Keep dwelling on this:
Further Examination of the Motif near PRRA Reveals Close Structural Similarity to the SEB Superantigen as well as Sequence Similarities to Neurotoxins and a Viral SAg.

The insertion PRRA together with 7 sequentially preceding residues & succeeding R685 (conserved in β-CoVs) form a motif, Y674QTQTNSPRRAR685, homologous to those of neurotoxins from Ophiophagus (cobra) and Bungarus genera, as well as neurotoxin-like regions from three RABV strains
(20) (Fig. 2D). We further noticed that the same segment bears close similarity to the HIV-1 glycoprotein gp120 SAg motif F164 to V174.
https://t.co/EwwJOSa8RK
In (B), the segment S680PPRAR685 including the PRRA insert and highly conserved cleavage site *R685* is shown in van der Waals representation (black labels) and nearby CDR residues of the TCRVβ domain are labeled in blue/white
https://t.co/BsY8BAIzDa
Sequence Identity %
https://t.co/BsY8BAIzDa
Y674 - QTQTNSPRRA - R685
Similar to neurotoxins from Ophiophagus (cobra) & Bungarus genera & neurotoxin-like regions from three RABV strains
T678 - NSPRRA- R685
Superantigenic core, consistently aligned against bacterial or viral SAgs
Y674QTQTNSPRRAR685
Reference 21:
A nicotinic hypothesis for Covid-19
https://t.co/EWmVWI5jYr
Above all, fantastic news for chain smokers! (if true)
Keep on Puffing, Ignore the Guys in White Coats!
https://t.co/EWmVWI5jYr
Anyway, this is where Cheng et al (2020) got the neurotoxin motifs from
Superantigenic character of insert unique to SARS-CoV-2
https://t.co/EwwJOSa8RK
Reference 22 (from preprint) reveals more...
Bracci L., Ballas S. K., Spreafico A., Neri P., Molecular mimicry between the rabies virus glycoprotein and human immunodeficiency virus-1 GP120: cross-reacting antibodies induced by rabies vaccination.
https://t.co/UZbe658OGR
Something important here but I can't connect the dots
(apart from being good news for smokers...)
Maybe someone else can unravel the implications?
@Parsifaler @w_mccairn @Rossana38510044
The Rubber Policeman..
"For binding experiments, cells were harvested mechanically with a rubber policeman & centrifuged"
Binding of HIV-1 gp120 to the nicotinic receptor (1992)
https://t.co/6veoEkVbVp
Referenced in Bracci et al (1997)
https://t.co/UZbe658OGR
earliest reference to this would be in 1990 by same authors (Bracci et al)
Sequence homology between HIV gp120, rabies virus glycoprotein, and snake venom neurotoxins - Is the nicotinic acetylcholine receptor an HIV receptor?
https://t.co/XGVUNyORP3
HIV GP120 /Snake Venom/Rabies GP Neurotoxin loop confirmed
(Sönnerborg & Johansson, 1993)
The neurotoxin-like sequence of human immunodeficiency virus GP120: A comparison of sequence data from patients with and without neurological symptoms
https://t.co/s8DIeMNMmD
Some loose references I don't have time to explore now:
1. Molecular mimicry of HIV gp120 (2005) https://t.co/KzfEpbjbvk
2. McCoy cell line as a possible model containing CD4+ receptors for the study of HIV-1 replication
https://t.co/iG8NSrGrlI
Some loose references I don't have time to explore now:
3. Snake envenomation https://t.co/uJy1bi7NEU
4. Modified venom and venom components as anti-retroviral agents (PATENT)
https://t.co/VRH0gJlbqM
Loose references I don't have time to explore now:
5. Recombinant Newcastle disease virus (NDV) strain rL-RVG expressing the rabies virus glycoprotein
https://t.co/31SNcPXNYJ
6. Structure, Function, and Antigenicity of the SARS-CoV-2 Spike Glycoprotein
https://t.co/Ce9cAEOCQH
One way that SARS-COV-2 gets in your brain
Role of HIV gp120 in crossing blood brain barrier
Interactions of SARS-CoV-2 with the Blood–Brain Barrier
https://t.co/oZWRqn5cGr
HIV-1 protein gp120 crosses the blood-brain barrier role of adsorptive endocytosis
https://t.co/9pdkqSt0xz
Jack Sim's Final Thesis before something happened to him down at the Cardiff Docks...
Final Thesis Jack Sim
In-vitro Characterisation of Targeting Ligands for
Enhanced Delivery Across the Blood-Brain Barrier
https://t.co/GAURhTA376
A potential interaction between the SARS-CoV-2 spike protein and nicotinic acetylcholine receptors
https://t.co/XQ71CTh93k
Binding Confirmed Again
Simulations support the interaction of the SARS-CoV-2 spike protein with nicotinic acetylcholine receptors and suggest subtype specificity
https://t.co/umDn3S549X
Above paper also here:
Simulations support the interaction of the SARS-CoV-2 spike protein with nicotinic acetylcholine receptors
https://t.co/1Qg0tKg3YI
Media Review:
https://t.co/2yyYJw3zVv
1. SAg-like motif on SARS-CoV-2 spike distinguished by its high sequence- & structural-similarity to a segment of SEB.
2. SARS-CoV-2 spike may act as a superantigen to trigger the development of MIS-C as well as cytokine storm in adult COVID-19 patients
https://t.co/sXQyd7kMx5
SAg and SEB gonna get you!
COVID-19–associated multisystem inflammatory syndrome in children (MIS-C): A novel disease that mimics toxic shock syndrome—the superantigen hypothesis
https://t.co/NxmPM719VB
Can COVID-19 pandemic boost the epidemic of neurodegenerative diseases?
https://t.co/b8PssOG6my
SEB confirmed again
Smoking Break
1. What is Happening with Smokers and COVID-19?
https://t.co/wXGYU9EjAp
2. Cytokine Release Syndrome (CRS) and Nicotine in COVID-19 Patients
https://t.co/3oA9sWOTaU
and
https://t.co/4yGz47igy2
3. Involvement of nicotine receptors in COVID-19
https://t.co/0GtJwhu9tU
Back to the SEB Mystery - @w_mccairn @Parsifaler
Who put the Benzedrine in Mrs Murphy's Ovaltine?
Who put SAg & SEB in SARS COV-2's Spike Protein?
Note:
A monoclonal antibody against staphylococcal enterotoxin B superantigen inhibits SARS-CoV-2 entry
https://t.co/x7iAVt4Zvm
Nasty, very Nasty!
But a solution is proposed...
A monoclonal antibody against staphylococcal enterotoxin B superantigen inhibits SARS-CoV-2 entry in vitro
https://t.co/x7iAVt4Zvm
and
https://t.co/NgZ7aNd2KS
A nice summary of the issue of mimicry between HIV-1 gp120, Rabies Glycoprotein, Snake Neurotoxin, as well as the role of Nicotinic Receptors, hence smoking as prophylaxis:

Molecular mimicry between rabies virus glycoprotein & HIV-1 GP120
https://t.co/Ahp5mE27uI
This concept has even evolved into a vaccine
A Novel Vaccine Employing Non-Replicating Rabies Virus Expressing Chimeric SARS-CoV-2 Spike Protein Domains: Functional Inhibition of Viral/Nicotinic Acetylcholine Receptor Complexes
https://t.co/Zp6gHLPE1x
Superantigens and Long Covid?
Persistent SARS-2 infections contribute to long COVID-19
https://t.co/R5UI7pOynJ
For the Curious:
Dampened Bat Immune System Interferon Response?
Let's finish with a question:
Why COVID-19 Transmission Is More Efficient and Aggressive Than Viral Transmission in Previous Coronavirus Epidemics?
https://t.co/yNTOP9Lf37
Good Luck with finding the answers!
Serial passage is likely a factor in this issue, as @Harvard2H pointed out:
https://t.co/9iQQBiUjaS
References 145, 146 & 147 for the curious:
https://t.co/yNTOP9Lf37
Host resistance influences patterns of experimental viral adaptation
https://t.co/gnLm32z0G6

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
@EricTopol @NBA @StephenKissler @yhgrad B.1.1.7 reveals clearly that SARS-CoV-2 is reverting to its original pre-outbreak condition, i.e. adapted to transgenic hACE2 mice (either Baric's BALB/c ones or others used at WIV labs during chimeric bat coronavirus experiments aimed at developing a pan betacoronavirus vaccine)

@NBA @StephenKissler @yhgrad 1. From Day 1, SARS-COV-2 was very well adapted to humans .....and transgenic hACE2 Mice


@NBA @StephenKissler @yhgrad 2. High Probability of serial passaging in Transgenic Mice expressing hACE2 in genesis of SARS-COV-2


@NBA @StephenKissler @yhgrad B.1.1.7 has an unusually large number of genetic changes, ... found to date in mouse-adapted SARS-CoV2 and is also seen in ferret infections.
https://t.co/9Z4oJmkcKj


@NBA @StephenKissler @yhgrad We adapted a clinical isolate of SARS-CoV-2 by serial passaging in the ... Thus, this mouse-adapted strain and associated challenge model should be ... (B) SARS-CoV-2 genomic RNA loads in mouse lung homogenates at P0 to P6.
https://t.co/I90OOCJg7o
1/10 What's all this then?
Biotech or biohazard?
A proposed federal lab in Butner would study the world's deadliest diseases
https://t.co/krnmueAd80
is it being built there or elsewhere, at Kansas University?


2/10 Shades of Plum Island?
New Proposal:
https://t.co/Lv3FgBgyas
GAO reports on security and safety lapses at Plum Island Animal Disease Research Center
Plum Island 1: https://t.co/pXSHgg1KKN
Plum Island 2:
https://t.co/O9oS0WXYOz


3/10 National Bio and Agro-Defense Facility
By memo dated December 4, 2008, the Department of Homeland Security named the Kansas site as the preferred location for the NBAF. On January 16, 2009, the record of decision was published in the Federal

4/10 Lucky ole Kansas!
The $1.25 billion facility is a biosafety level-4 laboratory and will replace the aging Plum Island Animal Disease Center.
NBAF is expected to be operational by 2022-2023.
Manhattan, Kansas, was selected as the location for NBAF.
https://t.co/kiokkFsT6v


5/10 The facility continues forward - Apr 19, 2020
https://t.co/JlstInKIRS
https://t.co/DtbLD9Tvxb
The 500,000 square foot building will have a $3.5 billion impact on the Kansas economy and many lab

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THIS.

Russia hasn't been a willing partner in this treaty for almost 3 decades. We should have ended the pretense long ago.

Naturally, Rand Paul is telling anyone who will listen to him that Trump is making a HUGE MISTAKE here.


Rand is just like his dad, Ron. 100% isolationist.

They've never grasped that 100% isolationist is not 'America First' when you examine it. It really means 'America Alone'.

The consistent grousing of pursuing military alliances with allies - like Trump is doing now with Saudi Arabia.

So of course Rand has also spent the last 2 days loudly calling for Trump to kill the arms deal with Saudi Arabia and end our alliance with them.

What Obama was engineering with his foreign policy was de facto isolationism: pull all the troops out of the ME, abandon the region to Iranian control as a client state of Russia.

Obama wasn't building an alliance with Iran; he was facilitating abandoning the ME to Iran.

Obama wouldn't even leave behind a token security force, so of course what happened was the rise of ISIS. He also pumped billions of dollars into the Iranian coffers, which the Mullah's used to fund destabilizing activity [wars/terrorism] & criminal enterprises all over the globe