\(v_{\text{FDH}}=\frac{v_{max,FDH}\bullet\left(\left[\text{NAD}^{+}\right]\bullet\left[\text{formate}\right]\right)}{\begin{matrix}K_{m,NAD}\bullet K_{m,formate}\bullet\left(1+\frac{\left[\text{NADH}\right]}{K_{I,\text{NADH}}}\right)+K_{m,formate}\bullet\left[\text{NAD}^{+}\right]\\ +K_{m,\text{NAD}^{+}}\bullet\left[\text{formate}\right]\bullet\left(1+\frac{[\text{NADH}]}{K_{I,\text{NADH}}}\right)+\left[\text{formate}\right]\bullet\left[\text{NAD}^{+}\right]\\ \end{matrix}}\) (2)