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Ryan Hisner Profile picture
@LongDesertTrain
May 26, 2021 • 7 tweets • 2 min read • Read on X
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1/7 Satan is trending on Twitter. I recall what Mark Twain said about him.
"I am quite sure that I have no race prejudices, and I think I have no color prejudices nor caste prejudices nor creed prejudices. Indeed, I know it..."
2/7 "I can stand any society. All that I care to know is that a man is a human being—that is enough for me; he can't be any worse."
3/7 "I have no special regard for Satan; but I can at least claim that I have no prejudice against him. It may even be that I lean a little his way, on account of his not having a fair show."
4/ "All religions issue bibles against him & say the most injurious things about him,but we never hear his side. We have none but the evidence for the prosecution, yet we have rendered the verdict. To my mind, this is irregular. It is un-English; it is un-American; it is French."
5/7 "We may not pay [Satan] reverence, for that would be indiscreet, but we can at least respect his talents."
6/7 "A person who has for untold centuries maintained the imposing position of spiritual head of four-fifths of the human race, and political head of the whole of it, must be granted the possession of executive abilities of the loftiest order."
7/7 "In [Satan's] large presence the other popes and politicians shrink to midges for the microscope. I would like to see him. I would rather see him and shake him by the tail than any other member of the European Concert."

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More from @LongDesertTrain

Ryan Hisner Profile picture
May 31
An awesome preprint on the novel, unsung SARS-CoV-2 N* protein came out recently, authored by @corcoran_lab & Rory Mulloy. I’ve previously written on N*’s demise in XEC, the top variant in late 2024/early 2025. But…
1/34
…this preprint, along with another great study by the @DavidLVBauer, @theosanderson, @PeacockFlu & others prompted me to take a closer look...
2/34biorxiv.org/content/10.110…
...and for reasons I’ll describe below, I now believe rumors of N*’s death are exaggerated.

First, XEC is in terminal decline, replaced by variants with full N* expression, so N* is back in fashion.
3/34
journals.plos.org/plosbiology/ar…
Read 35 tweets
Ryan Hisner Profile picture
May 15
@DameSunshine @SharonBurnabyBC B.1.1.529 wasn't/isn't a real variant; it's a placeholder that represents a putative ancestor of BA.1/BA.2/BA.3.

Bad sequences and/or coinfections tend to get categorized as B.1.1.529:—they have enough Omicron muts to be ID'd as Omicron but so much dropout/mixed signals...
1/
@DameSunshine @SharonBurnabyBC ...that a specific designation isn't possible. Travel sequencing in the US is done by Ginkgo Bioworks. Their sequences are generally poor quality & they upload *pooled* sequences—against database guidelines. The B.1.1.529 here are likely low-quality/pooled sequences from GBW.
2/
@DameSunshine @SharonBurnabyBC I think it's entirely possible that a new, divergent variant will emerge this summer. There are hints with BA.3.2 & a 50-spike-mutation BQ.1.1 that has transmitted at least once. Other similar chronic infection-derived variants are undoubtedly lurking all over, unsequenced.... 3/
Read 4 tweets
Ryan Hisner Profile picture
May 2
Incredible how quickly @yunlong_cao & co provide us w/info on the latest emerging SARS-CoV-2 variants.

Already, we have great data on BA.3.2 (the divergent saltation lineage detected in South Africa & the Netherlands & NB.1.8.1, an emerging contender for global dominance. 1/9 Image
Image
BA.3.2 is a clear outlier on the antigenic cartography map—as expected given the enormous differences between its spike protein & every other circulating variant. 2/9
Image
It's unsurprising, therefore, that BA.3.2 evades antibodies from human sera more effectively than any other variant, though the degree of its superiority is striking. 3/9
biorxiv.org/content/10.110…Image
Read 9 tweets
Ryan Hisner Profile picture
Apr 25
About 1 month after this monster BQ.1.1 appeared, an even more extreme sequence has shown up in Alberta. Like the BQ, it has 50 private spike mutations, but it also has >40 AA mutations elsewhere in the genome. 1/6 Image
They include the full panoply of NSP3, NSP12, & N muts I've written about previously. ORF1a:S4398L is the most common mutation in the 4395-4398 region, this has ∆S4398, a rarity also seen in a few other extremely divergent seqs w/this constellation. 2/6 Image
In a theme that's become familiar, it's added two spike NTD glycans, N30 (via F32S) and N155 (via S155N+F157S).
Another chronic-infection leitmotif (first noted by @SolidEvidence): reversions to common or consensus residues in related Bat-CoVs, including SARS-1. 3/6 Image
Read 6 tweets
Ryan Hisner Profile picture
Apr 10
A fascinating SARS-CoV-2 sequence was recently uploaded—collected from a dog in Kazakhstan in July 2022.

Usher places the seq 1 nuc mut from the Wuhan ref seq—C21846T/S:T95I—i.e. pre-D614G. Could this seq somehow have a close connection to the first days of the pandemic?
1/19 Image
Of the sequences near this one on the tree, all are low-quality & clearly bad BA.1 or Delta sequences. The only genuine one is from the UK, collected April 2020. So it's likely even S:T95I was not inherited.

This sequence has several fascinating aspects. 2/ Image
(This all assumes the sequence is accurate and that C241T & C14408T (ORF1b:P314L) are genuinely absent. Its mutational characteristics make me certain this is a good sequence, though it's not impossible there's dropout not indicated hiding C241T and/or C14408T.) 3/
Read 19 tweets
Ryan Hisner Profile picture
Mar 12
Do you remember BA.3—the weakling cousin of BA.1 & BA.2 that seemed to take the worst from each & had weaker ACE2 binding than even the ancestral Wuhan Virus?

After 3 years, BA.3 is back.

And it is transmitting.

Who saw this coming?
1/13 Image
While the full extent of the new BA.3’s spread is not known, it’s been detected in 2 different South African regions through regular (not targeted) surveillance by @Dikeled61970012, @Tuliodna, & the invaluable South African virology community.
2/13
github.com/cov-lineages/p…
After nearly 3 years of intrahost evolution in a chronically infected person, the new BA.3 is almost unrecognizable. It has ~41 spike AA substitutions (4 of which are 2-nuc muts) to go with 14 AA deletions (∆136-147+∆243-244). We’ve seen nothing like this since 2023.
3/13 Image
Read 13 tweets

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