Molecular identification of catalases fromNicotiana plumbaginifolia(L.)

Molecular identification of Ganoderma lucidum from Iran

Medicinal mushroom Ganoderma lucidum has been used in East Asia for centuries in order to prevent and treat a variety of diseases such as hepatitis, immunological disorders and cancers. In fact, this fungus contains a vast source of polysaccharides, proteins and secondary metabolites with anti-tumor and immuno-modulatory properties. Up to now, a variety of drug metabolites extracted from G. luc...

Catalases of Aspergillus fumigatus.

Upon infection of a host, the pathogenic fungus Aspergillus fumigatus is attacked by the reactive oxygen species produced by phagocytic cells. Detoxification of hydrogen peroxide by catalases was proposed as a way to overcome this host response. A. fumigatus produces three active catalases; one is produced by conidia, and two are produced by mycelia. The mycelial catalase Cat1p was studied prev...

Enzymology and Structure of Catalases

Regulation of catalases in Arabidopsis.

The catalase multi-gene family in Arabidopsis includes three genes encoding individual subunits which associate to form at least six isozymes that are readily resolved by non-denaturing gel electrophoresis. CAT1 and CAT3 map to chromosome 1, and CAT2 maps to chromosome 4. The nucleotide and deduced amino acids sequences of the three coding regions are highly related to each other and to other c...

Diversity of properties among catalases.

Catalases from 16 different organisms including representatives from all three phylogenetic clades were purified and characterized to provide a comparative picture of their respective properties. Collectively the enzymes presented a diverse range of activities and properties. Specific activities ranged from 20,700 to 273,800 units per milligram of protein and maximal turnover rates ranged from ...