Contents
How do you find the hub gene?
Hub genes are defined as genes with high correlation in candidate modules. High connectivity means that the connectivity ranked at top 10%. For example, if the module size was 1000, then the genes with top 100 were defined as the hub genes.
What is a hub genes?
Identification, validation and efficacy evaluation for hub genes. The hub gene is defined as the gene with the highest degree of connectivity in the key module. Specifically, the genes with geneModuleMembership > 0.9 and geneTraitSignificance > 0.5 were determined as the hub genes in the study.
What are gene modules?
A gene module is defined as a set of coexpressed genes to which the same set of transcription factors binds.
What is WGCNA RNA seq?
WGCNA uses a series of correlations to identify sets of genes that are expressed together in your data set. This is a fairly intuitive approach to gene network analysis which can aid in interpretation of microarray & RNA-seq data.
What is a hub in graph theory?
Abstract A hub set in a graph G is a set U ⊆ V (G) such that any two vertices out- side U are connected by a path whose internal vertices lie in U.
What are hub genes Wgcna?
Hub genes, defined as highly interconnected nodes in each module, are considered as functionally-important genes77. To identify the hub genes, the moduleEigengenes function was used for calculating the modules’ eigengenes, considered as the principal component of each module.
How do you cite cytoscape?
Please cite the original Cytoscape paper when you use Cytoscape. This is critical to sustaining our federal funding. Shannon P, Markiel A, Ozier O, Baliga NS, Wang JT, Ramage D, Amin N, Schwikowski B, Ideker T.
How is gene coexpression measured?
One method to infer gene function and gene–disease associations from genome-wide gene expression is co-expression network analysis (Figure 1), an approach that constructs networks of genes with a tendency to co-activate across a group of samples and subsequently interrogates and analyses this network.
What is module expression?
Module expressions are the module-level equivalent of value expressions: they evaluate to modules, thus providing implementations for the specifications expressed in module types.
What does WGCNA stand for?
Weighted gene co-expression network analysis
Weighted gene co-expression network analysis (WGCNA)6 is a popular systems biology method used to not only construct gene networks but also detect gene modules and identify the central players (i.e., hub genes) within modules.
What is FPKM?
FPKM stands for Fragments Per Kilobase of transcript per Million mapped reads. In RNA-Seq, the relative expression of a transcript is proportional to the number of cDNA fragments that originate from it.
What is the importance of hub?
The most popular explanation has been that hubs mediate interactions between less connected proteins and therefore keep the network together.
How are genes labeled in modulepreservation-R package?
Traditionally such genes are labeled by gold color or numeric label 0.1. These values are the default when greyName is character and numeric, respectively. If these values conflict with the module labels in multiColor, they should be set to something not present in multiColor.
How does the preservation function in modulepreservation work?
In addition to preservation statistics, the function also calculates several statistics of module quality, that is measures of how well-defined modules are in the reference set.
How to identify the hub genes in CAD?
The online STRING tool was used to construct a protein–protein interaction (PPI) network, followed by the use of Molecular Complex Detection (MCODE) plug-ins in Cytoscape software to identify hub genes. Two significant modules (green-yellow and magenta) were identified in the CAD samples.
How is a module preserved in a network?
In network applications, one is often interested in studying whether modules are preserved across multiple networks. For example, to determine whether a pathway of genes is perturbed in a certain condition, one can study whether its connectivity pattern is no longer preserved.