SKU: 3923750355

BTN1A1/Butyrophilin His Tag Protein, Human

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Description

BTN1A1/Butyrophilin His Tag Protein, HumanProduct Specification Species Human Synonyms BTN1A1,Butyrophilin,BTN Accession Q13410 1 Amino Acid Sequence Ala27 Arg242 with His Tag at C Terminus Expression System HEK293 Molecular Weight 30 37kDa(Reducing) Purity > 95% as determined by SDS PAGE & SEC HPLC. Endotoxin <0. 1EU g Conjugation Unconjugated Tag His Tag Storage Buffer PBS PH7. 4 5% trehalose Stability & Storage 12 months from date of receipt, lyophilized powder stored at 20 to 80. 3

Product Specification


Species Human
Synonyms BTN1A1,Butyrophilin,BTN
Accession Q13410-1
Amino Acid Sequence

Ala27-Arg242 with His Tag at C-Terminus

Expression System HEK293
Molecular Weight 30-37kDa(Reducing)
Purity > 95% as determined by SDS-PAGE & SEC-HPLC.
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag His Tag
Storage Buffer

PBS PH7.4 5% trehalose

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.

Reference

Chu X, Han Z, Li B, Yang T. Plasma proteins and different onset subtype of COPD: Proteome-wide Mendelian randomization study and co-localization analyses. Medicine (Baltimore). 2025 May 9;104(19):e42409.

Background

BTN1A1, also known as BTN, is a member of the immunoglobulin superfamily and the major milk fat droplet-associated protein. It may function as a cell surface receptor. The human butyrophilin gene, located in the MHC class I region on chromosome 6p, likely originated through exon shuffling between two ancestral gene families. BTN1A1 regulates milk lipid content and droplet size and inhibits proliferation of anti-CD3-activated CD4 and CD8 T-cells, as well as T-cell metabolism and secretion of IL2 and IFNG.

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SKU: 3923750355

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Yuliia Bezhenar
Fort Morgan, US
★★★★★ 5
Perfect balance of softness and durability for everyday use.
Style: 400 Count
Great everyday napkins – good value for the price I’ve been buying Vanity Fair Everyday napkins for a while now, and they’re perfect for daily use. They’re soft enough to feel comfortable but still strong and absorbent. They don’t fall apart easily, even with messy meals or spills. The value pack is especially convenient and lasts a long time, which makes it a great option for families or regular use. They’re not overly thick like premium dinner napkins, but for everyday meals, lunches, or kids’ snacks, they work perfectly. Overall, a reliable, affordable choice that I keep reordering.
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Reviewed in the United States on February 27, 2026
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iCANunn
Massapequa, US
★★★★★ 5
Multi use…
Style: 200 Count, Style: 200 Count
I love these Vanity Fair Napkins. They fit perfectly in my counter dispenser. They are a nice, attractive napkin whether for breakfast, lunch or dinner. And they are at a good price point. But truth be told, they come in handy when you have a cold. Grab a handful and take along with you for blowing your nose. They are stronger than bath tissue, yet softer than a paper towel and strong enough for all your congestion.
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Reviewed in the United States on May 13, 2026
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Samantha
West Palm Beach, US
★★★★★ 5
Reliable and High-Quality for Daily Use
Style: 400 Count, Style: 400 Count
These napkins have a great weight to them. They are surprisingly thick, which adds to their sturdiness—they don't fall apart the moment they get slightly damp like cheaper brands. The size is perfect for everyday meals. Because they are soft yet strong, they are a breeze for ease of use, whether you're cleaning up a quick spill or just setting the table. The bright white color looks clean and classic, making them versatile enough for both casual lunches and nicer dinners. With the 400-count value pack, you really get excellent value for money. It’s much more convenient to buy in bulk so you aren't constantly running back to the store.
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Reviewed in the United States on March 17, 2026
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Mariany
Dallas, US
★★★★★ 5
Great Quality and Value for Everyday Use!
Style: 400 Count, Style: 400 Count
I’m really happy with these napkins! The Vanity Fair Everyday Napkins 2‑Ply (400 Count) are soft, durable, and perfect for everyday meals. They are strong enough to handle spills without tearing easily, which makes them great for family dinners and quick clean-ups. I also love the value pack — having 400 napkins means they last a long time and I don’t have to keep buying more every week. The quality is much better than many basic napkins, but still very affordable. Overall, these are reliable, practical, and a great addition to any kitchen. I would definitely purchase them again!
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Reviewed in the United States on March 14, 2026
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Vivian Rivas
Natrona Heights, US
★★★★★ 4
Good quantity and quality suitable for daily use
Style: 400 Count, Style: 400 Count
I bought the 400-unit Vanity Fair Everyday napkin pack and it seemed like a practical option for daily use at home. The package comes well sealed and the napkins have a standard size that works well for both fast meals and family dinners. They are resistant enough to clean small spills and do not break easily when used. They also have a soft texture to the touch, which makes them comfortable for daily use. I like that the package is large, since it yields a lot and avoids having to buy so often. In general, I think it is a good option if you are looking for a functional napkin, with a good presentation and a convenient amount for the home.
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Reviewed in the United States on February 16, 2026

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