4-methyl-2-oxopentanoate(out) + H(+)(out) <=> 4-methyl-2-oxopentanoate(in) + H(+)(in)
4-methyl-2-oxopentanoate(out) + h(+)(out) <=> 4-methyl-2-oxopentanoate(in) + h(+)(in)
4-methyl-2-oxopentanoate(out) + H(+)(out) <=> 4-methyl-2-oxopentanoate(in) + H(+)(in)
4-methyl-2-oxopentanoate(out) + h(+)(out) <=> 4-methyl-2-oxopentanoate(in) + h(+)(in)