H-Ras Activators
The chemical class of H-Ras activators encompasses compounds that influence the activation of H-Ras through diverse mechanisms. These chemicals target key nodes in the regulatory network governing H-Ras function. For instance, inhibitors of farnesyltransferase, such as Farnesylthiosalicylic Acid and Tipifarnib, disrupt the prenylation of H-Ras, preventing its proper membrane association and promoting cytoplasmic accumulation. Additionally, GGTI-298 specifically inhibits geranylgeranyltransferase I, impacting H-Ras localization and enhancing its activation. These direct activators highlight the intricate post-translational modifications crucial for H-Ras function.
Indirect activators, such as BAY 1125976 and AZD8330, modulate H-Ras activity by targeting downstream components of the MAPK pathway. By inhibiting MEK, these compounds interfere with the phosphorylation cascade initiated by H-Ras activation, providing an indirect route to modulate its activity. Rac1 inhibitors like NCS 23766 indirectly enhance H-Ras activation by relieving the negative regulation imposed by Rac1 on Ras signaling. Sotorasib, a selective KRAS inhibitor, influences H-Ras through shared downstream effectors within the Ras family.
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| Product Name | CAS # | Catalog # | QUANTITY | Price | Citations | RATING |
|---|---|---|---|---|---|---|
GGTI 298 | 1217457-86-7 | sc-361184 sc-361184A | 1 mg 5 mg | $193.00 $838.00 | 2 | |
GGTI-298 is a geranylgeranyltransferase I (GGTase I) inhibitor, disrupting the prenylation of H-Ras. This inhibition prevents H-Ras membrane localization, leading to its activation by promoting the accumulation of non-prenylated H-Ras in the cytoplasm. The cytoplasmic accumulation enables interactions with downstream effectors, initiating signaling cascades that contribute to H-Ras activation and cellular responses. | ||||||
Farnesyl thiosalicylic acid | 162520-00-5 | sc-205322 sc-205322A | 1 mg 5 mg | $61.00 $82.00 | 15 | |
Farnesylthiosalicylic Acid is an inhibitor of farnesyltransferase, the enzyme responsible for H-Ras prenylation. By hindering prenylation, this compound disrupts the membrane association of H-Ras, leading to its cytoplasmic accumulation and subsequent activation. The non-prenylated H-Ras can then engage in downstream signaling events, triggering cellular responses. | ||||||
EHT 1864 | 754240-09-0 | sc-361175 sc-361175A | 10 mg 50 mg | $213.00 $889.00 | 12 | |
EHT 1864 is a Rac family small GTPase inhibitor that indirectly influences H-Ras activation. Rac GTPases are involved in modulating the activity of guanine nucleotide exchange factors (GEFs) for H-Ras. By inhibiting Rac GTPases, EHT 1864 indirectly enhances the activity of H-Ras GEFs, promoting the exchange of GDP for GTP on H-Ras and facilitating its activation. This compound provides an indirect route to activate H-Ras by modulating the upstream regulatory network. | ||||||
PD 184,352 | 212631-79-3 | sc-202759 sc-202759A | 1 mg 5 mg | $40.00 $260.00 | 34 | |
CI-1040, also known as PD184352, is a selective MEK inhibitor that indirectly influences H-Ras activation by targeting the MAPK pathway downstream of Ras. By inhibiting MEK, CI-1040 disrupts the phosphorylation cascade that follows H-Ras activation, affecting downstream signaling events. | ||||||
AZD8330 | 869357-68-6 | sc-364425 sc-364425A | 5 mg 10 mg | $255.00 $450.00 | ||
AZD8330 is an orally active MEK inhibitor that indirectly influences H-Ras activation by targeting the MAPK pathway downstream of Ras. Similar to CI-1040, AZD8330 disrupts the phosphorylation cascade that follows H-Ras activation, affecting downstream signaling events. | ||||||
Sorafenib | 284461-73-0 | sc-220125 sc-220125A sc-220125B | 5 mg 50 mg 500 mg | $57.00 $100.00 $250.00 | 129 | |
Sorafenib is a multi-kinase inhibitor that indirectly influences H-Ras activation by targeting various signaling pathways downstream of Ras. This compound inhibits kinases involved in the RAF/MEK/ERK cascade and other signaling pathways connected to H-Ras. By disrupting multiple pathways, | ||||||