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Intracellular metabolites of the purine pathway in strains A4, I1, I2 and I4. A. GMP, XMP, AMP and IMP nucleotide concentrations. B. Guanosine, xanthosine, adenosine and inosine nucleoside concentrations. C. Guanine, xanthine, adenine and hypoxanthine nucleobase concentrations.
