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. 2015 Aug 13;13(8):e1002213. doi: 10.1371/journal.pbio.1002213

Table 1. Constants used for the quantitative model of Redβ behavior.

Constant Value Unit Explanation
a dimer (2.22 ± 1.28) ∙ 105 M−1 Association constant of β 1 + β 1β 2
a (2.96 ± 0.28) ∙ 106 M−1 Association constant of β n + β 1β n+1, n ≥ 2
K d (5.0 ± 0.2) ∙ 10−6 M Dissociation constant of β 1 + ssDNA ⇆ ssDNA ⋅ β 1
K oligo (3.4 ± 0.6) ∙ 10−1 Dissociation constant of Redβ protomers β unboundβ bound from ssDNA

Parameter ± standard error. Protomer: structural unit of a protein oligomer; a dimer = a m = 1, a = a m>1, where m is the degree of oligomerization; see Eq 4. Note that the K d is for a single binding site. The effective K d depends on the ssDNA length and, here, is K Epstein ≈ 240 nM.