SKU: 66174773686

Spike RBD His Tag, SARS-CoV-2 (BA.4 /Omicron)

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Description

Spike RBD His Tag, SARS-CoV-2 (BA.4 /Omicron)Product Specification Species SARS CoV 2 Accession P0DTC2 Amino Acid Sequence RVQPTESIVRFPNITNLCPFDEVFNATRFASVYAWNRKRISNCVADYSVLYNFAPFFAFKCYGVSPTKLNDLCFTNVYADSFVIRGNEVSQIAPGQTGNIADYNYKLPDDFTGCVIAWNSNKLDSKVGGNYNYRYRLFRKSNLKPFERDISTEIYQAGNKPCNGVAGVNCYFPLQSYGFRPTYGVGHQPYRVVVLSFELLHAPATVCGPKKSTNLVKNKCVNFGGGSHHHHHHHH Expression System HEK293 Molecular Weight 35 40 kDa(Reducing) Purity 95%, by SDS PAGE under reducing conditions Endotoxin <0. 1EU g

Product Specification


Species SARS-CoV-2
Accession P0DTC2
Amino Acid Sequence RVQPTESIVRFPNITNLCPFDEVFNATRFASVYAWNRKRISNCVADYSVLYNFAPFFAFKCYGVSPTKLNDLCFTNVYADSFVIRGNEVSQIAPGQTGNIADYNYKLPDDFTGCVIAWNSNKLDSKVGGNYNYRYRLFRKSNLKPFERDISTEIYQAGNKPCNGVAGVNCYFPLQSYGFRPTYGVGHQPYRVVVLSFELLHAPATVCGPKKSTNLVKNKCVNFGGGSHHHHHHHH
Expression System HEK293
Molecular Weight 35-40 kDa(Reducing)
Purity

＞95%,  by SDS-PAGE under reducing conditions
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized Powder
Storage Buffer PBS, pH7.4
Reconstitution Reconstitute at less than 1 mg/mL according to the size in ultrapure water after rapid centrifugation.
Stability & Storage

· 12 months from date of receipt, -20 to -70 °C as supplied. 
· 6 months, -20 to -70 °C under sterile conditions after reconstitution.
· 1 week, 2 to 8 °C under sterile conditions after reconstitution.  
· Please avoid repeated freeze-thaw cycles.

Background

Coronaviruses (CoVs) are enveloped viruses with a positive sense RNA genome, that belong to the subfamily Coronavirinae within the family Coronaviridae, which is part of the Nidovirales order. The CoV virion contains at least four structural proteins: spike (S), envelope (E), membrane (M) and nucleocapsid (N). Among them, the S protein plays an essential role in viral attachment, fusion, entry, and transmission. It comprises an N-terminal S1 subunit responsible for virus–receptor binding and a C-terminal S2 subunit responsible for virus–cell membrane fusion. S1 is further divided into an N-terminal domain (NTD) and a receptor-binding domain (RBD). During infection, CoV first binds the host cell through interaction between its S1-RBD and the cell membrane receptor, triggering conformational changes in the S2 subunit that result in virus fusion and entry into the target cell.

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 66174773686

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4.9 ★★★★★
Based on 22 reviews
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Product Reviews
A
Verified Purchase
Aishwarya S
Draper, US
★★★★★ 4
Effective but slightly greasy
I purchased this for my brother, who has been suffering from eczema and psoriasis for over a decade, and he's never been able to find a product that works for him for longer than a few weeks. The product had already leaked and wasn't packed properly when it arrived, so the sides of the jar were extremely greasy. Absorption is great - it looks like the skin drinks it right up, if applied nominally. I can't speak to long-term effects yet, but there is an immediate reduction in redness and flakiness. Itching does not subside.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
K
Verified Purchase
Kate
Whiting, US
★★★★★ 5
Highly recommend! Lifesaver for sensitive dry eczema
Bought this with their face wash, no regrets. My sensitive, peeling eczema face was getting red and uncomfortable (not to mention peeling no matter what special Derm sample products I tried). This is THICK. A little goes a long way. I pat it into my face and dry eczema patches after using the face wash. It lasts awhile, love that it contains aloe. My redness and literal peeling nose, cheek and chin are 80% better after using 2wks. Immediately felt better with first use. Cannot really use under makeup! This is heavy and a bedtime product.
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Reviewed in the United States on March 29, 2026
A
Verified Purchase
Amye Pitts
Lexington, US
★★★★★ 5
It does work!
My child was diagnosed with severe eczema and takes the Dupixent shot once a month. He had to stop it for a month before and a month after in order to take his live MMR vaccine. This cream is the first one we have used the actually works. He will still have to get back on his shots, but for a baby with mild to moderate eczema, this might do the trick! Tried it on myself in a few spots and could tell a difference overnight.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
X
Verified Purchase
xoxo_coco6693
Waukegan, US
★★★★★ 3
Works but packaging is not good,
This stuff really helped my daughter's eczema so I ordered again but when I took the film off the container the jar was oily. I opened the jar and the seal was completely off, stuck to the top of the lid and there was specks that weren't in the last jar. I'm pretty disappointed.
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Reviewed in the United States on April 18, 2026
T
Verified Purchase
ts
Cuba, US
★★★★★ 4
Temporary relief well worth it.
4 stars only because this has not cleared up my 1 year olds eczema in days like the ads say. It IS a great product though. We have gone through almost 3 jars in a week and a half, the skin just seems to soak it in. It has dramatically improved the inflammation and flaky-ness but unfortunately the deep itch persists. We have safely used it on eyelids. It does have an interesting smell to it, I don't mind it but my 9 year old comments on it every time it's used. Product works well enough and provides temporary relief that we've purchased other items from the shop.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026

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