Archive for the ‘SciLit’ Category

Increased number of microRNA target sites in genes encoded in CNV regions. Εvidence for an evolutionary ge nomic interaction?

Sunday, September 9th, 2012

http://www.ncbi.nlm.nih.gov/pubmed/21441354

QT:”
By performing in silico whole genome analysis, we demonstrate that both the number of miRNAs that target genes found in CNV regions as well as the number of miRNA-binding sites are significantly higher than those of genes found in non-CNVregions.

CiteSeerX — Tutorial on Phylogenetic Tree Estimation

Tuesday, September 4th, 2012

Kim & Warnow (1999)

http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.39.3455

Mutational Signatures of De-Differentiation in Functional Non-Coding Regions of Melanoma Genomes

Saturday, August 25th, 2012

http://www.plosgenetics.org/article/info%3Adoi%2F10.1371%2Fjournal.pgen.1002871 QT:”
To understand the functional impact of non-coding somatic variation, we leveraged functional data generated by the ENCODE Project Consortium. We analyzed regulatory regions derived from multiple different cell types and found that melanocyte-specific regions are among the most depleted for somatic mutation accumulation.

An Abundance of Rare Functional Variants in 202 Drug Target Genes Sequenced in 14,002 People

Monday, August 20th, 2012

Paper with the NS/S ratio: (See Fig 2C).
http://www.sciencemag.org/content/337/6090/100.abstract
Presaging what we’ll see in exomes to come….

Mutational processes molding the genomes of 21 breast cancers

Monday, August 20th, 2012

Here is the link to the 21 Breast Cancer genomes:
http://www.ncbi.nlm.nih.gov/pubmed/22608084
Found hotspots of mutation….

Genome sequence data have been deposited at the European Genome-Phenome Archive (http://www.ebi.ac.uk/ega/ at the EBI) with accession number EGAD00001000138. SNP6 array data have been deposited with ArrayExpress Archive (EBI, accession number E-MTAB-1087).

SIAM: M.C. Escher: More Mathematics Than Meets the Eye

Tuesday, August 7th, 2012

http://www.siam.org/news/news.php?id=474

Void in center in original is filled in by determining spatial transform and redrawing

BioTechniques – The new molecular gastronomy, or, a gustatory tour of network analysis

Monday, August 6th, 2012

http://www.biotechniques.com/BiotechniquesJournal/2012/July/The-new-molecular-gastronomy-or-a-gustatory-tour-of-network-analysis/biotechniques-332722.html

Useful Facts about Quality Control in Exome Sequencing (Ts/Tv)

Sunday, August 5th, 2012

http://www.biostars.org/post/show/4751/titv-ratio-confirms-snp-discovery-is-this-a-general-rule/ QT:”
The transition transversion ratio in human is observed to be around 2.1 and this can be used as a confirmation for the filtering in a snp discovery project.

http://genome.sph.umich.edu/wiki/SNP_Call_Set_Properties
QT:”
Proportion of dbSNPs
Most of the genetic variants in any one individual have been previously observed in other individuals. Thus, it is usually a good diagnostic to investigate what fraction of variants in an individual genome have been previously described in dbSNP.
….The dbSNP database is being constantly updated so that currently (mid-2010) we’d expect >90% of the variants in an individual genome to have been previously discovered….
Transition to Transversion Ratio
…transitions (changes from A <-> G and C <-> T) are expected to occur twice as frequently as transversions (changes from A <-> C, A <-> T, G <-> C or G <-> T). Thus, another useful diagnostic is the ratio of transitions to transversions in a particular set of SNP calls. ….
Across the entire genome the ratio of transitions to transversions is typically around 2. In protein coding regions, this ratio is typically higher, often a little above 3. The higher ratio occurs because, especially when they occur in the third base of a codon, transitions are much more likely to change the encoded amino acid. “

mutation rates in cancer cells

Sunday, August 5th, 2012

Seem to have cancer SNV calls all over the genome.
http://www.nature.com/nature/journal/vaop/ncurrent/full/nature11273.html

NATURE GENETICS | Exome sequencing identifies recurrent somatic RAC1 mutations in melanoma

Sunday, August 5th, 2012

http://www.nature.com/ng/journal/vaop/ncurrent/full/ng.2359.html