photoactivated

Optovin is a TRPA1 activator, which is reversibly photoactivated.

Methoxsalen (NCI-C55903) is a Photoactivated Radical Generator and Psoralen. The mechanism of action of methoxsalen is as a Photoabsorption. The physiologic effect of methoxsalen is by means of Photosensitizing Activity.

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).

Methoxsalen (Standard) is the standard substance of Methoxsalen, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Methoxsalen (NCI-C55903) is a Photoactivated Radical Generator and Psoralen. The mechanism of action of methoxsalen is as a Photoabsorption. The physiologic effect of methoxsalen is by means of Photosensitizing Activity.

4-Azide-TFP-amide-SS-propionic acid contains an aryl azide, a cleavable disulfide bond, and a carboxylic acid. The aryl azide can be photoactivated by ultraviolet light (250 to 350 nm) to bind with biomolecules. Fluorine helps stabilize radical intermediates. The carboxylic acid can react with amines in the presence of an activating agent to form an amide bond. The disulfide bond can be cleaved by a reducing agent.

4-Azide-TFP-amide-SS-Sulfo-NHS comprises an aryl azide, a cleavable disulfide bond, and an NHS ester. The aryl azide can be photoactivated by ultraviolet light (250 to 350 nm) to bind with biomolecules, while fluorine aids in stabilizing radical intermediates. The NHS ester reacts with amines, and the disulfide bond is cleavable by reducing agents.

4-Azide-TFP-amide-PEG4-acid contains an aryl azide and a carboxylic acid, with a PEG spacer to enhance solubility and reduce steric hindrance during the conjugation process. The aryl azide can be photoactivated by UV light (250 to 350 nm) to bond with biomolecules. Fluorine stabilizes radical intermediates. The carboxylic acid can react with amines in the presence of a coupling agent to form an amide bond.