ID 2.4.1.348 DE N-acetyl-alpha-D-glucosaminyl-diphospho-ditrans,octacis-undecaprenol DE 3-alpha-mannosyltransferase. CA GDP-alpha-D-mannose + N-acetyl-alpha-D-glucosaminyl-di-trans,octa- CA cis-undecaprenyl diphosphate = alpha-D-mannosyl-(1->3)-N-acetyl-alpha-D- CA glucosaminyl-di-trans,octa-cis-undecaprenyl diphosphate + GDP + H(+). CC -!- The enzyme is involved in the biosynthesis of the linker region of CC the polymannose O-polysaccharide in the outer leaflet of the membrane CC of Escherichia coli serotypes O8, O9 and O9a. DR Q47595, WBDC_ECOLX ; Q9HTC0, WBPZ_PSEAE ; //