The FTCD protein is a folate-dependent enzyme with dual functions of transferase and deaminase activities. It plays a crucial role in directing the one-carbon units from methyliminoglutamic acid into the folate pool, contributing to the regulation of folate metabolism. FTCD Protein, Human (sf9, His) is the recombinant human-derived FTCD protein, expressed by Sf9 insect cells , with C-His labeled tag.