... lactate, the activity of LDHB was 86% of the value determined in the absence of lactate, and at300 mm lactate, the activity of LDHB was only 24% of the same control value.Characterization of glucose ... Examination of the model of the R state of LDH shows a much higher density of posi-tive charge in the region of contact between the mono-mers than in LDHB, particularly in the region of contact ... activator of LDHB with aKact of 2.0 ± 0.5 mm.Piwas nearly as effective asFru(1,6)P2for activation of LDHB, insofar as the maximal activity in the presence of Piwas 70–80% of the maximal...