ID   2.4.1.371
DE   polymannosyl GlcNAc-diphospho-ditrans,octacis-undecaprenol 2,3-alpha-
DE   mannosylpolymerase.
CA   (1) [alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-Man-(1->2)-alpha-D-
CA   Man-(1->2)](n)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-
CA   alpha-D-GlcNAc-di-trans,octa-cis-undecaprenyl diphosphate + 2 GDP-alpha-
CA   D-mannose = alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-[alpha-D-Man-(1->3)-
CA   alpha-D-Man-(1->3)-alpha-D-Man-(1->2)-alpha-D-Man-(1->2)](n)-alpha-D-Man-
CA   (1->3)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-GlcNAc-
CA   di-trans,octa-cis-undecaprenyl diphosphate + 2 GDP + 2 H(+).
CA   (2) alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-[alpha-D-Man-(1->3)-alpha-D-
CA   Man-(1->3)-alpha-D-Man-(1->2)-alpha-D-Man-(1->2)](n)-alpha-D-Man-(1->3)-
CA   alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-GlcNAc-di-trans,octa-
CA   cis-undecaprenyl diphosphate + 2 GDP-alpha-D-mannose = [alpha-D-Man-
CA   (1->3)-alpha-D-Man-(1->3)-alpha-D-Man-(1->2)-alpha-D-Man-(1->2)](n+1)-
CA   alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-GlcNAc-
CA   di-trans,octa-cis-undecaprenyl diphosphate + 2 GDP + 2 H(+).
CC   -!- The enzyme is involved in the biosynthesis of polymannose
CC       O-polysaccharide in the outer leaflet of the membrane of Escherichia
CC       coli serotype O9a.
CC   -!- The enzymes consists of two domains that are responsible for the 1->2
CC       and 1->3 linkages, respectively.
DR   Q47593, WBDA2_ECOLX;  M4QN28, WBDA_ECOLX ;
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