PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 25170965-6 2014 Electron microscopic analysis revealed that the M6PR-positive swollen vacuoles were multi-layered and contained melanized granules, and they produced melanin when L-DOPA was applied, indicating that these vacuoles were still capable of producing melanin, but the inner conditions were not compatible with melanin production. Levodopa 163-169 mannose-6-phosphate receptor, cation dependent Homo sapiens 48-52