Your browser version may not work well with NCBI's Web applications. More information here...
1: Eur J Biochem. 1984 Oct 15;144(2):217-21.Click here to read Links

Purification and characterization of tomato polygalacturonase converter.

Pressey R.

Extracts of ripe tomatoes contain two forms of polygalacturonase (PG I and PG II). A heat-stable component that binds PG II to produce PG I has been isolated from tomato fruit. This component has been named polygalacturonase converter (PG converter). The PG converter has been purified by gel filtration, ion-exchange chromatography and chromatofocusing. It appears to be a protein with a relative molecular mass of 102000. It was readily inactivated by papain and pronase. The converter was labile at alkaline conditions, and treatment of PG I at pH 11 released free PG II. A similar factor with a lower molecular mass was extracted from tomato foliage.

PMID: 6489331 [PubMed - indexed for MEDLINE]