Crystal structure of Mycobacterium tuberculosis 7,8-dihydropteroate synthase in complex with pterin monophosphate: new insight into the enzymatic mechanism and sulfa-drug action.
Baca, A.M., Sirawaraporn, R., Turley, S., Sirawaraporn, W., Hol, W.G.(2000) J Mol Biol 302: 1193-1212
- PubMed: 11007651 
- DOI: 10.1006/jmbi.2000.4094
- Primary Citation of Related Structures:  
1EYE - PubMed Abstract: 
The enzyme 7,8-dihydropteroate synthase (DHPS) catalyzes the condensation of para-aminobenzoic acid (pABA) with 6-hydroxymethyl-7, 8-dihydropterin-pyrophosphate to form 7,8-dihydropteroate and pyrophosphate. DHPS is essential for the de novo synthesis of folate in prokaryotes, lower eukaryotes, and in plants, but is absent in mammals ...