ISDA

Deposition Date 2012-01-24

Release Date 2012-04-25

Last Version Date 2024-02-28

Entry Detail

PDB ID:

4DFN

Keywords:

TRANSFERASE/TRANSFERASE INHIBITOR

Title:

Crystal structure of spleen tyrosine kinase complexed with an adamantylpyrazine inhibitor

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.48 Å

R-Value Free:

0.27

R-Value Work:

0.21

R-Value Observed:

0.22

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Tyrosine-protein kinase SYK
Gene (Uniprot):SYK
Chain IDs:A
Chain Length:274
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P43405 Pfam ID:PF07714 EC:2.7.10.2

Ligand Molecules

0K1

Primary Citation

Pyrazine-based Syk kinase inhibitors.

Forns, P, Esteve, C, Taboada, L, Alonso, J.A, Orellana, A, Maldonado, M, Carreno, C, Ramis, I, Lopez, M, Miralpeix, M, Vidal, B.Show

Bioorg.Med.Chem.Lett. 22 2784 2788 (2012)

PMID: 22425453 DOI: 10.1016/j.bmcl.2012.02.087

Abstact

A series of aminopyrazines as inhibitors of Syk kinase activity and showing inhibition of LAD2 cells degranulation is described. Optimization of the carboxamide motif with aminomethylpiperidines provided high potency inhibiting Syk but low cellular activity. Amides of cis and trans adamantanol showed good inhibitory activity against Syk as well as remarkable activity in LAD2 cells degranulation assay.

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Primary Citation of related structures