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  • Title: [Molecular weight and subunit composition of extracellular fructosobisphosphatase of Acholeplasma laidlawii var. granulum strain 118].
    Author: Skrypal' IH, Malynovs'ka LP, Tokovenko IP.
    Journal: Mikrobiol Z; 2005; 67(6):73-8. PubMed ID: 16493888.
    Abstract:
    Molecular weight of extracellular fructosobisphosphatase of Acholeplasma laidlawii var. granulum strain 118--an agent of pale-green dwarf of cereals has been determined. This enzyme is the basic factor of pathogenicity of this organism, and, maybe, of all phytoplasmas, owing to realization of the enzyme noncontrolled function in the plant organism, its habit acquires the disease symptoms characteristic of "yellows". It has been established that in the native condition the extracellular fructosobisphosphatase of Acholeplasma laidlawii var. granulum st. 118 has molecular weight 230 000 +/- 5 000 Da, and in denaturating ones--56 600 Da, i.e., the enzyme in the native condition consists of four equal subunits. The subunit composition is peculiar to fructosobisphosphatase of other microorganisms already described in literature; fructosobisphosphatase of the mollicute as to its parameters both in native and denaturated conditions occupies the intermediate place among them.
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