Recombinant Human CD4 protein (Tagged) (ab270583)
Key features and details
- Expression system: Mammalian
- Tags: Fc tag C-Terminus
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Product name
Recombinant Human CD4 protein (Tagged)
See all CD4 proteins and peptides -
Expression system
Mammalian -
Accession
-
Protein length
Protein fragment -
Animal free
No -
Nature
Recombinant -
-
Species
Human -
Sequence
KKVVLGKKGDTVELTCTASQKKSIQFHWKNSNQIKILGNQGSFLTKGPSK LNDRADSRRSLWDQGNFPLIIKNLKIEDSDTYICEVEDQKEEVQLLVFGL TANSDTHLLQGQSLTLTLESPPGSSPSVQCRSPRGKNIQGGKTLSVSQLE LQDSGTWTCTVLQNQKKVEFKIDIVVLAFQKASSIVYKKEGEQVEFSFPL AFTVEKLTGSGELWWQAERASSSKSWITFDLKNKEVSVKRVTQDPKLQMG KKLPLHLTLPQALPQYAGSGNLTLALEAKTGKLHQEVNLVVMRATQLQKN LTCEVWGPTSPKLMLSLKLENKEAKVSKREKAVWVLNPEAGMWQCLLSDS GQVLLESNIKVLPTW -
Predicted molecular weight
51 kDa -
Amino acids
26 to 390 -
Tags
Fc tag C-Terminus
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Preparation and Storage
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Alternative names
- CD 4
- CD4
- CD4 (L3T4)
see all -
Function
Accessory protein for MHC class-II antigen/T-cell receptor interaction. May regulate T-cell activation. Induces the aggregation of lipid rafts. -
Sequence similarities
Contains 3 Ig-like C2-type (immunoglobulin-like) domains.
Contains 1 Ig-like V-type (immunoglobulin-like) domain. -
Post-translational
modificationsPalmitoylation and association with LCK contribute to the enrichment of CD4 in lipid rafts. -
Cellular localization
Cell membrane. Localizes to lipid rafts. Removed from plasma membrane by HIV-1 Nef protein that increases clathrin-dependent endocytosis of this antigen to target it to lysosomal degradation. Cell surface expression is also down-modulated by HIV-1 Envelope polyprotein gp160 that interacts with, and sequesters CD4 in the endoplasmic reticulum. - Information by UniProt