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dreg |
A regular expression is a way of specifying an ambiguous pattern to search for. Regular expressions are commonly used in some computer programming languages and may be more familiar to some users than to others.
The following is a short guide to regular expressions in EMBOSS:
The following quantifier characters specify the number of time that the character before (in this case 'x') matches:
Quantifiers can follow any of the following types of character specification:
'([AGC]+GGG)|(TTTGGG)'which matches one or more of any one of 'A' or 'G' or 'C' followed by three 'G's or it matches just 'TTTGGG'.
Regular expressions are case-sensitive. The pattern 'AAAA' will not match the sequence 'aaaa'.
% dreg regular expression search of a nucleotide sequence Input sequence(s): tembl:paamir Regular expression pattern: ggtacc Output file [paamir.dreg]: |
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Go to the output files for this example
Mandatory qualifiers: [-sequence] seqall Sequence database USA [-pattern] regexp Regular expression pattern [-outfile] outfile Output file name Optional qualifiers: (none) Advanced qualifiers: (none) General qualifiers: -help boolean Report command line options. More information on associated and general qualifiers can be found with -help -verbose |
Mandatory qualifiers | Allowed values | Default | |
---|---|---|---|
[-sequence] (Parameter 1) |
Sequence database USA | Readable sequence(s) | Required |
[-pattern] (Parameter 2) |
Regular expression pattern | Any regular epression pattern is accepted | Required |
[-outfile] (Parameter 3) |
Output file name | Output file | <sequence>.dreg |
Optional qualifiers | Allowed values | Default | |
(none) | |||
Advanced qualifiers | Allowed values | Default | |
(none) |
ID PAAMIR standard; DNA; PRO; 2167 BP. XX AC X13776; M43175; XX SV X13776.1 XX DT 19-APR-1989 (Rel. 19, Created) DT 17-FEB-1997 (Rel. 50, Last updated, Version 22) XX DE Pseudomonas aeruginosa amiC and amiR gene for aliphatic amidase regulation XX KW aliphatic amidase regulator; amiC gene; amiR gene. XX OS Pseudomonas aeruginosa OC Bacteria; Proteobacteria; gamma subdivision; Pseudomonadaceae; Pseudomonas. XX RN [1] RP 1167-2167 RA Rice P.M.; RT ; RL Submitted (16-DEC-1988) to the EMBL/GenBank/DDBJ databases. RL Rice P.M., EMBL, Postfach 10-2209, Meyerhofstrasse 1, 6900 Heidelberg, FRG. XX RN [2] RP 1167-2167 RX MEDLINE; 89211409. RA Lowe N., Rice P.M., Drew R.E.; RT "Nucleotide sequence of the aliphatic amidase regulator gene of Pseudomonas RT aeruginosa"; RL FEBS Lett. 246:39-43(1989). XX RN [3] RP 1-1292 RX MEDLINE; 91317707. RA Wilson S., Drew R.; RT "Cloning and DNA seqence of amiC, a new gene regulating expression of the RT Pseudomonas aeruginosa aliphatic amidase, and purification of the amiC RT product."; RL J. Bacteriol. 173:4914-4921(1991). XX RN [4] RP 1-2167 RA Rice P.M.; RT ; RL Submitted (04-SEP-1991) to the EMBL/GenBank/DDBJ databases. RL Rice P.M., EMBL, Postfach 10-2209, Meyerhofstrasse 1, 6900 Heidelberg, FRG. XX DR SWISS-PROT; P10932; AMIR_PSEAE. DR SWISS-PROT; P27017; AMIC_PSEAE. DR SWISS-PROT; Q51417; AMIS_PSEAE. [Part of this file has been deleted for brevity] FT phenotype" FT /replace="" FT /gene="amiC" FT misc_feature 1 FT /note="last base of an XhoI site" FT misc_feature 648..653 FT /note="end of 658bp XhoI fragment, deletion in pSW3 causes FT constitutive expression of amiE" FT conflict 1281 FT /replace="g" FT /citation=[3] XX SQ Sequence 2167 BP; 363 A; 712 C; 730 G; 362 T; 0 other; ggtaccgctg gccgagcatc tgctcgatca ccaccagccg ggcgacggga actgcacgat 60 ctacctggcg agcctggagc acgagcgggt tcgcttcgta cggcgctgag cgacagtcac 120 aggagaggaa acggatggga tcgcaccagg agcggccgct gatcggcctg ctgttctccg 180 aaaccggcgt caccgccgat atcgagcgct cgcacgcgta tggcgcattg ctcgcggtcg 240 agcaactgaa ccgcgagggc ggcgtcggcg gtcgcccgat cgaaacgctg tcccaggacc 300 ccggcggcga cccggaccgc tatcggctgt gcgccgagga cttcattcgc aaccgggggg 360 tacggttcct cgtgggctgc tacatgtcgc acacgcgcaa ggcggtgatg ccggtggtcg 420 agcgcgccga cgcgctgctc tgctacccga ccccctacga gggcttcgag tattcgccga 480 acatcgtcta cggcggtccg gcgccgaacc agaacagtgc gccgctggcg gcgtacctga 540 ttcgccacta cggcgagcgg gtggtgttca tcggctcgga ctacatctat ccgcgggaaa 600 gcaaccatgt gatgcgccac ctgtatcgcc agcacggcgg cacggtgctc gaggaaatct 660 acattccgct gtatccctcc gacgacgact tgcagcgcgc cgtcgagcgc atctaccagg 720 cgcgcgccga cgtggtcttc tccaccgtgg tgggcaccgg caccgccgag ctgtatcgcg 780 ccatcgcccg tcgctacggc gacggcaggc ggccgccgat cgccagcctg accaccagcg 840 aggcggaggt ggcgaagatg gagagtgacg tggcagaggg gcaggtggtg gtcgcgcctt 900 acttctccag catcgatacg cccgccagcc gggccttcgt ccaggcctgc catggtttct 960 tcccggagaa cgcgaccatc accgcctggg ccgaggcggc ctactggcag accttgttgc 1020 tcggccgcgc cgcgcaggcc gcaggcaact ggcgggtgga agacgtgcag cggcacctgt 1080 acgacatcga catcgacgcg ccacaggggc cggtccgggt ggagcgccag aacaaccaca 1140 gccgcctgtc ttcgcgcatc gcggaaatcg atgcgcgcgg cgtgttccag gtccgctggc 1200 agtcgcccga accgattcgc cccgaccctt atgtcgtcgt gcataacctc gacgactggt 1260 ccgccagcat gggcggggga ccgctcccat gagcgccaac tcgctgctcg gcagcctgcg 1320 cgagttgcag gtgctggtcc tcaacccgcc gggggaggtc agcgacgccc tggtcttgca 1380 gctgatccgc atcggttgtt cggtgcgcca gtgctggccg ccgccggaag ccttcgacgt 1440 gccggtggac gtggtcttca ccagcatttt ccagaatggc caccacgacg agatcgctgc 1500 gctgctcgcc gccgggactc cgcgcactac cctggtggcg ctggtggagt acgaaagccc 1560 cgcggtgctc tcgcagatca tcgagctgga gtgccacggc gtgatcaccc agccgctcga 1620 tgcccaccgg gtgctgcctg tgctggtatc ggcgcggcgc atcagcgagg aaatggcgaa 1680 gctgaagcag aagaccgagc agctccagga ccgcatcgcc ggccaggccc ggatcaacca 1740 ggccaaggtg ttgctgatgc agcgccatgg ctgggacgag cgcgaggcgc accagcacct 1800 gtcgcgggaa gcgatgaagc ggcgcgagcc gatcctgaag atcgctcagg agttgctggg 1860 aaacgagccg tccgcctgag cgatccgggc cgaccagaac aataacaaga ggggtatcgt 1920 catcatgctg ggactggttc tgctgtacgt tggcgcggtg ctgtttctca atgccgtctg 1980 gttgctgggc aagatcagcg gtcgggaggt ggcggtgatc aacttcctgg tcggcgtgct 2040 gagcgcctgc gtcgcgttct acctgatctt ttccgcagca gccgggcagg gctcgctgaa 2100 ggccggagcg ctgaccctgc tattcgcttt tacctatctg tgggtggccg ccaaccagtt 2160 cctcgag 2167 // |
dreg search of tembl:paamir with pattern GGTACC Matches in PAAMIR PAAMIR 1 GGTACC |
Program name | Description |
---|---|
fuzznuc | Nucleic acid pattern search |
fuzztran | Protein pattern search after translation |
marscan | Finds MAR/SAR sites in nucleic sequences |
Other EMBOSS programs allow you to search for simple patterns and may be easier for the user who has never used regular expressions before: