Are Moderna/Pfizer/JJ/AZ using the same code for the spike?

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In summary, the four COVID-19 vaccines currently available, Moderna, Pfizer, Johnson & Johnson, and Astrazeneca, all use the genetic code for the spike protein of the coronavirus to create immunity. While the exact genetic codes may differ slightly, they are all based on a prefusion stabilized, membrane-anchored SARS-CoV-2 full-length spike protein. This discovery was made by early researchers and passed on to Moderna and Pfizer. The safety systems for vaccines have paused the use of the Johnson & Johnson vaccine due to reports of rare and severe blood clots. If experiencing symptoms, seek medical care immediately.
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brajesh
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Are Moderna/Pfizer/JJ using the same genetic code to make the spike?
Given the variants of the corona virus now appearing, I was wondering,

Are Moderna, Pfizer and Johnson and Johnson and Astrazeneca all using the same genetic code to create the spike protein?
Or more specifically, the spike protein that's made by our body, is it the identical spike protein in all these four vaccines?

I hope this question makes sense?
 
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I'm not sure whether the genetic codes used are exactly the same, but for Pfizer, Moderna, and J&J they should be effectively the same as they are based on a prefusion stabilized, membrane-anchored SARS-CoV-2 full-length spike protein from Jason McLellan's group at UT Austin.

https://news.utexas.edu/2020/02/19/...results-in-new-map-to-support-vaccine-design/
https://science.sciencemag.org/content/367/6483/1260

https://www.nejm.org/doi/full/10.1056/NEJMoa2034577 (Pfizer/BioNTech)
https://www.nejm.org/doi/full/10.1056/nejmoa2022483 (Moderna)
https://www.nationalgeographic.com/...s-solving-puzzle-yielded-coronavirus-vaccines (Pfizer, Moderna, Novavax, Johnson & Johnson)
 
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Recommendation to Pause Use of Johnson & Johnson’s Janssen COVID-19 Vaccine
Updated Apr. 20, 2021
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What you need to know:
The use of Johnson & Johnson’s Janssen (J&J/Janssen) COVID-19 Vaccine is paused for now. This is because the safety systems that make sure vaccines are safe received a small number of reports of people who got this vaccine experiencing a rare and severe type of blood clot with low platelets.
Seek medical care right away if you develop any of the symptoms below.
If you have any questions at all, call your doctor, nurse, or clinic.
[ . . .]
###
https://www.cdc.gov/coronavirus/2019-ncov/vaccines/safety/JJUpdate.html
 

1. Are Moderna, Pfizer, Johnson & Johnson, and AstraZeneca using the same code for the spike?

No, each of these companies has developed their own unique code for the spike protein in their COVID-19 vaccines.

2. How do these companies develop their code for the spike protein?

Each company uses a different approach to develop their code, such as using mRNA technology (Moderna and Pfizer) or adenovirus vectors (Johnson & Johnson and AstraZeneca).

3. Is there any difference in effectiveness between the different codes for the spike protein?

While all of the COVID-19 vaccines have been found to be highly effective in preventing severe illness and death, there may be slight differences in effectiveness due to the different codes used for the spike protein. However, all of the vaccines have been shown to be effective in preventing COVID-19.

4. Can the different codes for the spike protein be used interchangeably?

No, the different codes for the spike protein are not interchangeable. Each vaccine is specific to the code used and has been extensively tested for safety and effectiveness.

5. Will the different codes for the spike protein affect the ability to receive booster shots or mix and match vaccines?

It is currently unclear if the different codes for the spike protein will affect the ability to receive booster shots or mix and match vaccines. More research is needed in this area, but it is likely that individuals will need to receive boosters and vaccines from the same manufacturer.

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