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Cl-Amidine (trifluoroacetate salt)

Catalog No.
PAD4 deimination activity inhibitor
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Ship with 5-10 days
Ship with 5-10 days

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IC50: 5.9 μM

Cl-Amidine is a PAD4 deimination activity inhibitor.

Protein arginine deiminase 4 (PAD4) can catalyze the post-translational modification of arginine residues on histones to form citrulline, which can change gene expression. Thus, dysregulated PAD4 activity has been implicated in cancer and rheumatoid arthritis.

In vitro: Previous study found that Cl-amidine antagonized the PAD4-mediated enhancement of the the p300GBD-GRIP1 interaction dose-dependently, and it was noteworthy that Cl-amidine treatment had only a minimal reduction in the efficiency of the interaction in Cys645S-transfected cells, thereby suggesting that the inhibitory effect of Cl-amidine was not a nonspecific one but was targeted at the active PAD4 enzyme. These results demonstrated that Cl-amidine was significantly more potent than F-amidine, consistent with its improved in vitro potency [1].

In vivo: Animal study showed that Cl-amidine could improve survival in a mouse model of cecal ligation and puncture (CLP)-induced septic shock. Cl-amidine was proven to play protective roles by restoring innate immune cells in BM, decreasing BM and thymus atrophy, increasing blood monocytes and blood/liver bacteria clearance, and attenuating pro-inflammatory cytokine production in a murine lethal sepsis model [2].

Clinical trial: So far, no clinical study has been conducted.

[1] Luo, Y. ,Arita, K.,Bhatia, M., et al. Inhibitors and inactivators of protein arginine deiminase 4: Functional and structural characterization. Biochemistry 45(39), 11727-11736 (2006).
[2] Zhao T, Pan B, Alam HB, Liu B, Bronson RT, Deng Q, Wu E, Li Y.  Protective effect of Cl-amidine against CLP-induced lethal septic shock in mice. Sci Rep. 2016 Nov 7;6:36696.

Chemical Properties

Physical AppearanceA crystalline solid
StorageStore at -20°C
Cas No.1043444-18-3
Solubility≤20mg/ml in ethanol;50mg/ml in DMSO;14mg/ml in dimethyl formamide
Chemical NameN-[(1S)-1-(aminocarbonyl)-4-[(2-chloro-1-iminoethyl)amino]butyl]-benzamide 2,2,2-trifluoroacetate
SDFDownload SDF
Canonical SMILESO=C(N[[email protected]@H](CCCNC(CCl)=N)C(N)=O)C1=CC=CC=C1.FC(F)(C(O)=O)F
Shipping ConditionEvaluation sample solution: ship with blue ice. All other available sizes: ship with RT, or blue ice upon request.
General tipsFor obtaining a higher solubility, please warm the tube at 37°C and shake it in the ultrasonic bath for a while. Stock solution can be stored below -20°C for several months.

Quality Control

Quality Control & MSDS

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Chemical structure

Cl-Amidine (trifluoroacetate salt)