These HPK1 ELISA kits are immunodetection tools for measuring the levels of HPK1 in biological samples. HPK1 is an alias of the human MAP4K1 gene, which encodes the protein, mitogen-activated protein kinase kinase kinase kinase 1. Notably, HPK1 is known to play a role in cell proliferation and intracellular signal transduction, among other functions. The MAP4K1 protein is 833 amino acid residues in length and 91.3 kilodaltons in mass. However, as many as 2 protein isoforms have been identified. In terms of tissue specificity, it is notably expressed in hematopoietic organs, including bone marrow, spleen and thymus. This protein is known to be ubiquitinated and phosphorylated. Other names for this target antigen include . Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.