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4IAC

X-RAY structure of cAMP dependent protein kinase A in complex with HIGH MG2+ concentration, AMP-PCP AND pseudo-substrate peptide SP20

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
cAMP-dependent protein kinase catalytic subunit alphapolymer35641566.21UniProt (P05132)
Pfam (PF00069)
Mus musculus (mouse)PKA C-alpha
2B
(S)
Peptide SP20polymer202199.41UniProt (by SIFTS) (P61925)Homo sapiens
3C, D
(A)
MAGNESIUM IONnon-polymer24.32Chemie (MG)
4E
(A)
PHOSPHOMETHYLPHOSPHONIC ACID ADENYLATE ESTERnon-polymer505.21Chemie (ACP)
5F, G
(A, S)
waterwater18.0339Chemie (HOH)
Sequence modifications
A: 1 - 350 (UniProt: P05132)
PDBExternal DatabaseDetails
His -5-expression tag
His -4-expression tag
His -3-expression tag
His -2-expression tag
His -1-expression tag
His 0-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight43765.6
Non-Polymers*Number of molecules3
Total formula weight553.8
All*Total formula weight44319.4
*Water molecules are not included.

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PDB entries from 2025-06-11

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