Patent ID: 8679799

Claim:
An isolated nucleic acid molecule suitable for modulating the expression of at least one enzyme activity of a sol operon or an adc operon for solvent and/or acid production in a host cell, the molecule having a nucleic acid sequence selected from the group consisting of: a) SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3, SEQ ID NO: 4, SEQ ID NO: 5, SEQ ID NO: 6, SEQ ID NO: 7, SEQ ID NO: 8, SEQ ID NO: 9 and SEQ ID NO: 10, b) sequences fully complementary thereof; and c) modified sequences and fragments that have—with the sequences according to (a) or (b)—at least 90% sequence congruence and code the function of a regulator for modulating the expression of this enzyme activity.