An Error By Using Ncbi-Blast-2.2.25+ (On Windows)
Hi all I downloaded blast+ software package (for windows), and installed like theBookshelf; to run it i used this "ncbi-blast-2.2.25+/bin/blastn –query text_query.txt –db refseq_genomic –out...
View ArticleBlast Two Sequences
Hello all! I have a list of pairs of proteins and I want to compare speed and accuracy of "BLAST Two Sequences" to a Smith-Waterman program for alignment. I know there is a "Blast Two Sequences" option...
View ArticleGenomic Sequences For Drosophila In Refseq
Pscan was recommended to do TF enrichment previously. RefSeq (for human, mouse, and drosophila, e.g. NM_000546) in one of the acceptable identifiers. I have a list of genes in a non-model organism, and...
View ArticleAlignment Matrix
Dear all,I have a problem with the following website:http://www.nature.com/scitable/topicpage/basic-local-alignment-search-tool-blast-29096More specific, I have a problem with the matrix (completely...
View ArticleHow To Automate Primer Blast With Perl?
Hey all!does any one have a PERL script for automating the PRIMER BLAST tool.... i.e. i want a script which will submit my fasta file and parameters to Primer BLAST and retrieve the output. I'm stuck...
View ArticleBlast Against Pdb Standalone Version
HiI have always used the online service of pBlast and now I am a bit confused since I want to use its standalone version. My aim is to blast a protein fasta sequence against PDB and save all the pdb...
View ArticleNcbi Blast Command Line Align Two Sequences
I want to align 2 sequences using ncbi blast command line or bioperl script, I am new to blast and I found out that it compare a sequence to a database but what I need it to compare two sequences like...
View ArticleProblems With Blast And Nr Database
I'm familiar with the BLAST family of software: I've used both the old interface (blastall, formatdb, et al) and the new interface (blastx, makeblastdb, et al). However, I've always used it with...
View ArticleNcbi Standalone Blast -Outfmt
Hi,I want to include the % of query coverage in my standalone blast result. Can anyone help me with this ??RegardsBHARAT
View ArticleHow To Merge Contiguous Blast Hsps! (-M 8 Tab)
Hi, guys! I performed blastx (-m 8) using a query file of many sequences, and for each target sequence, the output contains many fragmental hsps of significance, and these hsps have overlap positions...
View ArticleWhy Is Makeprofiledb Throwing Confusing Defline Errors?
I have an alignment file [alignment.aln]:>lcl|21974 MRLQLILTITLLLTSFMGYRDAAVIQGKTERSAMKMRKLLQILHKNSCGCNDDDSDGDDCCFGTCLDNACWPVKKRSSAII can make a blastdb with this file:makeblastdb -in alignment.aln...
View ArticleComputing The Bit Score, E-Value And P-Values In Blast
Hello, I'm having some trouble with calcualting the following things; Bit score E-valueP-value I know the formulas, but I just don't know how to apply them to the following sequence:...
View ArticleHow To Define And Calculate Cip ( A New Parameters For Blast Analysis Of Cip...
IN the paper “Improved criteria and comparative genomics tool provide new insights into grass paleogenomics " they said:To increase the significance of inter-specific sequence alignments for inferring...
View ArticleIdentity Cutoff In Blast Output
I was wondering if there is any easy way to do an identity cutoff (e.g. Sequences down to 95% Id) from the blast output locally .I had a look at blastall usage options but haven't seen any flag (or...
View ArticleI am running blast over internet using biopython but its giving connection...
import Bio import csv from Bio.Blast import NCBIXML from Bio.Blast import NCBIWWW q_id = [] with open('C:\Users\Nadia\Desktop\imran-sequenceIDs.csv','rb') as f: reader=csv.reader(f) for row in...
View ArticleIs There A Query Parameter For The Online Blast That Would Filter For Hits...
Hello,I am running blastn, blastx and tblastx searches on NCBI's nt, est, nr and HTGS databases using transcriptome data containing ~56,000 contigs. I have been able to produce biopython scripts to run...
View ArticleCan Biopython Parse Gzipped Xml From Blast?
I have been using blast+ with the xml output format (-m7 in the older days, and outfmt 5 with ncbi-blast+). Since the XML files are huge, I have been gzipping them. I have also been using Biopython to...
View ArticleAlternative to blast, faster but less sensitive?
I am looking for an alternative to blast that can search the UniProt sequence database in a faster way by losing some sensitivity. I am interesting in finding only relatively close homolog sequences,...
View ArticleHow To Produce An Analysis Report From Blast Output ?
Hello, is there a tool for processing the blast output and perform a statistical analysis of the alignment? For example a plot of the position of the mismatches? I cant believe that there is no...
View ArticleDna Sequencers- Required Matching Errors For 150 Bps
I am doing some experiment using BowTie and WHAM which are short read aligners that aligns short DNA sequences (reads) to the human genome like BLAST. In WHAM, it is specified that for 75 bps reads, it...
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