For the positive set, we aligned the 432 mouse pre-miRNAs in miRBase 10.1 to the rat genome (blastn; identity >= 98%, alignment >= 45 nt) and obtained 208 conserved pre-miRNAs.
The structure-based multiple sequence alignments for the seeded domains were obtained from DHS [18] and conserved, solvent-unexposed core columns were identified for each alignment (Figure S3) using the solvent accessibility parameters from DSSP/CATH-wolf [19] [21] for constructing the PCAIN database from the PCM database (Figure S4) as described in the methods section.
Of note, the minimum overlap used had little influence over the number of conserved regions obtained, and minimum required overlaps ranging from 1 to 80% gave very similar results to those reported here.
All virological analyses were performed using serum specimens obtained before patients initiated treatment and conserved at −80°C until testing.
Using the E-value cut-off of 1 × 10-20, we obtained 710 conserved sequences in IGRs of the S. coelicolor and S. avermitilis genomes.
To identify the presence of LCNG gene sets in genome skimming data, which may have utility in future studies of Oreocarya and Amsinckiinae, the following published gene sets were obtained: (1) conserved orthologous set (COS) (Fulton et al., 2002), (2) single-copy conserved orthologous genes (COSII) (Wu et al., 2006), and (3) shared single-copy genes (SSC) (Duarte et al., 2010).
Because gastric tissue had not been obtained or conserved for the purposes of H. pylori histology or culture, negative results to these two tests were not considered reliable for determining presence or absence of infection.
No evidence was obtained for conserved CG methylation patterns among any pair-wise comparison of TBX genes.
Then, each group was aligned separately using Muscle version 3.8.31 (Edgar 2004), and the aligned sequences of all the groups were concatenated and conserved blocks were obtained for phylogenetic analysis using Gblocks version 0.91 b (Castresana 2000) with default parameters.
Subsequently, we used a combination of the miRDeep algorithm and the homology search method to obtain 437 conserved miRNAs and 86 candidate novel pig-specific miRNAs.
Using the human genome as reference, we extended physical loci to the most remote start/end position of those elements which have intersection with each other, and we obtained 7,570 highly conserved elements (HCEs) without overlap.
