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Recombinant Human T-cell surface glycoprotein CD4 (CD4), partial (Active)

Recombinant Human T-cell surface glycoprotein CD4 (CD4), partial (Active) — (Microbial infection) Primary receptor for human immunodeficiency virus-1 (HIV-1). Purity >95%.

SKU: BCACP-000454 Categories: ,
Product SKUBCACP-000454
Product DescriptionRecombinant Human T-cell surface glycoprotein CD4 (CD4) protein is expressed from Mammalian cell with C-terminal 10xHis-tagged. It contains 26-396aa. [Accession | P01730].
Uniprot No.P01730
Gene NamesCD4
PurityGreater than 95% as determined by SDS-PAGE.
Expression SystemMammalian cell
Expression Region26-396aa
SpeciesHomo sapiens (Human)
Tag InfoC-terminal 10xHis-tagged
Molecular weight42.7 kDa
ActivityMeasured by its binding ability in a functional ELISA.Immobilized Human MICB at 2 μg/mL can bind Anti-MICA/B recombinant antibody. The EC50 is 0.9180-1.062 ng/mL.
BufferLyophilized from a 0.2 μm filtered 20 mM Tris-HCl, 0.5 M NaCl, 6% Trehalose, pH 8.0
StorageStore at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Alternative NamesT-cell surface glycoprotein CD4; T-cell surface antigen T4/Leu-3; CD4

Function

(Microbial infection) Primary receptor for human immunodeficiency virus-1 (HIV-1). Down-regulated by HIV-1 Vpu.

Product Specifications

Recombinant Human T-cell surface glycoprotein CD4 (CD4), partial (Active) — (Microbial infection) Primary receptor for human immunodeficiency virus-1 (HIV-1). Purity >95%. Suitable for ELISA and Western Blot applications.

SDS-PAGE: Single band at expected molecular weight confirming purity.

ELISA: Suitable as coating antigen or detection standard.

Western Blot: Compatible with standard Western Blot protocols.

Protein Interaction: Validated for SPR (Surface Plasmon Resonance) and BLI (Bio-Layer Interferometry) studies.

Shipping: Shipped at ambient temperature. Lyophilized protein is stable during transit.

Storage: Store lyophilized protein at -20°C to -80°C. Reconstituted protein should be aliquoted and stored at -80°C. Avoid repeated freeze-thaw cycles.

Shelf Life: 12 months from date of receipt when stored as recommended.

Shipping Time: Orders placed before 2 PM EST ship same day. International orders typically deliver within 5-10 business days.

Protein Biology

Function

(Microbial infection) Primary receptor for human immunodeficiency virus-1 (HIV-1) (PubMed:12089508, PubMed:16331979, PubMed:2214026, PubMed:9641677). Down-regulated by HIV-1 Vpu (PubMed:17346169). Acts as a receptor for Human Herpes virus 7/HHV-7 (PubMed:7909607)

Subcellular Location

Cell membrane (Single-pass type I membrane protein)

Disease Association

Immunodeficiency 79 (IMD79) : An autosomal recessive disorder characterized by childhood onset of recurrent and recalcitrant skin warts due to uncontrolled viral infection with human papillomavirus (HPV). Some patients may also have recurrent respiratory infections. Laboratory studies show a complete absence of CD4+ T cells. [The disease is caused by variants affecting the gene represented in this entry]

Tissue Specificity

Highly expressed in T-helper cells. The presence of CD4 is a hallmark of T-helper cells which are specialized in the activation and growth of cytotoxic T-cells, regulation of B cells, or activation of phagocytes. CD4 is also present in other immune cells such as macrophages, dendritic cells or NK cells

Subunit

(Microbial infection) Interacts with Human Herpes virus 7 surface proteins

Gene: CD4  |  Organism: Homo sapiens  |  Synonyms: T-cell surface antigen T4/Leu-3
Key Publications

Frequently Asked Questions

How do I order or inquire about this product?

Fill out the Online Inquiry form with your required quantity and specifications. You can also email sales@biocrestsci.com. Our team typically responds within 4 business hours with a quote and availability confirmation.

What is the shipping and delivery time?

Orders placed before 2 PM EST ship the same day. Domestic (US) delivery typically takes 2-3 business days. International orders deliver within 5-10 business days. All products are shipped at ambient temperature with appropriate packaging to ensure stability.

How should I store this recombinant protein?

Lyophilized proteins should be stored at -20°C to -80°C upon receipt. After reconstitution, aliquot and store at -80°C. Avoid repeated freeze-thaw cycles. Shelf life is 12 months from date of receipt when stored as recommended.

What quality controls are performed on your products?

Each product undergoes SDS-PAGE purity analysis (typically >85-95%), endotoxin testing, and bioactivity validation. Products are validated for ELISA, Western Blot, and SPR/BLI applications as specified on this product page. A Certificate of Analysis (CoA) is available upon request.

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