SKU: 82549137443

Spike RBD His Tag, SARS-CoV-2(B.1.1.529/Omicron, N terminal)

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Description

Spike RBD His Tag, SARS-CoV-2(B.1.1.529/Omicron, N terminal)Product Specification Species SARS CoV 2 Accession P0DTC2 Amino Acid Sequence Arg319 Phe541, with N terminal 8*His HHHHHHHHGGGGSDYKDDDDKRVQPTESIVRFPNITNLCPFDEVFNATRFASVYAWNRKRISNCVADYSVLYNLAPFFTFKCYGVSPTKLNDLCFTNVYADSFVIRGDEVRQIAPGQTGNIADYNYKLPDDFTGCVIAWNSNKLDSKVSGNYNYLYRLFRKSNLKPFERDISTEIYQAGNKPCNGVAGFNCYFPLRSYSFRPTYGVGHQPYRVVVLSFELLHAPATVCGPKKSTNLVKNKCVNF Expression System HEK293 Molecular Weight 35 43kDa (Reducing) Purity >95% by SDS PAGE Endotoxin

Product Specification


Species SARS-CoV-2
Accession P0DTC2
Amino Acid Sequence Arg319-Phe541, with N-terminal 8*His HHHHHHHHGGGGSDYKDDDDKRVQPTESIVRFPNITNLCPFDEVFNATRFASVYAWNRKRISNCVADYSVLYNLAPFFTFKCYGVSPTKLNDLCFTNVYADSFVIRGDEVRQIAPGQTGNIADYNYKLPDDFTGCVIAWNSNKLDSKVSGNYNYLYRLFRKSNLKPFERDISTEIYQAGNKPCNGVAGFNCYFPLRSYSFRPTYGVGHQPYRVVVLSFELLHAPATVCGPKKSTNLVKNKCVNF
Expression System HEK293
Molecular Weight 35-43kDa (Reducing)
Purity

>95% by SDS-PAGE

Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized Powder
Storage Buffer PBS, pH7.4
Reconstitution Reconstitute at 0.1-1 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 CoVs 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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SKU: 82549137443

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4.7 ★★★★★
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sec682
Omaha, US
★★★★★ 4
Wears out more quickly than standard versions
Color: bone, Size: 1 Count (Pack of 1), Color: bone, Size: 1 Count (Pack of 1)
While my puppy loved this bone and it was a good starter toy, it didn't last long. Our lab puppy loves to chew - especially when we stuffed the ends on this bone. After about 1.5 months of moderate use, she ended up chewing off and swallowing a small chunk of this bone, which she thankfully passed without issue. The material of this bone is intentionally softer than other kong toys, so it breaks down easier, and you will need to inspect it for wear more frequently. We have since upgraded to the large super chewer version for her, and she still loves it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 22, 2025
J
Verified Purchase
J Kowlessar
Whiting, US
★★★★★ 5
Teething proof!
Color: bone, Size: 1 Count (Pack of 1)
My 9 month old mini dachshund loves this bone. Holds up impeccably. Great price. Thank you Kong!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
L
Verified Purchase
LilFrog
Whiting, US
★★★★★ 5
Nice
Color: bone, Size: 1 Count (Pack of 1)
Nice
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
J
Verified Purchase
JDuchess
Grantham, US
★★★★★ 5
Great for Puppies
Color: bone, Size: 1 Count (Pack of 1)
Yes, my puppy loves it.
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Reviewed in the United States on April 8, 2026
M
Verified Purchase
M08_T🌸
Los Angeles, US
★★★★★ 3
Great for Small-Medium dog
Color: Pink, Size: Small (Pack of 1)
Treat hole very small could be larger, excellent for small or medium dog! Filled with peanut butter and froze them; keeps pup busy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026

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