Recombinant human CD44 protein (Active)

Specifications

Form

Lyophilized

General info

Function

The protein expressed by gene CD44 functions as a cell-surface receptor involved in cell-cell interactions, cell adhesion, and migration, allowing cells to detect and react to changes in their tissue microenvironment. It is implicated in numerous cellular processes, including the activation, recirculation, and homing of T-lymphocytes, hematopoiesis, inflammation, and the response to bacterial infection. Through its ectodomain, CD44 interacts with extracellular matrix components like hyaluronan, collagen, growth factors, cytokines, and proteases, serving as a platform for signal transduction by forming protein complexes with receptor kinases and membrane proteases via its cytoplasmic domain. Effectors such as PKN2, the RhoGTPases RAC1 and RHOA, Rho-kinases, and phospholipase C coordinate signaling pathways that promote calcium mobilization and actin-mediated cytoskeleton reorganization crucial for cell migration and adhesion. This supplementary information is collated from multiple sources and compiled automatically.

Post-translational modifications

Proteolytically cleaved in the extracellular matrix by specific proteinases (possibly MMPs) in several cell lines and tumors.. N-glycosylated.. O-glycosylated; contains chondroitin sulfate glycans which can be more or less sulfated and whose number may affect the accessibility of specific proteinases to their cleavage site(s). It is uncertain if O-glycosylation occurs on Thr-637 or Thr-638.. Phosphorylated; activation of PKC results in the dephosphorylation of Ser-706 (constitutive phosphorylation site), and the phosphorylation of Ser-672.