Albert Vilella Profile picture
Dec 11, 2022 6 tweets 3 min read Read on X
Some initial results from the #CASP15 competition and we see that #Alphafold2 has become a fertile ground for experimentation by several research groups around the world. Facebook's ESM protein language models (pLMs) are the top non-MSA based methods.
Another slide showing some of the experimentation taking place: increase the number of models, recycles, get more diversity using dropout (how would that work?), subsample MSAs.
A slide showing the amount of #GPU hours used for computing the structures in the #CASP15 dataset.
How quickly things progress: we are now treating naive AF2-Multimer as the starting point onto which we make improvements.
Here showing some of the remaining challenges for AF2-Multimer, including Antibody & nanobody completes and Mutation-induced changes.
On the topic of folding predictions for Antibodies, we got lots of great data for SARS-CoV-2 in the last couple of years. Some example predictions on these here.

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More from @AlbertVilella

May 18, 2023
The tech update from Oxford @nanopore #NanoporeConf now ongoing with @The__Taybor now presenting:
Duplex: 1.5% of the time, the complement strand follows the first strand naturally.
Initially, modified the adapters and reached 30% duplex rate. Image
Stereo base caller uses similar ML approaches as ChatGPT, Image
Read 9 tweets
May 17, 2023
On library prep at #Nanoporeconf, a description for PCR-free methods showing the difference between ligation (max output) and rapid mode (10minutes, minimal lab equipment needed). Ultralong reads (ULR) also enabled, all Kit14. Image
Rapid ULR. Current record is about 4 megabases. Image
PCR expansion kits enable the use of samples with low input amount. Image
Read 10 tweets
Apr 21, 2023
I did a deep dive on the different workflow management (WFM) tools for #Bioinformatics Data Analysis a few years ago, and since then there have been a few extra entrants in this segment, still mostly concentrated in serving the Next-Generation Sequencing field.
A few years ago, there were two communities dominating the open-source WFM ecosystem in NextFlow and SnakeMake, and two platforms dominating the the commercial offerings in DNAnexus and Illumina BaseSpace.
Since then, a company out of the founders of Nextflow has started offering enterprise support for Nextflow workflows in the cloud: Seqera Labs. They offer the extra level of support that some organizations require to run Nextflow on their Data Analysis setups.
Read 7 tweets
Apr 21, 2023
More interesting Next-Generation Sequencing knowledge in the ASeq Discord channel (by @new299). Illumina patterned flowcells and the etching process to "print" the wells into the flowcell. Could be down to 350nm diameter for some flowcell configurations now. Image
If I remember correctly, Illumina started with a 600nm diameter for the patterned flowcell, in the HiSeq X and then later on in the evolution of the platform that used these patterned flowcells.
They then said to have gone down to 500nm, and what you are showing seems to indicate that it's at 350nm now, at least for the NextSeq 2000? I am not sure if they claimed that for NovaSeq X?
Read 8 tweets
Apr 20, 2023
There have been some acquisitions in #CancerDiagnostics and #CancerScreening recently, some of which signify a trend towards consolidation that is worth describing:
$A Agilent is moving towards some more vertical integration in Cancer Dx and Cancer screening
by recently acquiring both announcing a partnership with Akoya Bio and announcing the acquisition of Avida Biomed. Image
Some may ask: isn’t $A Agilent too small to go into this field? Would they be able to compete against $ILMN Illumina/GrailBio or $GH Guardant Health or $EXAS Exact Sciences?
Read 4 tweets
Apr 20, 2023
It is likely that as Spatial Biology tools become more robust and user-friendly, they will become increasingly popular and widely adopted in the scientific community.
This may lead to a shift in the balance between single-cell and Spatial Biology approaches, with the latter eventually becoming more prevalent.
Additionally, as more and more datasets are generated using Spatial Biology techniques, the field of Machine Learning and Artificial Intelligence will likely play an increasingly important role in analysing and interpreting this data.
Read 6 tweets

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