Distinct contributions of KH domains to substrate binding affinity of Drosophila P-element somatic inhibitor protein

TABLE 2.

Binding (K_d) data of wild-type PSI-KH03 on RNA sequences of varying length and sequence context

RNA	K_d (nM)^a	ΔΔG (kcal/mol)
^aAll binding determinations are averages of at least four separate experiments. Errors are reported as one standard deviation from the average.
^bNot applicable.
Δ11	11 ± 3	n/a^b
PSI29	22 ± 7	−0.38
PSI21	200 ± 30	−1.6
PL2	1300 ± 300	−2.6