TABLE 1.

Reactivity of MAbs in single-step direct sandwich EIA with other bacterial catalases

OriginCatalase activity (μmol of H2O2/min/ml)aA450/630b
21G241A582B9
H. pylori ATCC 435041.6 (10,000)0.220.160.14
6.4 (10,000)2.01.31.2
H. hepaticus ATCC 5144822 (60)0.0140.0230.013
H. felis ATCC 4917920 (1,200)0.0140.0320.021
H. mustelae ATCC 4377222 (8,200)0.0140.0340.062
H. cinaedi ATCC 356835.4 (12)0.0140.0370.051
C. jejuni ATCC 294282.3 (0.81)0.0170.0310.042
E. coli ATCC 2592220 (120)0.0180.0330.012
  • a Cell extracts were used as bacterial catalases. Specific activities (in micromoles of H2O2 per minute per milligram of cellular protein) are shown in parentheses.

  • b Data represent mean values in duplicate.