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2P55

X-ray structure of the human mitogen-activated protein kinase kinase 1 (MEK1) in a complex with ligand and MgATP

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Dual specificity mitogen-activated protein kinase kinase 1polymer33336859.51UniProt (Q02750)
Pfam (PF00069)
Homo sapiens (human)MAP kinase kinase 1, MAPKK 1, ERK activator kinase 1, MAPK/ERK kinase 1, MEK1
2B
(A)
MAGNESIUM IONnon-polymer24.31Chemie (MG)
3C
(A)
2-[(4-ETHYNYL-2-FLUOROPHENYL)AMINO]-3,4-DIFLUORO-N-(2-HYDROXYETHOXY)BENZAMIDEnon-polymer350.31Chemie (MRA)
4D
(A)
ADENOSINE-5'-TRIPHOSPHATEnon-polymer507.21Chemie (ATP)
5E
(A)
waterwater18.038Chemie (HOH)
Sequence modifications
A: 62 - 393 (UniProt: Q02750)
PDBExternal DatabaseDetails
Met 61-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight36859.5
Non-Polymers*Number of molecules3
Total formula weight881.8
All*Total formula weight37741.2
*Water molecules are not included.

246905

PDB entries from 2025-12-31

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