The KCNQ (Kv7) family of voltage-gated potassium (K+) channels consists of five members, KCNQ1-KCNQ5. KCNQ1-KCNQ5 are critical for setting up the excitation threshold of action potentials. KCNQ1 is expressed mainly in cardiac tissue, peripheral epithelial cells, and smooth muscle cells, while KCNQ2-KCNQ5 are predominantly expressed in the peripheral and central nervous system, including hippocampal cells, cortical cells, and dorsal root ganglion. ML-213 is a selective activator of KCNQ2 (Kv7.2) and KCNQ4 (Kv7.4) channels (EC50s = 230 and 510 nM for KCNQ2 and KCNQ4, respectively) that demonstrates > 80-fold selectivity against other related K+ channels.{24549}
A selective activator of KCNQ2 (Kv7.2) and KCNQ4 (Kv7.4) channels (EC50s = 230 and 510 nM for KCNQ2 and KCNQ4, respectively) that demonstrates > 80-fold selectivity against other related K+ potassium channels
Formal name: N-(2,4,6-trimethylphenyl)-bicyclo[2.2.1]heptane-2-carboxamide
Synonyms: CID-3111211
Molecular weight: 257.4
CAS: 489402-47-3
Purity: ≥98%
Formulation: A crystalline solid
Product Type|Biochemicals|Ion Channel Modulation|Activators||Research Area|Neuroscience
The maintenance of embryonic stem cells in culture typically requires feeder cells and various exogenous factors found in serum. Murine embryonic stem (mES) cells can be maintained in the absence of feeder cells and serum but require the leukemia inhibitor factor (LIF) and bone morphogenic protein (BMP) to prevent differentiation and promote self-renewal. SC-1 is a small molecule activator of stem cell renewal that allows the propagation of OG2 mES cells for at least 10 passages in an undifferentiated state.{14533} The activity of SC-1 is mediated by the combined inhibition of RasGAP and ERK1 with Kd values of 98 and 212 nM, respectively.{14533} Inhibition of RasGAP increases Ras signaling via the PI3-kinase pathway which promotes self-renewal, whereas inhibition of ERK blocks differentiation.
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The PtdIn phosphates play an important role in the generation and transduction of intracellular signals.{8344,4096,14518} PtdIns-(3,4,5)-P3-biotin is an affinity probe which allows the PIP3 to be detected through an interaction with the biotin ligand. This design allows PtdIns-(3,4,5)-P3-biotin to serve as a general probe for any protein with a high affinity binding interaction with inositol-(3,4,5)-triphosphate phospholipids, such as phosphatidylinositol 3-kinase, PTEN, or PH-domain-containing proteins.
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The PtdIn phosphates play an important role in the generation and transduction of intracellular signals.{8344,4096,14518} PtdIns-(3,4,5)-P3-biotin is an affinity probe which allows the PIP3 to be detected through an interaction with the biotin ligand. This design allows PtdIns-(3,4,5)-P3-biotin to serve as a general probe for any protein with a high affinity binding interaction with inositol-(3,4,5)-triphosphate phospholipids, such as phosphatidylinositol 3-kinase, PTEN, or PH-domain-containing proteins.
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The tetracycline repressor (TetR) is a transcriptional regulator which normally binds tightly to its palindromic tetO operator DNA, blocking gene expression.{17508} Tet causes the repressor to dissociate from the DNA, allowing transcription to occur. A novel reverse TetR (revTetR) requires tetracycline as a co-repressor to bind tetO and block transcription.{17509,17510} Anhydrotetracycline (hydrochloride) is a powerful effector in both the tetracycline repressor (TetR) and reverse TetR (revTetR) systems, binding the Tet repressor 35-fold more strongly than Tet.{17508,17511} Moreover, anhydrotetracycline poorly binds the 30S ribosomal subunit, compared to Tet,{17512} so it does not act as a general inhibitor of translation and is a poor antibiotic. Perhaps related to this, the concentration of anhydrotetracycline that inhibits eukaryotic cell growth is more than a 1,000-fold above the dose that alters transcription through TetR.{17508}
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