SKU: 36828311390

CD3E&CD3D Heterodimer Llama Fc&Llama Fc Tag Protein, Human

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Description

CD3E&CD3D Heterodimer Llama Fc&Llama Fc Tag Protein, HumanProduct Specification Species Human Synonyms CD3 epsilon&CD3 delta, CD3E & CD3D, CD3 delta & CD3 epsilon Accession P07766 1(CD3E)P04234 1(CD3D) Amino Acid Sequence CD3E: Asp23 Asp126 with Llama IgG2b Fc tag at the C Terminus CD3D: Phe22 Ala105 with Llama IgG2b Fc tag at the C Terminus Expression System HEK293 Molecular Weight 43 55kDa (Reducing) Purity 95% by SDS PAGE & SEC HPLC Conjugation Unconjugated Tag Llama IgG2b Fc Tag Physical Appearance

Product Specification


Species Human
Synonyms CD3 epsilon&CD3 delta, CD3E & CD3D, CD3 delta & CD3 epsilon
Accession P07766-1(CD3E)、P04234-1(CD3D)
Amino Acid Sequence

CD3E: Asp23-Asp126 with Llama IgG2b Fc tag at the C-Terminus
CD3D: Phe22-Ala105 with Llama IgG2b Fc tag at the C-Terminus

Expression System HEK293
Molecular Weight

43-55kDa (Reducing)

Purity >95% by SDS-PAGE & SEC-HPLC
Conjugation Unconjugated
Tag Llama IgG2b Fc Tag
Physical Appearance Lyophilized powder
Storage Buffer

PBS, PH7.4, 5% trehalose

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. Tuning TCR complex recruitment to the T cell antigen coupler (TAC) enhances TAC-T cell function. Sci Rep. 2025 Feb 25;15(1):6769.
2. Gedeon P C , Schaller T H , Chitneni S K , et al. A rationally designed fully human EGFRvIII:CD3-targeted bispecific antibody redirects human T cells to treat patient-derived intracerebral malignant glioma.[J]. Clinical Cancer Research, 2018:clincanres.0126.2017.

Background

T-cell surface glycoprotein CD3 delta & CD3 epsilon chain, also known as CD3D & CD3E or CD3D&CD3E respectively, are single-pass type I membrane proteins. CD3D, together with CD3- epsilon(CD3E) , CD3-gamma and CD3-zeta, and the T-cell receptor alpha/beta and gamma/delta heterodimers, forms the T cell receptor-CD3 complex. T cell receptor-CD3 complex plays an important role in coupling antigen recognition to several intracellular signal-transduction pathways.

Shipping Notes
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Exchange/Return Notes
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SKU: 36828311390

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Product Reviews
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Verified Purchase
Ruby L.
Los Angeles, US
★★★★★ 5
Unique watch for sure
Color: Silver, Size: 15MM
So good, so cute. The face is pretty small but what do you want from a ring watch? I would say it is not for bigger fingers. I wear a size 7.5 and it fits perfectly. It does have an elastic band but when I tried it on a larger finger, it definitely pinched. I am of fan of different watches so this fits the bill. It's unique and an eye-catcher. Well done Fossil.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 7, 2025
A
Verified Purchase
Amazon Customer
Dallas, US
★★★★★ 5
Pretty. Tiny. Hopefully has good battery life. UPDATE: The silver one was defective.
Color: Gold Raquel, Size: 14MM, Color: Gold Raquel, Size: 14MM
I bought both the gold and the silver ones. I have a collection of ring watches but most of them are sets you can buy for cheap. These are my first made by a well known watch company. They look big on picture but they are tiny. I bought it so when my smartwatch dies I have one on my ring to tell the time. I don't like going on my phone to check the time just to avoid distractions. I hope the battery lasts long. Updated review: I started using the gold one and it works great! The silver one wasn't working so I processed a return for it. However when they shipped the replacement, there was nothing inside the tin can fossil case. I called Amazon and they refunded me for the silver one. The product works great. I probably got a defective one. My fear is maybe someone took the ring before packing it for replacement. That's just wrong. I'm going to get the silver one from Macy's instead.
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Reviewed in the United States on October 13, 2024
S
Verified Purchase
Ss in calif
Whiting, US
★★★★★ 5
Worth the money
Color: Gold Glitz, Size: 15MM
Beautiful watch ring. Looks more expensive than what the price. Very nice.
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Reviewed in the United States on March 12, 2026
A
Verified Purchase
Amazon Customer
Los Angeles, US
★★★★★ 1
Cheaply made
Color: Gold Glitz, Size: 15MM
I really love the concept and honestly it’s super cute BUT the diamond around the face of the watch fell off within the first wear:/ so unfortunate because it has so much potential.
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Reviewed in the United States on September 15, 2025
T
Verified Purchase
T. Hudson
Dallas, US
★★★★★ 3
Beautiful watch, great packaging, but didn’t work.
Color: Silver, Size: 15MM
I love my ring watch so much that this is my second one (I washed my first one 😩). I ordered the ring on Wednesday and I got it Friday. I was so happy to get it, great packaging and fast delivery imagine how hurt I was when it didn’t work. I am gonna try to get a new battery and I pray that works but with the price being 80 plus dollars this should have never been a problem.
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Reviewed in the United States on April 26, 2026

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