Test RNA-Seq data for differentially expressed genes using a negative binomial model.
Perform a genome-wide analysis of DNA methylation in the human by using genome sequencing.
Several ways of visualizing the results of functional metagenomic analyses. The discussion is based on two studies focusing on the metagenomic analysis of the human distal gut microbiome.
Construct phylogenetic trees from mtDNA sequences for the Hominidae taxa (also known as pongidae). This family embraces the gorillas, chimpanzees, orangutans and humans.
Illustrates how to use the rnafold and rnaplot functions to predict and plot the secondary structure of an RNA sequence.
Calculate Ka/Ks ratios for eight genes in the H5N1 and H2N3 virus genomes, and perform a phylogenetic analysis on the HA gene from H5N1 virus isolated from chickens across Africa and Asia. For
How HMM profiles are used to characterize protein families. Profile analysis is a key tool in bioinformatics. The common pairwise comparison methods are usually not sensitive and specific
Illustrates a simple metagenomic analysis on a sample data set from the Sargasso Sea. It requires the taxonomy information included in the files gi_taxid_prot.dmp, names.dmp and
Illustrates a simple approach to searching for potential regulatory motifs in a set of co-expressed genomic sequences by identifying significantly over-represented ungapped words of
Generate bootstrap replicates of DNA sequences. The data generated by bootstrapping is used to estimate the confidence of the branches in a phylogenetic tree.
Use the Bioinformatics Toolbox™ to find potential primers that can be used for automated DNA sequencing.
An analysis of the origin and diffusion of the SARS epidemic. It is based on the discussion of viral phylogeny presented in Chapter 7 of "Introduction to Computational Genomics. A Case
How the analysis of synonymous and nonsynonymous mutations at the nucleotide level can suggest patterns of molecular adaptation in the genome of HIV-1. This example is based on the
Retrieve gene expression data series (GSE) from the NCBI Gene Expression Omnibus (GEO) and perform basic analysis on the expression profiles.
Analyze Illumina BeadChip gene expression summary data using MATLAB® and Bioinformatics Toolbox™ functions.
Identify differentially expressed genes from microarray data and uses Gene Ontology to determine significant biological functions that are associated to the down- and up-regulated
Various ways to explore and visualize raw microarray data. The example uses microarray data from a study of gene expression in mouse brains .
Use MATLAB® and Bioinformatics Toolbox™ for preprocessing Affymetrix® oligonucleotide microarray probe-level data with two preprocessing techniques, Robust Multi-array Average
Use a Bayesian hidden Markov model (HMM) technique to identify copy number alteration in array-based comparative genomic hybridization (CGH) data.
Study DNA copy number variants by preprocessing and analyzing data from the Affymetrix® GeneChip® Human Mapping 100k array.
Use the functions in the Bioinformatics Toolbox™ for working with Affymetrix® GeneChip® data.
Use the Global Optimization Toolbox with the Bioinformatics Toolbox™ to optimize the search for features to classify mass spectrometry (SELDI) data.
Classify mass spectrometry data and shows some statistical tools that can be used to look for potential disease markers and proteomic pattern diagnostics.
Improve the quality of raw mass spectrometry data. In particular, this example illustrates the typical steps for preprocesssing protein surface-enhanced laser
Manipulate, preprocess and visualize data from Liquid Chromatography coupled with Mass Spectrometry (LC/MS). These large and high dimensional data sets are extensively utilized in
Use a single computer, a multicore computer, or a cluster of computers to preprocess a large set of mass spectrometry signals. Note: Parallel Computing Toolbox™ and MATLAB® Distributed
How the SAMPLEALIGN function can correct nonlinear warping in the chromatographic dimension of hyphenated mass spectrometry data sets without the need for full identification of the
A secondary structure prediction method that uses a feed-forward neural network and the functionality available with the Neural Network Toolbox™.
Workflows for the analysis of gene expression data with the attractor metagene algorithm. Gene expression data is available for many model organisms and disease conditions. This example
How Bioinformatics Toolbox™ can be used to work with and vizualize graphs.
Display, inspect and annotate the three-dimensional structure of molecules. This example performs a three-dimensional superposition of the structures of two related proteins.
Use the BIOGRAPH object to visually represent interconnected data.
Programmatically search and retrieve data from NCBI's Entrez databases using NCBI's Entrez Utilities (E-Utilities).
The interoperability between MATLAB® and Bioperl - passing arguments from MATLAB to Perl scripts and pulling BLAST search data back to MATLAB.
Handle Scoring Matrices with the sequence alignment tools. The example uses proteins associated with retinoblastoma, a disease caused by a tumor which develops from the immature retina.
Basic sequence manipulation techniques and computes some useful sequence statistics. It also illustrates how to look for coding regions (such as proteins) and pursue further analysis of
Extract some sequences from GenBank®, find open reading frames (ORFs), and then aligns the sequences using global and local alignment algorithms.
Create and manipulate MATLAB® containers designed for storing data from a microarray experiment.
Read and perform basic operations with data produced by the Illumina/Solexa Genome Analyzer®.
A method that can be used to investigate the significance of sequence alignments. The number of identities or positives in an alignment is not a clear indicator of a significant alignment. A
Create a memory mapped file for sequence data and work with it without loading all the genomic sequence into memory. Whole genomes are available for human, mouse, rat, fugu, and several other