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Volume 9, Number 11—November 2003

Research

Triosephosphate Isomerase Gene Characterization and Potential Zoonotic Transmission of Giardia duodenalis

Irshad M. Sulaiman*, Ronald Fayer†, Caryn Bern*, Robert H. Gilman‡, James M. Trout†, Peter M. Schantz*, Pradeep Das§, Altaf A. Lal*, and Lihua Xiao*Comments to Author 
Author affiliations: *Centers for Disease Control and Prevention, Atlanta, Georgia, USA; †U.S. Department of Agriculture, Beltsville, Maryland, USA; ‡Johns Hopkins School of Public Health, Baltimore, Maryland, USA; §National Institute of Cholera and Enteric Diseases, Calcutta, West Bengal, India

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Figure 2

Variation in the triosephosphate isomerase (TPI) nucleotide sequences of G. duodenalis isolates belonging to the assemblage B. Twelve distinct subtypes of G. duodenalis based on the these sequences were evident within assemblage B. The isolates representing these subtypes (S1–S12) as follows: S1 (341, 2578, 2579, 2580, 2586, 2587, 2879, 2890, 2895, 2920, 2924, 2926, 2935, 4599, 4600); S2 (2582, 2583, 2589, 2932); S3 (2506, 2536, 2917); S4 (2590, 2887, 2913, 2915, 2930); S5 (2902); S6 (2877); S7

Figure 2. Variation in the triosephosphate isomerase (TPI) nucleotide sequences of G. duodenalis isolates belonging to the assemblage B. Twelve distinct subtypes of G. duodenalis based on the these sequences were evident within assemblage B. The isolates representing these subtypes (S1–S12) as follows: S1 (341, 2578, 2579, 2580, 2586, 2587, 2879, 2890, 2895, 2920, 2924, 2926, 2935, 4599, 4600); S2 (2582, 2583, 2589, 2932); S3 (2506, 2536, 2917); S4 (2590, 2887, 2913, 2915, 2930); S5 (2902); S6 (2877); S7 (2900); S8 (2901); S9 (1653, 1654, 1655, 3469, 3470, 3495, 3500, 3518, 3599); S10 (3565, 3569); S11 (3577); and S12 (1758). Dots denote sequence identity to GenBank accession no. L02116; dashes denote sequence information not obtained.

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