DMBT1 Protein, Human (HEK293, His)

DMBT1 Protein emerges as a multifaceted candidate with potential tumor suppressor roles in brain, lung, esophageal, gastric, and colorectal cancers. Beyond its implications in cancer, DMBT1 is implicated in diverse biological processes, serving roles in the mucosal defense system, cellular immune defense, and epithelial differentiation. It acts as an opsonin receptor for SFTPD and SPAR in macrophage tissues throughout the body, including the gastrointestinal tract's epithelial cells. Furthermore, DMBT1 plays a role in liver regeneration and is a critical factor in the fate decision and differentiation of transit-amplifying ductular (oval) cells within the hepatic lineage. Its involvement in the terminal differentiation of columnar epithelial cells during early embryogenesis is noteworthy. Additionally, DMBT1 functions as a binding protein in saliva, potentially regulating taste sensation. It binds to the HIV-1 envelope protein, displaying a dual role in both inhibiting and facilitating viral transmission. The protein exhibits a broad calcium-dependent binding spectrum against Gram-positive and Gram-negative bacteria, suggesting a significant role in defense against bacterial pathogens. DMBT1's diverse interactions, including association with the actin cytoskeleton and involvement in its remodeling during regulated exocytosis, highlight its versatile functions in cellular processes. Its pH-dependent interaction with pancreatic zymogens suggests a potential role as a Golgi cargo receptor in the regulated secretory pathway of pancreatic acinar cells, further underlining the complexity and importance of DMBT1 in various physiological contexts.