H

Thiamine biosynthesis protein ThiS
Thiazole synthase
Thiamine-phosphate synthase
Probable nicotinate-nucleotide adenylyltransferase
Pyridoxine 5'-phosphate synthase
Porphobilinogen deaminase
L-aspartate oxidase
Quinolinate synthetase complex, subunit A
Nicotinate-nucleotide pyrophosphorylase
3,4-dihydroxy-2-butanone 4-phosphate synthase