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2Y9Q

Crystal structure of human ERK2 complexed with a MAPK docking peptide

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
MITOGEN-ACTIVATED PROTEIN KINASE 1polymer36241588.81UniProt (P28482)
Pfam (PF00069)
HOMO SAPIENS (HUMAN)MAP KINASE 1, MAPK 1, ERT1, EXTRACELLULAR SIGNAL-REGULATED KINASE 2, ERK-2, MAP KINASE ISOFORM P42, P42-MAPK, MITOGEN-ACTIVATED PROTEIN KINASE 2, MAP KINASE 2, MAPK 2, ERK2
2B
(B)
MAP KINASE-INTERACTING SERINE/THREONINE-PROTEIN KINASE 1polymer182044.51UniProt (Q9BUB5)HOMO SAPIENSMAP KINASE SIGNAL-INTEGRATING KINASE 1, MNK1
3C
(A)
PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTERnon-polymer506.21Chemie (ANP)
4D, E
(A, B)
waterwater18.0546Chemie (HOH)
Sequence modifications
A: 1 - 360 (UniProt: P28482)
PDBExternal DatabaseDetails
Gly -1-expression tag
Ser 0-expression tag
B: 434 - 451 (UniProt: Q9BUB5)
PDBExternal DatabaseDetails
Ser 440Cys 440engineered mutation
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight43633.3
Non-Polymers*Number of molecules1
Total formula weight506.2
All*Total formula weight44139.5
*Water molecules are not included.

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PDB entries from 2025-07-30

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