SKU: 10527946783

Biotinylated B7-H4 Avi&His Tag Protein, Human

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Description

Biotinylated B7-H4 Avi&His Tag Protein, HumanProduct Specification Species Human Synonyms B7 H4, VTCN1, B7S1, B7h. 5 Accession Q7Z7D3 1 Amino Acid Sequence Phe29 Ala258, with C terminal His and Avitag Expression System HEK293 Molecular Weight 43 60kDa (Reducing) Purity 95% by SDS PAGE Endotoxin <1EU g Tag Avi 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

Product Specification


Species Human
Synonyms B7-H4, VTCN1, B7S1, B7h.5
Accession Q7Z7D3-1
Amino Acid Sequence

Phe29-Ala258, with C-terminal His and Avitag

Expression System HEK293
Molecular Weight

43-60kDa (Reducing)

Purity >95% by SDS-PAGE
Endotoxin <1EU/μg
Tag Avi 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, 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

1. Yuping Sun, Yunshan Wang, Jianqiang Zhao, Ming Gu, Ricardo Giscombe, Ann Kari Lefvert a, Xiongbiao Wang: B7-H3 and B7-H4 expression in non-small-cell lung cancer, Lung Cancer Volume 53, Issue 2, August 2006, Pages 143-151.

Background

V-set domain-containing T-cell activation inhibitor 1 (VTCN1) is also known as Immune costimulatory protein B7-H4, Protein B7S1, T-cell costimulatory molecule B7x, B7H4, which belongs to the immunoglobulin superfamily and BTN/MOG family. VTCN1 contains two Ig-like V-type (immunoglobulin-like) domains. The expression of VTCN1 is up-regulated by IL6 and IL10 and is inhibited by GM-CSF and IL4 on antigen-presenting cells (APCs). VTCN1/B7-H4 negatively regulates T-cell-mediated immune response by inhibiting T-cell activation, proliferation, cytokine production and development of cytotoxicity. VTCN1 involved in promoting epithelial cell transformation.

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SKU: 10527946783

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Sarah Rothlisberger
Belleville, US
★★★★★ 3
They do work but they taste terrible!
Size: 60 Count (Pack of 1), Style: Melatonin 5mg
I got these for my special needs son after his doctor recommend trying melatonin to help with some sleep disturbances. They definitely help him go to bed calmly and even stay in bed through the night but I have to bribe him to get him to take them because the taste is so bad!
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Reviewed in the United States on January 10, 2021
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Julieth Ardila
Massapequa, US
★★★★★ 5
Amazing
Size: 60 Count (Pack of 1), Style: Melatonin 5mg
Second time that I bought this and for sure will buy it in the future.
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Reviewed in the United States on October 26, 2025
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B. Stevens
Cuba, US
★★★★★ 5
Excellent Product!
Added this to my evening Magnesium Glycinate about 2 or 3 weeks ago. My difficulty getting a full nights sleep gradually started to improve. I am now averaging 7 or more hours straight, up from 2.5 - 3hrs. Waking feeling refreshed and more alert, not tired and groggy now. No more mid morning slump. Just keeps getting better... it's not instant but, continues to improve. These improvements alone are well worth the cost. Also, seems to have added an extra kick to the other reason I take Magnesium... my hip pain and lack of flexibility has also improved. Almost no pain now and flexibility has gone from zero to at least 50% now. I can bend at the hip now and look forward to being able to put on socks, tie shoe laces, scrub feet and trim toenails without assistance! I have always been physically active until the years of unconsciously favoring my left leg after breaking my right leg in several places ...twice when I was younger began to take a toll on my flexibility. Starting gradually in my mid sixties until now at 68, the list of immobility problems had become very annoying. So, this improvement is is most exciting! My thanks to Teraputics Pure Life for making an excellent product!
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Reviewed in the United States on September 16, 2020
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Debra D.
Charlottesville, US
★★★★★ 5
Great Product
I purchased "Magnesium L Threonate, Magtein™, Brain Supplement for Memory, Focus, Sleep and Cognitive Support". I added this to my evening regimen and my difficulty getting a full nights sleep gradually started to improve. I am waking up feeling refreshed now. No more mid morning slump. These improvements alone are well worth the cost. This improvement is is most exciting! My thanks to Teraputics Pure Life for making an excellent product!
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Reviewed in the United States on September 17, 2025
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Kevin McDermott
Louisville, US
★★★★★ 5
It Put Me On An Even Plane.
After 2 months of using this supplement my sleep has improved immensely. I wake up refreshed and recharged Jitters have subsided. And bathroom trips are on a schedule.
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Reviewed in the United States on May 10, 2026

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