SKU: 45577242723

Biotinylated CD52 Fc&Avi Tag Protein, Human

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Description

Biotinylated CD52 Fc&Avi Tag Protein, HumanProduct Specification Species Human Synonyms Epididymis Secretory Sperm Binding Protein Li 171mP, CD52 Antigen (CAMPATH 1 Antigen), Epididymal Secretory Protein E5, He5, CDW52 Antigen, HEL S 171mP, EDDM5, CDw52, Cambridge pathology 1 antigen, Human epididymis specific protein 5, CD52 Molecule Accession P31358 Amino Acid Sequence Gly25 Ser36, with C terminal human IgG1 Fc &Avi tag

Product Specification


Species Human
Synonyms Epididymis Secretory Sperm Binding Protein Li 171mP, CD52 Antigen (CAMPATH-1 Antigen), Epididymal Secretory Protein E5, He5, CDW52 Antigen, HEL-S-171mP, EDDM5, CDw52, Cambridge pathology 1 antigen, Human epididymis-specific protein 5, CD52 Molecule
Accession P31358
Amino Acid Sequence

Gly25-Ser36, with C-terminal human IgG1 Fc &Avi tag GQNDTSQTSSPSIEGRMDPKSSDKTHTCPPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGKGLNDIFEAQKIEWHE

Expression System HEK293
Molecular Weight

35-43kDa

Purity >95% by SDS-PAGE
Endotoxin <0.1EU/μg
Conjugation Biotin
Tag Avi Tag, Mouse Fc 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. Koyama K. et al. (2009) Functional aspects of CD52 in reproduction. J Reprod Immunol. 83(1-2): 56-59. 2. Morris, P.J. and N.K. Russell (2006) Transplantation 81:1361. 3. Redpath, S. et al. (1998) Immunology 93:595. 4. Hardiyanto, L. et al. (2012) J. Reprod. Immunol. 94:142.

Background

CD52, also known as CAMPATH-1 antigen, HE5, and gp20, is a cell surface glycoprotein that can be targeted to induce immune suppression by complement-mediated cell lysis. CD52 is a GPI-anchored protein present in lymphocytes and male reproductive tissues (mrt) including mature sperm and seminal plasma. It has been shown that mrt-CD52 is synthesized in epithelial cells of the epididymis and vas deferens, but not in the testis. The mrt-CD52 is transported to mature sperm during sperm transition in the male reproductive tract. Lymphocyte CD52 functions to stimulate suppressor T cell induction, while mrt-CD52 is associated with seminogelin and involved in clot formation and liquefaction of semen. It protects sperm against anti-sperm antibodies by binding to C1q and inhibiting complement activation.

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Exchange/Return Notes
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SKU: 45577242723

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4.3 ★★★★★
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Rukhsana mudassar
Los Angeles, US
★★★★★ 5
Amazing for evening skin tone
I’ve been using Palmer’s Skin Success Fade Milk and I’m very happy with the results. The lotion is lightweight, absorbs quickly, and doesn’t feel greasy at all. It keeps my skin well moisturized and over time I noticed my skin tone looking more even and brighter. I also like that it’s hydroquinone-free and contains niacinamide. The scent is mild and pleasant. Great quality product that delivers what it promises. I will definitely keep repurchasing!
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Reviewed in the United States on January 4, 2026
C
Verified Purchase
Colette Colthirst
Lexington, US
★★★★★ 4
Good for skin
Yes!!!! This actually works but the results are not permanent you have to continue using. But it does work for while in use. Would not recommend for the face though. Or should I say do not use often on face because it makes the face so oily. And not in a good way.
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Reviewed in the United States on July 11, 2025
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Verified Purchase
Lovely Kayla
New York, US
★★★★★ 5
It works!
This is the only lotion I’ve been using on my body. I use koji acid Turmeric soap, and I use this lotion after. I’ve had these scars for years, and I’m definitely noticing a difference. I’m sure it’ll take months to finally get clear skin, but it does work. The lather could be better, so you do have to use a lot. I wish the bottle was bigger, especially since I use it on my entire body. So I have to use a lot. A bottle only last for about a month if your using it on large parts of your body. The smell isn’t bad at all, and it’s very lightweight. It doesn’t feel super moisturizing, but it’s good to SOLEY treat dark marks, but not your average everyday moisturizing lotion. But you can see a slight difference on my legs, and other parts have been clear very well. This is a great product, for a great price. I highly recommend pairing with a soap that treats dark spots.
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Reviewed in the United States on November 2, 2025
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Verified Purchase
edwidge jeudi
Battle Creek, US
★★★★★ 5
Different package
I have been using this product for almost two years, and I absolutely love it, especially because I have very dry skin. It leaves my skin feeling extremely soft and well-moisturized even the next day. Over time, I also noticed that my dark spots started to fade. It is a great product, but it does take time to see results with dark spots. Yesterday, I ordered the same body lotion, but it arrived with a different packaging and formula. I was afraid it might affect the progress I’ve made with my skin, so I returned it and requested the original version I’ve been using.
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Reviewed in the United States on January 22, 2026
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Dulcimerbreezes
Belleville, US
★★★★★ 3
Scent is off putting.
Seems to be a nice lotion but for me, the aroma is off putting. That makes it hard for me to use on a consistent basis. It is moisturizing and not greasy. It absorbs well into my skin. I wish it were fragrance free. My spots are still with me but that’s my fault.
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Reviewed in the United States on March 11, 2026

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