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EMBOSS: maskfeat
maskfeat

 

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Function

Write a sequence with masked features

Description

maskfeat reads a sequence with associated features and writes the same information to file but with features of the specified type omitted (masked). Sequence regions corresponding to the masked-out features are masked such that characters in those region are (optionally) converted to lower case and / or (optionally) replaced with the specified mask character.

Usage

Here is a sample session with maskfeat

Mask out a feature whose type is "repeat_region" from position 2331 to 2356: 


% maskfeat tembl:ab000360 
Write a sequence with masked features
output sequence [ab000360.fasta]:

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

Example 2

Change to lower-case a feature whose type is "repeat_region" from position 2331 to 2356. Note that '-supper' is used to make the whole sequence upper-case before the lower-case masking: 


% maskfeat tembl:ab000360 -tolower -supper 
Write a sequence with masked features
output sequence [ab000360.fasta]:

Go to the output files for this example

Command line arguments 

Write a sequence with masked features
Version: EMBOSS:6.4.0.0

   Standard (Mandatory) qualifiers:
  [-sequence]          seqall     Sequence(s) filename and optional format, or
                                  reference (input USA)
  [-outseq]            seqout     [.] Sequence filename and
                                  optional format (output USA)

   Additional (Optional) qualifiers (* if not always prompted):
   -type               string     [repeat*] By default any feature in the
                                  feature table with a type starting 'repeat'
                                  is masked. You can set this to be any
                                  feature type you wish to mask.
                                  See http://www.ebi.ac.uk/embl/WebFeat/ for a
                                  list of the EMBL feature types and see
                                  Appendix A of the Swissprot user manual in
                                  http://www.expasy.org/sprot/userman.html for
                                  a list of the Swissprot feature types.
                                  The type may be wildcarded by using '*'.
                                  If you wish to mask more than one type,
                                  separate their names with spaces or commas,
                                  eg:
                                  *UTR repeat* (Any string)
   -tolower            toggle     [N] The region can be 'masked' by converting
                                  the sequence characters to lower-case, some
                                  non-EMBOSS programs e.g. fasta can
                                  interpret this as a masked region. The
                                  sequence is unchanged apart from the case
                                  change. You might like to ensure that the
                                  whole sequence is in upper-case before
                                  masking the specified regions to lower-case
                                  by using the '-supper' flag.
*  -maskchar           string     ['X' for protein, 'N' for nucleic] Character
                                  to use when masking.
                                  Default is 'X' for protein sequences, 'N'
                                  for nucleic sequences.
                                  If the mask character is set to be the SPACE
                                  character or a null character, then the
                                  sequence is 'masked' by changing it to
                                  lower-case, just as with the '-lowercase'
                                  flag. (Any string up to 1 characters)

   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

   "-outseq" associated qualifiers
   -osformat2          string     Output seq format
   -osextension2       string     File name extension
   -osname2            string     Base file name
   -osdirectory2       string     Output directory
   -osdbname2          string     Database name to add
   -ossingle2          boolean    Separate file for each entry
   -oufo2              string     UFO features
   -offormat2          string     Features format
   -ofname2            string     Features file name
   -ofdirectory2       string     Output directory

   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 Sequence(s) filename and optional format, or reference (input USA) Readable sequence(s) Required
[-outseq]
(Parameter 2)		 seqout Sequence filename and optional format (output USA) Writeable sequence <*>.format
Additional (Optional) qualifiers
-type string By default any feature in the feature table with a type starting 'repeat' is masked. You can set this to be any feature type you wish to mask. See http://www.ebi.ac.uk/embl/WebFeat/ for a list of the EMBL feature types and see Appendix A of the Swissprot user manual in http://www.expasy.org/sprot/userman.html for a list of the Swissprot feature types. The type may be wildcarded by using '*'. If you wish to mask more than one type, separate their names with spaces or commas, eg: *UTR repeat* Any string repeat*
-tolower toggle The region can be 'masked' by converting the sequence characters to lower-case, some non-EMBOSS programs e.g. fasta can interpret this as a masked region. The sequence is unchanged apart from the case change. You might like to ensure that the whole sequence is in upper-case before masking the specified regions to lower-case by using the '-supper' flag. Toggle value Yes/No No
-maskchar string Character to use when masking. Default is 'X' for protein sequences, 'N' for nucleic sequences. If the mask character is set to be the SPACE character or a null character, then the sequence is 'masked' by changing it to lower-case, just as with the '-lowercase' flag. Any string up to 1 characters 'X' for protein, 'N' for nucleic
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  
"-outseq" associated seqout qualifiers
-osformat2
-osformat_outseq		 string Output seq format Any string  
-osextension2
-osextension_outseq		 string File name extension Any string  
-osname2
-osname_outseq		 string Base file name Any string  
-osdirectory2
-osdirectory_outseq		 string Output directory Any string  
-osdbname2
-osdbname_outseq		 string Database name to add Any string  
-ossingle2
-ossingle_outseq		 boolean Separate file for each entry Boolean value Yes/No N
-oufo2
-oufo_outseq		 string UFO features Any string  
-offormat2
-offormat_outseq		 string Features format Any string  
-ofname2
-ofname_outseq		 string Features file name Any string  
-ofdirectory2
-ofdirectory_outseq		 string Output directory Any string  
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

maskfeat reads one or more nucleotide or protein sequences with features.

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

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: text, html, xml (uniprotxml), obo, embl (swissprot)

Where the sequence format has no feature information, a second file can be read to load the feature data. The file is specified with the qualifier -ufo xxx and the feature format is specified with the qualifier -fformat xxx

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

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

Input files for usage example

'tembl:ab000360' is a sequence entry in the example nucleic acid database 'tembl'

Database entry: tembl:ab000360

ID   AB000360; SV 1; linear; genomic DNA; STD; HUM; 2582 BP.
XX
AC   AB000360;
XX
DT   27-OCT-1997 (Rel. 53, Created)
DT   28-SEP-2008 (Rel. 97, Last updated, Version 5)
XX
DE   Homo sapiens PIGC gene, complete cds.
XX
KW   .
XX
OS   Homo sapiens (human)
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae;
OC   Homo.
XX
RN   [1]
RP   1-2582
RA   Hong Y., Ohishi K., Inoue N., Endo Y., Fujita T., Takeda J., Kinoshita T.;
RT   ;
RL   Submitted (08-JAN-1997) to the EMBL/GenBank/DDBJ databases.
RL   Contact:Yeongjin Hong Research Institute for Microbial Diseases,
RL   Immunoregulation; 3-1 Yamada-oka, Suita, Osaka 565, Japan
XX
RN   [2]
RX   DOI; 10.1006/geno.1997.4893.
RX   PUBMED; 9325057.
RA   Hong Y., Ohishi K., Inoue N., Endo Y., Fujita T., Takeda J., Kinoshita T.;
RT   "Structures and chromosomal localizations of the
RT   glycosylphosphatidylinositol synthesis gene PIGC and its pseudogene
RT   PIGCP1";
RL   Genomics 44(3):347-349(1997).
XX
FH   Key             Location/Qualifiers
FH
FT   source          1..2582
FT                   /organism="Homo sapiens"
FT                   /chromosome="1"
FT                   /map="1q23-q25"
FT                   /mol_type="genomic DNA"
FT                   /db_xref="taxon:9606"
FT   exon            808..2266
FT   CDS             1101..1994
FT                   /codon_start=1
FT                   /transl_table=1
FT                   /gene="PIGC"
FT                   /standard_name="glycosylphosphatidylinositol-synthesis
FT                   gene"
FT                   /db_xref="GDB:6045444"
FT                   /db_xref="GOA:Q92535"


  [Part of this file has been deleted for brevity]

FT   variation       2259
FT                   /replace="t"
FT   repeat_region   2331..2356
FT                   /rpt_unit_seq="gt"
XX
SQ   Sequence 2582 BP; 694 A; 494 C; 581 G; 813 T; 0 other;
     ggatccctgc tgcagagggg gtaacggtgt ctggcttgcc aagcaatatt tgttgtggtc        60
     tatcatggaa gaaataaagt cgggcaatat gaattttttt tttctcaaat ttgccggatg       120
     gctgtggtgt ttctgactct tagttttctc attgtgaaaa aggaatgatt atcttcttcg       180
     atcctctcaa gagtttcctt gttttgagta gattgatagc tctttaaagg atgctaagct       240
     cagctaatgg aagaagagtc tagtttcttt gaggctttga ttttggttaa actatagagc       300
     tcataccttt ctgtatggtg cagcttacta ttgtctttgg attggtaact taaaaaatac       360
     aaataacatg cctttgagaa ccaataaaaa ctatggatat tatccctata aatttacaca       420
     aatccagata taagcatgca atgtgatata cctaagggat atgtgaacca ctgagttaag       480
     aactgcttta gagggagata caatgtgaga cacaggcttt gggataagac tttggtttga       540
     atcctggctc tgctctgtta ccttagggca aagttactta agcatcttga atctcagctt       600
     ttttaccaaa gcaggactaa tactaactta caaggtggtg aggattaagt gaaagaagat       660
     acataaggca cttagcacat agtaggtact caataagcga tagctaacag atgtctatta       720
     ttattcaagg aattataatt ttcaaatctg aaatgcagtt ttaatgtccc ataaggtgac       780
     taccacatac atttttctca gacttttagt aaactgagtt gatttgactt tatctcagta       840
     ctactcttga cctttcacaa ctttcgtagg ttcacagtct ctctttttct aggaacttgg       900
     ctgtgttgtc ctgcctcaga gacaaattca tctattgtag gcctagcccc tgcctttgaa       960
     aacaaggaaa ggttggtaga acatcaacac agcatggaat ttccagggag gtctcatttc      1020
     aaaacttcat aaagaacaag aaccacctgg acttctgtga gggcgatgat taaactggcc      1080
     tgagtttgaa tgaaaggata atgtatgctc aacctgtgac taacaccaag gaggtcaagt      1140
     ggcagaaggt cttgtatgag cgacagccct ttcctgataa ctatgtggac cggcgattcc      1200
     tggaagagct ccggaaaaac atccatgctc ggaaatacca atattgggct gtggtatttg      1260
     agtccagtgt ggtgatccag cagctgtgca gtgtttgtgt ttttgtggtt atctggtggt      1320
     atatggatga gggtcttctg gccccccatt ggcttttagg gactggcctg gcttcttcac      1380
     tgattgggta tgttttgttt gatctcattg atggaggtga agggcggaag aagagtgggc      1440
     agacccggtg ggctgacctg aagagtgccc tagtcttcat tactttcact tatgggtttt      1500
     caccagtgct gaagaccctt acagagtctg tcagcactga caccatctat gccatgtcag      1560
     tcttcatgct gttaggccat ctcatctttt ttgactatgg tgccaatgct gccattgtat      1620
     ccagcacact atccttgaac atggccatct ttgcttctgt atgcttggca tcacgtcttc      1680
     cccggtccct gcatgccttc atcatggtga catttgccat tcagattttt gccctgtggc      1740
     ccatgttgca gaagaaacta aaggcatgta ctccccggag ctatgtgggg gtcacactgc      1800
     tttttgcatt ttcagccgtg ggaggcctac tgtccattag tgctgtggga gccgtactct      1860
     ttgcccttct gctgatgtct atctcatgtc tgtgttcatt ctacctcatt cgcttgcagc      1920
     tttttaaaga aaacattcat gggccttggg atgaagctga aatcaaggaa gacttgtcca      1980
     ggttcctcag ttaaattagg acatccatta cattattaaa gcaagctgat agattagcct      2040
     cctaactagt atagaactta aagacagagt tccattctgg aagcagcatg tcattgtggt      2100
     aagagaatag agatcaaaac caaaaaaaat gaaccaaagg cttgggtggt gagggtgctt      2160
     atcctttctg ttattttgta gatgaaaaaa ctttctgggg acctcttgaa ttacatgctg      2220
     taacatatga agtgatgtgg tttctattaa aaaaataaca catccatcaa gttgtctcat      2280
     gatttttcca taaacaggag gcagacagag gggcatgaag agtgaagtaa gtgtgtgtgt      2340
     gtgtgtgtgt gtgtgtaaag tcacttcttt ctaccctttt caatgtgcta atgctctttt      2400
     atttatctag ggctcaaatc ttagaacaca gggtgctatg ctcagttttg ttgcccaaga      2460
     tcacagaatt ggttacttaa ccttgactca gagtttctac cttgttctta gggaagcata      2520
     tcacaactaa ttgcaaagca gagtgtgatg tgtcacaata agcagaatgc tagggggaat      2580
     tc                                                                     2582
//

Output file format

The output is a standard EMBOSS sequence file.

The results can be output in one of several styles by using the command-line qualifier -osformat 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, excel, feattable, motif, nametable, regions, seqtable, simple, srs, table, tagseq.

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

The sequence file has features masked with the specified character.

Output files for usage example

File: ab000360.fasta

>AB000360 AB000360.1 Homo sapiens PIGC gene, complete cds.
ggatccctgctgcagagggggtaacggtgtctggcttgccaagcaatatttgttgtggtc
tatcatggaagaaataaagtcgggcaatatgaattttttttttctcaaatttgccggatg
gctgtggtgtttctgactcttagttttctcattgtgaaaaaggaatgattatcttcttcg
atcctctcaagagtttccttgttttgagtagattgatagctctttaaaggatgctaagct
cagctaatggaagaagagtctagtttctttgaggctttgattttggttaaactatagagc
tcatacctttctgtatggtgcagcttactattgtctttggattggtaacttaaaaaatac
aaataacatgcctttgagaaccaataaaaactatggatattatccctataaatttacaca
aatccagatataagcatgcaatgtgatatacctaagggatatgtgaaccactgagttaag
aactgctttagagggagatacaatgtgagacacaggctttgggataagactttggtttga
atcctggctctgctctgttaccttagggcaaagttacttaagcatcttgaatctcagctt
ttttaccaaagcaggactaatactaacttacaaggtggtgaggattaagtgaaagaagat
acataaggcacttagcacatagtaggtactcaataagcgatagctaacagatgtctatta
ttattcaaggaattataattttcaaatctgaaatgcagttttaatgtcccataaggtgac
taccacatacatttttctcagacttttagtaaactgagttgatttgactttatctcagta
ctactcttgacctttcacaactttcgtaggttcacagtctctctttttctaggaacttgg
ctgtgttgtcctgcctcagagacaaattcatctattgtaggcctagcccctgcctttgaa
aacaaggaaaggttggtagaacatcaacacagcatggaatttccagggaggtctcatttc
aaaacttcataaagaacaagaaccacctggacttctgtgagggcgatgattaaactggcc
tgagtttgaatgaaaggataatgtatgctcaacctgtgactaacaccaaggaggtcaagt
ggcagaaggtcttgtatgagcgacagccctttcctgataactatgtggaccggcgattcc
tggaagagctccggaaaaacatccatgctcggaaataccaatattgggctgtggtatttg
agtccagtgtggtgatccagcagctgtgcagtgtttgtgtttttgtggttatctggtggt
atatggatgagggtcttctggccccccattggcttttagggactggcctggcttcttcac
tgattgggtatgttttgtttgatctcattgatggaggtgaagggcggaagaagagtgggc
agacccggtgggctgacctgaagagtgccctagtcttcattactttcacttatgggtttt
caccagtgctgaagacccttacagagtctgtcagcactgacaccatctatgccatgtcag
tcttcatgctgttaggccatctcatcttttttgactatggtgccaatgctgccattgtat
ccagcacactatccttgaacatggccatctttgcttctgtatgcttggcatcacgtcttc
cccggtccctgcatgccttcatcatggtgacatttgccattcagatttttgccctgtggc
ccatgttgcagaagaaactaaaggcatgtactccccggagctatgtgggggtcacactgc
tttttgcattttcagccgtgggaggcctactgtccattagtgctgtgggagccgtactct
ttgcccttctgctgatgtctatctcatgtctgtgttcattctacctcattcgcttgcagc
tttttaaagaaaacattcatgggccttgggatgaagctgaaatcaaggaagacttgtcca
ggttcctcagttaaattaggacatccattacattattaaagcaagctgatagattagcct
cctaactagtatagaacttaaagacagagttccattctggaagcagcatgtcattgtggt
aagagaatagagatcaaaaccaaaaaaaatgaaccaaaggcttgggtggtgagggtgctt
atcctttctgttattttgtagatgaaaaaactttctggggacctcttgaattacatgctg
taacatatgaagtgatgtggtttctattaaaaaaataacacatccatcaagttgtctcat
gatttttccataaacaggaggcagacagaggggcatgaagagtgaagtaaNNNNNNNNNN
NNNNNNNNNNNNNNNNaaagtcacttctttctacccttttcaatgtgctaatgctctttt
atttatctagggctcaaatcttagaacacagggtgctatgctcagttttgttgcccaaga
tcacagaattggttacttaaccttgactcagagtttctaccttgttcttagggaagcata
tcacaactaattgcaaagcagagtgtgatgtgtcacaataagcagaatgctagggggaat
tc

Output files for usage example 2

File: ab000360.fasta

>AB000360 AB000360.1 Homo sapiens PIGC gene, complete cds.
GGATCCCTGCTGCAGAGGGGGTAACGGTGTCTGGCTTGCCAAGCAATATTTGTTGTGGTC
TATCATGGAAGAAATAAAGTCGGGCAATATGAATTTTTTTTTTCTCAAATTTGCCGGATG
GCTGTGGTGTTTCTGACTCTTAGTTTTCTCATTGTGAAAAAGGAATGATTATCTTCTTCG
ATCCTCTCAAGAGTTTCCTTGTTTTGAGTAGATTGATAGCTCTTTAAAGGATGCTAAGCT
CAGCTAATGGAAGAAGAGTCTAGTTTCTTTGAGGCTTTGATTTTGGTTAAACTATAGAGC
TCATACCTTTCTGTATGGTGCAGCTTACTATTGTCTTTGGATTGGTAACTTAAAAAATAC
AAATAACATGCCTTTGAGAACCAATAAAAACTATGGATATTATCCCTATAAATTTACACA
AATCCAGATATAAGCATGCAATGTGATATACCTAAGGGATATGTGAACCACTGAGTTAAG
AACTGCTTTAGAGGGAGATACAATGTGAGACACAGGCTTTGGGATAAGACTTTGGTTTGA
ATCCTGGCTCTGCTCTGTTACCTTAGGGCAAAGTTACTTAAGCATCTTGAATCTCAGCTT
TTTTACCAAAGCAGGACTAATACTAACTTACAAGGTGGTGAGGATTAAGTGAAAGAAGAT
ACATAAGGCACTTAGCACATAGTAGGTACTCAATAAGCGATAGCTAACAGATGTCTATTA
TTATTCAAGGAATTATAATTTTCAAATCTGAAATGCAGTTTTAATGTCCCATAAGGTGAC
TACCACATACATTTTTCTCAGACTTTTAGTAAACTGAGTTGATTTGACTTTATCTCAGTA
CTACTCTTGACCTTTCACAACTTTCGTAGGTTCACAGTCTCTCTTTTTCTAGGAACTTGG
CTGTGTTGTCCTGCCTCAGAGACAAATTCATCTATTGTAGGCCTAGCCCCTGCCTTTGAA
AACAAGGAAAGGTTGGTAGAACATCAACACAGCATGGAATTTCCAGGGAGGTCTCATTTC
AAAACTTCATAAAGAACAAGAACCACCTGGACTTCTGTGAGGGCGATGATTAAACTGGCC
TGAGTTTGAATGAAAGGATAATGTATGCTCAACCTGTGACTAACACCAAGGAGGTCAAGT
GGCAGAAGGTCTTGTATGAGCGACAGCCCTTTCCTGATAACTATGTGGACCGGCGATTCC
TGGAAGAGCTCCGGAAAAACATCCATGCTCGGAAATACCAATATTGGGCTGTGGTATTTG
AGTCCAGTGTGGTGATCCAGCAGCTGTGCAGTGTTTGTGTTTTTGTGGTTATCTGGTGGT
ATATGGATGAGGGTCTTCTGGCCCCCCATTGGCTTTTAGGGACTGGCCTGGCTTCTTCAC
TGATTGGGTATGTTTTGTTTGATCTCATTGATGGAGGTGAAGGGCGGAAGAAGAGTGGGC
AGACCCGGTGGGCTGACCTGAAGAGTGCCCTAGTCTTCATTACTTTCACTTATGGGTTTT
CACCAGTGCTGAAGACCCTTACAGAGTCTGTCAGCACTGACACCATCTATGCCATGTCAG
TCTTCATGCTGTTAGGCCATCTCATCTTTTTTGACTATGGTGCCAATGCTGCCATTGTAT
CCAGCACACTATCCTTGAACATGGCCATCTTTGCTTCTGTATGCTTGGCATCACGTCTTC
CCCGGTCCCTGCATGCCTTCATCATGGTGACATTTGCCATTCAGATTTTTGCCCTGTGGC
CCATGTTGCAGAAGAAACTAAAGGCATGTACTCCCCGGAGCTATGTGGGGGTCACACTGC
TTTTTGCATTTTCAGCCGTGGGAGGCCTACTGTCCATTAGTGCTGTGGGAGCCGTACTCT
TTGCCCTTCTGCTGATGTCTATCTCATGTCTGTGTTCATTCTACCTCATTCGCTTGCAGC
TTTTTAAAGAAAACATTCATGGGCCTTGGGATGAAGCTGAAATCAAGGAAGACTTGTCCA
GGTTCCTCAGTTAAATTAGGACATCCATTACATTATTAAAGCAAGCTGATAGATTAGCCT
CCTAACTAGTATAGAACTTAAAGACAGAGTTCCATTCTGGAAGCAGCATGTCATTGTGGT
AAGAGAATAGAGATCAAAACCAAAAAAAATGAACCAAAGGCTTGGGTGGTGAGGGTGCTT
ATCCTTTCTGTTATTTTGTAGATGAAAAAACTTTCTGGGGACCTCTTGAATTACATGCTG
TAACATATGAAGTGATGTGGTTTCTATTAAAAAAATAACACATCCATCAAGTTGTCTCAT
GATTTTTCCATAAACAGGAGGCAGACAGAGGGGCATGAAGAGTGAAGTAAgtgtgtgtgt
gtgtgtgtgtgtgtgtAAAGTCACTTCTTTCTACCCTTTTCAATGTGCTAATGCTCTTTT
ATTTATCTAGGGCTCAAATCTTAGAACACAGGGTGCTATGCTCAGTTTTGTTGCCCAAGA
TCACAGAATTGGTTACTTAACCTTGACTCAGAGTTTCTACCTTGTTCTTAGGGAAGCATA
TCACAACTAATTGCAAAGCAGAGTGTGATGTGTCACAATAAGCAGAATGCTAGGGGGAAT
TC

Data files

None.

Notes

Formats such as EMBL or SWISSPROT include features in the sequence annotation. Otherwise, features they may be supplied in a separate file and specified with the qualifier -ufo or -fopenfile / -fformat.

The feature type to mask is by default repeat*, i.e. any type whose name starts with repeat will be omitted from the output file. Any other type of feature(s) may be specified with the -type qualifier. To specify more than one type of feature, separate their names with spaces or commas. The names may be wild-carded with asterisks * to find gruops of feature types sharing a common part of their names.

If you are unsure of the names of feature types in use, please consult http://www.ebi.ac.uk/Services/WebFeat/ (EMBL feature types) and see Appendix A of the Swissprot user manual in http://www.uniprot.org/manual/sequence_annotation (Swissprot feature types).

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
aligncopy Reads and writes alignments
aligncopypair Reads and writes pairs from alignments
biosed Replace or delete sequence sections
codcopy Copy and reformat a codon usage table
cutseq Removes a section from a sequence
degapseq Removes non-alphabetic (e.g. gap) characters from sequences
descseq Alter the name or description of a sequence
entret Retrieves sequence entries from flatfile databases and files
extractalign Extract regions from a sequence alignment
extractfeat Extract features from sequence(s)
extractseq Extract regions from a sequence
featcopy Reads and writes a feature table
featreport Reads and writes a feature table
feattext Return a feature table original text
listor Write a list file of the logical OR of two sets of sequences
makenucseq Create random nucleotide sequences
makeprotseq Create random protein sequences
maskambignuc Masks all ambiguity characters in nucleotide sequences with N
maskambigprot Masks all ambiguity characters in protein sequences with X
maskseq Write a sequence with masked regions
newseq Create a sequence file from a typed-in sequence
nohtml Remove mark-up (e.g. HTML tags) from an ASCII text file
noreturn Remove carriage return from ASCII files
nospace Remove whitespace from an ASCII text file
notab Replace tabs with spaces in an ASCII text file
notseq Write to file a subset of an input stream of sequences
nthseq Write to file a single sequence from an input stream of sequences
nthseqset Reads and writes (returns) one set of sequences from many
pasteseq Insert one sequence into another
revseq Reverse and complement a nucleotide sequence
seqcount Reads and counts sequences
seqret Reads and writes (returns) sequences
seqretsetall Reads and writes (returns) many sets of sequences
seqretsplit Reads sequences and writes them to individual files
showfeat Display features of a sequence in pretty format
sizeseq Sort sequences by size
skipredundant Remove redundant sequences from an input set
skipseq Reads and writes (returns) sequences, skipping first few
splitsource Split sequence(s) into original source sequences
splitter Split sequence(s) into smaller sequences
trimest Remove poly-A tails from nucleotide sequences
trimseq Remove unwanted characters from start and end of sequence(s)
trimspace Remove extra whitespace from an ASCII text file
twofeat Finds neighbouring pairs of features in sequence(s)
union Concatenate multiple sequences into a single sequence
vectorstrip Removes vectors from the ends of nucleotide sequence(s)
yank Add a sequence reference (a full USA) to a list file

Author(s)

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.

History

Written (2000) - Gary Williams

Target users

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

Comments

None