ISDA

Deposition Date 2013-08-12

Release Date 2013-10-02

Last Version Date 2023-09-20

Entry Detail

PDB ID:

4M84

Keywords:

TRANSFERASE/TRANSFERASE INHIBITOR

Title:

Calcium-Dependent Protein Kinase 1 from Toxoplasma gondii (TgCDPK1) in complex with inhibitor UW1455

Biological Source:

Source Organism:

Toxoplasma gondii (Taxon ID: 5811)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.00 Å

R-Value Free:

0.25

R-Value Work:

0.19

R-Value Observed:

0.20

Space Group:

P 1 21 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Calmodulin-domain protein kinase 1
Gene (Uniprot):CDPK1
Chain IDs:A
Chain Length:484
Number of Molecules:1
Biological Source:Toxoplasma gondii

UniProt ID:Q9BJF5 Pfam ID:PF00069, PF13499

Ligand Molecules

21E

Primary Citation

Potent and selective inhibitors of CDPK1 from T. gondii and C. parvum based on a 5-aminopyrazole-4-carboxamide scaffold.

Zhang, Z, Ojo, K.K, Vidadala, R, Huang, W, Geiger, J.A, Scheele, S, Choi, R, Reid, M.C, Keyloun, K.R, Rivas, K, Siddaramaiah, L.K, Comess, K.M, Robinson, K.P, Merta, P.J, Kifle, L, Hol, W.G, Parsons, M, Merritt, E.A, Maly, D.J, Verlinde, C.L, Van Voorhis, W.C, Fan, E, 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, Larson, E.T, Ojo, K.K, Murphy, R.C, Johnson, S.M, Zhang, Z, Kim, J.E, Leibly, D.J, Fox, A.M, Reid, M.C, Dale, E.J, Perera, B.G, Kim, J, Hewitt, S.N, Hol, W.G, Verlinde, C.L, Fan, E, Van Voorhis, W.C, Maly, D.J, Merritt, E.A.Show

ACS Med Chem Lett 5 40 44 (2014)

PMID: 24494061 DOI: 10.1021/ml400315s

Abstact

5-Aminopyrazole-4-carboxamide was used as an alternative scaffold to substitute for the pyrazolopyrimidine of a known "bumped kinase inhibitor" to create selective inhibitors of calcium-dependent protein kinase-1 from both Toxoplasma gondii and Cryptosporidium parvum. Compounds with low nanomolar inhibitory potencies against the target enzymes were obtained. The most selective inhibitors also exhibited submicromolar activities in T. gondii cell proliferation assays and were shown to be non-toxic to mammalian cells.

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Primary Citation of related structures