1 Result for "

SRB-2 aptamer

" in MedChemExpress (MCE) Product Catalog:
Products (1)

1 Results for "SRB-2 aptamer" in MCE Product Catalog:

Cat. No.: HY-D3416
Synonyms: TAMRA-2,4-dinitroaniline
Target:  

Fluorescent Dye

Research Areas:  

Others

TMR-DN (TAMRA-2,4-dinitroaniline) is a fluorescent probe for RNA imaging that consists of a covalently coupled fluorophore (5-carboxy tetramethylrhodamine (TMR)) and quencher (dinitroaniline (DN)). The Kd value of TMR-DN with SRB-2 is 35 nM, and its Kd value with RhoBAST is approximately 30 nM. TMR-DN has a contact quenching function and forms a non-fluorescent intramolecular ground-state dimer in the free state; the excitation/emission wavelengths of the free probe are Ex/Em = 557/579 nm, those of the complex formed by binding to SRB-2 are Ex/Em = 561/587 nm, and those of the probe bound to the DNB aptamer are Ex/Em = 555/582 nm. TMR-DN reduces non-specific binding to genomic nucleic acids via negatively charged carboxyl-functionalized aromatic rings. Fluorescence dequenching occurs when TMR-DN specifically binds to SRB-2, RhoBAST or the DNB aptamer, among which the binding of RhoBAST requires Mg 2+ for proper folding .
loading...
    loading...