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dotmatcher |
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dotmatcher generates a dotplot from two input sequences. The dotplot is an intuitive graphical representation of the regions of similarity between two sequences. All positions from the first input sequence are compared with all positions from the second input sequence using a specified substitution matrix. The two sequences are the axes of the rectangular dotplot. Wherever there is "similarity" between a position from each sequence a dot is plotted. The threshold conditions for "similarity" are defined by the user.
All positions from the first input sequence are compared with all positions from the second input sequence and scored, using the specified substitution matrix. This produces a matrix of scores from which local regions of similarity (corresponding to diagonals in the dotplot) are identified. A window of user-specified length is moved along all possible diagonals. Each position in the window corresponds to a pair-wise score from the scoring matrix. The score for the entire window is the sum of the scores for individual positions within it. If the window score is above the user-defined threshold, then a line is plotted on the dotplot corresponding to the window.
% dotmatcher tsw:hba_human tsw:hbb_human -graph cps Draw a threshold dotplot of two sequences Created dotmatcher.ps |
Go to the input files for this example
Go to the output files for this example
Draw a threshold dotplot of two sequences
Version: EMBOSS:6.6.0.0
Standard (Mandatory) qualifiers (* if not always prompted):
[-asequence] sequence Sequence filename and optional format, or
reference (input USA)
[-bsequence] sequence Sequence filename and optional format, or
reference (input USA)
* -graph graph [$EMBOSS_GRAPHICS value, or x11] Graph type
(ps, hpgl, hp7470, hp7580, meta, cps, x11,
tek, tekt, none, data, xterm, png, gif, pdf,
svg)
* -xygraph xygraph [$EMBOSS_GRAPHICS value, or x11] Graph type
(ps, hpgl, hp7470, hp7580, meta, cps, x11,
tek, tekt, none, data, xterm, png, gif, pdf,
svg)
Additional (Optional) qualifiers:
-matrixfile matrix [EBLOSUM62 for protein, EDNAFULL for DNA]
This is the scoring matrix file used when
comparing sequences. By default it is the
file 'EBLOSUM62' (for proteins) or the file
'EDNAFULL' (for nucleic sequences). These
files are found in the 'data' directory of
the EMBOSS installation.
-windowsize integer [10] Window size over which to test
threshold (Integer 3 or more)
-threshold integer [23] Threshold (Integer 0 or more)
Advanced (Unprompted) qualifiers:
-stretch toggle [N] Display a non-proportional graph
Associated qualifiers:
"-asequence" associated qualifiers
-sbegin1 integer Start of the sequence to be used
-send1 integer End of the 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
"-bsequence" associated qualifiers
-sbegin2 integer Start of the sequence to be used
-send2 integer End of the sequence to be used
-sreverse2 boolean Reverse (if DNA)
-sask2 boolean Ask for begin/end/reverse
-snucleotide2 boolean Sequence is nucleotide
-sprotein2 boolean Sequence is protein
-slower2 boolean Make lower case
-supper2 boolean Make upper case
-scircular2 boolean Sequence is circular
-squick2 boolean Read id and sequence only
-sformat2 string Input sequence format
-iquery2 string Input query fields or ID list
-ioffset2 integer Input start position offset
-sdbname2 string Database name
-sid2 string Entryname
-ufo2 string UFO features
-fformat2 string Features format
-fopenfile2 string Features file name
"-graph" associated qualifiers
-gprompt boolean Graph prompting
-gdesc string Graph description
-gtitle string Graph title
-gsubtitle string Graph subtitle
-gxtitle string Graph x axis title
-gytitle string Graph y axis title
-goutfile string Output file for non interactive displays
-gdirectory string Output directory
"-xygraph" associated qualifiers
-gprompt boolean Graph prompting
-gdesc string Graph description
-gtitle string Graph title
-gsubtitle string Graph subtitle
-gxtitle string Graph x axis title
-gytitle string Graph y axis title
-goutfile string Output file for non interactive displays
-gdirectory 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 | ||||
| [-asequence] (Parameter 1) |
sequence | Sequence filename and optional format, or reference (input USA) | Readable sequence | Required |
| [-bsequence] (Parameter 2) |
sequence | Sequence filename and optional format, or reference (input USA) | Readable sequence | Required |
| -graph | graph | Graph type | EMBOSS has a list of known devices, including ps, hpgl, hp7470, hp7580, meta, cps, x11, tek, tekt, none, data, xterm, png, gif, pdf, svg | EMBOSS_GRAPHICS value, or x11 |
| -xygraph | xygraph | Graph type | EMBOSS has a list of known devices, including ps, hpgl, hp7470, hp7580, meta, cps, x11, tek, tekt, none, data, xterm, png, gif, pdf, svg | EMBOSS_GRAPHICS value, or x11 |
| Additional (Optional) qualifiers | ||||
| -matrixfile | matrix | This is the scoring matrix file used when comparing sequences. By default it is the file 'EBLOSUM62' (for proteins) or the file 'EDNAFULL' (for nucleic sequences). These files are found in the 'data' directory of the EMBOSS installation. | Comparison matrix file in EMBOSS data path | EBLOSUM62 for protein EDNAFULL for DNA |
| -windowsize | integer | Window size over which to test threshold | Integer 3 or more | 10 |
| -threshold | integer | Threshold | Integer 0 or more | 23 |
| Advanced (Unprompted) qualifiers | ||||
| -stretch | toggle | Display a non-proportional graph | Toggle value Yes/No | No |
| Associated qualifiers | ||||
| "-asequence" associated sequence qualifiers | ||||
| -sbegin1 -sbegin_asequence |
integer | Start of the sequence to be used | Any integer value | 0 |
| -send1 -send_asequence |
integer | End of the sequence to be used | Any integer value | 0 |
| -sreverse1 -sreverse_asequence |
boolean | Reverse (if DNA) | Boolean value Yes/No | N |
| -sask1 -sask_asequence |
boolean | Ask for begin/end/reverse | Boolean value Yes/No | N |
| -snucleotide1 -snucleotide_asequence |
boolean | Sequence is nucleotide | Boolean value Yes/No | N |
| -sprotein1 -sprotein_asequence |
boolean | Sequence is protein | Boolean value Yes/No | N |
| -slower1 -slower_asequence |
boolean | Make lower case | Boolean value Yes/No | N |
| -supper1 -supper_asequence |
boolean | Make upper case | Boolean value Yes/No | N |
| -scircular1 -scircular_asequence |
boolean | Sequence is circular | Boolean value Yes/No | N |
| -squick1 -squick_asequence |
boolean | Read id and sequence only | Boolean value Yes/No | N |
| -sformat1 -sformat_asequence |
string | Input sequence format | Any string | |
| -iquery1 -iquery_asequence |
string | Input query fields or ID list | Any string | |
| -ioffset1 -ioffset_asequence |
integer | Input start position offset | Any integer value | 0 |
| -sdbname1 -sdbname_asequence |
string | Database name | Any string | |
| -sid1 -sid_asequence |
string | Entryname | Any string | |
| -ufo1 -ufo_asequence |
string | UFO features | Any string | |
| -fformat1 -fformat_asequence |
string | Features format | Any string | |
| -fopenfile1 -fopenfile_asequence |
string | Features file name | Any string | |
| "-bsequence" associated sequence qualifiers | ||||
| -sbegin2 -sbegin_bsequence |
integer | Start of the sequence to be used | Any integer value | 0 |
| -send2 -send_bsequence |
integer | End of the sequence to be used | Any integer value | 0 |
| -sreverse2 -sreverse_bsequence |
boolean | Reverse (if DNA) | Boolean value Yes/No | N |
| -sask2 -sask_bsequence |
boolean | Ask for begin/end/reverse | Boolean value Yes/No | N |
| -snucleotide2 -snucleotide_bsequence |
boolean | Sequence is nucleotide | Boolean value Yes/No | N |
| -sprotein2 -sprotein_bsequence |
boolean | Sequence is protein | Boolean value Yes/No | N |
| -slower2 -slower_bsequence |
boolean | Make lower case | Boolean value Yes/No | N |
| -supper2 -supper_bsequence |
boolean | Make upper case | Boolean value Yes/No | N |
| -scircular2 -scircular_bsequence |
boolean | Sequence is circular | Boolean value Yes/No | N |
| -squick2 -squick_bsequence |
boolean | Read id and sequence only | Boolean value Yes/No | N |
| -sformat2 -sformat_bsequence |
string | Input sequence format | Any string | |
| -iquery2 -iquery_bsequence |
string | Input query fields or ID list | Any string | |
| -ioffset2 -ioffset_bsequence |
integer | Input start position offset | Any integer value | 0 |
| -sdbname2 -sdbname_bsequence |
string | Database name | Any string | |
| -sid2 -sid_bsequence |
string | Entryname | Any string | |
| -ufo2 -ufo_bsequence |
string | UFO features | Any string | |
| -fformat2 -fformat_bsequence |
string | Features format | Any string | |
| -fopenfile2 -fopenfile_bsequence |
string | Features file name | Any string | |
| "-graph" associated graph qualifiers | ||||
| -gprompt | boolean | Graph prompting | Boolean value Yes/No | N |
| -gdesc | string | Graph description | Any string | |
| -gtitle | string | Graph title | Any string | Dotmatcher: $(asequence.usa) vs $(bsequence.usa) |
| -gsubtitle | string | Graph subtitle | Any string | |
| -gxtitle | string | Graph x axis title | Any string | $(asequence.name) |
| -gytitle | string | Graph y axis title | Any string | $(bsequence.name) |
| -goutfile | string | Output file for non interactive displays | Any string | |
| -gdirectory | string | Output directory | Any string | |
| "-xygraph" associated xygraph qualifiers | ||||
| -gprompt | boolean | Graph prompting | Boolean value Yes/No | N |
| -gdesc | string | Graph description | Any string | |
| -gtitle | string | Graph title | Any string | Dotmatcher: $(asequence.usa) vs $(bsequence.usa) |
| -gsubtitle | string | Graph subtitle | Any string | |
| -gxtitle | string | Graph x axis title | Any string | $(asequence.name) |
| -gytitle | string | Graph y axis title | Any string | $(bsequence.name) |
| -goutfile | string | Output file for non interactive displays | Any string | |
| -gdirectory | 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 |
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.
ID HBA_HUMAN Reviewed; 142 AA.
AC P69905; P01922; Q1HDT5; Q3MIF5; Q53F97; Q96KF1; Q9NYR7; Q9UCM0;
DT 21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2007, sequence version 2.
DT 13-JUN-2012, entry version 108.
DE RecName: Full=Hemoglobin subunit alpha;
DE AltName: Full=Alpha-globin;
DE AltName: Full=Hemoglobin alpha chain;
GN Name=HBA1;
GN and
GN Name=HBA2;
OS Homo sapiens (Human).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini;
OC Catarrhini; Hominidae; Homo.
OX NCBI_TaxID=9606;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA] (HBA1).
RX MEDLINE=81088339; PubMed=7448866; DOI=10.1016/0092-8674(80)90347-5;
RA Michelson A.M., Orkin S.H.;
RT "The 3' untranslated regions of the duplicated human alpha-globin
RT genes are unexpectedly divergent.";
RL Cell 22:371-377(1980).
RN [2]
RP NUCLEOTIDE SEQUENCE [MRNA] (HBA2).
RX MEDLINE=80137531; PubMed=6244294;
RA Wilson J.T., Wilson L.B., Reddy V.B., Cavallesco C., Ghosh P.K.,
RA Deriel J.K., Forget B.G., Weissman S.M.;
RT "Nucleotide sequence of the coding portion of human alpha globin
RT messenger RNA.";
RL J. Biol. Chem. 255:2807-2815(1980).
RN [3]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA] (HBA2).
RX MEDLINE=81175088; PubMed=6452630; DOI=10.1073/pnas.77.12.7054;
RA Liebhaber S.A., Goossens M.J., Kan Y.W.;
RT "Cloning and complete nucleotide sequence of human 5'-alpha-globin
RT gene.";
RL Proc. Natl. Acad. Sci. U.S.A. 77:7054-7058(1980).
RN [4]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=6946451; DOI=10.1073/pnas.78.8.5041;
RA Orkin S.H., Goff S.C., Hechtman R.L.;
RT "Mutation in an intervening sequence splice junction in man.";
RL Proc. Natl. Acad. Sci. U.S.A. 78:5041-5045(1981).
RN [5]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND VARIANT LYS-32.
RX MEDLINE=21303311; PubMed=11410421;
RA Zhao Y., Xu X.;
RT "Alpha2(CD31 AGG-->AAG, Arg-->Lys) causing non-deletional alpha-
RT thalassemia in a Chinese family with HbH disease.";
[Part of this file has been deleted for brevity]
FT /FTId=VAR_002841.
FT VARIANT 132 132 S -> P (in Questembert; highly unstable;
FT causes alpha-thalassemia).
FT /FTId=VAR_002843.
FT VARIANT 134 134 S -> R (in Val de Marne; O(2) affinity
FT up).
FT /FTId=VAR_002844.
FT VARIANT 136 136 V -> E (in Pavie).
FT /FTId=VAR_002845.
FT VARIANT 137 137 L -> M (in Chicago).
FT /FTId=VAR_002846.
FT VARIANT 137 137 L -> P (in Bibba; unstable; causes alpha-
FT thalassemia).
FT /FTId=VAR_002847.
FT VARIANT 137 137 L -> R (in Toyama).
FT /FTId=VAR_035242.
FT VARIANT 139 139 S -> P (in Attleboro; O(2) affinity up).
FT /FTId=VAR_002848.
FT VARIANT 140 140 K -> E (in Hanamaki; O(2) affinity up).
FT /FTId=VAR_002849.
FT VARIANT 140 140 K -> T (in Tokoname; O(2) affinity up).
FT /FTId=VAR_002850.
FT VARIANT 141 141 Y -> H (in Rouen/Ethiopia; O(2) affinity
FT up).
FT /FTId=VAR_002851.
FT VARIANT 142 142 R -> C (in Nunobiki; O(2) affinity up).
FT /FTId=VAR_002852.
FT VARIANT 142 142 R -> H (in Suresnes; O(2) affinity up).
FT /FTId=VAR_002854.
FT VARIANT 142 142 R -> L (in Legnano; O(2) affinity up).
FT /FTId=VAR_002853.
FT VARIANT 142 142 R -> P (in Singapore).
FT /FTId=VAR_002855.
FT CONFLICT 10 10 N -> H (in Ref. 13; BAD97112).
FT HELIX 5 16
FT HELIX 17 21
FT HELIX 22 36
FT HELIX 38 43
FT HELIX 54 72
FT HELIX 74 76
FT HELIX 77 80
FT HELIX 82 90
FT HELIX 97 113
FT TURN 115 117
FT HELIX 120 137
FT TURN 138 140
SQ SEQUENCE 142 AA; 15258 MW; 15E13666573BBBAE CRC64;
MVLSPADKTN VKAAWGKVGA HAGEYGAEAL ERMFLSFPTT KTYFPHFDLS HGSAQVKGHG
KKVADALTNA VAHVDDMPNA LSALSDLHAH KLRVDPVNFK LLSHCLLVTL AAHLPAEFTP
AVHASLDKFL ASVSTVLTSK YR
//
|
ID HBB_HUMAN Reviewed; 147 AA.
AC P68871; A4GX73; B2ZUE0; P02023; Q13852; Q14481; Q14510; Q45KT0;
AC Q549N7; Q6FI08; Q6R7N2; Q8IZI1; Q9BX96; Q9UCD6; Q9UCP8; Q9UCP9;
DT 21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2007, sequence version 2.
DT 13-JUN-2012, entry version 108.
DE RecName: Full=Hemoglobin subunit beta;
DE AltName: Full=Beta-globin;
DE AltName: Full=Hemoglobin beta chain;
DE Contains:
DE RecName: Full=LVV-hemorphin-7;
GN Name=HBB;
OS Homo sapiens (Human).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini;
OC Catarrhini; Hominidae; Homo.
OX NCBI_TaxID=9606;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX MEDLINE=77126403; PubMed=1019344;
RA Marotta C., Forget B., Cohen-Solal M., Weissman S.M.;
RT "Nucleotide sequence analysis of coding and noncoding regions of human
RT beta-globin mRNA.";
RL Prog. Nucleic Acid Res. Mol. Biol. 19:165-175(1976).
RN [2]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX MEDLINE=81064667; PubMed=6254664; DOI=10.1016/0092-8674(80)90428-6;
RA Lawn R.M., Efstratiadis A., O'Connell C., Maniatis T.;
RT "The nucleotide sequence of the human beta-globin gene.";
RL Cell 21:647-651(1980).
RN [3]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND VARIANT LYS-7.
RX PubMed=16175509; DOI=10.1086/491748;
RA Wood E.T., Stover D.A., Slatkin M., Nachman M.W., Hammer M.F.;
RT "The beta-globin recombinational hotspot reduces the effects of strong
RT selection around HbC, a recently arisen mutation providing resistance
RT to malaria.";
RL Am. J. Hum. Genet. 77:637-642(2005).
RN [4]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA Lu L., Hu Z.H., Du C.S., Fu Y.S.;
RT "DNA sequence of the human beta-globin gene isolated from a healthy
RT Chinese.";
RL Submitted (JUN-1997) to the EMBL/GenBank/DDBJ databases.
RN [5]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND VARIANT ARG-113.
RA Cabeda J.M., Correia C., Estevinho A., Cardoso C., Amorim M.L.,
RA Cleto E., Vale L., Coimbra E., Pinho L., Justica B.;
RT "Unexpected patterns of globin mutations in thalassemia patients from
RT north of Portugal.";
[Part of this file has been deleted for brevity]
FT VARIANT 141 141 A -> V (in Puttelange; polycythemia; O(2)
FT affinity up).
FT /FTId=VAR_003082.
FT VARIANT 142 142 L -> R (in Olmsted; unstable).
FT /FTId=VAR_003083.
FT VARIANT 143 143 A -> D (in Ohio; O(2) affinity up).
FT /FTId=VAR_003084.
FT VARIANT 144 144 H -> D (in Rancho Mirage).
FT /FTId=VAR_003085.
FT VARIANT 144 144 H -> P (in Syracuse; O(2) affinity up).
FT /FTId=VAR_003087.
FT VARIANT 144 144 H -> Q (in Little Rock; O(2) affinity
FT up).
FT /FTId=VAR_003086.
FT VARIANT 144 144 H -> R (in Abruzzo; O(2) affinity up).
FT /FTId=VAR_003088.
FT VARIANT 145 145 K -> E (in Mito; O(2) affinity up).
FT /FTId=VAR_003089.
FT VARIANT 146 146 Y -> C (in Rainier; O(2) affinity up).
FT /FTId=VAR_003090.
FT VARIANT 146 146 Y -> H (in Bethesda; O(2) affinity up).
FT /FTId=VAR_003091.
FT VARIANT 147 147 H -> D (in Hiroshima; O(2) affinity up).
FT /FTId=VAR_003092.
FT VARIANT 147 147 H -> L (in Cowtown; O(2) affinity up).
FT /FTId=VAR_003093.
FT VARIANT 147 147 H -> P (in York; O(2) affinity up).
FT /FTId=VAR_003094.
FT VARIANT 147 147 H -> Q (in Kodaira; O(2) affinity up).
FT /FTId=VAR_003095.
FT CONFLICT 26 26 Missing (in Ref. 15; ACD39349).
FT CONFLICT 42 42 F -> L (in Ref. 13; AAR96398).
FT HELIX 6 16
FT TURN 21 23
FT HELIX 24 35
FT HELIX 37 42
FT HELIX 44 46
FT HELIX 52 57
FT HELIX 59 77
FT TURN 78 80
FT HELIX 82 94
FT TURN 95 97
FT HELIX 102 119
FT HELIX 120 122
FT HELIX 125 142
FT HELIX 144 146
SQ SEQUENCE 147 AA; 15998 MW; A31F6D621C6556A1 CRC64;
MVHLTPEEKS AVTALWGKVN VDEVGGEALG RLLVVYPWTQ RFFESFGDLS TPDAVMGNPK
VKAHGKKVLG AFSDGLAHLD NLKGTFATLS ELHCDKLHVD PENFRLLGNV LVCVLAHHFG
KEFTPPVQAA YQKVVAGVAN ALAHKYH
//
|
The output is to the specified graphics device.
The results can be output in one of several formats by using the command-line qualifier -graph xxx, where 'xxx' is replaced by the name of the required device. Support depends on the availability of third-party software packages.
The device names that output to a file are: ps (postscript), cps (colourps), png, gif, pdf, svg, hpgl, hp7470, hp7580, das, data.
The other available device names are: meta, x11 (xwindows), tek (tek4107t), tekt (tektronix), xterm, text.
Output can be turned off by specifying none (null).
See: http://emboss.sf.net/docs/themes/GraphicsDevices.html for further information on supported devices.
For protein sequences EBLOSUM62 is used for the substitution matrix. For nucleotide sequence, EDNAFULL is used. Others can be specified.
EMBOSS data files are distributed with the application and stored in the standard EMBOSS data directory, which is defined by the EMBOSS environment variable EMBOSS_DATA.
To see the available EMBOSS data files, run:
% embossdata -showall
To fetch one of the data files (for example 'Exxx.dat') into your current directory for you to inspect or modify, run:
% embossdata -fetch -file Exxx.dat
Users can provide their own data files in their own directories. Project specific files can be put in the current directory, or for tidier directory listings in a subdirectory called ".embossdata". Files for all EMBOSS runs can be put in the user's home directory, or again in a subdirectory called ".embossdata".
The directories are searched in the following order:
Where the two sequences have substantial regions of similarity, the dots line up to form diagonal lines. It is possible to see at a glance such local regions of similarity. It is also easy to see other features such as repeats (which form parallel diagonal lines), and insertions or deletions (which form breaks or discontinuities in the diagonal lines).
| Program name | Description |
|---|---|
| dotpath | Draw a non-overlapping wordmatch dotplot of two sequences |
| dottup | Display a wordmatch dotplot of two sequences |
| polydot | Draw dotplots for all-against-all comparison of a sequence set |
Please report all bugs to the EMBOSS bug team (emboss-bug © emboss.open-bio.org) not to the original author.