Abstract
Pectinesterase (PE), from commercial orange peels or ammonium sulfate fractionation (50-80% saturation) of pea pods, was detected on polyacrylamide gels after native acidic polyacrylamide gel electrophoresis (PAGE) or sodium dodecyl sulfate (SDS)-PAGE by using the synthetic substrate β-naphthyl acetate (β-NA). The release of β-naphthol (at 322 nm) from β-NA was proportional to PE activity. The PE activity bands on polyacrylamide gels after native acidic PAGE or SDS-PAGE were stained with a combination of tetrazotized o-dianisidine and β-NA. This fast and sensitive method can be used for enzyme purification and characterization.
| Original language | English |
|---|---|
| Pages (from-to) | 692-694 |
| Number of pages | 3 |
| Journal | Electrophoresis |
| Volume | 19 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - May 1998 |
| Externally published | Yes |
Keywords
- Activity staining
- Native acidic polyacrylamide gel electrophoresis
- Pectinesterase
ASJC Scopus subject areas
- Biochemistry
- Clinical Biochemistry