Bulk anti-Human CD4 antibody (OKT-4) [ICH1166]

Ultra-Low Endotoxin, anti-human

This monoclonal antibody was purified using multi-step affinity chromatography methods such as Protein A or G depending on the species and isotype.

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. - (Microbial infection) Primary receptor for human immunodeficiency virus-1 (HIV-1). Down-regulated by HIV-1 Vpu. Acts as a receptor for Human Herpes virus 7/HHV-7.

1.0 – 5.0 mg/ml

≤ 0.5 EU/mg as determined by the LAL method

We use the IMPACT test generated by IDEXX Laboratories to guarantee our Ultra Low Endotoxin antibodies are pathogen free. Our mouse antibodies are tested for: - Mycoplasma spp. - Mycoplasma pulmonis - Sendai virus - Mouse hepatitis virus - Pneumonia virus of mice - Minute virus of mice - Mouse parvovirus (MPV1-5) - Theiler’s murine encephalomyelitis virus - Murine norovirus - Reovirus 3 - Mouse rotavirus - Ectromelia virus - Lymphocytic choriomeningitis virus - Polyoma virus - Lactate dehydrogenase-elevating virus - Mouse adenovirus (MAD1, MAD2) - Mouse cytomegalovirus - K virus - Mouse thymic virus - Hantaan virus - Corynebacterium bovis - Corynebacterium spp. (HAC2)

Each investigator should determine their own optimal working dilution for specific applications.