SKU: 89716795297

H1N1 HA (A/Puerto Rico/8/1934) His Tag

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Description

H1N1 HA (A/Puerto Rico/8/1934) His TagProduct Specification Species Influenza Antigen HA Hemagglutinin Synonyms HA, Hemagglutinin Accession P03452 Amino Acid Sequence Asp18 Gln528, with C terminal 10*His

Product Specification


Species Influenza
Antigen HA/Hemagglutinin
Synonyms HA, Hemagglutinin
Accession P03452
Amino Acid Sequence

Asp18-Gln528, with C-terminal 10*His DTICIGYHANNSTDTVDTVLEKNVTVTHSVNLLEDSHNGKLCRLKGIAPLQLGKCNIAGWLLGNPECDPLLPVRSWSYIVETPNSENGICYPGDFIDYEELREQLSSVSSFERFEIFPKESSWPNHNTNGVTAACSHEGKSSFYRNLLWLTEKEGSYPKLKNSYVNKKGKEVLVLWGIHHPPNSKEQQNLYQNENAYVSVVTSNYNRRFTPEIAERPKVRDQAGRMNYYWTLLKPGDTIIFEANGNLIAPMYAFALSRGFGSGIITSNASMHECNTKCQTPLGAINSSLPYQNIHPVTIGECPKYVRSAKLRMVTGLRNIPSIQSRGLFGAIAGFIEGGWTGMIDGWYGYHHQNEQGSGYAADQKSTQNAINGITNKVNTVIEKMNIQFTAVGKEFNKLEKRMENLNKKVDDGFLDIWTYNAELLVLLENERTLDFHDSNVKNLYEKVKSQLKNNAKEIGNGCFEFYHKCDNECMESVRNGTYDYPKYSEESKLNREKVDGVKLESMGIYQGGGSGGGSHHHHHHHHHH

Expression System HEK293
Molecular Weight 72-90kDa
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.

Reference

1、Zhang S. et al. (2015) Proinflammatory effects of the hemagglutinin protein of the avian influenza A (H7N9) virus and microRNA‑mediated homeostasis response in THP‑1 cells. Molecular medicine reports. 12(4): 6241-6246.

Background

Neuraminidase (NA) and hemagglutinin (HA) are major membrane glycoproteins found on the surface of influenza virus. Hemagglutinin binds to the sialic acid-containing receptors on the surface of host cells during initial infection and at the end of an infectious cycle. Hemagglutinin also plays a major role in the determination of host range restriction and virulence. As a class I viral fusion protein, hemagglutinin is responsible for penetration of the virus into the cell cytoplasm by mediating the fusion of the membrane of the endocytosed virus particle with the endosomal membrane. Binds to sialic acid-containing receptors on the cell surface, bringing about the attachment of the virus particle to the cell. This attachment induces virion internalization either through clathrin-dependent endocytosis or through clathrin- and caveolin-independent pathway. Plays a major role in the determination of host range restriction and virulence. Class I viral fusion protein. Responsible for penetration of the virus into the cell cytoplasm by mediating the fusion of the membrane of the endocytosed virus particle with the endosomal membrane. Low pH in endosomes induces an irreversible conformational change in HA2, releasing the fusion hydrophobic peptide. Several trimers are required to form a competent fusion pore.

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SKU: 89716795297

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4.2 ★★★★★
Based on 16 reviews
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L
Verified Purchase
le’MamaAmazon Customer
Birmingham, US
★★★★★ 5
Received a perfect bunch!
Some things are truly hit or miss with Amazon Fresh grocery deliveries! I Some things are truly hit or miss with Amazon Fresh grocery deliveries! I hadn’t ordered bananas for about a month due to what I’d received in the past. Personal preference? I want those lovely pale green ends! Please!!! I don’t like the flavor or even the change in scent that happens when bananas turn darker yellow, freckle - or worse? Turn brown. Yuck. Each previous delivery, I hadn’t been able to eat more than 3 out of each bunch because of the already yellowed fruit received. I even tried the currently trendy recommendation of wrapping the individual stem ends in plastic wrap to help slow the ripening process. Was very pleased to receive a bunch of 6 small sized bananas, all delicately green and completely beautiful! Beautiful job by the thoughtful delivery person as well, who didn’t just leave the bags in the rain on the (only 2!) steps, but made sure they were under the protection of the porch and not blocking my door. Some items I never order anymore (beloved snap peas and garnet potatoes are two examples) after receiving spoiled items - more than once. Apparently notifying Amazon of our understandable disappointment, not to mention the waste! can sometimes improve the quality of items delivered. I do very much appreciate the Amazon Fresh delivery service in my (rapidly approaching) old age. As I rarely go out anymore, this has Some things are truly hit or miss with Amazon Fresh grocery deliveries! I hadn’t ordered bananas for about a month due to what I’d received in the past. Personal preference? I want those lovely pale green ends! Please!!! I don’t like the flavor or even the change in scent that happens when bananas turn darker yellow, freckle - or worse? Turn brown. Yuck. Each previous delivery, I hadn’t been able to eat more than 3 out of each bunch because of the already yellowed fruit received. I even tried the currently trendy recommendation of wrapping the individual stem ends in plastic wrap to help slow the ripening process. Was very pleased to receive a bunch of 6 small sized bananas, all delicately green and completely beautiful! Beautiful job by the thoughtful delivery person as well, who didn’t just leave the bags in the rain on the (only 2!) steps, but made sure they were under the protection of the porch and not blocking my door. Some items I never order anymore (beloved snap peas and garnet potatoes are two examples) after receiving spoiled items - more than once. Apparently notifying Amazon of our understandable disappointment, not to mention the waste! can sometimes improve the quality of items delivered. I do very much appreciate the Amazon Fresh delivery service in my (rapidly approaching) old age. As I rarely go out anymore, this has been invaluable for me. Thank you so very much…
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Reviewed in the United States on February 23, 2026
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Verified Purchase
Judith
Lake Worth, US
★★★★★ 5
Nice size bananas. Not bruised or spoiled. Good bananas!
Really beautifully picked for ripeness and last a few days once you get them home.
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Reviewed in the United States on May 27, 2026
D
Verified Purchase
Daniel
Omaha, US
★★★★★ 5
Great-Tasting Protein Shake With Fresh Product Dates and Excellent Nutrition
Flavor Name: Chocolate, Size: 11 Fl Oz (Pack of 12)
I picked up this Premier Protein chocolate shake 12-pack mainly as a convenient daily protein option, and overall the quality has been excellent. The chocolate flavor tastes very good without being overly sweet, and the texture is smooth compared to many protein drinks that can feel chalky or heavy. The 30 grams of protein also make it very practical for quick meals, post-workout use, or busy days when preparing food is not convenient. One thing I appreciated is that the product arrived with fresh expiration dates, which is important when buying protein drinks in bulk. The packaging was also in good condition, and the bottles were easy to store and carry. The nutritional balance is another strong point, especially with the added vitamins and minerals included without extra added sugar. Compared to many other ready-to-drink protein shakes, this one feels lighter while still being filling and satisfying. In terms of value for the money, it feels like a very good purchase considering the quality, nutrition content, convenience, and freshness. Overall, a high-quality protein shake with excellent taste, fresh product dates, strong nutritional value, and very good everyday convenience. It can also be mixed with other flavors.
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Reviewed in the United States on May 28, 2026
H
Verified Purchase
Harley
Cuba, US
★★★★★ 5
Delicious, Nutritious, and Full of Proteins and 24 Vitamins & Minerals !!
Flavor Name: Chocolate, Size: 11 Fl Oz (Pack of 12)
The Premier Protein Shakes are offered in Chocolate and several other flavors, all very good and tasty in my humble opinion ! If you are looking for a drink with a lot of protein - 30 Grams Protein and numerous other vitamins and minerals all with NO ADDED SUGAR, try these drinks. You will be glad you did... it is a great way to begin your day or even drink at mid-day for a healthy pick-me-up. They are so easy to use in this box style container and also come in bottles. The chocolate is so delicious, try it, then try all the other flavors, like Cafe Latte, Caramel, Vanilla, Strawberry. You will be delighted with getting your nutrition in a really chocolatey drink.
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Reviewed in the United States on May 3, 2026
L
Verified Purchase
LARA8
Charlottesville, US
★★★★★ 5
What's small and powerful and full of protein?
Flavor Name: Chocolate, Size: 11 Fl Oz (Pack of 12)
This is better than expected - filling - chocolate-milkish taste - lots of protein - only o few calories - good for times you want to eat less but still have energy - It is a good product to have on hand - it is filling - this is not exciting but rather useful in a busy life -when you don't want to cook, before a medical procedure or any situation where less is more. The taste is good enough - best ice cold - I would recommend this product.
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Reviewed in the United States on May 15, 2026

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