Decaprenyl-phosphate N-acetylglucosaminephosphotransferase; Involved in the biosynthesis of the disaccharide D-N- acetylglucosamine-L-rhamnose which plays an important role in the mycobacterial cell wall as a linker connecting arabinogalactan and peptidoglycan via a phosphodiester linkage. Catalyzes the transfer of the N-acetylglucosamine-1-phosphate (GlcNAc-1P) moiety from UDP-GlcNAc onto the carrier lipid decaprenyl phosphate (C50-P), yielding GlcNAc- pyrophosphoryl-decaprenyl (GlcNAc-PP-C50).

UDP-galactofuranosyl transferase GlfT1; Involved in the biosynthesis of the arabinogalactan (AG) region of the mycolylarabinogalactan-peptidoglycan (mAGP) complex, an essential component of the mycobacterial cell wall. Catalyzes the transfer of the first two galactofuranosyl (Galf) units from UDP- galactofuranose (UDP-Galf) onto the rhamnosyl-GlcNAc-diphospho- decaprenol (Rha-GlcNAc-PP-C50) acceptor, yielding galactofuranosyl- galactofuranosyl-rhamnosyl-GlcNAc-diphospho-decaprenol (Galf-Galf-Rha- GlcNAc-PP-C50). Thus, GlfT1 is the initiator of galactan synthesis, while GlfT2 continues [...]

dTDP-4-dehydrorhamnose 3,5-epimerase; Catalyzes the epimerization of the C3' and C5'positions of dTDP-6-deoxy-D-xylo-4-hexulose, forming dTDP-6-deoxy-L-lyxo-4-hexulose. Involved in the biosynthesis of the dTDP-L-rhamnose which is a component of the critical linker, D-N-acetylglucosamine-L-rhamnose disaccharide, which connects the galactan region of arabinogalactan to peptidoglycan via a phosphodiester linkage.

Rv3267, (MTCY71.07), len: 498 aa. Conserved protein,CPSA-related protein, equivalent to Q9CCK9|ML0750 hypothetical protein from Mycobacterium leprae (489 aa),FASTA scores: opt: 2523, E(): 5e-138, (78.9% identity in 498 aa overlap); and Q50160|CPSA (hypothetical protein CPSA) from Mycobacterium leprae (516 aa), FASTA scores: opt: 868, E(): 1.2e-42, (34.7% identity in 507 aa overlap). Also similar to O06347|CPSA|Rv3484|MTCY13E12.37 CPSA from Mycobacterium tuberculosis (512 aa), FASTA scores: opt: 928, E(): 4.2e-46, (37.35% identity in 498 aa overlap); and O53834|Rv0822c|MTV043.14c hypoth [...]

dTDP-glucose 4,6-dehydratase RmlB; Catalyzes the dehydration of dTDP-D-glucose to form dTDP-6- deoxy-D-xylo-4-hexulose via a three-step process involving oxidation, dehydration and reduction (By similarity). Involved in the biosynthesis of the dTDP-L-rhamnose which is a component of the critical linker, D- N-acetylglucosamine-L-rhamnose disaccharide, which connects the galactan region of arabinogalactan to peptidoglycan via a phosphodiester linkage.

Rv3783, (MTCY13D12.17), len: 280 aa. Probable rfbD,polysaccharide-transport integral membrane protein ABC transporter (see Braibant et al., 2000), involved in O-antigen/lipopolysaccharides (LPS) transport, equivalent to Q9CDA2|ML0112 putative ABC transporter component from Mycobacterium leprae (276 aa), FASTA scores: opt: 1646,E(): 4e-102, (84.3% identity in 280 aa overlap). Also highly similar to Q9PAF1|XF2567 ABC transporter permease protein from Xylella fastidiosa (267 aa), FASTA scores: opt: 723, E(): 7.6e-41, (41.3% identity in 259 aa overlap); and similar to others e.g. Q56902|RF [...]

Mannose-1-phosphate guanylyltransferase ManB; Rv3264c, (MTCY71.04c), len: 359 aa. ManB (alternate gene name: hddC), D-alpha-D-mannose-1-phosphate guanylyltransferase (see citations below), equivalent to Q9CCK6|RMLA2|ML0753 putative sugar-phosphate nucleotidyl transferase from Mycobacterium leprae (358 aa), FASTA scores: opt: 2075, E(): 2.7e-115, (86.9% identity in 359 aa overlap). Also similar to others e.g. Q9KZK6|SCE34.20c putative nucleotide phosphorylase from Streptomyces coelicolor (360 aa), FASTA scores: opt: 1314, E(): 2.2e-70,(57.0% identity in 358 aa overlap); Q9KZP4|SC1A8A.08 [...]

Glucose-1-phosphate thymidylyltransferase; Catalyzes the formation of dTDP-glucose, from dTTP and glucose 1-phosphate, as well as its pyrophosphorolysis. Involved in the biosynthesis of the dTDP-L-rhamnose which is a component of the critical linker, D-N-acetylglucosamine-L-rhamnose disaccharide, which connects the galactan region of arabinogalactan to peptidoglycan via a phosphodiester linkage; Belongs to the glucose-1-phosphate thymidylyltransferase family.

Rv3781, (MTCY13D12.15), len: 273 aa. Probable rfbE,polysaccharide-transport ATP-binding protein ABC transporter, involved in O-antigen/lipopolysaccharides (LPS) transport (see Braibant et al., 2000), equivalent to Q9CDA0|ML0114 putative ABC transporter ATP-binding component from Mycobacterium leprae (272 aa), FASTA scores: opt: 1581, E(): 3e-83, (91.4% identity in 267 aa overlap). Also highly similar to AAK71283 LPS/O-antigen export permease from Coxiella burnetii (258 aa), FASTA scores: opt: 793, E(): 2.5e-38, (45.45% identity in 253 aa overlap); Q9PAF0|XF2568 ABC transporter ATP-bind [...]