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Table 2 Nucleotide mutations that were identified in the VP1 region of the Sabin polioviruses

From: The detection of 3 ambiguous type 2 vaccine-derived polioviruses (VDPV2s) in Uganda

Position of mutation 156 165 180 279 308 316 420 427 428 432 505 516 534 645 819 828 885
Sabin 2 reference C G C C G T A A T T A C C A T A A
Bugiri 2          C         G
Hoima 1          Y         
Yumbe 1        G G          
Yumbe 2        G G          
Kiryandongo 1          C         
Kiryandongo 2          C         
Kisoro (VDPV)      aA/G    aG/A   aA/T aG/A aT/C aT/C aG/A    
Kamuli 2 (VDPV) T   A   A     C   G     C   
Kween (VDPV)   A   T A G    C        C  
Mananfwa 1       A            
Frequency of nucleotide mutations 1 1 1 1 3 2 1 3 6 1 2 1 1 1 1 1 1
  1. A bold letter represents ≥3 nucleotide mutations at the corresponding position
  2. a: mixed nucleotide site; A or C or G or T are abbreviations, A Adenine, C Cytosine, G Guanidine and T Thymidine. Y represents C or T. The names in the first column are districts of Sabin 2 and VDPV origin