pad2

Streptonigrin is a natural product produced by Streptomyces flocculus, has both anti-tumor and anti-bacterial activity. Streptonigrin acts as a pan-PAD inhibitor (IC50s: 48.3±34.2 µM, 26.1±0.3 µM, 0.43±0.03 µM, and 2.5±0.4 µM for PAD1, PAD2, PAD3, and PAD

PAD2-IN-2 (cis-isomer of 1) TFA 为蛋白质精氨酸脱亚胺酶 2 (PAD2) 的抑制剂，拥有偶氮苯光开关，可光学调控 PAD 活性。PAD2-IN-2 TFA 能抑制组蛋白 H3-瓜氨酸化。

PAD2-IN-1 hydrochloride 是有效的、选择性的蛋白精氨酸脱亚氨酶 2 (PAD2) 抑制剂，且对 PAD2 的选择性优于 PAD4 (95 倍) 和 PAD3 (79 倍)，是一种基于苯并咪唑的衍生物。

PAD2-IN-1, a benzimidazole-based derivative, is an efficacious and specific inhibitor of protein arginine deiminase 2 (PAD2). Demonstrating remarkable selectivity, PAD2-IN-1 exhibits a 95-fold higher affinity for PAD2 in comparison to PAD4 and a 79-fold higher affinity than PAD3.

KP-302(compound 23)是一种选择性的protein arginine deaminase 2(PAD2)抑制剂，Ki=60 μM，能够逆转多发性硬化症 (MS) 小鼠的身体残疾并清除大脑中的T细胞浸润。

PF-3166 (compund PF-3166)，一种具有细胞活性的PAD2抑制剂。

Photoswitchable PAD inhibitor is a photoactivated protein arginine deiminase (PAD) inhibitor and a derivative of BB-Cl-amidine that contains an azobenzene photoswitch allowing optical control of PAD activity.1 Without photoactivation, it is a weak inhibitor of PAD2 (IC50 = >100 μM) and is less potent than BB-Cl-amidine in inhibiting citrulline production in vitro (kinact KIs = 2,300, 600, 1,000, and 10,510 M-1min-1 for PAD1-4, respectively) and does not inhibit histone H3 citrullination in HEK293T cells overexpressing PAD2 when used at concentrations up to 100 μM. However, it can rapidly be photoactivated with UV-A radiation to the more active cis-isomer, which is an irreversible, competitive inhibitor of histone H3 citrullination with an IC50 value of 9.1 μM.References1. Mondal, S., Parelkar, S.S., Nagar, M., et al. Photochemical control of protein arginine deiminase (PAD) activity. ACS Chem. Biol. 13(4), 1057-1065 (2018). Photoswitchable PAD inhibitor is a photoactivated protein arginine deiminase (PAD) inhibitor and a derivative of BB-Cl-amidine that contains an azobenzene photoswitch allowing optical control of PAD activity.1 Without photoactivation, it is a weak inhibitor of PAD2 (IC50 = >100 μM) and is less potent than BB-Cl-amidine in inhibiting citrulline production in vitro (kinact KIs = 2,300, 600, 1,000, and 10,510 M-1min-1 for PAD1-4, respectively) and does not inhibit histone H3 citrullination in HEK293T cells overexpressing PAD2 when used at concentrations up to 100 μM. However, it can rapidly be photoactivated with UV-A radiation to the more active cis-isomer, which is an irreversible, competitive inhibitor of histone H3 citrullination with an IC50 value of 9.1 μM. References1. Mondal, S., Parelkar, S.S., Nagar, M., et al. Photochemical control of protein arginine deiminase (PAD) activity. ACS Chem. Biol. 13(4), 1057-1065 (2018).

YW3-56 is an inhibitor of protein arginine deiminase 2 (PAD2) and PAD4 (IC50s = 0.5-1 and 1-5 μM, respectively).1It inhibits the growth of U2OS osteosarcoma cells (IC50= ~2.5 μM) in a p53-dependent mannerviainduction of SESN2 and subsequent inhibition of mTORC1. YW3-56 (10 mg kg) reduces tumor growth in an S-180 murine sarcoma tumor model. It also inhibits tumor growth in the 1883 MDA-MB-231 breast cancer bone metastasis mouse xenograft model.2 1.Wang, Y., Li, P., Wang, S., et al.Anticancer peptidylarginine deiminase (PAD) inhibitors regulate the autophagy flux and the mammalian target of rapamycin complex 1 activityThe Journal of Biological Chemisty287(31)25941-25952(2012) 2.Wang, S., Chen, X.A., Hu, J., et al.ATF4 gene network mediates cellular response to the anticancer PAD inhibitor YW3-56 in triple-negative breast cancer cellsMol. Cancer Ther.14(4)877-888(2015)

AFM-30a hydrochloride 是一种有效的、高度选择性的蛋白质精氨酸脱亚胺酶 2(PAD2) 抑制剂。AFM-30a hydrochloride 能够与 PAD2 结合 (EC50: 9.5 μM)，也能够抑制 H3 瓜氨酸化 (EC50: 0.4 μM)。AFM-30a hydrochloride 能够用于研究某些癌症和多种自身免疫性疾病如类风湿性关节炎 (RA)、多发性硬化症、狼疮和溃疡性结肠炎。