TF identification: TRANSFAC Professional 11.4 was used as described previously [ 22] except that it was done with the set of all fungal TF binding sites retrieved from matrix.dat in TRANSFAC.
I retrieve the matrix (hat {n}_{m2}) in two steps.
A programmer may retrieve a matrix of data by specifying individual coordinate ranges to the Genomedata interface.
Hence, for adjacency matrices retrieved from a protein-protein association database using different confidence scores, different orderings are obtained.
To investigate whether the number of sequences containing each one of these motifs was accurately predicted by MEME or AlignACE and to establish which of these 13 motifs was significantly overrepresented in the [-50, -1] or [+1, +50] regions, we retrieved nucleotide frequency matrices (NFMs) for each one of these motifs from the results of the MEME search (see Methods).
diazotrophicus PAl 5, G. oxydans H24, Ac. pasteurianus IFO 3283-01, and Granulibacter bethesdensis strain genomes; the relative presence/absence informations were retrieved from the OrthoMCL matrix generated above and organized in a new matrix.
These slides, henceforth termed "matrix" slides, are used to retrieve the corresponding "matrix" blocks which represent the core specimen component of the Resource.
Once the empirical covariance matrix S is calculated from the expression data and the prior information matrix P retrieved from the prior network, we estimate the true network using glasso and wglasso.
In fact, this is a well-known result of stochastic theory: the drift matrix (in our case, the connectivity matrix A) of a linear Langevin process (in our case, the spontaneous activity) cannot be uniquely retrieved from its covariance matrix [23], [24].
For instance, we have observed that the relative 64×4 mutabilities are mostly much higher than 100% when they are estimated using coding regions whose GC matches the actual GC of the alignments from which the substitutions used to estimate mutation matrices were retrieved, rather than the equilibrium GC generated by the estimated matrices.
