3SRV

Crystal structure of spleen tyrosine kinase (SYK) in complex with a diaminopyrimidine carboxamide inhibitor

PDB DOI: https://doi.org/10.2210/pdb3SRV/pdb

Classification: TRANSFERASE/TRANSFERASE INHIBITOR
Organism(s): Homo sapiens
Expression System: Spodoptera frugiperda
Mutation(s): No

Deposited: 2011-07-07 Released: 2011-09-21
Deposition Author(s): Somers, D.O., Neu, M.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.95 Å
R-Value Free: 0.241
R-Value Work: 0.185
R-Value Observed: 0.188

Starting Model: other
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wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.2 of the entry. See complete history.

Literature

Discovery of GSK143, a highly potent, selective and orally efficacious spleen tyrosine kinase inhibitor.

Liddle, J., Atkinson, F.L., Barker, M.D., Carter, P.S., Curtis, N.R., Davis, R.P., Douault, C., Dickson, M.C., Elwes, D., Garton, N.S., Gray, M., Hayhow, T.G., Hobbs, C.I., Jones, E., Leach, S., Leavens, K., Lewis, H.D., McCleary, S., Neu, M., Patel, V.K., Preston, A.G., Ramirez-Molina, C., Shipley, T.J., Skone, P.A., Smithers, N., Somers, D.O., Walker, A.L., Watson, R.J., Weingarten, G.G.

(2011) Bioorg Med Chem Lett 21: 6188-6194

PubMed: 21903390 Search on PubMed
DOI: https://doi.org/10.1016/j.bmcl.2011.07.082
Primary Citation of Related Structures:
3SRV, 4YJO, 4YJP, 4YJQ, 4YJR, 4YJS, 4YJT, 4YJU

PubMed Abstract:
The lead optimisation of the diaminopyrimidine carboxamide series of spleen tyrosine kinase inhibitors is described. The medicinal chemistry strategy was focused on optimising the human whole blood activity whilst achieving a sufficient margin over liability kinases and hERG activity. GSK143 is a potent and highly selective SYK inhibitor showing good efficacy in the rat Arthus model.

Organizational Affiliation

GlaxoSmithKline R&D, Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, UK. john.2.liddle@gsk.com

Macromolecule Content

Total Structure Weight: 65.3 kDa
Atom Count: 4,849
Modelled Residue Count: 526
Deposited Residue Count: 554
Unique protein chains: 2

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Tyrosine-protein kinase SYK	A	277	Homo sapiens	Mutation(s): 0 Gene Names: SYK EC: 2.7.10.2
UniProt & NIH Common Fund Data Resources
Find proteins for P43405 (Homo sapiens) Explore P43405 Go to UniProtKB: P43405
PHAROS: P43405 GTEx: ENSG00000165025
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P43405
Sequence Annotations Expand
Reference Sequence

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Tyrosine-protein kinase SYK	B	277	Homo sapiens	Mutation(s): 0 Gene Names: SYK EC: 2.7.10.2
UniProt & NIH Common Fund Data Resources
Find proteins for P43405 (Homo sapiens) Explore P43405 Go to UniProtKB: P43405
PHAROS: P43405 GTEx: ENSG00000165025
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P43405
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
S19 Query on S19 Download Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain G [auth B] MOL2 format, chain C [auth A] MOL2 format, chain G [auth B] mmCIF format, chain C [auth A] mmCIF format, chain G [auth B]	C [auth A], G [auth B]	2-{[(3R,4R)-3-aminotetrahydro-2H-pyran-4-yl]amino}-4-[(4-methylphenyl)amino]pyrimidine-5-carboxamide C₁₇ H₂₂ N₆ O₂ KBPYMFSSFLOJPH-UONOGXRCSA-N		Interactions Focus chain C [auth A] Focus chain G [auth B] Interactions & Density Focus chain C [auth A] Focus chain G [auth B]
GOL Query on GOL Download Ideal Coordinates CCD File SDF format, chain D [auth A] SDF format, chain E [auth A] SDF format, chain F [auth A] SDF format, chain H [auth B] MOL2 format, chain D [auth A] MOL2 format, chain E [auth A] MOL2 format, chain F [auth A] MOL2 format, chain H [auth B] mmCIF format, chain D [auth A] mmCIF format, chain E [auth A] mmCIF format, chain F [auth A] mmCIF format, chain H [auth B]	D [auth A], E [auth A], F [auth A], H [auth B]	GLYCEROL C₃ H₈ O₃ PEDCQBHIVMGVHV-UHFFFAOYSA-N		Interactions Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain H [auth B] Interactions & Density Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain H [auth B]

Modified Residues 1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
PTR Query on PTR	A	L-PEPTIDE LINKING	C₉ H₁₂ N O₆ P		TYR

Binding Affinity Annotations
ID	Source	Binding Affinity
S19	PDBBind: 3SRV	IC50: 31.6 (nM) from 1 assay(s)
S19	BindingDB: 3SRV	IC50: min: 32, max: 40 (nM) from 2 assay(s)

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.95 Å
R-Value Free: 0.241
R-Value Work: 0.185
R-Value Observed: 0.188
Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 40.124	α = 99.68
b = 42.316	β = 90.16
c = 87.621	γ = 100.19

Software Package:

Software Name	Purpose
SCALA	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
MOSFLM	data reduction
REFMAC	phasing

Structure Validation

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Ligand Structure Quality Assessment

Entry History

Deposition Data

Released Date: 2011-09-21

Deposition Author(s):

Somers, D.O.

Neu, M.

Revision History (Full details and data files)

Version 1.0: 2011-09-21
Type: Initial release
Version 1.1: 2011-10-12
Changes: Database references
Version 1.2: 2024-04-03
Changes: Data collection, Database references, Derived calculations, Refinement description