SKU: 80440741947

SARS-CoV-2 RBD, His Tag

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Ships within 48 hours · Estimated delivery Aug 27 - Sep 1

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Description

SARS-CoV-2 RBD, His TagProduct Specification Species SARS CoV 2 Accession P0DTC2 Amino Acid Sequence RVQPTESIVRFPNITNLCPFGEVFNATRFASVYAWNRKRISNCVADYSVLYNSASFSTFKCY GVSPTKLNDLCFTNVYADSFVIRGDEVRQIAPGQTGKIADYNYKLPDDFTGCVIAWNSNN LDSKVGGNYNYLYRLFRKSNLKPFERDISTEIYQAGSTPCNGVEGFNCYFPLQSYGFQPT NGVGYQPYRVVVLSFELLHAPATVCGPKKSTNLVKNKGGGGSHHHHHHHHHH. Expression System HEK293 Molecular Weight 26. 3 kDa (reducing) Purity 95% by SDS PAGE Endotoxin <1EU g Conjugation Unconjugated Physical

Product Specification


Species SARS-CoV-2
Accession P0DTC2
Amino Acid Sequence

RVQPTESIVRFPNITNLCPFGEVFNATRFASVYAWNRKRISNCVADYSVLYNSASFSTFKCY GVSPTKLNDLCFTNVYADSFVIRGDEVRQIAPGQTGKIADYNYKLPDDFTGCVIAWNSNN LDSKVGGNYNYLYRLFRKSNLKPFERDISTEIYQAGSTPCNGVEGFNCYFPLQSYGFQPT NGVGYQPYRVVVLSFELLHAPATVCGPKKSTNLVKNKGGGGSHHHHHHHHHH.

Expression System HEK293
Molecular Weight 26.3 kDa (reducing)
Purity >95% by SDS-PAGE
Endotoxin <1EU/μg
Conjugation Unconjugated
Physical Appearance Lyophilized Powder
Storage Buffer 0.2M PBS, pH7.4
Reconstitution Reconstitute at less than 1 mg/mL according to the size in deionized water after rapid centrifugation.
Stability & Storage

Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃ Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.

Background

Sars-cov-2 (2019-NCOV) infects human respiratory epithelial cells through binding to human ACE2 receptors. Spike protein is a large type I transmembrane protein containing two subunits S1 and S2.S1 mainly contains a receptor binding domain (RBD), which is responsible for recognizing cell surface receptors. S2 contains the basic elements required for membrane fusion. S protein plays a key role in inducing neutralizing antibody and T cell responses as well as protective immunity. This product is the recombinant human SARS-CoV-2 RBD protein expressed from human 293 cells (HEK293).

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SKU: 80440741947

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4.2 ★★★★★
Based on 12 reviews
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Verified Purchase
TC
Draper, US
★★★★★ 1
A waste
Color: White/Silver-Tone/Digital
If I could I would give it zero stars. It was running when I received it so who knows how long the battery has left. No instructions were included. The setup is impossible unless you’re into computerized “smart” crap. I looked up how to do that and it’s way too involved for a watch to tell me what the time is. I don’t want a personal dictator, I just wanted a watch I could wear and know what time it is. Too much hassle to return. It’s going in the trash. Total waste of time energy and money. Zero stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 12, 2025
K
Verified Purchase
Kristi J Williams
Louisville, US
★★★★★ 4
Favorite Watch
Color: Black/Silver-Tone/Digital, Color: Black/Silver-Tone/Digital
I have been using this same kind of watch for 10+ years. I like the belt like strap and the small size. I also appreciate how it has a light on it, the date, and the stop watch. I haven’t had any issues with the battery. These watches have held up well for me although I try to avoid getting them wet. The buttons are hard to press when you first get them but get a little easier to press over time. I still have issues remembering how to change the time and typically have to look up how. The silver parts on the front do wear out over time and turn copper colored. I wore one of these watches for around 5 years before buying a new one when the band which holds the excess space from the band broke. Attached is a picture of the watch that I wore for at least 5 years and a brand new one that I bought.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
S
Verified Purchase
S. C. Lehman
Fort Morgan, US
★★★★★ 5
Perfect for School
Color: Blue/Silver-Tone/Digital
Purchased as a for a middle schooler who isn’t allowed any electronics at school during school hours. Helps keep her on task without breaking the smart device policies. Perfect “old school” way to work.
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Reviewed in the United States on March 18, 2026
P
Verified Purchase
Placeholder
Draper, US
★★★★★ 3
hard to read display, no manual included.
Color: Black/Black/Digital
I haven't decided yet whether or not I will keep the watch. Problem is there is no instruction manual attached and you cannot find one online. However if you call Timex support they will email you the manual if you give them the model number which is included in Amazon's product description. However even with the manual watch is very hard to set. It lacks some functions normally Timex has like time can only be set up there is no down button. And most importantly display is minuscule. So it is really hard to read to set. Watch is a ladies watch. It is small and I like it a lot. But buttons are hard to operate and it is hard to read.
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Reviewed in the United States on April 17, 2025
A
Verified Purchase
Amazon Customer
Omaha, US
★★★★★ 5
Great item
Color: Black/Silver-Tone/Digital
Great item
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Reviewed in the United States on March 5, 2026

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