atpase activity

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.

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.

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.

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

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.

1-N-Methyl-4-mercaptohistidine disulfide is a potential Duchenne chloroplast coupling factor 1 redox regulator, an oxidized form of ochratoxin A, that inhibits light-triggered CF1 ATPase activity.

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.

CB-6644, a selective inhibitor of the RUVBL1 2 complex, blocks the ATPase activity of RUVBL1 2 with an IC50 of 15 nM.

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).

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.

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.

Cinobufagin (Cinobufagine) is a selective Na+/K+-ATPase inhibitor. The activity of Cinobufagin is same as ouabain.

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.

Bufalin is an active ingredient and one of the glycosides in the traditional Chinese medicine ChanSu; it is also a bufadienolide toxin originally isolated from the venom of the Chinese toad Bufo gargarizans, with potential cardiotonic and antineoplastic a

Oligomycin A (MCH 32) is an inhibitor of ATP synthase, inhibits oxidative phosphorylation and all the ATP-dependent processes occurring on the coupling membrane of mitochondria.

1. Oleandrin (Folinerin), the principal cardiac glycoside component of PBI-524, can quantitatively account for regulation of BDNF at both the protein and transcriptional levels. 2. Oleandrin are known to inhibit the Na, K-ATPase pump, resulting in a consequent increase in calcium influx in heart muscle. 3. Oleandrin has stronger anti-proliferative activity in undifferentiated CaCO-2 cells (IC50, 8.25 nM) , causes an autophagic cell death and altered ERK phosphorylation in undifferentiated.

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.

DNA2 inhibitor C5 is a promising lead compound to develop sensitizers for cancer chemotherapeutics that cause replication stress and it also is a competitive and specific inhibitor of DNA2 nuclease activity (IC50: 20 μM). DNA2 inhibitor C5 inhibits nuclea

NSC 617145 (NSC617145) is an inhibitor of WRN helicase that inhibits the ATPase, but not exonuclease, activity of WRN helicase in a concentration-dependent manner.

YUM70 is a potent and selective inhibitor of glucose-regulated protein 78 (GRP78), with an IC50 of 1.5 μM for inhibiting GRP78 ATPase activity of the full-length protein. It induces endoplasmic reticulum (ER) stress-mediated apoptosis in pancreatic cancer.

Wilforine, a sesquiterpene pyridine alkaloid, is an important bioactive compound in T. wilfordii plants and is effective in treating idiopathic pulmonary fibrosis. Wilforine exhibits an anti-inflammatory effect, which might be mediated by the down-regulation of inflammatory factors TNF-α, IL-6, and NO. Additionally, it has insecticidal activity by inhibiting the Na+-K+-ATPase in the central nervous system.

NU2058 (O(6)-Cyclohexylmethylguanine) is a guanine-based CDK inhibitor, also inhibits DNA topoisomerase II ATPase activity.

Cannabidiol hydroxyquinone (HU-331) is potentially an active metabolite of cannabidiol that could play a role in inducing apoptosis. It functions by inhibiting the ATPase activity of topoisomerase IIα through a noncompetitive mechanism.

Eubananin effectively inhibits the ATPase activity of the SARS Coronavirus helicase, displaying an IC50 value of 2.8 μM.

FHT-1015 is a potent SMARCA4/SMARCA2 ATPase (BRG1 and BRM) inhibitor with potential anticancer activity for the study of cancer and inflammation.

Iodobananin effectively inhibits the ATPase activity of the SARS Coronavirus helicase, displaying an IC 50 value of 0.54 μM.

S-Fcme is an activator of multidrug resistance transporter that acts by stimulating the multidrug resistance transporter ATPase activity and competing for drug binding.

(+)-SJ733 (SJ000557733) is a potent Na+-ATPase PfATP4 inhibitor with antimalarial activity for the study of malaria.

Antibacterial agent 98 (compound g37) is an effective oral antibacterial agent that inhibits the ATPase activity of Gyrase B and weakens the DNA super-helix of S. aureus. Notably, it does not induce the development of MRSA (methicillin-resistant Staphylococcus aureus) resistance.

Aurein 2.3, an antibiotic antimicrobial peptide, partially inhibits E. coli ATPase activity and suppresses cell growth [1] [2].

SARS-CoV-2 nsp13-IN-4 (C4 (d)) is a potent and selective small-molecule inhibitor of nsp13 helicase, inhibiting the ssDNA+ ATPase activity of nsp13 with an IC50 of 57 μM, and providing a broad-spectrum antiviral effect.

CAY10719 is a selective inhibitor of the breast cancer resistance protein ABCG2 (IC50 = 0.23 μM) with little activity at ABCG1. It has been shown to reverse the ABCG2-mediated resistance toward SN 38 and to inhibit ATPase activity.

Tamoxifen-d5 is a deuterium labeled Tamoxifen. Tamoxifen is a selective modulator of estrogen receptor (SERM). Tamoxifen is a potent activator of Hsp90 and enhances the Hsp90 molecular chaperone ATPase activity.

(±)18-HETE is the racemic version of a cytochrome P450 (CYP450) metabolite of arachidonic acid. When formed by the CYP2E1 isoform, 18-HETE is comprised 100% of the (R) isomer. 18(R)-HETE dose-dependently stimulates vasodilation of the rabbit kidney, whereas 18(S)-HETE does not affect perfusion pressure. 18-HETE has negligible effects on ATPase activity. 18(R)-HETE at 1 μM completely blocks 20-HETE-induced vasoconstriction of renal arterioles.

14-Anhydrodigitoxigenin is a cardenolide and a derivative of digitoxin.1 It reduces the activity of guinea pig heart Na+/K+-ATPase by 15% when used at a concentration of 10 μM.2

Electrolyte and fluid transport in the kidney are regulated in part by arachidonic acid and its metabolites. (±)17-HETE is the racemic version of a cytochrome P450 (CYP450) metabolite of arachidonic acid that has stereospecific effects on sodium transport in the kidney. At a concentration of 2 μM the (S)-enantiomer of 17-HETE inhibits proximal tubule ATPase activity by as much as 70%, whereas the (R)-isomer is inactive.

SCH28080 is a reversible and K+-competitive inhibitor of gastric H+ K+-ATPase with an IC50 value of 20 nM (rabbit microsomal membrane).SCH28080 is a potent inhibitor of acid secretion in vivo with anti-ulcer activity, anti-secretory and cytoprotective activity.

G247 is a specific inhibitor of MsbA, a wedge of transmembrane structural domains (TMDs) that symmetrically enhances the separation of nucleotide-binding domains (NBDs) and prevents conformational transitions of MsbA. G247 increases the distance between NBDs, thereby inhibiting ATPase activity.

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.

(S)-3'-amino Blebbistatin, retaining the active stereochemistry of the less stable and more phototoxic (–)-blebbistatin, serves as a refined selective cell-permeable inhibitor of non-muscle myosin II ATPases. This compound efficaciously inhibits the Mg-ATPase activity and in vitro motility of non-muscle myosin IIA and IIB across several species with IC50s ranging from 0.5-5 µM, and exhibits minimal inhibition against smooth muscle myosin (IC50= 80 µM). Its primary functions include obstructing apoptosis-related bleb formation, directed cell migration, and cytokinesis in vertebrate cells. (S)-3'-amino Blebbistatin overcomes (–)-blebbistatin’s limitation of rapid degradation under blue light (450-490 nm) exposure, which generates cytotoxic intermediates, thus posing a challenge for fluorescent live cell imaging applications. The introduction of a 3’-amino group to its structure notably reduces fluorescence while maintaining (–)-blebbistatin’s activity, making it a superior alternative for research purposes.

NSC145366 is an inhibitor of Hsp90 activities which targets the Hsp90 C-terminal domain to induce allosteric inhibition and selective client downregulation. NSC145366 increases Hsp90 oligomerization resulting in allosteric inhibition of NTD ATPase activity (IC50=119μM) but does not compete with NTD or CTD-ATP binding.

Nepaprazole is a proton pump inhibitor. TY-11345 potently inhibited H+/K(+)-ATPase activity in isolated rabbit gastric mucosal microsomes, and the inhibitory effect was enhanced under weak acid conditions, the IC50 being 5.8 microM and 9.9 microM at pH 6.

P-gp Inhibitor 15 (compound 7a), a nonsubstrate inhibitor of P-glycoprotein (Pgp), inhibits Pgp-ATPase activity and interferes with Pgp-mediated Rhodamine123 efflux. Additionally, this compound enhances the inhibitory effect of Paclitaxel on tumor progression in the KBV xenograft tumor model in nude mice [1].

DN-F01 exhibits a potent calcium-dependent inhibitory effect on cardiac myofibrillar ATPase activity, with an IC50 of 11 ± 4 nmol/L.

Tiludronate (Tiludronic Acid), an orally active bisphosphonate with osteoregulatory activity, is used to study metabolic bone disorders. It acts as a potent inhibitor of osteoclast vacuolar H(+)-ATPase and exhibits antiresorptive and anti-inflammatory properties.

Reversin 121, a P-glycoprotein inhibitor, enhances MDR1's ATPase activity and counteracts P-glycoprotein-mediated multidrug resistance, making it useful in cancer research.

MsbA-IN-6 is a potent antibiotic and inhibitor of the gram-negative ATP-binding cassette (ABC) transporter MsbA, an essential protein for transporting lipopolysaccharide across the inner bacterial membrane. It exerts a bactericidal effect on Escherichia coli by inhibiting the ATPase and transport activity of MsbA, while retaining efficacy against multidrug-resistant clinical strains [1] [2].

Calcimycin (A-23187) hemimagnesium, an antibiotic and divalent cation ionophore (such as calcium and magnesium), serves various biological roles. It triggers Ca2+-dependent cell death by elevating intracellular calcium levels and suppresses the growth of Gram-positive bacteria and certain fungi. Additionally, this compound hinders ATPase activity and uncouples oxidative phosphorylation (OXPHOS) in mammalian cells, ultimately leading to apoptosis [1] [2] [3] [4].

Electrolyte and fluid transport in the kidney are regulated in part by arachidonic acid and its metabolites. Electrolyte and fluid transport in the kidney are regulated in part by arachidonic acid and its metabolites.17-HETE is a cytochrome P450 (CYP450) metabolite of arachidonic acid that has stereospecific effects on sodium transport in the kidney.17(S)-HETE inhibits proximal tubule ATPase activity by as much as 70% at a concentration of 2 μM.

Echinatin exerts a protective effect against ischemia/reperfusion (I/R)-induced myocardial injury on hearts, this effect may be attributed to the antioxidant and anti-inflammatory activities of this compound. Echinatin can inhibit DNP-ATPase activity whil

Tamoxifen is an antineoplastic nonsteroidal selective estrogen receptor modulator (SERM).