Sponsored Content
Top Forums Shell Programming and Scripting Getting unique sequences from multiple fasta file Post 303022719 by Ibk on Wednesday 5th of September 2018 04:31:26 PM
Old 09-05-2018
Thanks vgersh99. Code worked perfectly
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

trying to grep -v multiple changing sequences from a file

Hello All - I am looking for help on how to solve a re-occuring problem. I have a file with certain sequences in it that need to be removed. The sequences are always different but the fix is always the same remove those sequences and leave the rest. Another team ID's the bad sequences and then I... (3 Replies)
Discussion started by: candyluv030
3 Replies

2. UNIX for Dummies Questions & Answers

Breaking a fasta formatted file into multiple files containing each gene separately

Hey, I've been trying to break a massive fasta formatted file into files containing each gene separately. Could anyone help me? I've tried to use the following code but i've recieved errors every time: for i in *.rtf.out do awk '/^>/{f=++d".fasta"} {print > $i.out}' $i done (1 Reply)
Discussion started by: Ann Mc Cartney
1 Replies

3. Shell Programming and Scripting

Shell script for changing the accession number of DNA sequences in a FASTA file

Hi, I am having a file of dna sequences in fasta format which look like this: >admin_1_45 atatagcaga >admin_1_46 atatagcagaatatatat with many such thousands of sequences in a single file. I want to the replace the accession Id "admin_1_45" similarly in following sequences to... (5 Replies)
Discussion started by: margarita
5 Replies

4. Shell Programming and Scripting

Extract sequences from a FASTA file based on another file

I have two files. File1 is shown below. >153L:B|PDBID|CHAIN|SEQUENCE RTDCYGNVNRIDTTGASCKTAKPEGLSYCGVSASKKIAERDLQAMDRYKTIIKKVGEKLCVEPAVIAGIISRESHAGKVL KNGWGDRGNGFGLMQVDKRSHKPQGTWNGEVHITQGTTILINFIKTIQKKFPSWTKDQQLKGGISAYNAGAGNVRSYARM DIGTTHDDYANDVVARAQYYKQHGY >16VP:A|PDBID|CHAIN|SEQUENCE... (7 Replies)
Discussion started by: nelsonfrans
7 Replies

5. Shell Programming and Scripting

Count and search by sequence in multiple fasta file

Hello, I have 10 fasta files with sequenced reads information with read sizes from 15 - 35 . I have combined the reads and collapsed in to unique reads and filtered for sizes 18 - 26 bp long unique reads. Now i wanted to count each unique read appearance in all the fasta files and make a table... (5 Replies)
Discussion started by: empyrean
5 Replies

6. Shell Programming and Scripting

Shorten header of protein sequences in fasta file

I have a fasta file as follows >sp|O15090|FABP4_HUMAN Fatty acid-binding protein, adipocyte OS=Homo sapiens GN=FABP4 PE=1 SV=3 MCDAFVGTWKLVSSENFDDYMKEVGVGFATRKVAGMAKPNMIISVNGDVITIKSESTFKN TEISFILGQEFDEVTADDRKVKSTITLDGGVLVHVQKWDGKSTTIKRKREDDKLVVECVM KGVTSTRVYERA >sp|L18484|AP2A2_RAT AP-2... (3 Replies)
Discussion started by: alexypaul
3 Replies

7. UNIX for Dummies Questions & Answers

Select distinct sequences from fasta file and list

Hi How can I extract sequences from a fasta file with respect a certain criteria? The beginning of my file (containing in total more than 1000 sequences) looks like this: >H8V34IS02I59VP SDACNDLTIALLQIAREVRVCNPTFSFRWHPQVKDEVMRECFDCIRQGLG YPSMRNDPILIANCMNWHGHPLEEARQWVHQACMSPCPSTKHGFQPFRMA... (6 Replies)
Discussion started by: Marion MPI
6 Replies

8. UNIX for Beginners Questions & Answers

How to count the length of fasta sequences?

I could calculate the length of entire fasta sequences by following command, awk '/^>/{if (l!="") print l; print; l=0; next}{l+=length($0)}END{print l}' unique.fasta But, I need to calculate the length of a particular fasta sequence specified/listed in another txt file. The results to to be... (14 Replies)
Discussion started by: dineshkumarsrk
14 Replies

9. Shell Programming and Scripting

Shorten header of protein sequences in fasta file to only organism name

I have a fasta file as follows >sp|Q8WWQ8|STAB2_HUMAN Stabilin-2 OS=Homo sapiens OX=9606 GN=STAB2 PE=1 SV=3 MMLQHLVIFCLGLVVQNFCSPAETTGQARRCDRKSLLTIRTECRSCALNLGVKCPDGYTM ITSGSVGVRDCRYTFEVRTYSLSLPGCRHICRKDYLQPRCCPGRWGPDCIECPGGAGSPC NGRGSCAEGMEGNGTCSCQEGFGGTACETCADDNLFGPSCSSVCNCVHGVCNSGLDGDGT... (3 Replies)
Discussion started by: jerrild
3 Replies

10. UNIX for Beginners Questions & Answers

How to add specific bases at the beginning and ending of all the fasta sequences?

Hi, I have to add 7 bases of specific nucleotide at the beginning and ending of all the fasta sequences of a file. For example, I have a multi fasta file namely test.fasta as given below test.fasta >TalAA18_Xoo_CIAT_NZ_CP033194.1:_2936369-2939570:+1... (1 Reply)
Discussion started by: dineshkumarsrk
1 Replies
BP_MASK_BY_SEARCH(1p)					User Contributed Perl Documentation				     BP_MASK_BY_SEARCH(1p)

NAME
mask_by_search - mask sequence(s) based on its alignment results SYNOPSIS
mask_by_search.pl -f blast genomefile blastfile.bls > maskedgenome.fa DESCRIPTION
Mask sequence based on significant alignments of another sequence. You need to provide the report file and the entire sequence data which you want to mask. By default this will assume you have done a TBLASTN (or TFASTY) and try and mask the hit sequence assuming you've provided the sequence file for the hit database. If you would like to do the reverse and mask the query sequence specify the -t/--type query flag. This is going to read in the whole sequence file into memory so for large genomes this may fall over. I'm using DB_File to prevent keeping everything in memory, one solution is to split the genome into pieces (BEFORE you run the DB search though, you want to use the exact file you BLASTed with as input to this program). Below the double dash (--) options are of the form --format=fasta or --format fasta or you can just say -f fasta By -f/--format I mean either are acceptable options. The =s or =n or =c specify these arguments expect a 'string' Options: -f/--format=s Search report format (fasta,blast,axt,hmmer,etc) -sf/--sformat=s Sequence format (fasta,genbank,embl,swissprot) --hardmask (booelean) Hard mask the sequence with the maskchar [default is lowercase mask] --maskchar=c Character to mask with [default is N], change to 'X' for protein sequences -e/--evalue=n Evalue cutoff for HSPs and Hits, only mask sequence if alignment has specified evalue or better -o/--out/ --outfile=file Output file to save the masked sequence to. -t/--type=s Alignment seq type you want to mask, the 'hit' or the 'query' sequence. [default is 'hit'] --minlen=n Minimum length of an HSP for it to be used in masking [default 0] -h/--help See this help information AUTHOR - Jason Stajich Jason Stajich, jason-at-bioperl-dot-org. perl v5.14.2 2012-03-02 BP_MASK_BY_SEARCH(1p)
All times are GMT -4. The time now is 07:09 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy