title: Purification of chrysancorin, a novel antifungal protein with mitogenic activity from garland chrysanthemum seeds.
abstract: A novel antifungal protein, designated chrysancorin, was isolated from seeds of Chrysanthemum coronarium var. spatiosum with a procedure involving ion exchange chromatography on DEAE-cellulose, affinity chromatography on Affi-gel blue resin, ion exchange chromatography on SP-Sepharose and FPLC-gel filtration on Superdex 75. The N-terminus of chrysancorin displays sequence similarity to the genomic sequence of chromosome 1 from Arabidopsis thaliana BAC T19E23. Chrysancorin exhibits a molecular mass of 13.4 kDa in gel filtration and SDS-polyacrylamide gel electrophoresis. It stimulates the proliferation of mouse splenocytes and inhibits the activity of human immunodeficiency virus-1 reverse transcriptase. The protein possesses antifungal activity against Botrytis cinerea, Mycosphaerella arachidicola and Physalospora piricola, but not against Rhizoctonia solani, Fusarium oxysporum and Coprinus comatus. However, we could not detect antibacterial activity against a variety of bacteria.
authors.affiliation: Department of Microbiology, College of Biological Science, China Agricultural University, Beijing, China.
authors.forename: H
authors.initials: H
authors.lastname: Wang
authors.forename: X Y
authors.initials: XY
authors.lastname: Ye
authors.forename: T B
authors.initials: TB
authors.lastname: Ng
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D000935:Antifungal Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D002455:Cell Division / Q000187:drug effects; D002845:Chromatography; D011723:Chrysanthemum cinerariifolium / Q000737:chemistry*; D054303:HIV Reverse Transcriptase / Q000037:antagonists & inhibitors; D006801:Humans; D051379:Mice; D008810:Mice, Inbred C57BL; D008826:Microbial Sensitivity Tests; D008934:Mitogens / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D008969:Molecular Sequence Data; D008970:Molecular Weight; D010940:Plant Proteins / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D010946:Plants, Medicinal / Q000737:chemistry; D018894:Reverse Transcriptase Inhibitors / Q000494:pharmacology; D012639:Seeds / Q000737:chemistry; D013154:Spleen / Q000166:cytology
chemical_list: D000935:Antifungal Agents; D008934:Mitogens; D010940:Plant Proteins; D018894:Reverse Transcriptase Inhibitors; C449781:chrysancorin protein, Chrysanthemum coronarium; D054303:HIV Reverse Transcriptase