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twofeat |
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Function
Find neighbouring pairs of features in sequence(s)Description
twofeat finds neighbouring pairs of specified features in one or more input sequences. Each feature may be specified by type, name, sense, score, tag/value pairs etc. Their relationship, e.g. their sequence separation or overlap, relative sense and order may also be specified. It writes a standard EMBOSS report file with any such feature pairs identified. By default each pair is written as a single feature but (optionally) they are written in their original form.
Algorithm
For each of the pair of features, you can specify its type name, its sense, its score and any tag/value pairs, amongst other things.
You can then specify the type of relationship that the two features should have as follows:
Minimum and maximum distance between each feature.
Distance measurement (measure from the nearest ends of the two features, from the left ends, from right ends, from the furthest ends.)
Type of overlap (any type of overlap or no overlap is allowed, Overlap required, No overlaps are allowed, Overlap required but one feature must not be completely within the other, Feature A must be completely enclosed within feature B, Feature B must be completely enclosed within feature A).
Feature sense (any sense, in the same sense or in opposite senses)
Feature order (any order, Feature A then feature B, Feature B then feature A)
The program proceeds as follows. For eachs sequence: Identify the features that match the criteria for Feature A Identify the features that match the criteria for Feature B Compare all pairs of features If they satisfy the requirements output them to the report file
By default the resulting pairs of features found are then written to a report file as a single feature from the first postion of the left-most feature to the last position of the right-most feature. You can modify the output to report the pairs of features with no changes made to them.
Usage
Here is a sample session with twofeatWithout the -twoout option the output report contains just one feature for every pair of features found.
% twofeat tembl:x65923 Find neighbouring pairs of features in sequence(s) Type of first feature [*]: polyA_signal Type of second feature [*]: polyA_site The minimum distance between the features [0]: 10 The maximum distance between the features [0]: 50 Output report [x65923.twofeat]: |
Go to the input files for this example
Go to the output files for this example
Example 2
The -twoout option makes the output report give the pairs of features found. The output report format type has been changed to display the full original pairs of features in GFF format.
% twofeat -twoout -rformat gff tembl:x65923 Find neighbouring pairs of features in sequence(s) Type of first feature [*]: polyA_signal Type of second feature [*]: polyA_site The minimum distance between the features [0]: 10 The maximum distance between the features [0]: 50 Output report [x65923.twofeat]: |
Go to the output files for this example
Command line arguments
Find neighbouring pairs of features in sequence(s)
Version: EMBOSS:6.6.0.0
Standard (Mandatory) qualifiers:
[-sequence] seqall Sequence(s) filename and optional format, or
reference (input USA)
-atype string [*] By default every feature in the feature
table is allowed. You can set this to be any
feature type you wish to allow.
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 allow more than one type,
separate their names with the character '|',
eg:
*UTR | intron (Any string)
-btype string [*] By default every feature in the feature
table is allowed. You can set this to be any
feature type you wish to allow.
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 allow more than one type,
separate their names with the character '|',
eg:
*UTR | intron (Any string)
-minrange integer [0] If this is greater or equal to
'maxrange', then no min or max range is
specified (Any integer value)
-maxrange integer [0] If this is less than or equal to
'minrange', then no min or max range is
specified (Any integer value)
[-outfile] report [*.twofeat] Output report file name (default
-rformat table)
Additional (Optional) qualifiers (* if not always prompted):
-asource string [*] By default any feature source in the
feature table is allowed. You can set this
to match any feature source you wish to
allow.
The source name is usually either the name
of the program that detected the feature or
it is the feature table (eg: EMBL) that the
feature came from.
The source may be wildcarded by using '*'.
If you wish to allow more than one source,
separate their names with the character '|',
eg:
gene* | embl (Any string)
-asense menu [0] By default any feature sense is allowed.
You can set this to match the required
sense. (Values: 0 (Any sense); + (Forward
sense); - (Reverse sense))
-aminscore float [0.0] If this is greater than or equal to
the maximum score, then any score is
allowed. (Any numeric value)
-amaxscore float [0.0] If this is less than or equal to the
maximum score, then any score is permitted.
(Any numeric value)
-atag string [*] Tags are the types of extra values that
a feature may have. For example in the EMBL
feature table, a 'CDS' type of feature may
have the tags '/codon', '/codon_start',
'/db_xref', '/EC_number', '/evidence',
'/exception', '/function', '/gene',
'/label', '/map', '/note', '/number',
'/partial', '/product', '/protein_id',
'/pseudo', '/standard_name', '/translation',
'/transl_except', '/transl_table', or
'/usedin'. Some of these tags also have
values, for example '/gene' can have the
value of the gene name.
By default any feature tag in the feature
table is allowed. You can set this to match
any feature tag you wish to allow.
The tag may be wildcarded by using '*'.
If you wish to allow more than one tag,
separate their names with the character '|',
eg:
gene | label (Any string)
-avalue string [*] Tag values are the values associated
with a feature tag. Tags are the types of
extra values that a feature may have. For
example in the EMBL feature table, a 'CDS'
type of feature may have the tags '/codon',
'/codon_start', '/db_xref', '/EC_number',
'/evidence', '/exception', '/function',
'/gene', '/label', '/map', '/note',
'/number', '/partial', '/product',
'/protein_id', '/pseudo', '/standard_name',
'/translation', '/transl_except',
'/transl_table', or '/usedin'. Only some of
these tags can have values, for example
'/gene' can have the value of the gene name.
By default any feature tag value in the
feature table is allowed. You can set this
to match any feature tag value you wish to
allow.
The tag value may be wildcarded by using
'*'.
If you wish to allow more than one tag
value, separate their names with the
character '|', eg:
pax* | 10 (Any string)
-bsource string [*] By default any feature source in the
feature table is allowed. You can set this
to match any feature source you wish to
allow.
The source name is usually either the name
of the program that detected the feature or
it is the feature table (eg: EMBL) that the
feature came from.
The source may be wildcarded by using '*'.
If you wish to allow more than one source,
separate their names with the character '|',
eg:
gene* | embl (Any string)
-bsense menu [0] By default any feature sense is allowed.
You can set this to match the required
sense. (Values: 0 (Any sense); + (Forward
sense); - (Reverse sense))
-bminscore float [0.0] If this is greater than or equal to
the maximum score, then any score is
allowed. (Any numeric value)
-bmaxscore float [0.0] If this is less than or equal to the
maximum score, then any score is permitted.
(Any numeric value)
-btag string [*] Tags are the types of extra values that
a feature may have. For example in the EMBL
feature table, a 'CDS' type of feature may
have the tags '/codon', '/codon_start',
'/db_xref', '/EC_number', '/evidence',
'/exception', '/function', '/gene',
'/label', '/map', '/note', '/number',
'/partial', '/product', '/protein_id',
'/pseudo', '/standard_name', '/translation',
'/transl_except', '/transl_table', or
'/usedin'. Some of these tags also have
values, for example '/gene' can have the
value of the gene name.
By default any feature tag in the feature
table is allowed. You can set this to match
any feature tag you wish to allow.
The tag may be wildcarded by using '*'.
If you wish to allow more than one tag,
separate their names with the character '|',
eg:
gene | label (Any string)
-bvalue string [*] Tag values are the values associated
with a feature tag. Tags are the types of
extra values that a feature may have. For
example in the EMBL feature table, a 'CDS'
type of feature may have the tags '/codon',
'/codon_start', '/db_xref', '/EC_number',
'/evidence', '/exception', '/function',
'/gene', '/label', '/map', '/note',
'/number', '/partial', '/product',
'/protein_id', '/pseudo', '/standard_name',
'/translation', '/transl_except',
'/transl_table', or '/usedin'. Only some of
these tags can have values, for example
'/gene' can have the value of the gene name.
By default any feature tag value in the
feature table is allowed. You can set this
to match any feature tag value you wish to
allow.
The tag value may be wildcarded by using
'*'.
If you wish to allow more than one tag
value, separate their names with the
character '|', eg:
pax* | 10 (Any string)
-overlap menu [A] This allows you to specify the allowed
overlaps of the features A and B.
You can allow any or no overlaps, specify
that they must or must not overlap, that one
must or must not be wholly enclosed within
another feature. (Values: A (Any); O
(Overlap required); NO (No overlaps are
allowed); NW (Overlap required but not
within); AW (A must be all within B); BW (B
must be all within A))
-rangetype menu [N] This allows you to specify the positions
from which the allowed minimum or maximum
distance between the features is measured
(Values: N (From nearest ends); L (From left
ends); R (From right ends); F (From
furthest ends))
-sense menu [A] This allows you to specify the required
sense that the two features must be on. This
is ignored (always 'Any') when looking at
protein sequence features. (Values: A (Any
sense); S (Same sense); O (Opposite sense))
-order menu [A] This allows you to specify the required
order of the two features. The order is
measured from the start positions of the
features. This criterion is always applied
despite the specified overlap type required.
(Values: A (Any); AB (Feature A then
feature B); BA (Feature B then feature A))
-twoout toggle [N] If you set this to be true, then the two
features themselves will be written out. If
it is left as false, then a single feature
will be written out covering the two
features you found.
* -typeout string [misc_feature] If you have specified that
the pairs of features that are found should
be reported as one feature in the ouput,
then you can specify the 'type' name of the
new feature here. By default every feature
in the feature table is allowed. 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. If
you specify an invalid feature type name,
then the default name 'misc_feature' is
used. (Any string)
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
-scircular1 boolean Sequence is circular
-squick1 boolean Read id and sequence only
-sformat1 string Input sequence format
-iquery1 string Input query fields or ID list
-ioffset1 integer Input start position offset
-sdbname1 string Database name
-sid1 string Entryname
-ufo1 string UFO features
-fformat1 string Features format
-fopenfile1 string Features file 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 | Sequence(s) filename and optional format, or reference (input USA) | Readable sequence(s) | Required | ||||||||||||
| -atype | string | By default every feature in the feature table is allowed. You can set this to be any feature type you wish to allow. 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 allow more than one type, separate their names with the character '|', eg: *UTR | intron | Any string | * | ||||||||||||
| -btype | string | By default every feature in the feature table is allowed. You can set this to be any feature type you wish to allow. 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 allow more than one type, separate their names with the character '|', eg: *UTR | intron | Any string | * | ||||||||||||
| -minrange | integer | If this is greater or equal to 'maxrange', then no min or max range is specified | Any integer value | 0 | ||||||||||||
| -maxrange | integer | If this is less than or equal to 'minrange', then no min or max range is specified | Any integer value | 0 | ||||||||||||
| [-outfile] (Parameter 2) |
report | Output report file name | (default -rformat table) | <*>.twofeat | ||||||||||||
| Additional (Optional) qualifiers | ||||||||||||||||
| -asource | string | By default any feature source in the feature table is allowed. You can set this to match any feature source you wish to allow. The source name is usually either the name of the program that detected the feature or it is the feature table (eg: EMBL) that the feature came from. The source may be wildcarded by using '*'. If you wish to allow more than one source, separate their names with the character '|', eg: gene* | embl | Any string | * | ||||||||||||
| -asense | list | By default any feature sense is allowed. You can set this to match the required sense. |
|
0 | ||||||||||||
| -aminscore | float | If this is greater than or equal to the maximum score, then any score is allowed. | Any numeric value | 0.0 | ||||||||||||
| -amaxscore | float | If this is less than or equal to the maximum score, then any score is permitted. | Any numeric value | 0.0 | ||||||||||||
| -atag | string | Tags are the types of extra values that a feature may have. For example in the EMBL feature table, a 'CDS' type of feature may have the tags '/codon', '/codon_start', '/db_xref', '/EC_number', '/evidence', '/exception', '/function', '/gene', '/label', '/map', '/note', '/number', '/partial', '/product', '/protein_id', '/pseudo', '/standard_name', '/translation', '/transl_except', '/transl_table', or '/usedin'. Some of these tags also have values, for example '/gene' can have the value of the gene name. By default any feature tag in the feature table is allowed. You can set this to match any feature tag you wish to allow. The tag may be wildcarded by using '*'. If you wish to allow more than one tag, separate their names with the character '|', eg: gene | label | Any string | * | ||||||||||||
| -avalue | string | Tag values are the values associated with a feature tag. Tags are the types of extra values that a feature may have. For example in the EMBL feature table, a 'CDS' type of feature may have the tags '/codon', '/codon_start', '/db_xref', '/EC_number', '/evidence', '/exception', '/function', '/gene', '/label', '/map', '/note', '/number', '/partial', '/product', '/protein_id', '/pseudo', '/standard_name', '/translation', '/transl_except', '/transl_table', or '/usedin'. Only some of these tags can have values, for example '/gene' can have the value of the gene name. By default any feature tag value in the feature table is allowed. You can set this to match any feature tag value you wish to allow. The tag value may be wildcarded by using '*'. If you wish to allow more than one tag value, separate their names with the character '|', eg: pax* | 10 | Any string | * | ||||||||||||
| -bsource | string | By default any feature source in the feature table is allowed. You can set this to match any feature source you wish to allow. The source name is usually either the name of the program that detected the feature or it is the feature table (eg: EMBL) that the feature came from. The source may be wildcarded by using '*'. If you wish to allow more than one source, separate their names with the character '|', eg: gene* | embl | Any string | * | ||||||||||||
| -bsense | list | By default any feature sense is allowed. You can set this to match the required sense. |
|
0 | ||||||||||||
| -bminscore | float | If this is greater than or equal to the maximum score, then any score is allowed. | Any numeric value | 0.0 | ||||||||||||
| -bmaxscore | float | If this is less than or equal to the maximum score, then any score is permitted. | Any numeric value | 0.0 | ||||||||||||
| -btag | string | Tags are the types of extra values that a feature may have. For example in the EMBL feature table, a 'CDS' type of feature may have the tags '/codon', '/codon_start', '/db_xref', '/EC_number', '/evidence', '/exception', '/function', '/gene', '/label', '/map', '/note', '/number', '/partial', '/product', '/protein_id', '/pseudo', '/standard_name', '/translation', '/transl_except', '/transl_table', or '/usedin'. Some of these tags also have values, for example '/gene' can have the value of the gene name. By default any feature tag in the feature table is allowed. You can set this to match any feature tag you wish to allow. The tag may be wildcarded by using '*'. If you wish to allow more than one tag, separate their names with the character '|', eg: gene | label | Any string | * | ||||||||||||
| -bvalue | string | Tag values are the values associated with a feature tag. Tags are the types of extra values that a feature may have. For example in the EMBL feature table, a 'CDS' type of feature may have the tags '/codon', '/codon_start', '/db_xref', '/EC_number', '/evidence', '/exception', '/function', '/gene', '/label', '/map', '/note', '/number', '/partial', '/product', '/protein_id', '/pseudo', '/standard_name', '/translation', '/transl_except', '/transl_table', or '/usedin'. Only some of these tags can have values, for example '/gene' can have the value of the gene name. By default any feature tag value in the feature table is allowed. You can set this to match any feature tag value you wish to allow. The tag value may be wildcarded by using '*'. If you wish to allow more than one tag value, separate their names with the character '|', eg: pax* | 10 | Any string | * | ||||||||||||
| -overlap | list | This allows you to specify the allowed overlaps of the features A and B. You can allow any or no overlaps, specify that they must or must not overlap, that one must or must not be wholly enclosed within another feature. |
|
A | ||||||||||||
| -rangetype | list | This allows you to specify the positions from which the allowed minimum or maximum distance between the features is measured |
|
N | ||||||||||||
| -sense | list | This allows you to specify the required sense that the two features must be on. This is ignored (always 'Any') when looking at protein sequence features. |
|
A | ||||||||||||
| -order | list | This allows you to specify the required order of the two features. The order is measured from the start positions of the features. This criterion is always applied despite the specified overlap type required. |
|
A | ||||||||||||
| -twoout | toggle | If you set this to be true, then the two features themselves will be written out. If it is left as false, then a single feature will be written out covering the two features you found. | Toggle value Yes/No | No | ||||||||||||
| -typeout | string | If you have specified that the pairs of features that are found should be reported as one feature in the ouput, then you can specify the 'type' name of the new feature here. By default every feature in the feature table is allowed. 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. If you specify an invalid feature type name, then the default name 'misc_feature' is used. | Any string | misc_feature | ||||||||||||
| 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 | ||||||||||||
| -scircular1 -scircular_sequence |
boolean | Sequence is circular | Boolean value Yes/No | N | ||||||||||||
| -squick1 -squick_sequence |
boolean | Read id and sequence only | Boolean value Yes/No | N | ||||||||||||
| -sformat1 -sformat_sequence |
string | Input sequence format | Any string | |||||||||||||
| -iquery1 -iquery_sequence |
string | Input query fields or ID list | Any string | |||||||||||||
| -ioffset1 -ioffset_sequence |
integer | Input start position offset | Any integer value | 0 | ||||||||||||
| -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 report qualifiers | ||||||||||||||||
| -rformat2 -rformat_outfile |
string | Report format | Any string | table | ||||||||||||
| -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
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.
twofeat reads two sequence inputs with feature information.
Input files for usage example
'tembl:x65923' is a sequence entry in the example nucleic acid database 'tembl'
Database entry: tembl:x65923
ID X65923; SV 1; linear; mRNA; STD; HUM; 518 BP.
XX
AC X65923;
XX
DT 13-MAY-1992 (Rel. 31, Created)
DT 18-APR-2005 (Rel. 83, Last updated, Version 11)
XX
DE H.sapiens fau mRNA
XX
KW fau gene.
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 1-518
RA Michiels L.M.R.;
RT ;
RL Submitted (29-APR-1992) to the INSDC.
RL L.M.R. Michiels, University of Antwerp, Dept of Biochemistry,
RL Universiteisplein 1, 2610 Wilrijk, BELGIUM
XX
RN [2]
RP 1-518
RX PUBMED; 8395683.
RA Michiels L., Van der Rauwelaert E., Van Hasselt F., Kas K., Merregaert J.;
RT "fau cDNA encodes a ubiquitin-like-S30 fusion protein and is expressed as
RT an antisense sequence in the Finkel-Biskis-Reilly murine sarcoma virus";
RL Oncogene 8(9):2537-2546(1993).
XX
DR Ensembl-Gn; ENSG00000149806; Homo_sapiens.
DR Ensembl-Tr; ENST00000279259; Homo_sapiens.
DR Ensembl-Tr; ENST00000434372; Homo_sapiens.
DR Ensembl-Tr; ENST00000525297; Homo_sapiens.
DR Ensembl-Tr; ENST00000526555; Homo_sapiens.
DR Ensembl-Tr; ENST00000527548; Homo_sapiens.
DR Ensembl-Tr; ENST00000529259; Homo_sapiens.
DR Ensembl-Tr; ENST00000529639; Homo_sapiens.
DR Ensembl-Tr; ENST00000531743; Homo_sapiens.
XX
FH Key Location/Qualifiers
FH
FT source 1..518
FT /organism="Homo sapiens"
FT /chromosome="11q"
FT /map="13"
FT /mol_type="mRNA"
FT /clone_lib="cDNA"
FT /clone="pUIA 631"
FT /tissue_type="placenta"
FT /db_xref="taxon:9606"
FT misc_feature 57..278
FT /note="ubiquitin like part"
FT CDS 57..458
FT /gene="fau"
FT /db_xref="GDB:135476"
FT /db_xref="GOA:P35544"
FT /db_xref="GOA:P62861"
FT /db_xref="H-InvDB:HIT000322806.14"
FT /db_xref="HGNC:3597"
FT /db_xref="InterPro:IPR000626"
FT /db_xref="InterPro:IPR006846"
FT /db_xref="InterPro:IPR019954"
FT /db_xref="InterPro:IPR019955"
FT /db_xref="InterPro:IPR019956"
FT /db_xref="PDB:2L7R"
FT /db_xref="UniProtKB/Swiss-Prot:P35544"
FT /db_xref="UniProtKB/Swiss-Prot:P62861"
FT /protein_id="CAA46716.1"
FT /translation="MQLFVRAQELHTFEVTGQETVAQIKAHVASLEGIAPEDQVVLLAG
FT APLEDEATLGQCGVEALTTLEVAGRMLGGKVHGSLARAGKVRGQTPKVAKQEKKKKKTG
FT RAKRRMQYNRRFVNVVPTFGKKKGPNANS"
FT misc_feature 98..102
FT /note="nucleolar localization signal"
FT misc_feature 279..458
FT /note="S30 part"
FT polyA_signal 484..489
FT polyA_site 509
XX
SQ Sequence 518 BP; 125 A; 139 C; 148 G; 106 T; 0 other;
ttcctctttc tcgactccat cttcgcggta gctgggaccg ccgttcagtc gccaatatgc 60
agctctttgt ccgcgcccag gagctacaca ccttcgaggt gaccggccag gaaacggtcg 120
cccagatcaa ggctcatgta gcctcactgg agggcattgc cccggaagat caagtcgtgc 180
tcctggcagg cgcgcccctg gaggatgagg ccactctggg ccagtgcggg gtggaggccc 240
tgactaccct ggaagtagca ggccgcatgc ttggaggtaa agttcatggt tccctggccc 300
gtgctggaaa agtgagaggt cagactccta aggtggccaa acaggagaag aagaagaaga 360
agacaggtcg ggctaagcgg cggatgcagt acaaccggcg ctttgtcaac gttgtgccca 420
cctttggcaa gaagaagggc cccaatgcca actcttaagt cttttgtaat tctggctttc 480
tctaataaaa aagccactta gttcagtcaa aaaaaaaa 518
//
|
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.
twofeat outputs a report format file. The default format is 'table'.
Output files for usage example
File: x65923.twofeat
########################################
# Program: twofeat
# Rundate: Mon 15 Jul 2013 12:00:00
# Commandline: twofeat
# [-sequence] tembl:x65923
# -atype polyA_signal
# -btype polyA_site
# -minrange 10
# -maxrange 50
# Report_format: table
# Report_file: x65923.twofeat
########################################
#=======================================
#
# Sequence: X65923 from: 1 to: 518
# HitCount: 1
#=======================================
Start End Strand Score starta enda startb endb
484 509 + 0.000 484 489 509 509
#---------------------------------------
#---------------------------------------
#---------------------------------------
# Total_sequences: 1
# Total_length: 518
# Reported_sequences: 1
# Reported_hitcount: 1
#---------------------------------------
|
Output files for usage example 2
File: x65923.twofeat
##gff-version 3 ##sequence-region X65923 1 518 #!Date 2013-07-15 #!Type DNA #!Source-version EMBOSS 6.6.0.0 X65923 EMBL polyA_signal_sequence 484 489 . + . ID=X65923.6 X65923 EMBL polyA_site 509 509 . + . ID=X65923.7 |
Data files
None.Notes
twofeat is intended for use as a simple data-mining tool to enable you to look for instances of pairs of features that occur near to each other in the same sequence entry.
References
None.Warnings
None.Diagnostic Error Messages
None.Exit status
It always exits with status 0.Known bugs
There is a slight memory leak that must be fixed at some time. This does no affect the results.See also
| Program name | Description |
|---|---|
| extractfeat | Extract features from sequence(s) |
| maskfeat | Write a sequence with masked features |
| showfeat | Display features of a sequence in pretty format |
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.