Table 1.

Binding constants (K_α) of different carbon atoms of vitamin B12—protein interaction interactions.

Binding Constant—Kα (L/mol)
	C20		C25		C35		C53		C10		B10/11		B4		B2		B7
	Cyanocobalamin	Aqua Cobalamin	Cyanocobalamin	Aqua Cobalamin	Cyanocobalamin	Aqua Cobalamin	Cyanocobalamin	Aqua Cobalamin	Cyanocobalamin	Aqua Cobalamin	Cyanocobalamin	Aqua Cobalamin	Cyanocobalamin	Aqua Cobalamin	Cyanocobalamin	Aqua Cobalamin	Cyanocobalamin	Aqua Cobalamin
Gluten	2.88 × 104	3.21 × 104	3.03 × 104	3.59 × 104	3.7 × 103	2.78 × 103	1.99 × 104	4.65 × 103	2.77 × 103	2.83 × 103	3.02 × 104	3.46 × 104	3.16 × 103	3.65 × 103	3.77 × 103	3.09 × 103	2.76 × 103	2.40 × 103
Myoglobin	3.16 × 103	4.04 × 104	4.82 × 104	3.04 × 104	4.34 × 104	4.39 × 104	3.16 × 104	3.51 × 104	4.33 × 104	3.86 × 104	3.96 × 104	4.67 × 104	3.74 × 104	4.86 × 104	3.05 × 104	4.37 × 104	2.48 × 104	4.20 × 104
Casein	4.24 × 104	3.04 × 104	4.88 × 104	2.71 × 104	2.47 × 104	4.27 × 104	3.42 × 104	5.52 × 103	3.01 × 104	3.11 × 104	3.19 × 104	4.72 × 104	2.29 × 104	3.75 × 104	2.92 × 104	3.11 × 104	3.16 × 104	3.04 × 104
Egg albumin	2.35 × 104	3.73 × 104	3.04 × 104	3.20 × 104	2.33 × 104	3.44 × 104	2.43 × 104	2.66 × 104	1.87 × 104	3.28 × 104	1.61 × 104	2.60 × 104	2.48 × 104	4.16 × 104	1.60 × 104	6.46 × 104	2.41 × 104	8.03 × 104
Pea	7.29 × 103	4.10 × 104	2.96 × 104	1.48 × 104	1.13 × 104	3.06 × 104	3.85 × 104	3.04 × 104	1.08 × 104	3.21 × 104	7.65 × 103	3.80 × 104	1.28 × 104	4.54 × 104	1.09 × 104	4.54 × 104	1.01 × 104	4.97 × 104
Rice	3.13 × 104	3.43 × 104	3.84 × 104	2.46 × 104	3.52 × 104	2.46 × 104	2.21 × 104	3.91 × 104	2.44 × 104	2.60 × 104	2.49 × 104	4.28 × 104	2.01 × 104	2.41 × 104	2.31 × 103	2.56 × 103	4.81 × 104	2.95 × 104