PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 28877378-5 2018 METHODOLOGY: Based upon previous structure elucidation studies, four alkaloids targeted in this study were identified using high resolution mass spectrometry by direct infusion of plant extracts, and their distributions were imaged by DESI-MSI via tissue imprints on a porous Teflon surface. Alkaloids 69-78 RB binding protein 4, chromatin remodeling factor Homo sapiens 240-243