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XEC spike diversity issue #2088
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Very good idea, i will try to help. do u prefer direct editing or highlighting in the comments? I would require also that the lineage has to be sampled at least once in September ( or last 30 days) to avoid dead ends |
Sure, you can do direct editing. |
Branch 7: XEC+Orf1a:A599T+S:S680F (furin), 5seqs (1xFrance, 1xCanada, 3xUS). Arose 2x independently (all US sequences are separated on the Orf1a:T2274I subbranch). All seqs less than 1 month old. Query: G2060A, C23601T |
Branch 9: XEC+Orf1a:A599T+S:E1202Q, 2 seqs, France + Ireland. Query: G2060A,C11020T,G25166C |
Br.7 went to 8 with three GBW samples from Peru' (2 patients) |
Branch 10/11: XEC+S:W152R (defining for Centaurus) arose convergently: Branch 10 via T22016A (1xNL, 1xFR). Branch 11 via T22016C (1xIR, 1xUSA). All seqs sampled in September |
Branch 12: XEC+S:T678I (C23595T), furin-adjacent. 4xCAN, 2xFR, 2xUSA. Convergent: one on the Orf1a:I1367L, the rest on the Orf1a:A599T polytomy. All seqs sampled in September |
Please separate these branches and ensure every branch is monoplyetic. |
Branch 14: XEC+S:P1263L(C25350T), same site as branch 13. 1xSW,1xPL. |
Please check with usher before proposing. They seem to be on different usher branches. If they are on different usher branches it is likely they emerge separately and shouldn't be treated as one. Unless you provide reason (artifact, usher-flip flop, convergent other mutations like branch 7, etc. ) to merge them. |
IMO, at present the relatively low number of XEC seqs makes it hard to correctly assess the phylogeny, the resolution is still insufficient. The total XEC Usher tree still places most seqs on polytomy. |
@aviczhl2 i think soon we will be force to raise the parameters to three places and 10 seqs, i tell this because in my previous experience with spike diversity issues it rapidly becomes very mess or too long with the opposite effect to risk hiding something fast instead of highlighting it. It is not yet the moment but we shopuld think about it. |
Branch 15: XEC+Orf1a:A599T+S:K182N. 3xNL, 1xENG, 1xCanary Islands (with additional S:M153I). Monophyletic, query: C829T, A22108T |
Not a Branch but worth tracking: XEC + Orf1a:A599T+ S:A475V |
Solved 5 now from Br.8 also from Germany it looks interesting
|
Branch 16: XEC+Orf1a:A599T+S:G72R. 5 seqs, 5 countries: Denmark, Netherlands, France (with S:K113R), Canada, GBW from Mexico. Query: G2060A, G21776A,T3565C (edited) |
i ve added T3565C to exclude old samples. |
You can directly edit the task list. But be cautious on cvejris proposals that may not be monophyletic. |
yeah i m a bit confused about the branch numbering . @cvejris i suggest just to add the lineage you find without a branch number |
XEC+ Orf1a:A599T + S:P561H (C23244A) |
Important (likely): XEC got S:I68F (by Gisiad correctly) ( read as S:-70F by USher, Covspectrum and Nextclade ) : Now added as branch 13 Ping @corneliusroemer here something to watch |
Jumped to 7 with a batch from France, 2 different provinces |
+3 GBW from Turkey, you can propose it to main. |
add branch 18(S:H49Y) and branch 19(E1202K) |
Q52L |
i am tracking one with it from Slovenia with A21717T ,T23542C , 3 seqs is it the same? |
Upon closer look, S680F does not appear monophyletic, but heavily convergent. Many sequences are part of larger lineages (defined by C7086T or C7086T+C28093T), which originally lacked S680F. For sequences on the Orf1a:A599T polytomy, I would guess these are convergent too. |
C7086T is a very convergent mutation. It could be first getting S680F then get C7086T. |
446I in Wales and Australia |
You too waiting for RBD mutations? :) I´m tracking V445R (3-nuc) - still only 3 seqs from 3 countries, but convergent, not monophyletic |
Ah good to know it is spreading further i saw that too but it was a singlet |
add branch 20, G75R on XEC.2 |
Br.7 up to 29 @cvejris please verify if still splitted in two and if so which one is growing |
More than two. See the distribution of mutations: There appear two clusters which imo could be considered branches, the rest is either convergent or "phylogenetically illegible":
Which should I propose? |
none of them i will separate it in two branches |
Br.17 up to 8 fastly |
This has been added as Branch 22 now |
S:S31F (C21654T): 5seqs total - 2x XEC.2 (US, Denmark), 3x Orf1a:A599T branch (Germany, France 2x) |
add branch 23(V1228L) |
This one(branch 11) is 21 now, please propose it, |
Can you please add XEC+ Orf1a:A599T+S:T678I to the list above? Curently 16 seqs (6xCanada, 3xNetherlands, 3xFrance, 2xAustralia, 1xNew Zealand, 1xJapan). Query G2060A, C23595T |
K150R,K529E,S704L 4, Czech rep. |
Q173R |
G20062A,C20946T,G22599C,C29535T R346T |
16 now C18657T, C22329T, C24382T |
V705I |
proposed already #2182 |
there're several |
Also emergence of S:V308L and (in another branch) S:S704L on XEC.2 backbone in Canada cluster as S:Q173R mentioned by @Over-There-Is thx @NkRMnZr i ve seen those 222V ones too. |
There is a singlet in Singapore with S:I68V and S:A475V : C22986T, C29303T,T6451C |
S:T716I also Canadian Cluster |
It seems that there is, and will be a lot of spike diversity in XEC. Better gather them in one issue.
Only count for branches with more than 5 seqs from 2 places, or from 3 or more places (NEW)
GPT Model trained on August data(seqs before XEC appears) predicts 4 spike mutations for XEC on top potential mutation list: S:T572I, S:R346T, S:N185D, S:A688V.
Tasks
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