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3FJQ

Crystal structure of cAMP-dependent protein kinase catalytic subunit alpha in complex with peptide inhibitor PKI alpha (6-25)

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(E)
cAMP-dependent protein kinase catalytic subunit alphapolymer35040657.31UniProt (P05132)
Pfam (PF00069)
Mus musculus (mouse)PKA C-alpha
2B
(I)
cAMP-dependent protein kinase inhibitor alphapolymer202226.41UniProt (P63248)Mus musculus (mouse)cAMP-dependent protein kinase inhibitor, muscle/brain isoform, PKI-alpha
3C, D
(E)
MANGANESE (II) IONnon-polymer54.92Chemie (MN)
4E
(E)
ADENOSINE-5'-TRIPHOSPHATEnon-polymer507.21Chemie (ATP)
5F, G
(E, I)
waterwater18.0394Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight42883.7
Non-Polymers*Number of molecules3
Total formula weight617.1
All*Total formula weight43500.8
*Water molecules are not included.

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PDB entries from 2025-06-11

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