atpase activity

S-trityl-L-Cysteine is a non-natural amino acid and an inhibitor of Eg5, also known as KSP and Kif11, a mitotic kinesin necessary for mitotic spindle formation. S-trityl-L-Cysteine inhibits the ATPase activity of Eg5 in basal and microtubule-stimulated states (IC50s = 1,000 and 140 nM, respectively). It is selective for Eg5 over nine other human kinesins in an enzyme-coupled assay. It reversibly inhibits Eg5-driven microtubule sliding velocity with an IC50 value of 500 nM using X. laevis recombinant Eg5. It induces cell cycle arrest in HeLa cells (IC50 = 700 nM), reversibly halting the cell cycle in the mitotic phase by inhibiting the separation of duplicated chromosomes and preventing bipolar spindle formation. S-trityl-L-Cysteine inhibits the growth of cancer cells in vitro when tested against the National Cancer Institute (NCI) 60 human cancer cell line panel (average GI50 = 1.3 μM) and in mouse xenograft models.

Avapritinib (BLU-285) is a selective, highly potent, and orally active inhibitor of KIT and PDGFRA activation loop mutant kinases, targeting KIT D816V (IC50:0.27 nM) and PDGFRA D842V (IC50:0.24 nM), and attenuates the transport functions of ABCB1 and ABCG2. It binds to the active conformation of the kinases and exhibits antitumor activity.

Darifenacin (UK-88525) is a muscarinic receptor M3 antagonist with anticonvulsant activity and can be used to study urinary incontinence and overactive bladder.

KIF18A-IN-6 (Compound 134) is an orally active KIF18A inhibitor that suppresses KIF18A microtubule-dependent ATPase activity with an IC50 of 0.016 μM. It reduces HCC15 tumour volume in mouse models and may be employed in KIF18A-associated cancer research.

CB-6644 is a small molecule inhibitor of the ATPase activity of the RUVBL1/2 complex. It specifically interacts with RUVBL1/2 in cancer cells and blocks the ATPase activity of RUVBL1/2 with a half-maximal inhibitory concentration (IC50) of 15 nM[1].

Brefeldin A (Cyanein) belongs to the class of macrolide antibiotics and is an ATPase inhibitor (IC50=0.2 μM). Brefeldin A can induce tumor cell differentiation and apoptosis, and also possesses autophagy inhibitory activity.

Bleomycin sulfate is a glycopeptide antibiotic with antitumor activity. It is commonly used as a DNA-damaging agent and DNA synthesis inhibitor. It functions by inducing DNA strand breaks without affecting RNA strands. Bleomycin sulfate is widely used in cancer research and for establishing pulmonary fibrosis animal models.

Abeprazan hydrochloride (Fexuprazan hydrochloride) is an effective reversible potassium-competitive acid blocker with oral activity, inhibiting H+, K+ -atPase by competitive binding to potassium ions without acid activation. Abeprazan hydrochloride is a proton pump inhibitor (PPI) that acts by reducing gastric acid production and is used to treat gastric acid-related disorders, such as gastroesophageal reflux disease (GERD) and peptic ulcers.

1-N-Methyl-4-mercaptohistidine disulfide is a potential redox regulator of the chloroplast coupling factor 1 (CF1) in C. dubia, acting as the oxidized form of ovothiol A to inhibit light-triggered CF1 ATPase activity. 1-N-Methyl-4-mercaptohistidine disulfide possesses antioxidant, enzyme regulatory, and signal modulation functions.

Tamoxifen Citrate is an orally active selective estrogen receptor modulator (SERM) that blocks estrogen activity in breast cells while activating estrogen signaling in cells such as those of the bone, liver, and uterus. As an Hsp90 activator, it enhances the ATPase activity of the Hsp90 chaperone complex, induces autophagy and apoptosis, and can be used to generate gene knockout models in CreER(T2) transgenic mice as well as liver injury models.

Novobiocin Sodium (Albamycinsodium) binds to DNA gyrase and blocks adenosine triphosphatase (ATPase) activity. Novobiocin sodium is an antibiotic compound derived from Streptomyces niveus. It has a chemical structure similar to coumarin.

DHQ (2,3-dihydroxy-quinoxalin) is an inducer of ATPase activity that of Herpes Simplex Virus thymidine kinase.

Vonoprazan Fumarate (TAK438) , a novel potassium-competitive acid blocker, inhibits gastric acid secretion. Vonoprazan Fumarate (TAK438) inhibited H+,K+-ATPase activity in porcine gastric microsomes with IC50 value of 19 nM at pH 6.5.

Pantoprazole sodium (Pantecta) is the sodium salt form of a substituted benzimidazole with proton pump inhibitor activity. Pantoprazole sodium is a lipophilic, weak base that crosses the parietal cell membrane and enters the acidic parietal cell canaliculus where it becomes protonated, producing the active metabolite sulfenamide, which forms an irreversible covalent bond with two sites of the H+/K+-ATPase enzyme located on the gastric parietal cell, thereby inhibiting both basal and stimulated gastric acid production.

2,4,6-Tri-tert-butylphenol inhibits the Ca2+ ATPase activity of human red blood cell membranes and can be used in related research in the field of life sciences.

Cmpd-A is a time-dependent inhibitor of Centromere-associated protein E (CENP-E). It inhibits ATPase activity and exhibits an ATP-competitive-like behavior. In cellular models, Cmpd-A causes chromosome misalignment and leads to mitotic arrest, thereby inhibiting tumor cell proliferation.

Ebselen (CCG-39161) is a organoselenium compound with anti-inflammatory, anti-oxidant and cytoprotective activity. Ebselen acts as a glutathione peroxidase mimetic and is thereby able to prevent cellular damage induced by reactive oxygen species (ROS). In addition, this agent inhibits the activity of a variety of enzymes including nitric oxide synthase (NOS), 5-lipoxygenase, cyclooxygenase, protein kinase C (PKC), NADPH oxidase and gastric H+/K+-ATPase. Furthermore, ebselen may be neuroprotective due to its ability to neutralize free radicals upon NMDA receptor activation thus, reducing lipoperoxidation mediated by glutamate-induced excitotoxicity.

Bafilomycin B1 is a macrolide antibiotic discovered in Streptomyces gresuis. It exhibits neuroprotective effects and V-ATPase inhibitory activity, and can also inhibit LDL-induced lipid droplet accumulation.

BRM/BRG1 ATP Inhibitor-1 is an allosteric dual Brahma homolog (BRM)/SWI/SNF related matrix-associated actin-dependent regulator of chromatin subfamily A member 2 (SMARCA2) and BRG1/SMARCA4 ATPase activity inhibitor (IC50s<0.005 μM).

MSC1094308 is a reversible, non-ATP-competitive alterative inhibitor targeting type II AAA ATPase (VCP/p97) and type I AAA ATPase (VPS4B), which affects the intracellular protein degradation process by binding to a specific hotspot region of p97 and inhibiting D2 ATPase activity.

Paprotrain ((alphaZ)-alpha-(3-Pyridinylmethylene)-1H-indole-3-acetonitrile) inhibits the ATPase activity of MKLP-2 with an IC50 of 1.35 μM and a Ki of 3.36 μM.

Paxilline is an indole alkaloid mycotoxin from *Penicillium paxilli*, acting as a potent BK channel inhibitor via an almost exclusively closed-channel block mechanism. Paxilline possesses significant anticonvulsant activity.

Tamoxifen-d5 is a deuterated form of Tamoxifen. Tamoxifen is an orally active selective estrogen receptor modulator (SERM) that blocks estrogen action in breast cells while activating estrogenic activity in other cells, such as those in bone, liver, and uterus. Tamoxifen is also a potent activator of Hsp90 and enhances the ATPase activity of the Hsp90 molecular chaperone.

Ciliobrevin D is a AAA+ ATPase motor cytoplasmic dynein inhibitor. Ciliobrevin D inhibits Hedgehog (Hh) signaling and primary cilia formation and it also inhibits dynein-dependent microtubule gliding and ATPase activity in vitro.