Table II.
Temperature of Hydrophobic Exposure (Th) Values of Antibodies Obtained From Differential Scanning Fluoroscopy Measurements, as a Function of pH
Subclass | Tm (°C) | ||||||
---|---|---|---|---|---|---|---|
pH | 4.0 | 5.0 | 5.5 | 6.0 | 7.0 | ||
Mab-A | |||||||
G1 | |||||||
Th1 | 63 | 68 | 69.5 | 70 | 70.5 | ||
Th2 | 73 | 74.5 | 74.5 | NA | NA | ||
G2 | |||||||
Th1 | 62.5 | 68 | 69.5 | 70 | 70.5 | ||
Th2 | 71.5 | 73 | NA | NA | NA | ||
G4PE | |||||||
Th1 | 56.5 | 60 | 61 | 61.5 | 62 | ||
Th2 | 67.5 | 69.5 | 70 | 70 | 70 | ||
Mab-B | |||||||
G1 | |||||||
Mab-C | |||||||
G1 | |||||||
Th1 | 62.5 | 67.5 | 69 | 69.5 | 70 | ||
Th2 | 74 | 75 | 75 | 74.5 | 74 | ||
G2 | |||||||
Th1 | 61.5 | 67 | 69 | 70 | 70.5 | ||
Th2 | 73.5 | 74.5 | 74.5 | 74.5 | NA | ||
G4PE | |||||||
Th1 | 56.5 | 60 | 60.5 | 61 | 62 | ||
Th2 | 73 | 74 | 74 | 73.5 | 73.5 | ||
Mab-C | |||||||
G1 | |||||||
Th1 | 63.5 | 68 | 69.5 | 70 | 70.5 | ||
Th2 | 76.5 | 78 | 78 | 78 | 78 | ||
G2AAAS | |||||||
Th1 | 58.5 | 63.5 | 65 | 66 | 66 | ||
Th2 | 74.5 | 76.5 | 77 | 77.5 | 77.5 | ||
G4 | |||||||
Th1 | 59 | 62.5 | 64 | 65 | 65.5 | ||
Th2 | 74 | 75.5 | 76 | 76 | 75.5 | ||
G4PE | |||||||
Th1 | 56.5 | 60.5 | 61.5 | 62 | 62.5 | ||
Th2 | 74 | 75.5 | 75.5 | 75.5 | 75.5 | ||
Mab-D | |||||||
G1 | |||||||
Th1 | 63 | 68 | 69 | 70 | 70 | ||
Th2 | 79 | 81 | 81.5 | 82 | 82.5 | ||
G2AAAS | |||||||
Th1 | 58 | 63 | 65 | 65.5 | 66 | ||
Th2 | 75 | 82.5 | 82.5 | 83 | 83 | ||
G4 | |||||||
Th1 | 58 | 62.5 | 64.5 | 65.5 | 65.5 | ||
Th2 | 78 | 81 | 81 | 81.5 | 81.5 | ||
G4PE | |||||||
Th1 | 56.5 | 60.5 | 61.5 | 62.5 | 63 | ||
Th2 | 78.5 | 81 | 81.5 | 81.5 | 81.5 | ||
NA,not available; melting transition was not detected or well defined. |
Tm, thermal unfolding midpoint.