linkstream2 microblog

BRAF #Pseudogene Functions as a Competitive Endogenous RNA; [Shows it] induces Lymphoma [after alteration, in mice]
http://www.cell.com/cell/abstract/S0092-8674(15)00244-5

Cell. 2015 Apr 9;161(2):319-32. doi: 10.1016/j.cell.2015.02.043. Epub 2015 Apr 2.

Karreth FA1, Reschke M1, Ruocco A1, Ng C1, Chapuy B2, Léopold V1, Sjoberg M3, Keane TM3, Verma A4, Ala U1, Tay Y1, Wu D5, Seitzer N1, Velasco-Herrera Mdel C3, Bothmer A1, Fung J1, Langellotto F6, Rodig SJ7, Elemento O4, Shipp MA2, Adams DJ3, Chiarle R8, Pandolfi PP9.

Abstract
Research over the past decade has suggested important roles for pseudogenes in physiology and disease. In vitro experiments
demonstrated that pseudogenes contribute….

Changes in [DHS] #regulatory element activity…[over 3 primates] associated w/ altered…expression & pos. selection
http://journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1002789

DHS across 3 primates finds species specific sites associated with differential expression & positive selection

Shibata Y, Sheffield NC, Fedrigo O, Babbitt CC, Wortham M, Tewari AK, London D, Song L, Lee BK, Iyer VR, Parker SC, Margulies EH, Wray GA, Furey TS, Crawford GE*. Extensive evolutionary changes in regulatory element activity during human origins are
associated with altered gene expression and positive selection. PLoS Genet. 2012 Jun; 8(6):e1002789. doi: 10.1371/journal.pgen.1002789. Epub 2012 Jun 28. PubMed PMID: 22761590; PubMed Central PMCID: PMC3386175

SUMMARY (from csds):

The study is focused on analyzing genotype-phenotype correlation by looking at the evolution of DHS sites across three primate genomes: human, chimp and macaque. By comparing the data they were able to identify common DHS sites across the three species (sites that show similar DHS levels) and also species-specific sites. All the assays were supported by ChiP experiments. The study identified >2000 regulatory elements that were gained/lost since the divergence of
human and chimp. Looking at DNase and RNAseq data the authors show that the enrichment of regulatory elements next to genes with species-specific expression, suggests that the gain or loss of DHS sites impacts transcript abundance. The human DHS sites were enhanced for chromatin marks predictive of enhancers, while common regions were preferentially associated with promoters and insulators. By looking at species specificity, they found that species-specific DHS gains are cell type specific while both species specific DHS gains and losses are subject to positive selection. The common DHS sites are conserved and are suggested to have roles involving transcription and general housekeeping.

Circadian #Enhancers Coordinate… Rhythmic… Transcription http://www.cell.com/cell/abstract/S0092-8674%2814%2901310-5
Periodicity helps find #eRNAs/enhancers & their targets

http://www.nature.com/ng/journal/vaop/ncurrent/full/ng.3222.html

Nat Genet. 2015 Mar 2. doi: 10.1038/ng.3222. [Epub ahead of print]

Analyses of allele-specific gene expression in highly divergent mouse crosses identifies pervasive allelic imbalance.

Crowley JJ1, Zhabotynsky V1, Sun W2, Huang S3, Pakatci IK3, Kim Y1, Wang JR3, Morgan AP4, Calaway JD4, Aylor DL1, Yun Z1, Bell TA4, Buus RJ4, Calaway ME4, Didion JP4, Gooch TJ4, Hansen SD4, Robinson NN4, Shaw GD4, Spence JS1, Quackenbush CR1, Barrick CJ1, Nonneman RJ1, Kim K5, Xenakis J5, Xie Y1,Valdar W6, Lenarcic AB1, Wang W3, Welsh CE3, Fu CP3, Zhang Z3, Holt J3, Guo Z3, Threadgill DW7, Tarantino LM8, Miller DR4, Zou F5, McMillan L3, Sullivan PF9, Pardo-Manuel de Villena F4.

http://www.nature.com/ng/journal/v47/n4/full/ng.3222.html

Carefully controlled allele expt – hets midway in expr betw homs for parents for 76pct (additive model) but 25pct hets diff. from parents

ASE in…divergent mouse crosses identifies pervasive allelic imbalance, 80%, w/ 60% closely following additive model
http://www.nature.com/ng/journal/vaop/ncurrent/full/ng.3222.html

Syntrophic exchange in synthetic #microbial communities [& their evolution] http://www.pnas.org/content/111/20/E2149.abstract Trading metabolically costly amino acids

RUNX1 is most connected in TLX1 & 3 expr. net. It’s a tumor suppressor disabled by LOF mutations.

Rev. engineering…identifies RUNX1 as tumor suppressor in T-ALL http://www.nature.com/nm/journal/v18/n3/full/nm.2610.html It’s the most connected TF in the expression network

Nat Med. Author manuscript; available in PMC 2012 Sep 1.
Nat Med. 2012 Feb 26; 18(3): 436–440.
Published online 2012 Feb 26. doi: 10.1038/nm.2610

Giusy Della Gatta,1 Teresa Palomero,1,2 Arianne Perez-Garcia,1 Alberto Ambesi-Impiombato,1 Mukesh Bansal,3Zachary W. Carpenter,1 Kim De Keersmaecker,4,5 Xavier Sole,6,7 Luyao Xu,1 Elisabeth Paietta,8,9 Janis Racevskis,8,9Peter H Wiernik,8,9 Jacob M Rowe,10 Jules P Meijerink,11 Andrea Califano,1,3 and Adolfo A. Ferrando1,2,12

https://veracrypt.codeplex.com/

Convergent…specializations in brains of humans & songbirds http://www.sciencemag.org/content/346/6215/1256846.long Both have matching expression patterns across regions

The pi moment of the century just occurred on the E Coast, USA: 3.14.15 9:26:53 (March 14, 2015 9:26:53 am ET)! via @bornalibran #PiDay2015

Statistical Basis for Predicting Technological Progress

http://trancik.scripts.mit.edu/home/data/
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0052669

Béla Nagy,
J. Doyne Farmer,
Quan M. Bui,
Jessika E. Trancik

Published: February 28, 2013
DOI: 10.1371/journal.pone.0052669