Home GPCR & G Protein CXCR agonist ATI-2341 For research use only.

ATI-2341

ATI-2341, pepducin targeting the C-X-C chemokine receptor type 4 (CXCR4), is an allosteric agonist activating the inhibitory heterotrimeric G protein (Gi) to promote inhibition of cAMP production and induce calcium mobilization.

ATI-2341 Chemical Structure

ATI-2341 Chemical Structure

CAS: 1337878-62-2

Purity & Quality Control

Batch: S830901 DMSO] 100 mg/mL] false] Ethanol] 2 mg/mL] false] Water] Insoluble] false Purity: 98.51%
98.51

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Biological Activity

Description ATI-2341, pepducin targeting the C-X-C chemokine receptor type 4 (CXCR4), is an allosteric agonist activating the inhibitory heterotrimeric G protein (Gi) to promote inhibition of cAMP production and induce calcium mobilization.
Targets
CXCR4 [1]
(in CCRF-CEM cells)
194 nM(EC50)
In vitro
In vitro ATI-2341 induces CXCR4- and G protein-dependent signaling, receptor internalization, and chemotaxis in CXCR4-expressing cells. It is the most potent agonist with an EC50 value of 194 ± 16 nM and an intrinsic activity of 81 ± 4%. ATI-2341 is a potent and efficacious mobilizer of bone marrow PMNs(polymorphonuclear neutrophils) and HSPCs(hematopoietic stem and progenitor cells) and could represent a previously undescribed therapeutic approach for the recruitment of HSPCs before ABMT(autologous bone marrow transplantation). ATI-2341 is able to induce chemotaxis of CCRF-CEM cells, inducing the typical bell-shaped curve observed with chemotactic agents[1].
Cell Research Cell lines HEK-293 cells
Concentrations 0, 0.031, 0.125, 0.25, 0.5, 1 μM
Incubation Time 30 min
Method

Receptors(CXCR4-eGFP) are transiently transfected into HEK-293 cells and are plated 24 h after transfection on glass coverslips coated with poly-D-lysine. The next day, cells are treated with either vehicle alone or with varying concentrations of ATI-2341 for 30 min at 37 °C followed by fixation with methanol for 5 min at −20 °C. GFP fluorescence is visualized directly using a Zeiss Axiovert inverted microscope. Images are processed using Adobe Photoshop and Adobe Illustrator.
In Vivo
In vivo Intraperitoneal (i.p.) injection of ATI-2341 in BALB/c mice results in a dose-dependent recruitment of PMNs into the peritoneum, with a maximal effect seen at 405 nmol/kg. A higher concentration of ATI-2341 results in reduced recruitment, which is reminiscent of the bell-shaped curve generally seen with chemotactic agents. Intravenous (i.v.) administration of ATI-2341 in mice results in a dose-dependent increase in PMNs in the peripheral circulation, measured 90 min after administration of compound. The effect is maximal at 0.66 μmol/kg of ATI-2341. ATI-2341 has no effect on the mobilization of lymphocytes at any dose tested[1].
Animal Research Animal Models BALB/c mice
Dosages 300 nmol/kg
Administration i.p.

Chemical Information & Solubility

Molecular Weight 2256.82 Formula

C104H178N26O25S2
CAS No. 1337878-62-2 SDF Download ATI-2341 SDF
Smiles CCCCCCCCCCCCCCCC(=O)NC(CCSC)C(=O)NCC(=O)NC(CC1=CC=C(C=C1)O)C(=O)NC(CCC(=O)N)C(=O)NC(CCCCN)C(=O)NC(CCCCN)C(=O)NC(CC(C)C)C(=O)NC(CCCNC(=N)N)C(=O)NC(CO)C(=O)NC(CCSC)C(=O)NC(C(C)O)C(=O)NC(CC(=O)O)C(=O)NC(CCCCN)C(=O)NC(CC2=CC=C(C=C2)O)C(=O)NC(CCCNC(=N)N)C(=O)NC(CC(C)C)C(=O)O
Storage (From the date of receipt)

In vitro
Batch:

DMSO : 100 mg/mL ( (44.31 mM)； Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 2 mg/mL

Water : Insoluble


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In vivo
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Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

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