1sej is a 5 chain structure with sequence from Cryptosporidium hominis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Cryptosporidium hominis is a protozoan parasite that causes acute gastrointestinal illness. There are no effective therapies for cryptosporidiosis, highlighting the need for new drug-lead discovery. An analysis of the protein-ligand interactions in two crystal structures of dihydrofolate reductase-thymidylate synthase (DHFR-TS) from C. hominis, determined at 2.8 and 2.87 A resolution, reveals that the interactions of residues Ile29, Thr58 and Cys113 in the active site of C. hominis DHFR provide a possible structural basis for the observed antifolate resistance. A comparison with the structure of human DHFR reveals active-site differences that may be exploited for the design of species-selective inhibitors.
Two crystal structures of dihydrofolate reductase-thymidylate synthase from Cryptosporidium hominis reveal protein-ligand interactions including a structural basis for observed antifolate resistance.,Anderson AC Acta Crystallogr Sect F Struct Biol Cryst Commun. 2005 Mar 1;61(Pt, 3):258-62. Epub 2005 Feb 8. PMID:16511011[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
↑ Anderson AC. Two crystal structures of dihydrofolate reductase-thymidylate synthase from Cryptosporidium hominis reveal protein-ligand interactions including a structural basis for observed antifolate resistance. Acta Crystallogr Sect F Struct Biol Cryst Commun. 2005 Mar 1;61(Pt, 3):258-62. Epub 2005 Feb 8. PMID:16511011 doi:10.1107/S1744309105002435
