Skip to main content
. 2010 Jan 27;285(13):9716–9728. doi: 10.1074/jbc.M109.073981

TABLE 1.

Competition kinetics assessment of reactive centers in the 51-mer construct that are subject to chlorination by HOCl

Amino acida kb nc n × k Pd
Arginine 26 5 1.3 × 102 5.4 × 10−4
Asparagine 0.03 1 0.03 1.3 × 10−7
Cysteine 3.0 × 107 0 0 0
Glutamine 0.03 2 0.06 2.5 × 10−7
Histidine 1.0 × 105 2 2.0 × 105 0.83
Lysine 5.0 × 103 6 3.0 × 104 0.13
Methionine 3.8 × 107 0 0 0
Tryptophan 1.1 × 104 1 1.1 × 104 4.6 × 10−2
Tyrosine 44 0 0 0
Backbone amide 10 50 5 × 102 2.1 × 10−3

a Only those amino acids with k ≥ 0.03 m−1 s−1 are listed here.

b Rate constant (m−1 s−1) for the reaction of hypochlorite with the side chain of the amino acid or with the backbone amide nitrogen.

c Number of this amino acid present in the 51-mer or number of backbone amide nitrogens in the 51-mer.

d Normalized rate for reaction with HOCl calculated from the equation P = niki/(Σiniki).