>TIGR01208 rmlA_long glucose-1-phosphate thymidylyltransferase; InterPro: IPR005908 Synonym: dTDP-D-glucose synthase This group of proteins comprises a tightly conserved but broadly distributed subfamily of known and putative bacterial glucose-1-phosphate thymidylyltransferases (2.7.7.24 from EC). It is well characterised in several species as the first of four enzymes involved in the biosynthesis of dTDP-L-rhamnose, a cell wall constituent and a feedback inhibitor of the enzyme. dTTP + alpha-D-glucose 1-phosphate = diphosphate + dTDP-glucose The family of known and putative glucose-1-phosphate thymidyltransferases shows a deep split into a short form (see IPR005907 from INTERPRO) and a long form described by this model. The homotetrameric short form is found in numerous bacterial species that incorporate dTDP-L-rhamnose, which it helps synthesize, into the cell wall. It is subject to feedback inhibition. The long form, in contrast, is found in many species for which it serves as a sugar-activating enzyme for antibiotic biosynthesis and or other, unknown pathways, and in which dTDP-L-rhamnose is not necessarily produced. .

Probab=97.36  E-value=0.0003  Score=34.22  Aligned_cols=52  Identities=12%  Similarity=0.213  Sum_probs=19.1

Q ss_pred             EEECCCEEECCCCEECCCCEECCCCCCCCCCCCCCCCCEEEEEEEECCCCCC
Q ss_conf             6988970992883997981545754323112222222100113552022111
Q gi|254781223|r    5 AVVRDCATVIDDARVSGNASVSRFAQVKSNAEVSDNTYVRDNAKVGGYAKVS   56 (110)
Q Consensus         5 ~~I~~~a~I~~~~~I~~n~~I~~~~~i~~~~~i~~~~~i~~~~~i~~~~~i~   56 (110)
T Consensus       255 s~i~GRV~v~~gakid~ns~i~GPa~IG~d~~I~nsGyiGPYtSig~~~~I~  306 (361)
T TIGR01208       255 SKIEGRVEVGEGAKIDVNSVIRGPAVIGEDCIIENSGYIGPYTSIGEGVVIR  306 (361)
T ss_pred             CEEEEEEEECCCCEECCCCEEECCEEECCCCEEECCCCCCCEEEECCCEEEE
T ss_conf             5788407908978842377787060877952782686117707725753874