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1RH3

DIHYDROFOLATE REDUCTASE COMPLEXED WITH METHOTREXATE AND NICOTINAMIDE ADENINE DINUCLEOTIDE PHOSPHATE (REDUCED FORM)

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
DIHYDROFOLATE REDUCTASEpolymer15918020.31UniProt (P0ABQ4)
Pfam (PF00186)
Escherichia coliDHFR
2B
(A)
METHOTREXATEnon-polymer454.41Chemie (MTX)
3C
(A)
NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATEnon-polymer743.41Chemie (NAP)
4D
(A)
waterwater18.032Chemie (HOH)
Sequence modifications
A: 1 - 159 (UniProt: P0ABQ4)
PDBExternal DatabaseDetails
Asp 37Asn 37conflict
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight18020.3
Non-Polymers*Number of molecules2
Total formula weight1197.8
All*Total formula weight19218.2
*Water molecules are not included.

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PDB entries from 2025-06-18

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