title: Complete amino acid sequence of the B chain of mistletoe lectin I.
abstract: The primary structure of the B chain of mistletoe lectin I, the component of a commercially available extract from Viscum album exhibiting immunomodulatory capacity, was established based on amino acid sequence analysis of the protein and peptides derived from its enzymatic digestion. It is composed of 264 residues, including seven cysteine residues and three N-linked carbohydrate chains. The amino acid sequence of MLB shows a high homology with those from other structurally related galactoside-specific lectins such as ricin and abrin with 169 and 146 identities, respectively. These results are of crucial importance in order to understand the biological activity of ML-1.
authors.affiliation: Abteilung für Physikalische Biochemie, Universität Tübingen, Germany.
authors.forename: M H
authors.initials: MH
authors.lastname: Soler
authors.forename: S
authors.initials: S
authors.lastname: Stoeva
authors.forename: W
authors.initials: W
authors.lastname: Voelter
mesh_terms: D000036:Abrin / Q000737:chemistry; D000276:Adjuvants, Immunologic / Q000737:chemistry*; D000595:Amino Acid Sequence; D000970:Antineoplastic Agents / Q000737:chemistry*; D006023:Glycoproteins / Q000737:chemistry; D037102:Lectins / Q000737:chemistry*; D014784:Mistletoe / Q000737:chemistry*; D008969:Molecular Sequence Data; D010446:Peptide Fragments / Q000737:chemistry; D037121:Plant Lectins; D028321:Plant Preparations; D010940:Plant Proteins; D010946:Plants, Medicinal; D054790:Ribosome Inactivating Proteins, Type 2; D012276:Ricin / Q000737:chemistry; D017421:Sequence Analysis; D017386:Sequence Homology, Amino Acid; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D014118:Toxins, Biological / Q000737:chemistry*
chemical_list: D000276:Adjuvants, Immunologic; D000970:Antineoplastic Agents; D006023:Glycoproteins; D037102:Lectins; D010446:Peptide Fragments; D037121:Plant Lectins; D028321:Plant Preparations; D010940:Plant Proteins; D054790:Ribosome Inactivating Proteins, Type 2; D014118:Toxins, Biological; C009674:ribosome inactivating protein, Viscum; D000036:Abrin; D012276:Ricin