value Yes/No	N
-options	boolean	Prompt for standard and additional values	Boolean value Yes/No	N
-debug	boolean	Write debug output to program.dbg	Boolean value Yes/No	N
-verbose	boolean	Report some/full command line options	Boolean value Yes/No	Y
-help	boolean	Report command line options and exit. More information on associated and general qualifiers can be found with -help -verbose	Boolean value Yes/No	N
-warning	boolean	Report warnings	Boolean value Yes/No	Y
-error	boolean	Report errors	Boolean value Yes/No	Y
-fatal	boolean	Report fatal errors	Boolean value Yes/No	Y
-die	boolean	Report dying program messages	Boolean value Yes/No	Y
-version	boolean	Report version number and exit	Boolean value Yes/No	N

Input file format

This program reads the USA of a protein sequence with STOP codons in it.

Input files for usage example

File: paamir.pep

>PAAMIR_1 Pseudomonas aeruginosa amiC and amiR gene for aliphatic amidase regulation
GTAGRASARSPPAGRRELHDLPGEPGARAGSLRTALSDSHRRGNGWDRTRSGR*SACCSP
KPASPPISSARTRMAHCSRSSN*TARAASAVARSKRCPRTPAATRTAIGCAPRTSFATGG
YGSSWAATCRTRARR*CRWSSAPTRCSATRPPTRASSIRRTSSTAVRRRTRTVRRWRRT*
FATTASGWCSSARTTSIRGKATM*CATCIASTAARCSRKSTFRCIPPTTTCSAPSSASTR
RAPTWSSPPWWAPAPPSCIAPSPVATATAGGRRSPA*PPARRRWRRWRVTWQRGRWWSRL
TSPASIRPPAGPSSRPAMVSSRRTRPSPPGPRRPTGRPCCSAAPRRPQATGGWKTCSGTC
TTSTSTRHRGRSGWSARTTTAACLRASRKSMRAACSRSAGSRPNRFAPTLMSSCITSTTG
PPAWAGDRSHERQLAARQPARVAGAGPQPAGGGQRRPGLAADPHRLFGAPVLAAAGSLRR
AGGRGLHQHFPEWPPRRDRCAARRRDSAHYPGGAGGVRKPRGALADHRAGVPRRDHPAAR
CPPGAACAGIGAAHQRGNGEAEAEDRAAPGPHRRPGPDQPGQGVADAAPWLGRARGAPAP
VAGSDEAARADPEDRSGVAGKRAVRLSDPGRPEQ*QEGYRHHAGTGSAVRWRGAVSQCRL
VAGQDQRSGGGGDQLPGRRAERLRRVLPDLFRSSRAGLAEGRSADPAIRFYLSVGGRQPV
PRX

Output file format

This program writes three files: the ORF report file (x13776_1.checktrans), the output sequence file (x13776_1.fasta) and the feature file (x13776_1.out3) which is in GFF format by default.

The ORF report file gives the numeric count of the ORF, the position of the terminating STOP codon, the length of the ORF, its start and end positions and the name of the sequence it has been written out as.

The name of the output sequences is constructed from the name of the input sequence followed by an underscore and then the numeric count of the ORF (e.g. 'X13776_1_7').

Output files for usage example

File: paamir_1.checktrans



CHECKTRANS of PAAMIR_1 from 1 to 724

	ORF#	Pos	Len	ORF Range	Sequence name

	7	635	357	278-634	PAAMIR_1_7

	Total STOPS:     7

File: paamir_1.fasta

>PAAMIR_1_7
PPARRRWRRWRVTWQRGRWWSRLTSPASIRPPAGPSSRPAMVSSRRTRPSPPGPRRPTGR
PCCSAAPRRPQATGGWKTCSGTCTTSTSTRHRGRSGWSARTTTAACLRASRKSMRAACSR
SAGSRPNRFAPTLMSSCITSTTGPPAWAGDRSHERQLAARQPARVAGAGPQPAGGGQRRP
GLAADPHRLFGAPVLAAAGSLRRAGGRGLHQHFPEWPPRRDRCAARRRDSAHYPGGAGGV
RKPRGALADHRAGVPRRDHPAARCPPGAACAGIGAAHQRGNGEAEAEDRAAPGPHRRPGP
DQPGQGVADAAPWLGRARGAPAPVAGSDEAARADPEDRSGVAGKRAVRLSDPGRPEQ

File: paamir_1.gff

##gff-version 3
##sequence-region PAAMIR_1 1 634
#!Date 2010-01-15
#!Type Protein
#!Source-version EMBOSS 6.3.0
PAAMIR_1	checktrans	polypeptide_region	278	634	0.000	+	.	ID="PAAMIR_1.1"

Data files

None.

Notes

A reading frame is a relative position in DNA or RNA from which contiguous, non-overlapping codons are read during transcription. There are 3 possible reading frames in mRNA strand and six in a double stranded DNA where transcription is possible from either strand. An open reading frame (ORF) is a reading frame that begins with a start codon and includes the subsequent transcribed region, stopping immediately before the first stop codon.

Where you have a nucleotide sequence for analysis, it should first be translated by using transeq. The transeq output file will then serve as the input to checktrans. Note that if you have only translated a nucleic sequence in one frame, checktrans will miss possible ORFs in the other frames. You must provide checktrans with translations in all three (six?) frames in order for it to be effective at finding all possible ORFs.

References

None.

Warnings

None.

Diagnostic Error Messages

None.

Exit status

This program always exits with a status of 0.

Known bugs

None.

Program name	Description
backtranambig	Back-translate a protein sequence to ambiguous nucleotide sequence
backtranseq	Back-translate a protein sequence to a nucleotide sequence
charge	Draw a protein charge plot
compseq	Calculate the composition of unique words in sequences
emowse	Search protein sequences by digest fragment molecular weight
freak	Generate residue/base frequency table or plot
iep	Calculate the isoelectric point of proteins
mwcontam	Find weights common to multiple molecular weights files
mwfilter	Filter noisy data from molecular weights file
octanol	Draw a White-Wimley protein hydropathy plot
pepinfo	Plot amino acid properties of a protein sequence in parallel
pepstats	Calculates statistics of protein properties
pepwindow	Draw a hydropathy plot for a protein sequence
pepwindowall	Draw Kyte-Doolittle hydropathy plot for a protein alignment
wordcount	Count and extract unique words in molecular sequence(s)

Author(s)

Rodrigo Lopez
European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SD, UK

Please report all bugs to the EMBOSS bug team (emboss-bug © emboss.open-bio.org) not to the original author. and modified by Gary Williams formerly at:
MRC Rosalind Franklin Centre for Genomics Research Wellcome Trust Genome Campus, Hinxton, Cambridge, CB10 1SB, UK

Please report all bugs to the EMBOSS bug team (emboss-bug © emboss.open-bio.org) not to the original author. to output the sequence data to a single file in the conventional EMBOSS style.

History

Completed 24 Feb 2000 - Rodrigo Lopez

Modified 2 March 2000 - Gary Williams

Target users

This program is intended to be used by everyone and everything, from naive users to embedded scripts.

Comments

None

Wiki

Function

Description

Usage

Command line arguments

Input file format

Input files for usage example

File: paamir.pep

Output file format

Output files for usage example

File: paamir_1.checktrans

File: paamir_1.fasta

File: paamir_1.gff

Data files

Notes

References

Warnings

Diagnostic Error Messages

Exit status

Known bugs

See also

Author(s)

History

Target users

Comments