Structure of PDB 2e6d Chain B

Receptor sequence
>2e6dB (length=312) Species: 5693 (Trypanosoma cruzi) [Search protein sequence]
MCLKLNLLDHVFANPFMNAAGVLCSTEEDLRCMTASSSGALVSKSCTSAP
RDGNPEPRYMAFPLGSINSMGLPNLGFDFYLKYASDLHDYSKKPLFLSIS
GLSVEENVAMVRRLAPVAQEKGVLLELNLSCPNVPGKPQVAYDFEAMRTY
LQQVSLAYGLPFGVKMPPYFDIAHFDTAAAVLNEFPLVKFVTCVNSVGNG
LVIDAESESVVIKPKQGFGGLGGKYILPTALANVNAFYRRCPDKLVFGCG
GVYSGEDAFLHILAGASMVQVGTALQEEGPGIFTRLEDELLEIMARKGYR
TLEEFRGRVKTI
3D structure
PDB2e6d Structures of Trypanosoma cruzi dihydroorotate dehydrogenase complexed with substrates and products: atomic resolution insights into mechanisms of dihydroorotate oxidation and fumarate reduction
ChainB
Resolution1.94 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) K43 N67 L71 C130 N132 V133 K164 V193
Catalytic site (residue number reindexed from 1) K44 N68 L72 C131 N133 V134 K165 V194
Enzyme Commision number 1.3.98.1: dihydroorotate oxidase (fumarate).
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 FMN B A18 A19 G20 K43 S44 N67 N127 K164 N194 G221 G222 I225 C248 G249 G250 G271 T272 A19 A20 G21 K44 S45 N68 N128 K165 N195 G222 G223 I226 C249 G250 G251 G272 T273
BS02 FUM B M69 G70 L71 C130 P131 N132 N194 M70 G71 L72 C131 P132 N133 N195
Gene Ontology
Molecular Function
GO:0004152 dihydroorotate dehydrogenase activity
GO:0016491 oxidoreductase activity
GO:0016627 oxidoreductase activity, acting on the CH-CH group of donors
GO:1990663 dihydroorotate dehydrogenase (fumarate) activity
Biological Process
GO:0006207 'de novo' pyrimidine nucleobase biosynthetic process
GO:0006221 pyrimidine nucleotide biosynthetic process
GO:0006222 UMP biosynthetic process
GO:0044205 'de novo' UMP biosynthetic process
Cellular Component
GO:0005737 cytoplasm

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Cellular Component
External links
PDB RCSB:2e6d, PDBe:2e6d, PDBj:2e6d
PDBsum2e6d
PubMed18808149
UniProtQ4D3W2|PYRD_TRYCC Dihydroorotate dehydrogenase (fumarate) (Gene Name=pyr4)

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