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Sequencing your DNA with a USB dongle and open source code

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Re: Sequencing your DNA with a USB dongle and open source code

#11

This is very cool. Are there by chance any associated projects that could evolve into something like 23andme but remain entirely within a private network meaning that the data is entirely in the hands of the individual?

Sounds like a fediverse project?

Oh God, I would not want a distributed group of actors with limited trust to sequence my DNA. Maybe it's a project for close group of friends that would be interested?

Re: Sequencing your DNA with a USB dongle and open source code

#12

This is very cool. Are there by chance any associated projects that could evolve into something like 23andme but remain entirely within a private network meaning that the data is entirely in the hands of the individual?

A used laboratory grade NGS system can be had for less than 10K https://www.ebay.com/itm/265148387179 Nanopore is still not quite ready yet for precise and high accuracy sequencing. Give it another five years.

Interested outsider here; I work with a lot of HCLS research customers but don't have a biology-related background. Can you explain the problems with the Nanopore sequencer accuracy in more detail? Basically, I was wondering if I could get one for myself and sequence my own genome, then user the data to learn about life-sciences computing techniques. If I were to buy one of the USB-attachable devices and run it, is the data simply not viable for use in a genomics pipeline, or is it just that the results would be questionable? Also, if accuracy is an issue, what about just running the same sample N times and doing some error correction?

Re: Sequencing your DNA with a USB dongle and open source code

#13
post #8

Earlier quoted context omitted.

A used laboratory grade NGS system can be had for less than 10K https://www.ebay.com/itm/265148387179 Nanopore is still not quite ready yet for precise and high accuracy sequencing. Give it another five years.

wow i didn’t know they were that “cheap” now. i used to work for a major competitor to the sequencer you linked, the SOLiD. and i feel like nanopore is the VR of dna sequencing. it’s always just another few years off.

> and i feel like nanopore is the VR of dna sequencing. it’s always just another few years off.

Is this also true for nanopores in protein sequencing? This HN comment from a few weeks back [1] pointed out recent progress but perhaps the tech is still not quite there.

[1]: https://news.ycombinator.com/item?id=29481075

Re: Sequencing your DNA with a USB dongle and open source code

#14
post #4

This is very cool. Are there by chance any associated projects that could evolve into something like 23andme but remain entirely within a private network meaning that the data is entirely in the hands of the individual?

yes. if you wanted to annotate your genome you could “easily” do it on your brand new macbook (this is ram intensive, you probably need 32G). you’d need a reference genome, like https://www.nist.gov/programs-projects/genome-bottle then you’d need a program like bwa http://bio-bwa.sourceforge.net/ to map your data. then use https://samtools.github.io/bcftools/howtos/variant-calling.h... or something else to produce va…

I'm unclear from this what kind of equipment you need to extract and analyze the material?

Re: Sequencing your DNA with a USB dongle and open source code

#15
post #14
post #4

Earlier quoted context omitted.

yes. if you wanted to annotate your genome you could “easily” do it on your brand new macbook (this is ram intensive, you probably need 32G). you’d need a reference genome, like https://www.nist.gov/programs-projects/genome-bottle then you’d need a program like bwa http://bio-bwa.sourceforge.net/ to map your data. then use https://samtools.github.io/bcftools/howtos/variant-calling.h... or something else to produce va…

I'm unclear from this what kind of equipment you need to extract and analyze the material?

you’d likely to have to get the nanopore sequencer in the article or find a lab using Next Generation Sequencing to sequence your DNA and give you “raw data” which are usually fastq files

Re: Sequencing your DNA with a USB dongle and open source code

#16
post #11

Earlier quoted context omitted.

Sounds like a fediverse project?

Oh God, I would not want a distributed group of actors with limited trust to sequence my DNA. Maybe it's a project for close group of friends that would be interested?

I wasn't thinking sequencing but rather comparison. Could even hash data for comparison to enforce privacy (unsure how effective that would be)

But this could enable things like finding relatives which is what I got out of the comment about 23andme. Instead of all the data being centralized, storage and comparison could be distributed

Re: Sequencing your DNA with a USB dongle and open source code

#17

This is very cool. Are there by chance any associated projects that could evolve into something like 23andme but remain entirely within a private network meaning that the data is entirely in the hands of the individual?

A used laboratory grade NGS system can be had for less than 10K https://www.ebay.com/itm/265148387179 Nanopore is still not quite ready yet for precise and high accuracy sequencing. Give it another five years.

I work in a dry lab but I'm pretty sure you need a lot of expensive chemicals to actually make one of these work, yeah?

Re: Sequencing your DNA with a USB dongle and open source code

#18
I'm really curious about what I could learn by getting my DNA sequenced, but I'm worried about my rights to not have it recorded and shared without my consent if I got someone else to do it for me - so any advance toward an affordable home test setup is very welcome.

Re: Sequencing your DNA with a USB dongle and open source code

#19

Earlier quoted context omitted.

A used laboratory grade NGS system can be had for less than 10K https://www.ebay.com/itm/265148387179 Nanopore is still not quite ready yet for precise and high accuracy sequencing. Give it another five years.

I work in a dry lab but I'm pretty sure you need a lot of expensive chemicals to actually make one of these work, yeah?

yup. that’s the business model for Illumina. it’s very much akin to video game consoles. Illumina might take a hit on selling the machine but makes it up in selling you proprietary reagents.

Re: Sequencing your DNA with a USB dongle and open source code

#20

Earlier quoted context omitted.

A used laboratory grade NGS system can be had for less than 10K https://www.ebay.com/itm/265148387179 Nanopore is still not quite ready yet for precise and high accuracy sequencing. Give it another five years.

Interested outsider here; I work with a lot of HCLS research customers but don't have a biology-related background. Can you explain the problems with the Nanopore sequencer accuracy in more detail? Basically, I was wondering if I could get one for myself and sequence my own genome, then user the data to learn about life-sciences computing techniques. If I were to buy one of the USB-attachable devices and run it, is t…

I recommend reading this review

https://genomebiology.biomedcentral.com/articles/10.1186/s13...

I guess there are limits to ensemble methods if the underlying accuracy doesn't increase. I don't work on gene sequencing algorithms but from what I understand of ML ensemble techniques, there are certain assumptions regarding the underlying independence of the errors. The errors for nanopore should be uniform but I am not sure. Any molecular biologist here care to comment?

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