>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=97.72  E-value=6.3e-05  Score=51.30  Aligned_cols=51  Identities=25%  Similarity=0.406  Sum_probs=28.0

Q ss_pred             CEECCCCEECCCCEECCCCEECCCCEEEEEEECCCCC-EEEECCCCCCCCCCCCCCCCCCCCCCC
Q ss_conf             5988998998898986686891684686553114342-232102333122222233222222212
Q gi|255764481|r   32 CCVGSEVEIGAGVELISHCVVAGKTKIGDFTKVFPMA-VLGGDTQSKYHNFVGTELLVGKKCVIR   95 (271)
Q Consensus        32 ~~I~~~v~IG~~~~I~~~v~I~g~t~IG~~~~I~~~a-~Ig~~~qd~~~~g~~~~v~IG~~~~Ir   95 (271)
T Consensus       255 s~i~GRV~v~~gakid~ns~i~GPa~IG~d~~I~-nsGyiGP------------YtSig~~~~I~  306 (361)
T TIGR01208       255 SKIEGRVEVGEGAKIDVNSVIRGPAVIGEDCIIE-NSGYIGP------------YTSIGEGVVIR  306 (361)
T ss_pred             CEEEEEEEECCCCEECCCCEEECCEEECCCCEEE-CCCCCCC------------EEEECCCEEEE
T ss_conf             5788407908978842377787060877952782-6861177------------07725753874