Name: PRT062607 (P505-15) HCl
Brand: Selleck Chemicals
SKU: S8032
Availability: InStock
Rating: 5 (50 reviews)

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Quality Control

Batch: Purity: 99.69%

99.69

Related Targets	EGFR VEGFR JAK PDGFR FGFR Src HIF FLT FLT3 HER2
Other Syk Inhibitors	R406 R406 (free base) Entospletinib (GS-9973) Piceatannol BAY 61-3606 dihydrochloride PRT-060318 2HCl TAK-659 Hydrochloride Lanraplenib (GS-SYK) RO9021 R112

Cell Culture, Treatment & Working Concentration

Cell Lines	Assay Type	Incubation Time	Activity Description	PMID
Ramos	Function assay		Inhibition of Syk in anti IgM-stimulated human Ramos cells assessed as BLNK phosphorylation by cellular assay, IC50 = 0.178 μM.	24726806
Ramos B	Function assay	30 mins	Inhibition of Syk in anti-igM stimulated human Ramos B cells assessed as phospho-BLNK level preincubated for 30 mins followed by anti-IgM stimulation measured after 15 mins by flow cytometric analysis, IC50 = 0.178 μM.	25633741
Ramos B	Function assay	30 mins	Inhibition of Syk in anti-igM stimulated human Ramos B cells assessed as phospho-BLNK level preincubated for 30 mins followed by anti-IgM stimulation measured after 15 mins by flow cytometric analysis, IC50 = 0.178 μM.	26320624
Ramos	Cytotoxicity assay		Cytotoxicity against human Ramos cells, IC50 = 0.223 μM.	23151054
Ramos	Function assay		Inhibition of SYK in human Ramos cells, IC50 = 0.223 μM.	23350847
Jurkat T	Function assay	30 mins	Inhibition of ZAP70 in anti-CD3 stimulated human Jurkat T cells assessed as SLP76 phosphorylation at Y128 preincubated for 30 mins followed by anti-CD3 stimulation measured after 2 mins by FACS analysis, IC50 = 1.805 μM.	25633741
bone marrow cells	Cytotoxicity assay	4 days	Cytotoxicity against C57BL/6 mouse bone marrow cells assessed as growth inhibition preincubated for 4 days followed by [3H]-thymidine addition measured after 5 hrs by betaplate counting analysis, IC50 = 5.853 μM.	25633741
bone marrow cells	Function assay		Inhibition of IL3 dependent proliferation in C57/B16 mouse bone marrow cells using [3H]thymidine by liquid scintillation counting, IC50 = 5.853 μM.	24726806
CHO	Function assay		Inhibition of human ERG expressed in CHO cells by automated Qpatch clamp assay, IC50 = 8.6 μM.	25633741
Click to View More Cell Line Experimental Data

Solubility

In vitro
Batch:

DMSO : 86 mg/mL (200.04 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : 86 mg/mL

Ethanol : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	Saline Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	30.000mg/ml (69.78mM)	Taking the 1 mL working solution as an example, add 30 mg of this product to 1 ml of physiological saline (0.9% NaCL solution), mix evenly to make it clear, The mixed solution should be used immediately for optimal results.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg

Average weight of animals: g

Dosing volume per animal: μL

Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO

%

% Tween 80

% ddH₂O

% DMSO

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Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Chemical Information, Storage & Stability

Molecular Weight	429.91	Formula	C₁₉H₂₃N₉O.HCl	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	1370261-97-4	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	BIIB057, PRT-2607			Smiles	C1CCC(C(C1)N)NC2=NC=C(C(=N2)NC3=CC(=CC=C3)N4N=CC=N4)C(=O)N.Cl

Mechanism of Action

Targets/IC₅₀/Ki	Syk (Cell-free assay) 1 nM FGR (Cell-free assay) 81 nM MLK1 (Cell-free assay) 88 nM PYK2 (Cell-free assay) 108 nM YES (Cell-free assay) 123 nM FLT3 (Cell-free assay) 139 nM PAK5 (Cell-free assay) 166 nM Lyn (Cell-free assay) 192 nM cSRC (Cell-free assay) 244 nM LCK (Cell-free assay) 249 nM FAK (Cell-free assay) 415 nM
In vitro	PRT062607(P505-15) anti-SYK activity is at least 80-fold greater than its affinity for other kinases. at least 80-fold greater than its affinity for other kinases. PRT062607 potently inhibits B cell antigen receptor-mediated B cell signaling and activation (IC50 0.27 and 0.28 μM, respectively) and Fcε receptor 1-mediated basophil degranulation (IC50 0.15 μM). PRT062607 inhibits BCR-dependent secretion of the chemokines CCL3 and CCL4 by CLL cells, and leukemia cell migration toward the tissue homing chemokines CXCL12, CXCL13, and beneath stromal cells. PRT062607 furthermore inhibits Syk and extracellular signal-regulated kinase phosphorylation after BCR triggering.
Kinase Assay	fluorescence resonance energy transfer (FRET) assay
Kinase Assay	The extent of substrate phosphorylation by Syk is measured in the presence of various PRT062607 concentrations. Syk activity is determined by a fluorescent antibody specific for phosphorylated tyrosine by using the increase of FRET. Twelve concentrations are tested for dose response. Specificity and potency of kinase inhibition is determined by evaluation of PRT062607 in the Millipore KinaseProfiler panel of 270 independent purified kinase assays. For profiling, PRT062607 is tested in duplicate at two concentrations at a fixed concentration of ATP. Subsequently, IC50 determinations using the radioactive assays are carried out at an ATP concentration optimized for each individual kinase. All radioactive ATP incorporationenzyme assays are performed at Millipore.
In vivo	The pharmacokinetic/pharmacodynamic relationship predicted that 70% Syk suppression is maintained in mice over a 24h period after 30 mg/kg dosing. At 15 mg/kg, Syk inhibition ranges from 7.5% (Cmin) to 78.4% (Cmax) with an average inhibition of 67% over 24 h. Oral administration of PRT062607 produced dose-dependent anti-inflammatory activity in two rodent models of rheumatoid arthritis. Statistically significant efficacy is observed at concentrations that specifically suppressed Syk activity by 67%.
References	[1] https://pubmed.ncbi.nlm.nih.gov/22040680/ [2] https://pubmed.ncbi.nlm.nih.gov/22362000/

Applications

Methods	Biomarkers	Images	PMID
Western blot	p-Syk / Syk / p-FLT3 / FLT3 / p-STAT5 / STAT5 Bcl6		24525236
Growth inhibition assay	Cell viability		28064214

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT01652937	Withdrawn	Rheumatoid Arthritis	Biogen	August 2012	Phase 2

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PRT062607 (P505-15) HCl Syk inhibitor

Chemical Structure

Molecular Weight: 429.91