#GeneChat need grant writing literature search help. Anyone got a lead on good papers that talk about developing a genetic counseling strategy/outline for polygenic risk scores.... so far found a handful of good papers talking about principles such as below... looking for more!

Some objects you have to share immediately after seeing it: a Roman flask in the shape of a fish.
We don't know what flaks in the shape fishes were used for, maybe the shape relates to the content (garum/fish sauce), maybe it was used to hold oil.

On display at Pierides Museum, Larnaka, Cyprus.

Photo: Jeff Amadon via Flickr

#RomanArchaeology

Elijah McCoy was born in 1844 in Ontario to formerly-enslaved parents from Kentucky. They saved enough to send him to Scotland to study mechanical #engineering. When he returned and couldn't get work in his field, he took a job as a train oilman and invented a method of automatic lubrication that eliminated the frequent stops trains had to make to oil up axles & bearings. Railroad companies asking for his product rather than copycat devices spawned the phrase "the real McCoy." #BlackHistoryMonth

Enjoyed reading this paper for our most recent journal club “3D chromatin maps of the human pancreas reveal lineage-specific regulatory architecture of T2D risk” cell.com/cell-metabolism/fullt very interesting that the activity-by-contact model doesn’t perform well on their data

Abstract submissions are now open for ISMB/ECCB in Lyon, France! Submit your latest work on annotation, prediction, design, and evolution of protein function. Join us this summer!

iscb.org/ismbeccb2023-submissi

Exciting postdoc opportunity with @twoyke here at the Joint Genome Institute @jgi in Berkeley. Great science, great views.

Project involves:
- genome sequencing of single microbial cells
- phylogenetic and functional diversity analysis
- secondary metabolite analysis

For recent work from Tanja's group, see nytimes.com/2022/06/23/science

Apply here: lbl.referrals.selectminds.com/

Please boost.

@LBNLBioSci @berkeleylab #NationalLab #Postdoc #Genomics #SingleCell #Berkeley

RT @seungsookim10@twitter.com

Check out our new review on the cis-regulatory code! I hope it's as useful to others as it has been to me to write it and would have been to my starting grad student self authors.elsevier.com/sd/articl

🐦🔗: twitter.com/seungsookim10/stat

RT @BrahmaComplex@twitter.com

Excited to share our new preprint showing how RNAPII, the ATP-dependent chromatin remodeler BAF, and TFs synergize for locus-specific nucleosome remodeling and chromatin accessibility. doi.org/10.1101/2023.01.22.525
🧵👇🏽 (long 🧵 alert!) 1/n

🐦🔗: twitter.com/BrahmaComplex/stat

On #scienceTwitter, my favourite thing were reading and, on rare occasions, writing "paper/preprint threads". From the researchers I followed and through the #Twitter algorithm, this became my most important source for new #research.

While people start to do the same on #Mastodon, I have the feeling that I miss important work bc no algorithm "saves" it for me if I don't watch my timeline constantly.

Two simple solutions would be: a commonly accepted hashtag that everybody uses when writing "paper threads" or a [...] @ a.gup.pe group with a similar adaptation rate.

#Question 1: is there already a mechanism for this that I missed?
#Question 2: What hashtag or group name?
I saw #TootPrint before. Maybe #PaperInAToot? #PaperInAPost? #PaperInAThread? #PaperPost? #MastoPrint?

Suggestions and boosts, please, we need reach for this! 🤓

#TwitterMigration #Science #Scientist @phdstudents @academicchatter @neuroscience @cognition

“In conclusion, our first-pass functional genomics null hypothesis showed that we expect a lot of gene regulatory activity by chance... and maybe, just maybe, not everything that the genome does is functional. “. Another piece of evidence that e-qtls are mostly non functional and more often than not happening by chance, just like the fact that you and I look different, genes can be transcriptonally different without consequence.
biorxiv.org/content/10.1101/20

Biochemical activity is the default DNA state in eukaryotes

Genomes encode for genes and the regulatory signals that enable those genes to be transcribed, and are continually shaped by evolution. Genomes, including those of human and yeast, encode for numerous regulatory elements and transcripts that have limited evidence of conservation or function. Here, we sought to create a genomic null hypothesis by quantifying the gene regulatory activity of evolutionarily naïve DNA, using RNA-seq of evolutionarily distant DNA expressed in yeast and computational predictions of random DNA activity in human cells and tissues. In yeast, we found that >99% of bases in naïve DNA expressed as part of one or more transcripts. Naïve transcripts are sometimes spliced, and are similar to evolved transcripts in length and expression distribution, indicating that stable expression and/or splicing are insufficient to indicate adaptation. However, naïve transcripts do not achieve the extreme high expression levels as achieved by evolved genes, and frequently overlap with antisense transcription, suggesting that selection has shaped the yeast transcriptome to achieve high expression and coherent gene structures. In humans, we found that, while random DNA is predicted to have minimal activity, dinucleotide content-matched randomized DNA is predicted to have much of the regulatory activity of evolved sequences, including active chromatin marks at between half (DNase I and H3K4me3) and 1/16th (H3K27ac and H3K4me1) the rate of evolved DNA, and the repression-associated H3K27me3 at about twice the rate of evolved DNA. Naïve human DNA is predicted to be more cell type-specific than evolved DNA and is predicted to generate co-occurring chromatin marks, indicating that these are not reliable indicators of selection. However, extreme high activity is rarely achieved by naïve DNA, consistent with these arising via selection. Our results indicate that evolving regulatory activity from naïve DNA is comparatively easy in both yeast and humans, and we expect to see many biochemically active and cell type-specific DNA sequences in the absence of selection. Such naïve biochemically active sequences have the potential to evolve a function or, if sufficiently detrimental, selection may act to repress them. ### Competing Interest Statement The authors have declared no competing interest.

www.biorxiv.org

An irregular reminder that calling this place "Mastodon" has a bit similar energy as saying "I just sent you a GMail."

"Fediverse" (or "fedi") is a better term.

Mastodon is just one of many software projects that talk to each other to create this multi-instance social network:
axbom.com/fediverse/

(kudos to @axbom for this fantastic infographic!)

There are blogs, Reddit-like communities, video instances and many more, all part of fedi.

#TwitterMigration #NewHere

So I understand that the bird site has started blocking links to common/known Mastodon instances, and that doesn't seem like free speech to me. So... I did a thing.

If you go to spacekaren.sucks it is now a URL shortener that blocks the twitter user agent. That means you can share that link that will redirect to your Mastodon account without the pouty baby stopping you. If you find this helpful can you boost so others can find it? #TwitterMigration #Mastodon #Musk #introduction

I'm excited about this new #genomics #scRNA #rnaseq preprint from @ariel_hippen! It's a molecular biology deep dive into what happens when you dissociate and single-cell sequence a tissue with the goal of performing deconvolution of bulk tissue.

Some key bits: there are dissociation effects, RNA capture/depletion effects, and potentially some microfluidics effects with the #10X platform. Also, deconvolution algorithms are variably robust to these things.

See more:
biorxiv.org/content/10.1101/20

Whispering: rich students have been paying other people to do their homework for decades, have you considered that maybe the real threat of OpenAI text to academia is that now the underprivileged have a way to fake their way through your social stratification system.

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