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

• Product Name Alternative:

  T-cell surface glycoprotein CD4; T-cell surface antigen T4/Leu-3; CD4

• Abbreviation:

  Recombinant Human CD4 protein, partial (Active)

• Gene Name:

  CD4

• UniProt:

  P01730

• Expression Region:

  26-396aa

• Organism:

  Homo sapiens (Human)

• Target Sequence:

  KKVVLGKKGDTVELTCTASQKKSIQFHWKNSNQIKILGNQGSFLTKGPSKLNDRADSRRSLWDQGNFPLIIKNLKIEDSDTYICEVEDQKEEVQLLVFGLTANSDTHLLQGQSLTLTLESPPGSSPSVQCRSPRGKNIQGGKTLSVSQLELQDSGTWTCTVLQNQKKVEFKIDIVVLAFQKASSIVYKKEGEQVEFSFPLAFTVEKLTGSGELWWQAERASSSKSWITFDLKNKEVSVKRVTQDPKLQMGKKLPLHLTLPQALPQYAGSGNLTLALEAKTGKLHQEVNLVVMRATQLQKNLTCEVWGPTSPKLMLSLKLENKEAKVSKREKAVWVLNPEAGMWQCLLSDSGQVLLESNIKVLPTWSTPVQP

• Tag:

  C-terminal 10xHis-tagged

• Type:

  Active Protein & In Stock Protein

• Source:

  Mammalian cell

• Field of Research:

  Immunology

• Relevance:

  Integral membrane glycoprotein that plays an essential role in the immune response and serves multiple functions in responses against both external and internal offenses. In T-cells, functions primarily as a coreceptor for MHC class II molecule:peptide complex. The antigens presented by class II peptides are derived from extracellular proteins while class I peptides are derived from cytosolic proteins. Interacts simultaneously with the T-cell receptor (TCR) and the MHC class II presented by antigen presenting cells (APCs) . In turn, recruits the Src kinase LCK to the vicinity of the TCR-CD3 complex. LCK then initiates different intracellular signaling pathways by phosphorylating various substrates ultimately leading to lymphokine production, motility, adhesion and activation of T-helper cells. In other cells such as macrophages or NK cells, plays a role in differentiation/activation, cytokine expression and cell migration in a TCR/LCK-independent pathway. Participates in the development of T-helper cells in the thymus and triggers the differentiation of monocytes into functional mature macrophages.

• Endotoxin:

  Less than 1.0 EU/μg as determined by LAL method.

• Purity:

  Greater than 95% as determined by SDS-PAGE.

• Activity:

  Yes

• Bioactivity:

  Measured by its binding ability in a functional ELISA.Immobilized Human CD4 at 2 μg/mL can bind Anti-CD4 recombinant antibody (CSB-RA004935MA3HU) .The EC50 is 4.219-4.754 ng/mL.

• Form:

  Lyophilized powder

• Buffer:

  Lyophilized from a 0.2 μm sterile filtered PBS, 6% Trehalose, pH 7.4

• Reconstitution:

  We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.

• Molecular Weight:

  42.7 kDa

• References & Citations:

  Glucocorticoids cause rapid dissociation of a T-cell-receptor-associated protein complex containing LCK and FYN. Loewenberg M., Verhaar A.P., Bilderbeek J., Marle J.V., Buttgereit F., Peppelenbosch M.P., van Deventer S.J., Hommes D.W. EMBO Rep. 7:1023-1029 (2006)

• Storage Conditions:

  The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.

• Protein Length:

  Partial