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EMBOSS: fuzzpro
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]: 
ajSeqxrefNewDbS '1-I' 'FT025'

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:6.4.0.0

   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 (default
                                  -rformat seqtable)

   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 (default -rformat seqtable) <*>.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 one or more protein sequences.

The input is a standard EMBOSS sequence query (also known as a 'USA').

Major sequence database sources defined as standard in EMBOSS installations include srs:embl, srs:uniprot and ensembl

Data can also be read from sequence output in any supported format written by an EMBOSS or third-party application.

The input format can be specified by using the command-line qualifier -sformat xxx, where 'xxx' is replaced by the name of the required format. The available format names are: gff (gff3), gff2, embl (em), genbank (gb, refseq), ddbj, refseqp, pir (nbrf), swissprot (swiss, sw), dasgff and debug.

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

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.

  • 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).
  • All other characters, including spaces are not allowed.

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, dasgff, debug, listfile, dbmotif, diffseq, draw, restrict, excel, feattable, motif, nametable, 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 Jul 2011 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_TAKRU     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                                       Mismatch Sequence
     53      63 pattern: [FY]-[LIV]-G-[DE]-E-A-Q-x-[RKQ](2)-G        . YVGDEAQSKRG

#---------------------------------------
#---------------------------------------
#=======================================
#
# Sequence: ACTB2_TAKRU     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                                       Mismatch Sequence
     53      63 pattern: [FY]-[LIV]-G-[DE]-E-A-Q-x-[RKQ](2)-G        . YVGDEAQSKRG

#---------------------------------------
#---------------------------------------
#=======================================
#
# Sequence: ACTB3_TAKRU     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_TAKRU     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                                       Mismatch Sequence
     55      65 pattern: [FY]-[LIV]-G-[DE]-E-A-Q-x-[RKQ](2)-G        . YVGDEAQSKRG

#---------------------------------------
#---------------------------------------
#=======================================
#
# Sequence: ACTSB_TAKRU     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                                       Mismatch Sequence
     55      65 pattern: [FY]-[LIV]-G-[DE]-E-A-Q-x-[RKQ](2)-G        . 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                                       Mismatch Sequence
     55      65 pattern: [FY]-[LIV]-G-[DE]-E-A-Q-x-[RKQ](2)-G        . YVGDEAQSKRG

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

#---------------------------------------
# Total_sequences: 100
# Total_length: 35357
# 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
epestfind Finds PEST motifs as potential proteolytic cleavage sites
fuzztran Search for patterns in protein sequences (translated)
patmatdb Searches protein sequences with a sequence motif
patmatmotifs Scan a protein sequence with motifs from the PROSITE database
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

Author(s)

Alan Bleasby
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.

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