金山科研平台，产品价格货期咨询微信：jinshanbio Molecule Information: TIM-1/KIM-1/HAVCR Long Name: T Cell Immunoglobulin Mucin-1 Aliases: HAVCR1; KIM-1 Entrez Gene IDs: 26762 (Human); 171283 (Mouse); 286934 (Rat) Background: TIM-1

The TIM-1 gene is highly polymorphic and undergoes alternate splicing. For instance, the presence of a six aa sequence (MTTTVP) at position #137 of the mature molecule is associated with protection from atopy in people with a history of hepatitis A. There are two cytoplasmic alternate splice forms of TIM-1. One is a long (359 aa) kidney form termed TIM-1b, and one is a short (334 aa) liver form termed TIM-1a. Both are identical through the first 323 aa of their precursors. TIM-1b contains a tyrosine phosphorylation motif that is not present in TIM-1a. TIM-1 is also known to circulate as a soluble form. Constitutive cleavage by an undefined MMP (possibly ADAM33) releases an 85-90 kDa soluble molecule. The ECD of human TIM-1 is 50% and 43% aa identical to mouse and canine TIM-1 ECD, respectively. The only two reported ligands for TIM-1 are TIM-4 and the hepatitis A virus. However, others are believed to exist, and based on the ligand for TIM-3, one may well be an S-type lectin. TIM1 ligation induces T cell proliferation and promotes cytokine production.