>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=97.71  E-value=4.9e-05  Score=52.00  Aligned_cols=34  Identities=15%  Similarity=0.181  Sum_probs=14.2

Q ss_pred             EEECCCCEECCCCEECCCCEECCCCEECCCCEEC
Q ss_conf             0888985998898995655988998998898986
Q gi|255764481|r   14 ALVEEGAVIGPNSLIGPFCCVGSEVEIGAGVELI   47 (271)
Q Consensus        14 A~I~~~a~Ig~~v~Igp~~~I~~~v~IG~~~~I~   47 (271)
T Consensus       255 s~i~GRV~v~~gakid~ns~i~GPa~IG~d~~I~  288 (361)
T TIGR01208       255 SKIEGRVEVGEGAKIDVNSVIRGPAVIGEDCIIE  288 (361)
T ss_pred             CEEEEEEEECCCCEECCCCEEECCEEECCCCEEE
T ss_conf             5788407908978842377787060877952782