2gdo Summary

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4-(Aminoalkylamino)-3-Benzimidazole-Quinolinones As Potent CHK1 Inhibitors

The structure was published by Ni, Z.J., Barsanti, P., Brammeier, N., et al., Jansen, J.M., Ma, S., and Gesner, T.G., in 2006 in a paper entitled "4-(Aminoalkylamino)-3-benzimidazole-quinolinones as potent CHK-1 inhibitors." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 3.0 Å and deposited in 2006.

The experimental data on which the structure is based was not deposited.

The PDB entry contains the structure of Serine/threonine-protein kinase Chk1. This molecule has the UniProt identifier O14757 (CHK1_HUMAN)search. The sample contained 295 residues which is < 90% of the natural sequence. Out of 295 residues 268 were observed and are deposited in the PDB.

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The molecule is most likely monomeric.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A Serine/threonine-protein kinase Chk1 O14757 (1-289) (CHK1_HUMAN)search Homo sapienssearch < 90% 295 91%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
O14757 (1 - 289) Serine/threonine-protein kinase Chk1 Homo sapiens

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A Protein kinases, catalytic subunitsearch Phosphorylase Kinase; domain 1search, Transferase(Phosphotransferase) domain 1search Protein kinase domainsearch
Chain InterPro annotation
A Protein kinase domainsearch Serine/threonine/dual specificity protein kinase, catalytic domainsearch Serine/threonine-protein kinase, active sitesearch Protein kinase-like domainsearch Protein kinase, ATP binding sitesearch