Structure of PDB 1j3k Chain C

Receptor sequence
>1j3kC (length=326) Species: 5833 (Plasmodium falciparum) [Search protein sequence]
DDEEEDDFVYFNFNKEKEEKNKNSIHPNDFQIYNSLKYKYHPEYQYLNII
YDIMMNGNKQSDRTGVGVLSKFGYIMKFDLSQYFPLLTTKKLFLRGIIEE
LLWFIRGETNGNTLLNKNVRIWEANGTREFLDNRKLFHREVNDLGPIYGF
QWRHFGAEYTNMYDNYENKGVDQLKNIINLIKNDPTSRRILLCAWNVKDL
DQMALPPCHILCQFYVFDGKLSCIMYQRSCDLGLGVPFNIASYSIFTHMI
AQVCNLQPAQFIHVLGNAHVYNNHIDSLKIQLNRIPYPFPTLKLNPDIKN
IEDFTISDFTIQNYVHHEKISMDMAA
3D structure
PDB1j3k Insights into antifolate resistance from malarial DHFR-TS structures.
ChainC
Resolution2.1 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) E382 W404 Y430 C490 R510 D513
Catalytic site (residue number reindexed from 1) E100 W122 Y148 C208 R228 D231
Enzyme Commision number 1.5.1.3: dihydrofolate reductase.
2.1.1.45: thymidylate synthase.
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 UMP C R345 C490 H491 Q509 R510 S511 D513 N521 H551 Y553 R63 C208 H209 Q227 R228 S229 D231 N239 H269 Y271
BS02 UMP C R470 R471 R188 R189
Gene Ontology
Molecular Function
GO:0004799 thymidylate synthase activity
GO:0016741 transferase activity, transferring one-carbon groups
Biological Process
GO:0006231 dTMP biosynthetic process

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Molecular Function
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Biological Process
External links
PDB RCSB:1j3k, PDBe:1j3k, PDBj:1j3k
PDBsum1j3k
PubMed12704428
UniProtP13922|DRTS_PLAFK Bifunctional dihydrofolate reductase-thymidylate synthase

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