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2XM9

Structure of a small molecule inhibitor with the kinase domain of Chk2

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
SERINE/THREONINE-PROTEIN KINASE CHK2polymer32937111.81UniProt (O96017)
Pfam (PF00069)
HOMO SAPIENS (HUMAN)CDS1, CHECKPOINT KINASE 2
2B
(A)
4-(1H-pyrazol-5-yl)-2-{4-[(3S)-pyrrolidin-3-ylamino]quinazolin-2-yl}phenolnon-polymer372.41Chemie (LWH)
3C
(A)
NITRATE IONnon-polymer62.01Chemie (NO3)
4D
(A)
waterwater18.0153Chemie (HOH)
Sequence modifications
A: 210 - 531 (UniProt: O96017)
PDBExternal DatabaseDetails
Gly 203-expression tag
Pro 204-expression tag
Leu 205-expression tag
Gly 206-expression tag
Ser 207-expression tag
His 208-expression tag
Met 209-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight37111.8
Non-Polymers*Number of molecules2
Total formula weight434.4
All*Total formula weight37546.3
*Water molecules are not included.

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PDB entries from 2025-07-23

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