ISDA

Deposition Date 2005-02-04

Release Date 2005-04-12

Last Version Date 2023-08-23

Entry Detail

PDB ID:

1YRS

Keywords:

CELL CYCLE

Title:

Crystal structure of KSP in complex with inhibitor 1

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli BL21(DE3)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.50 Å

R-Value Free:

0.31

R-Value Work:

0.25

R-Value Observed:

0.25

Space Group:

P 21 21 21

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Kinesin-like protein KIF11
Gene (Uniprot):KIF11
Chain IDs:A, B
Chain Length:368
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:P52732 Pfam ID:PF00225 EC:5.6.1.3

Ligand Molecules

ADP

L47

Primary Citation

Kinesin spindle protein (KSP) inhibitors. Part 1: The discovery of 3,5-diaryl-4,5-dihydropyrazoles as potent and selective inhibitors of the mitotic kinesin KSP

Cox, C.D, Breslin, M.J, Mariano, B.J, Coleman, P.J, Buser, C.A, Walsh, E.S, Hamilton, K, Huber, H.E, Kohl, N.E, Torrent, M, Yan, Y, Kuo, L.C, Hartman, G.D.Show

BIOORG.MED.CHEM.LETT. 15 2041 2045 (2005)

PMID: 15808464 DOI: 10.1016/j.bmcl.2005.02.055

Abstact

Optimization of high-throughput screening (HTS) hits resulted in the discovery of 3,5-diaryl-4,5-dihydropyrazoles as potent and selective inhibitors of KSP. Dihydropyrazole 15 is a potent, cell-active KSP inhibitor that induces apoptosis and generates aberrant mitotic spindles in human ovarian carcinoma cells at low nanomolar concentrations. X-ray crystallographic evidence is presented which demonstrates that these inhibitors bind in an allosteric pocket of KSP distant from the nucleotide and microtubule binding sites.

Legend

Protein

Chemical

Disease

Primary Citation of related structures