Secreted modular calcium-binding protein 2 (SMOC2), which is a member of the secreted protein acidic and rich in cysteine (SPARC) family of matricellular proteins, interacts with matrix proteins, cell surface receptors, cytokines, proteasomes and other effector molecules to regulate cell-cell and cell-microenvironment communication (PMID: 36513634). It is expected to be located in extracellular space. The calculated molecular weight of SMOC2 is 50 kDa. In recent years, SMOC2 has been reported to be highly expressed in tumor tissues and to promote tumor migration, invasion and growth. In addition to its role in tumor progression, it also regulates wound healing, bone growth, fibrosis and embryogenesis (PMID: 36513634).