Protein alignment indicating the similarities between the A. niger Tpp proteins. Boxed amino acids are either identical or similar in at least two of the aligned sequences. Approximated borders of the phosphate synthase (closer to the N-terminal) and the phosphatase (closer to the C-terminal) domains are indicated in the figure.
Svanström et al. BMC Microbiology 2014 14:90 doi:10.1186/1471-2180-14-90