Structural highlights 
  Function 
[THIDN_METJA] Catalyzes the phosphorylation of hydroxymethylpyrimidine phosphate (HMP-P) to HMP-PP, and of HMP to HMP-P.  Condenses 4-methyl-5-(beta-hydroxyethyl)thiazole monophosphate (THZ-P) and 4-amino-5-hydroxymethyl pyrimidine pyrophosphate (HMP-PP) to form thiamine monophosphate (TMP). 
  Evolutionary Conservation 
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.