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QXY7 acid [equivalent to QSY-7 acid]
QXY7 is the same molecule to QSY-7 acid (ThermoFisher). QXY7 has a broad and intense absorption at ~550 nm maxima with no detectable fluorescence, making it useful as an acceptor in fluorescence resonance energy transfer (FRET) applications paring with Cy3, TAMRA, Alexa Fluor 555, iFluor 647 or other spectrally similar fluorescent dyes.
Spectrum
Product family
| Name | Excitation (nm) | Emission (nm) | Extinction coefficient (cm -1 M -1) | Quantum yield | Correction Factor (280 nm) | Correction Factor (260 nm) |
| ICG acid | 789 | 813 | 230000 | - | 0.076 | - |
| Cy3NS acid *CAS 1032678-01-5* | 555 | 569 | 1500001 | 0.151 | 0.073 | 0.07 |
| Cy5NS acid | 651 | 670 | 2500001 | 0.271, 0.42 | 0.03 | 0.02 |
| Cy7NS acid | 756 | 779 | 250000 | 0.3 | 0.036 | 0.05 |
| AMCA acid *CAS#: 106562-32-7* | 346 | 434 | 19000 | - | 0.153 | - |
| EDANS acid [5-((2-Aminoethyl)amino)naphthalene-1-sulfonic acid] *CAS 50402-56-7* | 336 | 455 | 5900 | - | 0.107 | - |
| EDANS acid [5-((2-Aminoethyl)amino)naphthalene-1-sulfonic acid] | 336 | 455 | 5900 | - | 0.107 | - |
| DABCYL acid [4-((4-(Dimethylamino)phenyl)azo)benzoic acid] *CAS 6268-49-1* | - | - | - | - | 0.516 | - |
| BCECF acid *CAS#: 85138-49-4* | 504 | 527 | 90000 | - | - | - |
Show More (15) | ||||||
References
View all 14 references: Citation Explorer
Structural exploration and Förster theory modeling for the interpretation of gas-phase FRET measurements: Chromophore-grafted amyloid-β peptides.
Authors: Kulesza, Alexander and Daly, Steven and MacAleese, Luke and Antoine, Rodolphe and Dugourd, Philippe
Journal: The Journal of chemical physics (2015): 025101
Authors: Kulesza, Alexander and Daly, Steven and MacAleese, Luke and Antoine, Rodolphe and Dugourd, Philippe
Journal: The Journal of chemical physics (2015): 025101
Action-FRET: probing the molecular conformation of mass-selected gas-phase peptides with Förster resonance energy transfer detected by acceptor-specific fragmentation.
Authors: Daly, Steven and Poussigue, Frédéric and Simon, Anne-Laure and MacAleese, Luke and Bertorelle, Franck and Chirot, Fabien and Antoine, Rodolphe and Dugourd, Philippe
Journal: Analytical chemistry (2014): 8798-804
Authors: Daly, Steven and Poussigue, Frédéric and Simon, Anne-Laure and MacAleese, Luke and Bertorelle, Franck and Chirot, Fabien and Antoine, Rodolphe and Dugourd, Philippe
Journal: Analytical chemistry (2014): 8798-804
A time-resolved, internally quenched fluorescence assay to characterize inhibition of hepatitis C virus nonstructural protein 3-4A protease at low enzyme concentrations.
Authors: Mao, Shi-Shan and DiMuzio, Jillian and McHale, Carolyn and Burlein, Christine and Olsen, David and Carroll, Steven S
Journal: Analytical biochemistry (2008): 1-8
Authors: Mao, Shi-Shan and DiMuzio, Jillian and McHale, Carolyn and Burlein, Christine and Olsen, David and Carroll, Steven S
Journal: Analytical biochemistry (2008): 1-8
Fluorescence-based sensing of glucose using engineered glucose/galactose-binding protein: a comparison of fluorescence resonance energy transfer and environmentally sensitive dye labelling strategies.
Authors: Khan, Faaizah and Gnudi, Luigi and Pickup, John C
Journal: Biochemical and biophysical research communications (2008): 102-6
Authors: Khan, Faaizah and Gnudi, Luigi and Pickup, John C
Journal: Biochemical and biophysical research communications (2008): 102-6
Longer wavelength fluorescence resonance energy transfer depsipeptide substrates for hepatitis C virus NS3 protease.
Authors: Konstantinidis, Alex K and Richardson, Paul L and Kurtz, Kevin A and Tripathi, Rakesh and Chen, Chih-Ming and Huang, Peggy and Randolph, John and Towne, Danli and Donnelly, Jennifer and Warrior, Usha and Middleton, Tim and Kati, Warren M
Journal: Analytical biochemistry (2007): 156-67
Authors: Konstantinidis, Alex K and Richardson, Paul L and Kurtz, Kevin A and Tripathi, Rakesh and Chen, Chih-Ming and Huang, Peggy and Randolph, John and Towne, Danli and Donnelly, Jennifer and Warrior, Usha and Middleton, Tim and Kati, Warren M
Journal: Analytical biochemistry (2007): 156-67
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