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A software tool for fast, memory-efficient counting of k-mers in DNA. A k-mer is a substring of length k, and counting the occurrences of all such substrings is a central step in many analyses of DNA sequence. JELLYFISH can count k-mers quickly by using an efficient encoding of a hash table and by exploiting the compare-and-swap CPU instruction to increase parallelism. Jellyfish is a command-line program that reads FASTA and multi-FASTA files containing DNA sequences. It outputs its k-mer counts in an binary format, which can be translated into a human-readable text format using the jellyfish dump command., THIS RESOURCE IS NO LONGER IN SERVICE. Documented on September 16,2025.

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• SciCrunch
• 13 years ago - by Anonymous

THIS RESOURCE IS NO LONGER IN SERVICE. Documented on October 19, 2020.A program to align short sequences that has been developed with an innovative strategy to perform fast gapped and ungapped alignment onto a reference sequence. It supports several data formats and allows the user to modulate very finely the sensitivity of the alignments. The program is designed to handle huge amounts of short reads generated by ILLUMINA, SOLiD and Roche-454 technology. The optimization of the internal data structure and a filter based on precomputed short-word alignments allow the program to skip false positives in the extension phase, thus reducing the execution time without loss of sensitivity. The final alignment is performed by dynamic programming., THIS RESOURCE IS NO LONGER IN SERVICE. Documented on September 16,2025.

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• SciCrunch
• 13 years ago - by Anonymous

A collection of software programs for population genetics analyses from NGS (Next-Generation Sequencing) data, taking into account its statistical uncertainty. The methods implemented in these programs do not rely on SNP (Single Nucleotide Polymorphism) or genotype calling, and are particularly suitable for low sequencing depth data.

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• SciCrunch
• 13 years ago - by Anonymous

A mapping program for Next Generation Sequencing reads that is more than twice as fast as BWA, while achieving a mapping sensitivity similar to Stampy or Bowtie2. NextGenMap uses a memory efficient index structure (hash table) to store the positions of all 13-mers present in the reference genome. This index enables a quick identification of potential mapping regions for every read. Unlike other methods, NextGenMap dynamically determines for each read individually how many of the potential mapping regions have to be evaluated by a pairwise sequence alignment. Moreover, NextGenMap uses fast SIMD instructions (SSE) to accelerate the alignment calculations on the CPU. If available NextGenMap calculates the alignments on the GPU (using OpenCL/CUDA) resulting in a runtime reduction of another 20 - 50 %, depending on the underlying data set.

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• SciCrunch
• 13 years ago - by Anonymous

Software designed to map short reads generated with the Illumina platform to reference genome assemblies; in a fast and memory-efficient mannerl. Currently Supported Features: * Output in SAM format * Indels up to 8 bp (4 bp deletions and 4 bp insertions) * Paired-end mapping ** Discordant option to generate mapping file ready for VariationHunter to detect structural variants. * One end anchored (OEA) map locations for novel sequence insertion detection with NovelSeq * Matepair library mapping (long inserts with RF orientation). Planned Features: * Multithreading

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• SciCrunch
• 13 years ago - by Anonymous

A reference-guided assembler comprising of two main modular programs: MosaikBuild and MosaikAligner. MosaikBuild converts various sequence formats into Mosaik?s native read format. MosaikAligner pairwise aligns each read to a specified series of reference sequences and produces BAMs as outputs. At this time, the workflow consists of supplying sequences in FASTA, FASTQ, Illumina Bustard & Gerald, or SRF file formats and producing results in the BAM format. Unlike many current read aligners, MOSAIK produces gapped alignments using the Smith-Waterman algorithm. MOSAIK is written in highly portable C++ and currently targetted for the following platforms: Microsoft Windows, Apple Mac OS X, FreeBSD, and Linux operating systems. Other platforms can easily be supported upon request. MOSAIK is multithreaded. If you have a machine with 8 processors, you can use all 8 processors to align reads faster while using the same memory footprint as when using one processor. MOSAIK supports multiple sequencing technologies. In addition to legacy technologies such as Sanger capillary sequencing, our program supports next generation technologies such as Roche 454, Illumina, AB SOLiD, and experimental support for the Helicos Heliscope.

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• SciCrunch
• 13 years ago - by Anonymous

A set of programs that map and assemble fixed-length Solexa/SOLiD reads in a fast and accurate way.

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• SciCrunch
• 13 years ago - by Anonymous

A set of software tools ( Reaper, Tally and Sequence Imp) designed to streamline the analysis of next-generation sequencing data. Although designed with small RNA sequence analysis in mind the tools can be used to address issues facing next-generation sequencing in general.

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• SciCrunch
• 13 years ago - by Anonymous

Software to align single and paired end reads as short as 14 nt and of arbitrarily long length. Can detect short and long distance splicing, including interchromosomal splicing, in individual reads, using probabilistic models or database of known splice sites. Permits SNP-tolerant alignment to reference space of all possible combinations of major and minor alleles, and can align reads from bisulfite-treated DNA for study of methylation state.

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• SciCrunch
• 13 years ago - by Anonymous

THIS RESOURCE IS NO LONGER IN SERVICE. Documented on May 3rd,2023. A software program designed to accurately map sequence data obtained from next-generation sequencing machines (specifically that of Solexa/Illumina) back to a genome of any size. By using the posterior probability of mapping a given read to a specific genomic loation, we are able to account for repetitive reads by distributing them across several regions in the genome. In addition, the output of the program is created in such a way that it can be easily viewed through other free and readily- available programs. Several benchmark data sets were created with spiked-in duplicate regions, and GNUMAP was able to more accurately account for these duplicate regions.

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• SciCrunch
• 13 years ago - by Anonymous

Bradley Voytek''''s blog is where he tries out new ideas. He will often be wrong, but that''''s the point. He is a Neuroscientist studying human cognition, neuroplasticity, and brain computer interfacing. Into really geeky stuff. World zombie neuroscience expert. Also runs brainSCANr.com with his wife, Jessica.

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• SciCrunch
• 15 years ago - by Anonymous

Software program (based on CUSHAW2) designed and optimized for Kepler-based GPUs, but still workable on earlier-generation Fermi-based ones.

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• SciCrunch
• 13 years ago - by Anonymous

Software package for next-generation sequencing read alignment that is fast and parallel gapped read alignment to large genomes, such as the human genome.

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• SciCrunch
• 13 years ago - by Anonymous

This blog belongs to me, Dave J Hayes PhD, a Neuroscientist at the University of Ottawa''s Institute of Mental Health Research. My research focuses on the neuroscience of motivation and emotion particularly regarding how brains and people respond to aversive and rewarding things in their environment. A neurosphere is a free-floating group of neural stem cells which can multiply, outside of their natural environment, and retain the ability to differentiate into functional brain cells. I don''t work on neurospheres. However, i like the metaphor of a group of people coming together, outside of their natural environment, through their interest in all things neuro which, incidentally, is everything. The sphere of human thought.

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• SciCrunch
• 15 years ago - by Anonymous

Software pipeline to parse, map, quantify and manage large quantities of sequence data. CASHX is a set of tools that can be used together, or as independent modules on their own. The reference genome alignment tools can be used with any reference sequence in fasta format. The pipeline was designed and tested using Arabidopsis thaliana small RNA reads generated using an Illumina 1G.

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• SciCrunch
• 13 years ago - by Anonymous

Software ultrafast memory efficient tool for aligning sequencing reads. Bowtie is short read aligner.

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• SciCrunch
• 13 years ago - by Anonymous

Python package for analysing immune receptor sequences (antibodies and T cell receptors).

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• SciCrunch
• 12 years ago - by Anonymous

A Web-based Tool for High-throughput Primer and Probe Design. The program has its different utilities available on its web server. A standalone version is also available. Algorithms: * SSPD - Sequence Specific Primer Design: to design primers for each of the specific sequences given by the user in the query input file against any alternate potential hybridization with any of the sequences given in the database input file. * PSPD - Probe Specific Primer Design: to design primers it selects the gene-specific fragments (probes) to design primer pairs for their PCR amplification. * FSPD Fragment Specific Primer Design: primer design algorithm used when there is a very long query sequence for which multiple primers are required for its amplification. * Check Binding Specificity * Probe Design Only: Probe design algorithm could be used to find sequence-specific probes, which doesn''t show any blast hit against database. Such probe design has been used for targeted sequencing like agilent sure-select technology with next-generation sequencing.

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• SciCrunch
• 13 years ago - by Anonymous

A user-friendly software pipeline designed to map short reads in a MapReduce framework on a local Hadoop cluster. It is designed to be easily implemented by researchers who do not have expert knowledge of bioinformatics. As it does not have any dependencies, it provides full flexibility and control to the user. The user can use any version of a compatible mapper and any reference genome assembly. There is no need to maintain the mapper, reference or DistMap source code on each of the slaves (nodes) in the Hadoop cluster, making maintenance extremely easy.

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• SciCrunch
• 13 years ago - by Anonymous

The Beautiful Brain explores the latest findings from the ever-growing field of neuroscience through monthly long-form essays, reviews, galleries, short-form blog posts and more, with particular attention to the dialogue between the arts and sciences. The site illuminates important new questions about creativity, the mind of the artist, and the mind of the observer that modern neuroscience is helping us to answer, or at least to provide part of an answer. Instances where art seeks to answer questions of a traditionally scientific nature are also of great interest, and for that reason you will hear from artists as well as scientists on The Beautiful Brain. The Beautiful Brain Podcast also explores the latest findings from the ever-growing field of neuroscience, with particular attention to the dialogue between the arts and sciences. In this monthly program, host Noah Hutton reports on news from the world of brain science, interviews important thinkers about their work, and reviews new literature in the field. The show illuminates important new questions about creativity, the mind of the artist, and the mind of the observer that modern neuroscience is helping us to answer, or at least to provide part of an answer. Instances where art seeks to answer questions of a traditionally scientific nature are also of great interest, and for that reason you will hear from artists as well as scientists on The Beautiful Brain. Subscribe today to receive a brand new episode each month.

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• SciCrunch
• 15 years ago - by Anonymous