Antibodies

Protein G is an immunoglobulin-binding protein expressed in group C and G Streptococcal bacteria much like Protein A but with differing binding specificities.

Protein A is a 42 kDa surface protein originally found in the cell wall of the bacteria Staphylococcus aureus.

Clazakizumab (formerly ALD518 and BMS-945429) is an aglycosylated, humanized monoclonal antibody against interleukin-6.

Passive immunity is the transfer of active humoral immunity in the form of ready-made antibodies.

A hypervariable region (HVR) is a location within nuclear DNA or the D-loop of mitochondrial DNA in which base pairs of nucleotides repeat (in the case of nuclear DNA) or have substitutions (in the case of mitochondrial DNA).

BioLegend is a global developer and manufacturer of antibodies and reagents used in biomedical research located in San Diego, California.

Anthrax immune globulin, tradename Anthrasil, is a human immune globulin that is used in combination with antibiotics to treat anthrax.

Abituzumab is a humanized monoclonal antibody (mAb) targeted at CD51 (an integrin).

CR6261 is a monoclonal antibody that binds to a broad range of the influenza virus including the 1918 "Spanish flu" (SC1918/H1) and to a virus of the H5N1 class of avian influenza that jumped from chickens to a human in Vietnam in 2004 (Viet04/H5).

Heterophile antigens:certain antigens of similar nature, if not identical, present in different tissues in different biological species, classes or kingdoms.

A neutralizing antibody (NAb) is an antibody that defends a cell from an antigen or infectious body by neutralizing any effect it has biologically.

Rheumatoid factor (RF) is the autoantibody (antibody directed against an organism's own tissues) that was first found in rheumatoid arthritis.