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6HRB

Cryo-EM structure of the KdpFABC complex in an E2 inward-facing state (state 2)

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Potassium-transporting ATPase potassium-binding subunitpolymer55759218.61UniProt (P03959)
Pfam (PF03814)
Escherichia coli (strain K12)ATP phosphohydrolase [potassium-transporting] A chain,Potassium-binding and translocating subunit A,Potassium-translocating ATPase A chain
2B
(B)
Potassium-transporting ATPase ATP-binding subunitpolymer68272347.81UniProt (P03960)
Pfam (PF00122)
Pfam (PF00702)
Escherichia coli (strain K12)ATP phosphohydrolase [potassium-transporting] B chain,Potassium-binding and translocating subunit B,Potassium-translocating ATPase B chain
3C
(C)
Potassium-transporting ATPase KdpC subunitpolymer19020281.01UniProt (P03961)
Pfam (PF02669)
Escherichia coli (strain K12)ATP phosphohydrolase [potassium-transporting] C chain,Potassium-binding and translocating subunit C,Potassium-translocating ATPase C chain
4D
(D)
Potassium-transporting ATPase KdpF subunitpolymer293071.71UniProt (P36937)
Pfam (PF09604)
Escherichia coli (strain K12)ATP phosphohydrolase [potassium-transporting] F chain,Potassium-binding and translocating subunit F,Potassium-translocating ATPase F chain
5E
(A)
POTASSIUM IONnon-polymer39.11Chemie (K)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains4
Total formula weight154919.2
Non-Polymers*Number of molecules1
Total formula weight39.1
All*Total formula weight154958.3
*Water molecules are not included.

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PDB entries from 2025-12-24

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