Recombinant human IL23R (interleukin 23 receptor), encompassing amino acids 24-355. The C-terminus is fused with the Fc fragment of a human IgG1 followed by an Avi-Tag™. The recombinant protein was affinity purified. HiP™ indicates a high purity protein (≥90% pure) and less than 10% aggregation as measured by gel filtration.