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6CQA

E. coli DHFR complex with inhibitor AMPQD

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Dihydrofolate reductasepolymer16518848.21UniProt (P0ABQ4)
Pfam (PF00186)
Escherichia coli
2B, C
(A)
SULFATE IONnon-polymer96.12Chemie (SO4)
3D
(A)
7-[(3-aminophenyl)methyl]-7H-pyrrolo[3,2-f]quinazoline-1,3-diaminenon-polymer304.31Chemie (PQD)
4E
(A)
waterwater18.039Chemie (HOH)
Sequence modifications
A: 1 - 159 (UniProt: P0ABQ4)
PDBExternal DatabaseDetails
His 160-expression tag
His 161-expression tag
His 162-expression tag
His 163-expression tag
His 164-expression tag
His 165-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight18848.2
Non-Polymers*Number of molecules3
Total formula weight496.5
All*Total formula weight19344.7
*Water molecules are not included.

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PDB entries from 2025-06-18

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