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Agarose gel showing the HaeIII restriction products of the intra-nahAc amplicon. Lanes: 1, nondigested 866-bp intra-nahAc PCR product from P. stutzeri AN10; 2, digested PCR product from Pseudomonas sp. strain C18; 3, digested PCR product from P. stutzeri strain AN10; 4, digested PCR product from Pseudomonas sp. strain 5IIIASal. MW, 100-bp molecular mass marker (Gibco-BRL).
