1/ Directed Evolution and Serial passage of RNA Viruses
A quick (I hope) thread on RNA viruses & some others, mainly for my own learning process, but also as evidence (as if it was needed) of what modern virology & microbiology is capable of doing to viruses in their laboratories

2/ In Vivo Continuous Directed Evolution
1 Recent advances in the field of in vivo continuous evolution
2 Advances in continuous culture of microbes enable continuous evolution
3 Viruses, prokaryotes, & eukaryotes mediate in vivo continuous evolution
https://t.co/BfR0B2Hwsf
3/ Continuous Directed Evolution of Biomolecules
By greatly accelerating laboratory evolution, PACE may provide solutions to otherwise intractable directed evolution problems and address novel questions about molecular evolution.
https://t.co/G3mIptI54H
4/ CDE for Strain & Protein Engineering
Inducible hypermutator systems accelerate strain evolution without compromising genome integrity.
Site-specific in vivo mutagenesis strategies have facilitated continuous protein engineering.
Automation possible!
https://t.co/pCxT250sKW
5/ Targeted mutagenesis:
A sniper-like diversity generator in microbial engineering
https://t.co/wdKyXghRYe
Advances in the directed evolution of proteins
https://t.co/1xXTtw1i3i
In vivo continuous directed evolution
https://t.co/xKRVSjVvo4
6/ Adaptable Platform for Directed Evolution in Human Cells
dynamic range for DE increased via application of small-molecule adenoviral protease inhibitor to modulate selection pressure during DE experiments. (paywall)
https://t.co/HHSm0u3I4m
support info:
https://t.co/F29aEZfkTU
7/ Scalable, Continuous Evolution of Genes at Mutation
Rates above Genomic Error Thresholds:
(nice infographics, see attached images)
https://t.co/CNidbmviSR
Optimization of enzymes via directed evolution in vivo (thesis)
https://t.co/Cq7m8aDgVb
8/ Evolutionary Potential of an RNA Virus
in vitro evolution system using recombinant double-stranded RNA bacteriophage, φ6, containing a β-lactamase (bla) gene marker
Results show use of RNA virus as vehicle for directed evolution of heterologous proteins
https://t.co/VxXjHpc214
9/ Lab RNA Virus Mimics Natural Evolution!
Do lab evolved virulence determinants mimic natural ones?
Using a plant RNA virus, SMV, via serial in vivo passage experiment, they showed:
Experimentally evolved virulence determinants identical to natural ones
https://t.co/aNcoBOnSe4
10/ Nasty Title:
"Quantitative Modeling of Virus Evolutionary Dynamics and Adaptation in Serial Passages Using Empirically Inferred Fitness Landscapes"
https://t.co/BctOBeyZBm
RNA Virus Mutations and Fitness for Survival
https://t.co/CNDcSCRiu2
11/ Serial passage in Wuhan with Deyin Guo!
To understand adaptation of H5N1 to mammals, a non-pathogenic H5N1 virus (HN021) in mice was passaged 15 times in mammals.
Experiment showed mouse-adapted variants highly pathogenic in mice after passages
https://t.co/QBLpvNVg0g
12/ Effect of PB2 Mutation 627K on Highly Pathogenic H5N1 Avian Influenza Virus Is Dependent on Virus Lineage (UK Research)
https://t.co/rUgqk2vHgT
A 627K variant in the PB 2 protein of H9 subtype influenza virus in wild birds (Harbin & Guandong)
https://t.co/Y6DM5eRcjU
13/ RNA virus experimental evolution
1 New virus that infects otherwise inaccessible host & completely changes way it interacts with host regulation & metabolism
2 Cooperation & cheating during co-infection of same host.
3 Incorporation & loss of genes
https://t.co/A93ADvFlJK
14/ Major Synthetic Evolutionary Transitions (Philosophy)
"parallel class of evolutionary transitions can be explored involving the use of artificial evolutionary experiments where alternative paths to innovation can be explored"
https://t.co/IzxFysxRME
https://t.co/nhTF4ZnTjP
15/ Evolutionary Pathway to Virulence of RNA Virus
Video Abstract
https://t.co/RgYzp5nimc
1. Key substitutions adaptive in epidemics also observed in in vitro systems
2. Evolution of viral replication can be inferred in tissue culture over short time-frame
https://t.co/WFJXslscvq
16/ In vivo continuous directed evolution:
"advent of increasingly general methods for continuous directed evolution enables researchers to address increasingly complex questions & to access biomolecules with more novel or even unprecedented properties"
https://t.co/YAhLgfMMiK
17/ Time for a Game!
Impact of RNA Virus Evolution on Quasispecies
"We explore how genetic events such as spontaneous mutations could alter the genomic organization of RNA viruses in such a way that they impact virus replications & plaque morphology"
https://t.co/nfhsZI3f46
18/ Pigs, Guinea Pigs & Rabbits Butchered in Peking
Flu A Virus Acquires Enhanced Pathogenicity & Transmissibility after Serial Passages in Swine
After 9 serial passages in pigs, engineered swine flu virus had greatly enhanced virulence & transmissibility!
https://t.co/NflCS1d2ux
19/ RNA Recombination Enhances Adaptability & Required for Virus Spread & Virulence
1. Recombination significantly accelerates adaptation and evolution during acute virus infection.
2. Essential to enrich beneficial mutations & purge deleterious mutations
https://t.co/AgG8XVCRvR
20/ Directed evolution of multiple genomic loci
"By building on multiplex automated genome engineering, we developed a method that enables precise mutagenesis of multiple, long genomic segments in multiple species without off-target modifications.
https://t.co/sBdXdnTQH4
21/ Enough Directed Evolution of Tweets for one day!

Got some real work to do, will update tomorrow

More from Billy Bostickson 🏴👁&👁 🆓

@snip96581187 @Daoyu15 @lab_leak @walkaboutrick @ydeigin @Ayjchan @franciscodeasis @TheSeeker268 @angie_rasmussen Clearly, because as I have been saying for 8 months now, DTRA and DARPA have been using Ecohealth and UC Davis to collect novel pathogens for gain of function work back in the USA. I have documented this in many threads which I will post here just to annoy everyone.

@Daoyu15 @lab_leak @walkaboutrick @ydeigin @Ayjchan @franciscodeasis @TheSeeker268 @angie_rasmussen


@Daoyu15 @lab_leak @walkaboutrick @ydeigin @Ayjchan @franciscodeasis @TheSeeker268 @angie_rasmussen


@Daoyu15 @lab_leak @walkaboutrick @ydeigin @Ayjchan @franciscodeasis @TheSeeker268 @angie_rasmussen


@Daoyu15 @lab_leak @walkaboutrick @ydeigin @Ayjchan @franciscodeasis @TheSeeker268 @angie_rasmussen
1. Omicron Thread - A Compilation of Opinions

"finally, the time has slip and slid its slimy course through to us - and we're the vicious bastards of the new generation. we do not relent, and we should not be held to account for our ancestral faults"

https://t.co/mhJO6yOQRE


2. The Letter Chosen by the WHO

"It's amazing that the Xi variant seems to have somehow managed to evade detection..."

via @readomain

Why 'Omicron', Not 'Nu' or 'Xi'?

WHO Says Two Letters in Greek Alphabet Jumped to 'Avoid Stigma'

https://t.co/xnGR9XK2tF


3. The Omicron variant has been found in nearly every province of South Africa, as well as Botswana, Belgium, Israel, UK and Hong Kong.

This month, Israel held an exercise, The “Omega Exercise”, meant to prepare for a hypothetical, new COVID-19

4. Omicron Infographic

(appeared in Germany and Italy now)

https://t.co/oNFYBH1F1o


5. Overview of Omicron (B.1.1.529) from @nicd_sa

https://t.co/HN9csJqK0z
1/X Bellagio Rockefeller Initiative (Global Virome Project)
Another look at some key people in the GVP & their media statements since January 2020 about "natural origin" and impossibility of a "lab leak"
Full List of 18 scientists in photograph is here:
https://t.co/yHoAjwQjI8


2/X
We have already looked closely at Dennis Carroll, Peter Daszak, George Gao, W. Ian Lipkin & seen their public statements supporting "natural origin" & hysterical attacks on "lab leak" theories.
This thread focuses on:
Michael Kurilla
Jonna Mazet
Edward Rubin (Metabiota)

3/X
If we look at the leadership team of GVP, you will see some familiar faces:
https://t.co/WdT8sNnfmy
Most familiar is probably Peter Daszak, the wealthy Treasurer, also with the key role of Secretary.
Note: USAID PREDICT Project - EcoHealthAlliance


4/X
The "Chair" is Dr. Dennis Carroll
We will have a look at his media statements on the coronavirus pandemic by inputting his name in Twitter search box (very easy!)
Note: Previously was Director of USAID Emerging Pandemic Threats Program


5/X Dennis Carroll's video media statements (1):
CNN
(note Qinghai Thangka positioned in background which Daszak also shows off in his videos obtained during EcoHealth virus hunt with
1/ BIO TERROR! History, Present and Future....
Human experimentation, modern nightmares and lone madmen in the twentieth

2/ BIO TERROR! History, Present and Future....
The History of Biological Weapons Use:
What We Know and What We Don't. W. Seth

3/ BIO TERROR! History, Present and Future....
Biological Warfare in the 17th Century
W. Seth Carus
https://t.co/GEnU8fUC3m
and
Biological Warfare Plan in the 17th Century—the Siege of Candia,

4/ BIO TERROR! History, Present and Future....
Biological Warfare at the 1346 Siege of Caffa
https://t.co/BQZ8riLq1o
The 'Hittite Plague', an Epidemic of Tularemia and the First Record of Biological

5/ BIO TERROR! History, Present and Future....
The Plague of Athens: An Ancient Act of Bioterrorism?
https://t.co/YjiG4PspCA
Applying Modern Immunology to the Plague of
Ancient

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