Closed oobb45729 closed 8 months ago
The GK.1 subbranch (former singlet 1): https://cov-spectrum.org/explore/World/AllSamples/Past6M/variants?variantQuery=nextcladePangoLineage%3AGK.1*%26ORF1a%3AP309L%26S%3AA475V&
Cluster 5 (former singlet 2) (2 seq. UK, Italy): https://cov-spectrum.org/explore/World/AllSamples/Past6M/variants?variantQuery=nextcladePangoLineage%3AGW.5*%26S%3AA475V&
Great idea for a tracking issue, @oobb45729.
There are only four singlets so far, but I wonder if we'll eventually have to create an issue like this for S:S446I + FLip. The fact that this unusual combo has already appeared in EG.5.1.1, the XBB.1.5 branch with S:A475V mentioned above, DV.7.1 (CH.1.1.1.7.1), and GK.1 is pretty remarkable. Perhaps FLip somehow makes a hydrophobic residue at 446 advantageous? I still don't know how to use those handy spike-structure-viewing programs, so I don't have any way of looking more closely to see if there are any structural reasons to think this might be the case. EPI_ISL_18012368, EPI_ISL_18072823, EPI_ISL_18078439, EPI_ISL_18113536 (Collection dates July 8, July 25, August 3, and August 9)
There are 23 seqs for branch 2 now.
Cluster 3: Maybe GK.3 should be broaden to XBB.1.5.70+nuc:C12469T. https://cov-spectrum.org/explore/World/AllSamples/Past6M/variants?variantQuery=nextcladePangoLineage%3AXBB.1.5.70*%26S%3AL455F%26S%3AF456L%26S%3AA475V%26ORF1a%3AT2859I& https://nextstrain.org/fetch/genome.ucsc.edu/trash/ct/subtreeAuspice1_genome_29541_7b3e20.json?c=gt-S_475&label=id:node_7211617
Singlet 4: A low-quality sequence with ORF1b:A2222V, S:A475V, S:S704L on the top of XBB.1.5.70. https://cov-spectrum.org/explore/World/AllSamples/Past6M/variants?variantQuery=nextcladePangoLineage%3AXBB.1.5.70*%26S%3AL455F%26S%3AF456L%26S%3AA475V%26S%3AS704L%26ORF1b%3AA2222V& There's a GK.1 subbranch with ORF1b:A2222V. Maybe singlet 4 belongs to it. https://cov-spectrum.org/explore/World/AllSamples/Past6M/variants?variantQuery=nextcladePangoLineage%3AXBB.1.5.70*%26S%3AL455F%26S%3AF456L%26S%3AS704L%26ORF1b%3AA2222V&
@oobb45729 please propose in the main page CLuster 3 when it will reach 10 seqs
Cluster 4 (former Singlet 5) (3 seq. USA, Denmark): https://cov-spectrum.org/explore/World/AllSamples/Past6M/variants?variantQuery=ORF1a%3AA260V%26ORF1a%3AG1030D%26S%3AA475V& https://nextstrain.org/fetch/genome.ucsc.edu/trash/ct/subtreeAuspice1_genome_10393_38c610.json?c=gt-S_475&label=id:node_7229849
Sixth sequence of Cluster 3 detected in the US in a traveller from Spain
That latest one is a pooled sample, which Gingko, unaccountably, is still uploading. And I've yet to see a single high-quality sequence from Ginkgo.
Maybe they will find a way to use their latest Chat-GPT-like AI technology to solve the mystery of how to produce a decent genetic sequence. And maybe this advanced AI gizmo will learn to speak English and tell the Ginkgo people to stop uploading pooled samples.
Cluster 3 went to 9 sequences today 2 France , 1 Spain i think it could be moved to main page when it reaches 10. cc @oobb45729
This is a very interesting combination that I have missed for a while. Just today I scrubbed through some past twitters and discovered a conversation between two brilliant DMS researchers about immune escape for covid.
So I could consider this version as somewhat "Flip+", as S:475V seemed to be dependent on Flip for sustained growth among XBB*. We aren't that deep into an age of flip itself, yet it already led great refocusing among this community. Would be interesting to see if it could outgrow its Flip parents, which itself had somewhat outgrown their S:456L parents. Preliminary datas are pointing toward "yes".
Added #763 to the tasklist
Singlet 8:
Cluster 20 (former singlet 9): The EG.5.1.1 donor: https://cov-spectrum.org/explore/World/AllSamples/Past6M/variants?variantQuery=nextcladePangoLineage%3AEG.5.1.1*%26ORF1a%3AL590F&
https://www.frontiersin.org/articles/10.3389/fimmu.2023.1219546/full
I stumbled on this paper on 475V that seemed to go under the radar. Some interesting observations in there.
Cluster 3 > GK.4
Cluster 27 (former singlet 14): https://cov-spectrum.org/explore/World/AllSamples/Past6M/variants?variantQuery=nextcladePangoLineage%3AGK.1*%26S%3AA475V%26S%3AT732I&
Cluster 15 (former singlet 20) https://cov-spectrum.org/explore/World/AllSamples/Past6M/variants?variantQuery=ORF1a%3AR542C%26S%3AA475V%26ORF8%3AP38S&
Singlet 22:
I just realized that GK.3 and GK.4 with nuc:C12469T and nuc:G12467T(ORF1a:A4068S) have a new TRS-like sequence TCTAAAC. @ryhisner
Ah, a nasty one uploaded today. EPI_ISL_18343279 https://nextstrain.org/fetch/genome.ucsc.edu/trash/ct/singleSubtreeAuspice_genome_2dff7_dd6700.json?f_userOrOld=uploaded%20sample This one is weird, because it has C16342T as the typical XBB.2.3 reversion, plus C1884T that is very very abundant in XBB.2.3 population among Europe. Yet it has S:G252V instead of S:D253G. @oobb45729 you could decide to include it or leave it as I don't really like environmental sequences.
Ah, a nasty one uploaded today. EPI_ISL_18343279 https://nextstrain.org/fetch/genome.ucsc.edu/trash/ct/singleSubtreeAuspice_genome_2dff7_dd6700.json?f_userOrOld=uploaded%20sample This one is weird, because it has C16342T as the typical XBB.2.3 reversion, plus C1884T that is very very abundant in XBB.2.3 population among Europe. Yet it has S:G252V instead of S:D253G. @oobb45729 you could decide to include it or leave it as I don't really like environmental sequences.
It could be some sort of recombination or contamination. I would not include it for now.
Cluster 20 (former singlet 27): https://cov-spectrum.org/explore/World/AllSamples/Past6M/variants?variantQuery=nextcladePangoLineage%3AHK.3*%26S%3AP809S%26S%3AA475V&
Thank you @oobb45729 for your tracking great job this one and # 527 is filling up the high range of the chart with some more recomb and other convergent lineages.
S:A475V is appearing in multiple lineages of EG.5.1+S:L455F. As I'm not very familiar with the EG.5.1 tree, maybe it's time to split the issue. I think that a new issue (maybe more than one) tracking EG.5+S:L455F+S:A475V lineages could be created, and this issue will only track non-EG.5 ones. Who wants to do this? @NkRMnZr @FedeGueli @BorisUitham @aviczhl2 @Over-There-Is @krosa1910
Thank you @oobb45729 for this great work. I prefer one only issue but up to you what is more comfortable for you!
S:A475V is appearing in multiple lineages of EG.5.1+S:L455F. As I'm not very familiar with the EG.5.1 tree, maybe it's time to split the issue. I think that a new issue (maybe more than one) tracking EG.5+S:L455F+S:A475V lineages could be created, and this issue will only track non-EG.5 ones. Who wants to do this? @NkRMnZr @FedeGueli @BorisUitham @aviczhl2 @Over-There-Is @krosa1910
Mr NK have taken the job for EG.5+S:A475V, so I think you could continue doing it for non-EG.5.