glycosyltransferases MtfB, WbpX, and similar proteins. This family is most closely related to the GT4 family of glycosyltransferases. MtfB (mannosyltransferase B) in E. coli has been shown to direct the growth of the O9-specific polysaccharide chain. It transfers two mannoses into the position 3 of the previously synthesized polysaccharide.

The glycosyltransferase WecG/TagA superfamily contains Escherichia coli WecG, Bacillus subtilis TagA and related proteins. E. coli WecG is believed to be a UDP-N-acetyl-D-mannosaminuronic acid transferase, and is involved in enterobacterial common antigen (eca) synthesis. B. subtilis TagA plays a key role in the Wall Teichoic Acid (WTA) biosynthetic pathway, catalyzing the transfer of N-acetylmannosamine to the C4 hydroxyl of a membrane-anchored N-acetylglucosaminyl diphospholipid to make ManNAc-beta-(1,4)-GlcNAc-pp-undecaprenyl. This is the first committed step in this pathway. Also included in this group is Xanthomonas campestris pv. campestris GumM, a glycosyltransferase participating in the biosynthesis of the exopolysaccharide xanthan.

Glycosyl transferase WecB/TagA/CpsF family.

UDP-N-acetyl-D-mannosaminuronic acid transferase, WecB/TagA/CpsF family [Cell wall/membrane/envelope biogenesis].

phosphatidyl-myo-inositol mannosyltransferase. This family is most closely related to the GT4 family of glycosyltransferases and named after PimA in Propionibacterium freudenreichii, which is involved in the biosynthesis of phosphatidyl-myo-inositol mannosides (PIM) which are early precursors in the biosynthesis of lipomannans (LM) and lipoarabinomannans (LAM), and catalyzes the addition of a mannosyl residue from GDP-D-mannose (GDP-Man) to the position 2 of the carrier lipid phosphatidyl-myo-inositol (PI) to generate a phosphatidyl-myo-inositol bearing an alpha-1,2-linked mannose residue (PIM1). Glycosyltransferases catalyze the transfer of sugar moieties from activated donor molecules to specific acceptor molecules, forming glycosidic bonds. The acceptor molecule can be a lipid, a protein, a heterocyclic compound, or another carbohydrate residue. This group of glycosyltransferases is most closely related to the previously defined glycosyltransferase family 1 (GT1). The members of this family may transfer UDP, ADP, GDP, or CMP linked sugars. The diverse enzymatic activities among members of this family reflect a wide range of biological functions. The protein structure available for this family has the GTB topology, one of the two protein topologies observed for nucleotide-sugar-dependent glycosyltransferases. GTB proteins have distinct N- and C- terminal domains each containing a typical Rossmann fold. The two domains have high structural homology despite minimal sequence homology. The large cleft that separates the two domains includes the catalytic center and permits a high degree of flexibility. The members of this family are found mainly in certain bacteria and archaea.

ChainA, N-acetylglucosaminyldiphosphoundecaprenol N-acetyl-beta-D-mannosaminyltransferase [Thermoanaerobacter italicus Ab9],7MPK_B Chain B, N-acetylglucosaminyldiphosphoundecaprenol N-acetyl-beta-D-mannosaminyltransferase [Thermoanaerobacter italicus Ab9],7MPK_C Chain C, N-acetylglucosaminyldiphosphoundecaprenol N-acetyl-beta-D-mannosaminyltransferase [Thermoanaerobacter italicus Ab9],7N41_A Chain A, N-acetylglucosaminyldiphosphoundecaprenol N-acetyl-beta-D-mannosaminyltransferase [Thermoanaerobacter italicus Ab9],7N41_B Chain B, N-acetylglucosaminyldiphosphoundecaprenol N-acetyl-beta-D-mannosaminyltransferase [Thermoanaerobacter italicus Ab9],7N41_C Chain C, N-acetylglucosaminyldiphosphoundecaprenol N-acetyl-beta-D-mannosaminyltransferase [Thermoanaerobacter italicus Ab9]

Crystalstructure of the TarA wall teichoic acid glycosyltransferase [Thermoanaerobacter italicus Ab9],5WB4_B Crystal structure of the TarA wall teichoic acid glycosyltransferase [Thermoanaerobacter italicus Ab9],5WB4_C Crystal structure of the TarA wall teichoic acid glycosyltransferase [Thermoanaerobacter italicus Ab9],5WB4_D Crystal structure of the TarA wall teichoic acid glycosyltransferase [Thermoanaerobacter italicus Ab9],5WB4_E Crystal structure of the TarA wall teichoic acid glycosyltransferase [Thermoanaerobacter italicus Ab9],5WB4_F Crystal structure of the TarA wall teichoic acid glycosyltransferase [Thermoanaerobacter italicus Ab9],5WB4_G Crystal structure of the TarA wall teichoic acid glycosyltransferase [Thermoanaerobacter italicus Ab9],5WB4_H Crystal structure of the TarA wall teichoic acid glycosyltransferase [Thermoanaerobacter italicus Ab9]

Crystalstructure of the TarA wall teichoic acid glycosyltransferase bound to UDP [Thermoanaerobacter italicus Ab9],5WFG_B Crystal structure of the TarA wall teichoic acid glycosyltransferase bound to UDP [Thermoanaerobacter italicus Ab9],5WFG_C Crystal structure of the TarA wall teichoic acid glycosyltransferase bound to UDP [Thermoanaerobacter italicus Ab9],5WFG_D Crystal structure of the TarA wall teichoic acid glycosyltransferase bound to UDP [Thermoanaerobacter italicus Ab9],5WFG_E Crystal structure of the TarA wall teichoic acid glycosyltransferase bound to UDP [Thermoanaerobacter italicus Ab9],5WFG_F Crystal structure of the TarA wall teichoic acid glycosyltransferase bound to UDP [Thermoanaerobacter italicus Ab9]

Sucrose-phosphatesynthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_B Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_C Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_D Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_E Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_F Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_G Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_H Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_I Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_J Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_K Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus],6KIH_L Sucrose-phosphate synthase (tll1590) from Thermosynechococcus elongatus [Thermosynechococcus vestitus]

N-acetylglucosaminyldiphosphoundecaprenol N-acetyl-beta-D-mannosaminyltransferase OS=Bacillus spizizenii (strain ATCC 23059 / NRRL B-14472 / W23) OX=655816 GN=tarA PE=3 SV=1

N-acetylglucosaminyldiphosphoundecaprenol N-acetyl-beta-D-mannosaminyltransferase OS=Staphylococcus aureus (strain MRSA252) OX=282458 GN=tarA PE=3 SV=1

N-acetylglucosaminyldiphosphoundecaprenol N-acetyl-beta-D-mannosaminyltransferase OS=Bacillus subtilis (strain 168) OX=224308 GN=tagA PE=1 SV=1

UDP-N-acetyl-D-mannosaminuronic acid transferase OS=Pectobacterium carotovorum subsp. carotovorum (strain PC1) OX=561230 GN=wecG PE=3 SV=1

UDP-N-acetyl-D-mannosaminuronic acid transferase OS=Pectobacterium atrosepticum (strain SCRI 1043 / ATCC BAA-672) OX=218491 GN=wecG PE=3 SV=1