Pattern PS00533
The following PDB entries contain known "true positive" matches for this PROSITE pattern, or matches that are highly likely to be correct.

1pda  Structure of porphobilinogen deaminase reveals a flexible mu polymerase with a single catalytic site
1ypn  Reduced form hydroxymethylbilane synthase (k59q mutant) crys structure after 2 hours in a flow cell determined by time- r laue diffraction
2ypn  Hydroxymethylbilane synthase