ISDA

Entry Detail

PDB ID:

3MWU

Keywords:

Title:

Activated Calcium-Dependent Protein Kinase 1 from Cryptosporidium parvum (CpCDPK1) in complex with bumped kinase inhibitor RM-1-95

Biological Source:

Source Organism:

Cryptosporidium parvum

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2010-05-06

Release Date:

2010-07-21

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.98 Å

R-Value Free:

0.22

R-Value Work:

0.19

R-Value Observed:

0.19

Space Group:

P 1 21 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Calmodulin-domain protein kinase 1
Mutations:N-terminal 69 residues replaced with His tag and linker
Chain IDs:A
Chain Length:486
Number of Molecules:1
Biological Source:Cryptosporidium parvum

UniProt ID:A3FQ16 Pfam ID:PF00069, PF13499

Ligand Molecules

BK3

Primary Citation

Discovery of Potent and Selective Inhibitors of Calcium-Dependent Protein Kinase 1 (CDPK1) from C. parvum and T. gondii.

Murphy, R.C, Ojo, K.K, Larson, E.T, Castellanos-Gonzalez, A, Perera, B.G, Keyloun, K.R, Kim, J.E, Bhandari, J.G, Muller, N.R, Verlinde, C.L, White, A.C, Merritt, E.A, Van Voorhis, W.C, Maly, D.J, Ojo, K.K, Larson, E.T, Keyloun, K.R, Castaneda, L.J, Derocher, A.E, Inampudi, K.K, Kim, J.E, Arakaki, T.L, Murphy, R.C, Zhang, L, Napuli, A.J, Maly, D.J, Verlinde, C.L, Buckner, F.S, Parsons, M, Hol, W.G, Merritt, E.A, Van Voorhis, W.C.Show

ACS Med Chem Lett 1 331 335 (2010)

PMID: 21116453 DOI: 10.1021/ml100096t

Abstact

The protozoans Cryptosporidium parvum and Toxoplasma gondii are parasites of major health concern to humans. Both parasites contain a group of calcium-dependent protein kinases (CDPKs), which are found in plants and ciliates but not in humans or fungi. Here we describe a series of potent inhibitors that target CDPK1 in C. parvum (CpCDPK1) and T. gondii (TgCDPK1). These inhibitors are highly selective for CpCDPK1 and TgCDPK1 over the mammalian kinases SRC and ABL. Furthermore, they are able to block an early stage of C. parvum invasion of HCT-8 host cells, which is similar to their effects on T. gondii invasion of human fibroblasts.

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