fuzzpro

 

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Function

Search for patterns in protein sequences

Description

fuzznuc searches for a specified PROSITE-style pattern in protein sequences. Such patterns are specifications of a (typically short) length of sequence to be found. They can specify a search for an exact sequence or they can allow various ambiguities, matches to variable lengths of sequence and repeated subsections of the sequence. One or more protein sequences are read from file. The output is a standard EMBOSS report file that includes data such as location and score of any matches.

Algorithm

fuzznuc intelligently selects the optimum searching algorithm to use, depending on the complexity of the search pattern specified.

Usage

Here is a sample session with fuzzpro


% fuzzpro 
Search for patterns in protein sequences
Input protein sequence(s): tsw:*
Search pattern: [FY]-[LIV]-G-[DE]-E-A-Q-x-[RKQ](2)-G
Output report [12s1_arath.fuzzpro]: 

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

Command line arguments

Search for patterns in protein sequences
Version: EMBOSS:6.2.0

   Standard (Mandatory) qualifiers:
  [-sequence]          seqall     Protein sequence(s) filename and optional
                                  format, or reference (input USA)
   -pattern            pattern    The standard IUPAC one-letter codes for the
                                  amino acids are used.
                                  The symbol 'x' is used for a position where
                                  any amino acid is accepted.
                                  Ambiguities are indicated by listing the
                                  acceptable amino acids for a given position,
                                  between square parentheses '[ ]'. For
                                  example: [ALT] stands for Ala or Leu or Thr.
                                  Ambiguities are also indicated by listing
                                  between a pair of curly brackets '{ }' the
                                  amino acids that are not accepted at a given
                                  position. For example: {AM} stands for any
                                  amino acid except Ala and Met.
                                  Each element in a pattern is separated from
                                  its neighbor by a '-'. (Optional in
                                  fuzzpro).
                                  Repetition of an element of the pattern can
                                  be indicated by following that element with
                                  a numerical value or a numerical range
                                  between parenthesis. Examples: x(3)
                                  corresponds to x-x-x, x(2,4) corresponds to
                                  x-x or x-x-x or x-x-x-x.
                                  When a pattern is restricted to either the
                                  N- or C-terminal of a sequence, that pattern
                                  either starts with a '<' symbol or
                                  respectively ends with a '>' symbol.
                                  A period ends the pattern. (Optional in
                                  fuzzpro).
                                  For example, [DE](2)HS{P}X(2)PX(2,4)C
  [-outfile]           report     [*.fuzzpro] Output report file name

   Additional (Optional) qualifiers: (none)
   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

   "-pattern" associated qualifiers
   -pformat            string     File format
   -pmismatch          integer    Pattern mismatch
   -pname              string     Pattern base name

   "-outfile" associated qualifiers
   -rformat2           string     Report format
   -rname2             string     Base file name
   -rextension2        string     File name extension
   -rdirectory2        string     Output directory
   -raccshow2          boolean    Show accession number in the report
   -rdesshow2          boolean    Show description in the report
   -rscoreshow2        boolean    Show the score in the report
   -rstrandshow2       boolean    Show the nucleotide strand in the report
   -rusashow2          boolean    Show the full USA in the report
   -rmaxall2           integer    Maximum total hits to report
   -rmaxseq2           integer    Maximum hits to report for one sequence

   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
-pattern pattern The standard IUPAC one-letter codes for the amino acids are used. The symbol 'x' is used for a position where any amino acid is accepted. Ambiguities are indicated by listing the acceptable amino acids for a given position, between square parentheses '[ ]'. For example: [ALT] stands for Ala or Leu or Thr. Ambiguities are also indicated by listing between a pair of curly brackets '{ }' the amino acids that are not accepted at a given position. For example: {AM} stands for any amino acid except Ala and Met. Each element in a pattern is separated from its neighbor by a '-'. (Optional in fuzzpro). Repetition of an element of the pattern can be indicated by following that element with a numerical value or a numerical range between parenthesis. Examples: x(3) corresponds to x-x-x, x(2,4) corresponds to x-x or x-x-x or x-x-x-x. When a pattern is restricted to either the N- or C-terminal of a sequence, that pattern either starts with a '<' symbol or respectively ends with a '>' symbol. A period ends the pattern. (Optional in fuzzpro). For example, [DE](2)HS{P}X(2)PX(2,4)C Property value(s)  
[-outfile]
(Parameter 2)
report Output report file name Report output file <*>.fuzzpro
Additional (Optional) qualifiers
(none)
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  
"-pattern" associated pattern qualifiers
-pformat string File format Any string  
-pmismatch integer Pattern mismatch Any integer value 0
-pname string Pattern base name Any string  
"-outfile" associated report qualifiers
-rformat2
-rformat_outfile
string Report format Any string seqtable
-rname2
-rname_outfile
string Base file name Any string  
-rextension2
-rextension_outfile
string File name extension Any string  
-rdirectory2
-rdirectory_outfile
string Output directory Any string  
-raccshow2
-raccshow_outfile
boolean Show accession number in the report Boolean value Yes/No N
-rdesshow2
-rdesshow_outfile
boolean Show description in the report Boolean value Yes/No N
-rscoreshow2
-rscoreshow_outfile
boolean Show the score in the report Boolean value Yes/No Y
-rstrandshow2
-rstrandshow_outfile
boolean Show the nucleotide strand in the report Boolean value Yes/No Y
-rusashow2
-rusashow_outfile
boolean Show the full USA in the report Boolean value Yes/No N
-rmaxall2
-rmaxall_outfile
integer Maximum total hits to report Any integer value 0
-rmaxseq2
-rmaxseq_outfile
integer Maximum hits to report for one sequence Any integer value 0
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

fuzzpro reads in normal protein sequence USAs.

Input files for usage example

'tsw:*' is a sequence entry in the example protein database 'tsw'

Pattern specification

Patterns for fuzzpro are based on the format of pattern used in the PROSITE database, with the difference that the terminating dot '.' and the hyphens, '-', between the characters are optional.

The PROSITE pattern definition from the PROSITE documentation follows.

For example, in SWISSPROT entry 100K_RAT you can look for the pattern:

[DE](2)HS{P}X(2)PX(2,4)C

This means: Two Asps or Glus in any order followed by His, Ser, any residue other then Pro, then two of any residue followed by Pro followed by two to four of any residue followed by Cys.

The search is case-independent, so 'AAA' matches 'aaa'.

Output file format

The output is a standard EMBOSS report file.

The results can be output in one of several styles by using the command-line qualifier -rformat xxx, where 'xxx' is replaced by the name of the required format. The available format names are: embl, genbank, gff, pir, swiss, trace, listfile, dbmotif, diffseq, excel, feattable, motif, regions, seqtable, simple, srs, table, tagseq

See: http://emboss.sf.net/docs/themes/ReportFormats.html for further information on report formats.

By default fuzzpro writes a 'seqtable' report file.

Output files for usage example

File: 12s1_arath.fuzzpro

########################################
# Program: fuzzpro
# Rundate: Fri 15 Jan 2010 12:00:00
# Commandline: fuzzpro
#    -sequence "tsw:*"
#    -pattern "[FY]-[LIV]-G-[DE]-E-A-Q-x-[RKQ](2)-G"
# Report_format: seqtable
# Report_file: 12s1_arath.fuzzpro
########################################

#=======================================
#
# Sequence: ACTB1_FUGRU     from: 1   to: 375
# HitCount: 1
#
# Pattern_name Mismatch Pattern
# pattern             0 [FY]-[LIV]-G-[DE]-E-A-Q-x-[RKQ](2)-G
#
#=======================================

  Start     End Pattern_name Mismatch Sequence
     53      63 pattern             . YVGDEAQSKRG

#---------------------------------------
#---------------------------------------
#=======================================
#
# Sequence: ACTB2_FUGRU     from: 1   to: 375
# HitCount: 1
#
# Pattern_name Mismatch Pattern
# pattern             0 [FY]-[LIV]-G-[DE]-E-A-Q-x-[RKQ](2)-G
#
#=======================================

  Start     End Pattern_name Mismatch Sequence
     53      63 pattern             . YVGDEAQSKRG

#---------------------------------------
#---------------------------------------
#=======================================
#
# Sequence: ACTB3_FUGRU     from: 1   to: 375
# HitCount: 1
#
# Pattern_name Mismatch Pattern
# pattern             0 [FY]-[LIV]-G-[DE]-E-A-Q-x-[RKQ](2)-G
#
#=======================================



  [Part of this file has been deleted for brevity]

#
# Sequence: ACTSA_FUGRU     from: 1   to: 377
# HitCount: 1
#
# Pattern_name Mismatch Pattern
# pattern             0 [FY]-[LIV]-G-[DE]-E-A-Q-x-[RKQ](2)-G
#
#=======================================

  Start     End Pattern_name Mismatch Sequence
     55      65 pattern             . YVGDEAQSKRG

#---------------------------------------
#---------------------------------------
#=======================================
#
# Sequence: ACTSB_FUGRU     from: 1   to: 377
# HitCount: 1
#
# Pattern_name Mismatch Pattern
# pattern             0 [FY]-[LIV]-G-[DE]-E-A-Q-x-[RKQ](2)-G
#
#=======================================

  Start     End Pattern_name Mismatch Sequence
     55      65 pattern             . YVGDEAQSKRG

#---------------------------------------
#---------------------------------------
#=======================================
#
# Sequence: ACTS_OREMO     from: 1   to: 377
# HitCount: 1
#
# Pattern_name Mismatch Pattern
# pattern             0 [FY]-[LIV]-G-[DE]-E-A-Q-x-[RKQ](2)-G
#
#=======================================

  Start     End Pattern_name Mismatch Sequence
     55      65 pattern             . YVGDEAQSKRG

#---------------------------------------
#---------------------------------------

#---------------------------------------
# Total_sequences: 100
# Total_length: 35263
# Reported_sequences: 8
# Reported_hitcount: 8
#---------------------------------------

Data files

None.

Notes

None.

References

None.

Warnings

None.

Diagnostic Error Messages

None.

Exit status

It always exits with a status of 0.

Known bugs

None.

See also

Program name Description
antigenic Finds antigenic sites in proteins
digest Reports on protein proteolytic enzyme or reagent cleavage sites
epestfind Finds PEST motifs as potential proteolytic cleavage sites
fuzztran Search for patterns in protein sequences (translated)
helixturnhelix Identify nucleic acid-binding motifs in protein sequences
oddcomp Identify proteins with specified sequence word composition
patmatdb Searches protein sequences with a sequence motif
patmatmotifs Scan a protein sequence with motifs from the PROSITE database
pepcoil Predicts coiled coil regions in protein sequences
preg Regular expression search of protein sequence(s)
pscan Scans protein sequence(s) with fingerprints from the PRINTS database
sigcleave Reports on signal cleavage sites in a protein sequence

Other EMBOSS programs allow you to search for regular expression patterns but may be less easy for the user who has never used regular expressions before:

Author(s)

Alan Bleasby (ajb © ebi.ac.uk)
European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SD, UK

History

Written (2000) - Alan Bleasby
'-usa' added (13 March 2001) - Gary Williams

Target users

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

Comments

None