Ontology of Biological Attributes entry OBA_2042453 (level of myotubularin-related protein 6 in blood serum) is the amount of a phosphatidylinositol-3,5-bisphosphate 3-phosphatase MTMR6 when measured in blood serum. Also known as: blood serum phosphatidylinositol-3,5-bisphosphate 3-phosphatase MTMR6 amount.