ISDA: 35WG

Deposition Date 2026-05-20

Release Date 2026-08-05

Last Version Date 2026-08-05

Entry Detail

PDB ID:

35WG

Keywords:

CELL CYCLE

Title:

Crystal structure of CHK1 in complex with BBI-355

Biological Source:

Source Organism(s):

Homo sapiens (Taxon ID: 9606)

Expression System(s):

Spodoptera frugiperda

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.97 Å

R-Value Free:

0.20

R-Value Work:

0.16

R-Value Observed:

0.16

Space Group:

P 1 21 1

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Macromolecular Entities

Structures with similar UniProt ID

Structural Superimposition Protein Blast

Polymer Type:polypeptide(L)
Molecule:Serine/threonine-protein kina
Gene (Uniprot):CHEK1
Chain IDs:A
Chain Length:280
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:O14757 Pfam ID:PF00069 EC:2.7.11.1

Ligand Molecules

A1DNI

EDO

Primary Citation

Discovery of BBI-355, a Potent, Selective, and Orally Available Checkpoint Kinase 1 Inhibitor for the Treatment of Extrachromosomal DNA Oncogene-Amplified Cancers.

Meyer, S.T, Chowdhry, S, Elsdon, R.J, Mauger, J, Truong, Y.P.H, Hansen, R, Plum, J, Steffy, A, Pferdekamper, A, Norman, B, Garcia, S, Tse, E, Apuy, J, Ardeshiri, A, Kasibhatla, S, Hassig, C.A, Pinkerton, A.B.Show

J.Med.Chem. ? ? ? (2026)

PMID: 42457651 DOI: 10.1021/acs.jmedchem.6c00822

Primary Citation of related structures

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