Solanum tuberosum |
| SPECIES IMAGE |  |
SOURCE | Potato |
| LECTINS | STA |
| MOLECULAR IMAGE |  |
CLASS | Chitin-binding lectins |
| NOMEN | LECp.Sol.Tubtu.Hch1 |
| INDEX | Plant lectin / / / / |
| CHARACTERIZATION | The respective antifungal properties of lectin and chitinases were studied by following their effects against early developmental stages of Fusarium oxysporum, a fungal potato pathogen. See: C R Acad Sci III 1993 Aug;316(8):788-92 The lectin content in the tubers varies considerable according to the variety. STA shares some sequence similarities with the extensin family, hevein lectin family and snake venon disintegrins (platelet aggregation inhibitors) Plant J. 1994 (5); 849-861 |
| BIOACTIVITY | STA agglutinates group A erythrocytes at a titer of 1:64; group B erythrocytes at a titer of 1:128; group O erythrocytes at a titer of 1:256; by crude lectin preparation (16mg/ml). See: Int J Cancer (1970); 6:283 STA agglutinates bovine, sheep, horse, pig, cat, guinea pig, rat and mouse erythrocytes as well as human. See: Meth. Enzymol. 1978 (50); 307-345 |
| SOURCE TISSUE | |
| SPECIFICITY | GlcNAc (oligomers): A major protein of the tuber is the chitin-binding lectin. STA binds to some glycoproteins (e.g. fetuin and ovomucoid) |
| INHIBITORS | GlcNAc does not inhibit the agglutination of STA. See: Biochem J. 1973 (135); 307-314 |
| REFERENCES | Biochem J 1992 May 1;283 ( Pt 3) :813-21 J. Biol Chem 1982 (258); 2886-2891 |