Document Detail


Lectins from bulbs of the Chinese daffodil Narcissus tazetta (family Amaryllidaceae).
MedLine Citation:
PMID:  11012085     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The isolation of three lectins with similar N-terminal amino acid sequences from the bulbs of the Chinese daffodil Narcissus tazetta was achieved. The isolation protocol involved ion exchange chromatography on DEAE-cellulose, affinity chromatography on mannose-agarose, and fast protein liquid chromatography-gel filtration on Superose 12. The lectins were all adsorbed on mannose-agarose and demonstrated a single band with a molecular weight of 13 kDa in SDS-polyacrylamide gel electrophoresis and a single 26 kDa peak in gel filtration, indicating that they were mannose-binding, dimeric proteins. The lectins differed in hemagglutinating activity, with the magnitude of the activity correlating with the ionic strength of the buffer required to elute the lectin from the DEAE-cellulose column. The bulb lectin did not exert potent cytotoxicity against cancer cell lines or fetal bovine lung cells but inhibited syncytium formation in, and reinstated viability of, fetal bovine lung cells infected with bovine immunodeficiency virus.
Authors:
L S Ooi; T B Ng; Y Geng; V E Ooi
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Biochemistry and cell biology = Biochimie et biologie cellulaire     Volume:  78     ISSN:  0829-8211     ISO Abbreviation:  Biochem. Cell Biol.     Publication Date:  2000  
Date Detail:
Created Date:  2001-01-03     Completed Date:  2001-01-18     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8606068     Medline TA:  Biochem Cell Biol     Country:  CANADA    
Other Details:
Languages:  eng     Pagination:  463-8     Citation Subset:  IM    
Affiliation:
Department of Biochemistry, The Chinese University of Hong Kong, Shatin, NT.
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MeSH Terms
Descriptor/Qualifier:
Amino Acid Sequence
Angiosperms / chemistry*
Animals
Cattle
Cell Death / drug effects
Cell Line
Cell Survival / drug effects
Chromatography
Cytopathogenic Effect, Viral / drug effects
Drug Screening Assays, Antitumor
Electrophoresis, Polyacrylamide Gel
Giant Cells / drug effects
Hemagglutination Tests
Humans
Immunodeficiency Virus, Bovine / drug effects,  physiology
Lectins / chemistry*,  isolation & purification*,  pharmacology
Lung
Mice
Molecular Sequence Data
Plant Lectins
Plant Proteins / chemistry,  isolation & purification,  pharmacology
Sequence Alignment
Tumor Cells, Cultured
Chemical
Reg. No./Substance:
0/Lectins; 0/Plant Lectins; 0/Plant Proteins

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