ID 1.1.98.3 DE decaprenylphospho-beta-D-ribofuranose 2-dehydrogenase. AN decaprenylphosphoryl-beta-D-ribofuranose 2'-epimerase. CA FAD + H(+) + trans,octa-cis-decaprenylphospho-beta-D-ribofuranose = FADH2 CA + trans,octa-cis-decaprenylphospho-beta-D-erythro-pentofuranosid-2-ulose. CC -!- The enzyme, isolated from the bacterium Mycobacterium smegmatis, CC is involved, along with EC 1.1.1.333 in the epimerization of CC trans,octacis-decaprenylphospho-beta-D-ribofuranose to trans,octacis- CC decaprenylphospho-beta-D-arabinofuranose, the arabinosyl donor for CC the biosynthesis of mycobacterial cell wall arabinan polymers. DR A0R607, DPRE1_MYCS2; P9WJF0, DPRE1_MYCTO; P9WJF1, DPRE1_MYCTU; //