CD4, Avi-Tag, His-Tag, HiP™ Recombinant

Catalog #
101862
$320 *
Size: 100 µg
Qty
*US Pricing only. For international pricing, please contact your local distributor.
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Description

Human recombinant CD4, encompassing amino acids 26-396 which correspond to the extracellular domain. This construct contains a C-terminal Avi-Tag™ followed by an His-Tag (6xHis). This protein was affinity purified. HiP™ indicates a high purity protein (≥90% pure) and less than 10% aggregation as measured by gel filtration.

Synonyms
T-cell surface antigen T4/Leu-3, T-cell surface glycoprotein CD4, CD4
Product Info
Storage and Usage
Citations
Species
Human
Construct
CD4 (26-396-Avi-His)
Host Species/Expression System
HEK293
Purity

≥90%

Format

Aqueous buffer solution.

Formulation

8 mM phosphate, pH 7.4, 110 mM NaCl, 2.2 mM KCl, and 20% glycerol

MW
45 kDa + glycans
Amino Acids
26-396
Glycosylation
This protein runs at a higher MW by SDS-PAGE due to glycosylation.
Aggregation
<10%
Genbank #
NM_000616.5
UniProt #
P01730
Tag(s)
C-terminal Avi-Tag™, His-Tag
Background

CD4 (cluster of differentiation 4) is part of the immunoglobulin superfamily, and is found in T-helper cells, monocytes, macrophages and dendritic cells. It is a co-receptor in the TCR (T-cell receptor), binding to MHC (major histocompatibility complex) class II molecules. CD4 binds to the tyrosine kinase Lck (lymphocyte-specific protein tyrosine kinase), which can phosphorylate the ITAM (immunoreceptor tyrosine activation motifs) domain of the CD3, activating CD3-related signaling. CD4 is a typical marker of T helper cells, and it has been linked to cancer, autoimmune diseases such as vitiligo and type I diabetes. In addition, HIV-1 uses CD4 as a cellular receptor to trigger viral envelope protein conformational changes that allow cell infection. Further studies into CD4 and potential strategies around it may benefit patients and CD4 related diseases.