Robuta

https://www.ncbi.nlm.nih.gov/Structure/pdb/1KBR 1KBR: CRYSTAL STRUCTURE OF UNLIGATED HPPK(R92A) FROM E.COLI AT 1.55 ANGSTROM RESOLUTION 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN PYROPHOSPHOKINASECHLORIDE ION