Volume 9, Number 11, November 2003

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*
*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; and §National Institute of Cholera and Enteric Diseases, Calcutta, West Bengal, India

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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This page last reviewed September 30, 2003

Emerging Infectious Diseases Journal
National Center for Infectious Diseases
Centers for Disease Control and Prevention