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Table 3 Biotype characterization and ctxB genotype comparison of V. cholerae O1 isolates from Angola and India

From: New V. choleraeatypical El Tor variant emerged during the 2006 epidemic outbreak in Angola

Strain

rstR

tcpA

ctxB

   

Genotypea

Amino acid positionb

VC582

ET

ET

3 (ET)

20 (His); 24 (Gln); 28 (Asp); 34 (His); 39 (Tyr); 46 (Phe); 55 (Lys); 68 (Ile)

VC547

ET

ET

3 (ET)

20 (His); 24 (Gln); 28 (Asp); 34 (His); 39 (Tyr); 46 (Phe); 55 (Lys); 68 (Ile)

VC1383

ET

ET

3 (ET)

20 (His); 24 (Gln); 28 (Asp); 34 (His); 39 (Tyr); 46 (Phe); 55 (Lys); 68 (Ile)

VC175

ET

ET

1 (Cla)

20 (His); 24 (Gln); 28 (Asp); 34 (His); 39 (His); 46 (Phe); 55 (Lys); 68 (Thr)

VC7452

ET

ET

1 (Cla)

20 (His); 24 (Gln); 28 (Asp); 34 (His); 39 (His); 46 (Phe); 55 (Lys); 68 (Thr)

  1. Cla, Classical type; ET, El Tor type; aAccording to ctxB genotyping by Safa et al., 2010 [2]; bNucleotide position +1 corresponds to the A of the ATG start codon in ctxB.