gtpases

Rhosin hydrochloride is an effective and specific RhoA subfamily Rho GTPases inhibitor, which specifically binds to RhoA to inhibit RhoA-GEF interaction (Kd: ~ 0.4 uM). Rhosin hydrochloride does not interact with Cdc42 or Rac1, nor the GEF, LARG. Rhosin h

Guanosine 5'-triphosphate trisodium salt (5'-GTP trisodium salt) activates signal-transducing G proteins involved in cellular processes such as proliferation, differentiation, and activation of intracellular kinase cascades. It regulates proliferation and apoptosis through the hydrolysis by small GTPases Ras and Rho, and plays a role in vesicle docking, fusion, and formation via Rab. Additionally, GTP serves as an energy-rich precursor for the biosynthesis of DNA and RNA.

IMM-01 is a novel class of small-molecule agonists of the mammalian Diaphanous (mDia)-related formins, which act downstream of Rho GTPases to assemble actin filaments, and their organization with microfilaments to establish and maintain cell polarity during migration and asymmetric division. GTP-bound Rho activates mDia family members by disrupting the interaction between the DID and DAD autoregulatory domains, which releases the FH2 domain to modulate actin and microtubule dynamics[1].

RBC8 is a specific GTPases RalA/RalB inhibitor by inhibiting the binding of Ral to its effector RALBP1, no inhibition on the GTPases RhoA and Ras.

MLS-573151 is a selective inhibitor of GTPase Cdc42(EC50 of 2 μM). It is inactive against other GTPases family members, such as Rab2, Rab7, H-Ras, Rac1, Rac 2 and RhoA wild-type. MLS-573151 acts by blocking the binding of GTP to Cdc42.

CID-1067700 is one of the first identified competitive inhibitors of nucleotide binding by Ras-related GTPases（Rab7 with a Ki of 13 nM).

MLS000532223 is a selectiveRho family GTPases inhibitor(EC50 : 16 μM to 120 μM).

ML-097 (CID-2160985) is a universal activator of Ras-related GTPases.

Rac GTPase fragment is a peptide with the sequence H2N-Val-Phe-Asp-Glu-Ala-Ile-Arg-Ala-Val-OH, MW= 1019.15. Rac is a subfamily of the Rho family of GTPases, small signaling G proteins (more specifically a GTPase).

pan activator of Ras-related GTPases

Rhosin is an effective and specific RhoA subfamily Rho GTPases inhibitor, which specifically binds to RhoA to inhibit RhoA-GEF interaction (Kd: ~ 0.4 uM). Rhosin does not interact with Cdc42 or Rac1, nor the GEF, LARG. Rhosin causes cell apoptosis.

Guanosine 5’-diphosphate (GDP) is a purine nucleotide and biosynthetic precursor of guanosine 5’-triphosphate .1It has been used to study the conformations of GTPases.2GDP (100 μM) activates sulfonylurea receptor 2B (SUR2B) linked to the inward-rectifier potassium channel 6.1 (Kir6.1) in HEK293T cells in a patch-clamp assay.3 1.Berg, J.M., Tymoczko, J.L., and Stryer, L.Biochemistry(2002) 2.Vetter, I.R., and Wittinghofer, A.The guanine nucleotide-binding switch in three dimensionsScience294(5545)1299-1304(2001) 3.Yamada, M., Isomoto, S., Matsumoto, S., et al.Sulphonylurea receptor 2B and Kir6.1 form a sulphonylurea-sensitive but ATP-insensitive K+ channelJ. Physiol.499(Pt 3)715-720(1997)

8-CPT-2Me-cAMP sodium is a sodium salt compound that selectively activates exchange proteins activated by cAMP (Epac), which are cAMP-sensitive guanine nucleotide exchange factors (GEFs) responsible for activating small GTPases Rap1 and Rap2. It specifically activates Epac1 with an EC50 value of 2.2 μM, while showing no activation of PKA with an EC50 value greater than 10 μM [1]. Additionally, 8-CPT-2Me-cAMP sodium stimulates the Epac-mediated release of calcium ions (Ca2+) in vitro in pancreatic β-cells [2].

Dynamin-related GTPase DRP1 partial inhibitor (IC50 = 1.2 μM). Selective for DRP1 over other dynamin-related GTPases, OPA1 and DYN1. Increases mitochondrial DNA levels in mfn1- knockout MEFs deficient in mitochondrial fusion. Mallat et al (2018) Discovery and characterization of selective small molecule inhibitors of the mammalian mitochondrial division dynamin, DRP1. Biochem.Biophys.Res.Commun. 499 556 PMID:29601815

1A-116 is a specific inhibitor of Rac1 .

Geranylgeranyl pyrophosphate is an intermediate in the HMG-CoA reductase pathway derived directly from farnesyl pyrophosphate and used in the biosynthesis of terpenes and terpenoids.[1] It is also serves as a substrate in the prenylation of a variety of critical intracellular proteins including small GTPases.[2] This post-translational modification is necessary for correct localization of proteins to intracellular membranes for proper functionality and has become a focus of anticancer drug discovery.[3][4]

Inosine-5'-triphosphate trisodium salt (ITP) is used in studies on the impact of deamination of ATP and GTP by various enzymes and chemical processes. Inosine-5'-triphosphate trisodium salt (ITP) may be used as a substrate to study the specificity and kinetics of nucleoside-5′-triphosphatase and ATPase. Inosine-5'-triphosphate trisodium salt (ITP) is also used to study activation of various ATPases and GTPases.