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3NXR

Perferential Selection of Isomer Binding from Chiral Mixtures: Alternate Binding Modes Observed for the E- and Z-isomers of a Series of 5-Substituted 2,4-Diaminofuro[2,3-d]pyrimidines as Ternary Complexes with NADPH and Human Dihydrofolate Reductase

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Dihydrofolate reductasepolymer18621349.51UniProt (P00374)
Pfam (PF00186)
Homo sapiens (human)
2B
(A)
NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATEnon-polymer745.41Chemie (NDP)
3C, D, E, F
(A)
SULFATE IONnon-polymer96.14Chemie (SO4)
4G
(A)
5-[(1E)-2-(2-methoxyphenyl)-4-methylpent-1-en-1-yl]furo[2,3-d]pyrimidine-2,4-diaminenon-polymer338.41Chemie (D2D)
5H
(A)
waterwater18.0184Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight21349.5
Non-Polymers*Number of molecules6
Total formula weight1468.1
All*Total formula weight22817.6
*Water molecules are not included.

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PDB entries from 2025-06-18

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