SKU: 30612591511

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

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Description

Spike RBD His Tag Protein, 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, lyophilized powder stored at -20 to -80℃.
· 3 months, -20 to -80℃ under sterile conditions after reconstitution.
· 1 week, 2 to 8℃ 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.

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Exchange/Return Notes
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SKU: 30612591511

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Elsviel
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★★★★★ 5
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These T-shirts are very comfortable and perfect for daily wear. The fabric feels soft on the skin and the fit is just right for casual use. They are breathable and hold up well after washing, making them a reliable basic wardrobe item. Overall, a simple but high-quality multipack that I really enjoy wearing.
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Reviewed in the United States on May 22, 2026
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EgLhan
Bozeman, US
★★★★★ 5
Great fabric
Number of Items: 5, Color: Black/Sport Grey/Charcoal, Size: Large
The Gildan Men's Crew T-Shirts (Style G1100) are the ultimate essential for anyone seeking a reliable, high-quality basic that holds its own against more expensive brands. These shirts feature a heavyweight cotton construction that provides a structured fit and stays opaque wash after wash, while the taped neck and shoulders ensure the collar and seams remain durable under daily use. With a tag-free design and breathable fabric, they offer a comfortable, irritation-free experience that makes them a perfect "set-it-and-forget-it" staple for any wardrobe.
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Reviewed in the United States on April 19, 2026
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anthony
Los Angeles, US
★★★★★ 4
Good quality and value for my son!
Number of Items: 5, Color: Black/Sport Grey/Charcoal, Size: Large
I bought the Gildan Men’s Crew T-Shirts multipack on Amazon for my 12-year-old son, who is on the heavier side and thus sometimes difficult to shop for. Pre-teen kids grow fast and go through clothes quickly, so I didn’t want to spend a lot of money on basics he’ll probably outgrow in a year. These shirts are really affordable, especially for a multipack, and the quality is surprisingly good for the price. The fabric is soft and comfortable, and my son says they feel good to wear all day at school. They’re lightweight and did not shrink after washing. I also like that the shirts don’t get stretched out like some cheaper T-shirts do. The fit works well for him too. They’re simple, classic crew neck tees that can be worn on their own or layered under hoodies and jackets. We’ve used them for school and just everyday wear. Another thing I appreciate is that they’re easy to care for. I just toss them in the wash and dryer and they come out looking fine every time. Overall, these are a great value. If you need affordable, comfortable basic T-shirts for a growing kid (or an adult!), this pack is definitely worth buying.
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Reviewed in the United States on May 17, 2026
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Arod56
Port Orchard, US
★★★★★ 5
Nice
Number of Items: 5, Color: Navy/Charcoal/Cardinal Red, Size: Large
My husband really likes the quality of these t-shirts. They fit nicely and dont have a sagging neckline as some t-shirts tend to have. The colors are nice and they wash up well. Not a heavy so comfortable for everyday use whether relaxing, doing yard work etc
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Reviewed in the United States on May 14, 2026
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Bill Warfield
Charlottesville, US
★★★★★ 5
Great t shirts
Number of Items: 5, Color: Navy/Heather Navy/Indigo Blue, Size: Large
Great t shirts. They fit great, and are very comfy as an under shirt or just a solid color shirt. Have washed them multiple times and they still hold up good, don’t wrinkle easy, and colors have stayed nice. The fit is great, can definitely be used for work, gym, whatever, just good comfy shirts
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Reviewed in the United States on May 8, 2026

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