Computational Insights into the molecular dynamics of the binding of ligands in the Methanol Dehydrogenase

Abstract

Methanol dehydrogenase (MDH) is a promising biocatalyst for industrial use, converting methanol to formaldehyde. Our molecular modeling revealed methanol binds to MDH with [~]7 kcal/mol free energy, while formaldehyde binds with [~]4 kcal/mol. This suggests methanol remains longer in the active site, and formaldehyde exits more readily post-reaction. These insights are crucial for designing more efficient MDH variants for industrial applications. Graphical abstract O_FIG O_LINKSMALLFIG WIDTH=200 HEIGHT=81 SRC="FIGDIR/small/602606v1_ufig1.gif" ALT="Figure 1"> View larger version (34K): org.highwire.dtl.DTLVardef@442a65org.highwire.dtl.DTLVardef@13b877eorg.highwire.dtl.DTLVardef@13c8ef6org.highwire.dtl.DTLVardef@cde32b_HPS_FORMAT_FIGEXP M_FIG C_FIG The left panel shows methanol and formaldehyde within the active site of methanol dehydrogenase, illustrating entry and release paths. The right panel presents the free energy profiles, indicating methanols stronger binding affinity and formaldehydes easier release post-reaction.