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4MQ1

The crystal structure of DYRK1a with a bound pyrido[2,3-d]pyrimidine inhibitor

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B, C, D
(A, B, C, D)
Dual specificity tyrosine-phosphorylation-regulated kinase 1Apolymer36142081.54UniProt (Q13627)
Pfam (PF00069)
Homo sapiens (human)Dual specificity YAK1-related kinase, HP86, Protein kinase minibrain homolog, MNBH, hMNB
2E, J, O, S
(A, B, C, D)
N-(5-{[(1R)-3-amino-1-(3-chlorophenyl)propyl]carbamoyl}-2-chlorophenyl)-2-methoxy-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidine-6-carboxamidenon-polymer541.44Chemie (2C3)
3F, G, K, L, P...
(A, B, C, D)
PENTAETHYLENE GLYCOLnon-polymer238.36Chemie (1PE)
4H, I, M, N, Q...
(A, B, C, D)
SULFATE IONnon-polymer96.18Chemie (SO4)
5W, X, Y, Z
(A, B, C, D)
waterwater18.0470Chemie (HOH)
Sequence modifications
A, B, C, D: 127 - 485 (UniProt: Q13627)
PDBExternal DatabaseDetails
Ser 125-expression tag
Met 126-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains4
Total formula weight168326.1
Non-Polymers*Number of molecules18
Total formula weight4363.7
All*Total formula weight172689.9
*Water molecules are not included.

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PDB entries from 2025-06-18

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