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Tide Fluor™ 7WS maleimide [TF7WS maleimide] *Superior replacement for Cy7*

Fluorescent dye maleimides are the most popular tool for conjugating dyes to a peptide, protein, antibody, thiol-modified oligonucleotide or nucleic acid through their SH group. Maleimides react readily with the thiol group of proteins, thiol-modified oligonucleotides, and other thiol-containing molecules under neutral conditions. The resulting dye conjugates are quite stable.
Fluorescent dye maleimides are the most popular tool for conjugating dyes to a peptide, protein, antibody, thiol-modified oligonucleotide or nucleic acid through their SH group. Maleimides react readily with the thiol group of proteins, thiol-modified oligonucleotides, and other thiol-containing molecules under neutral conditions. The resulting dye conjugates are quite stable.
Ordering information
Price ()
Catalog Number2332
Unit Size
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Additional ordering information
Telephone1-408-733-1055
Fax1-408-733-1304
Emailsales@aatbio.com
InternationalSee distributors
ShippingStandard overnight for United States, inquire for international
Physical properties
Molecular weight~1100
SolventDMSO
Spectral properties
Correction Factor (280 nm)0.049
Extinction coefficient (cm -1 M -1)275000
Excitation (nm)756
Emission (nm)780
Storage, safety and handling
H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22
StorageFreeze (< -15 °C); Minimize light exposure
UNSPSC12171501
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Show More (45)

OverviewpdfSDSpdfProtocol


Molecular weight
~1100
Correction Factor (280 nm)
0.049
Extinction coefficient (cm -1 M -1)
275000
Excitation (nm)
756
Emission (nm)
780
Tide Fluor™ 7WS (TF7WS) family has the spectral properties similar to those of Cy7, IRDye 800 and Alexa Fluor 750. Their fluorescence is pH-independent from pH 3 to 11. These characteristics make this new dye family more robust to pH-sensitive assays. In some cases TF7-labeled peptides and nucleotides exhibit stronger fluorescence and higher photostability than the ones labeled with Cy7, IRDye 800 and Alexa Fluor 750. In pairing with our Tide Quencher™ 7WS (TQ7WS), a variety of FRET peptides and nucleotides can be developed for detecting proteases and molecular beacons with enhanced sensitivity and stability. This TF7WS product is used for post-labeling of thiol-modified oligonucleotides and peptides that contain cysteines.

Spectrum


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spectrum

Spectral properties

Correction Factor (280 nm)0.049
Extinction coefficient (cm -1 M -1)275000
Excitation (nm)756
Emission (nm)780

Citations


View all 7 citations: Citation Explorer
A mechanistic model to predict effects of cathepsin B and cystatin C on β-amyloid aggregation and degradation
Authors: Perlenfein, Tyler J and Murphy, Regina M
Journal: Journal of Biological Chemistry (2017): jbc--M117
Real-Time Detection of a Self-Replicating RNA Enzyme
Authors: Olea, Charles and Joyce, Gerald F
Journal: Molecules (2016): 1310
Maternal serum glycosylated fibronectin as a point-of-care biomarker for assessment of preeclampsia
Authors: Rasanen, Juha and Quinn, Matthew J and Laurie, Amber and Bean, Eric and Roberts, Charles T and Nagalla, Srinivasa R and Gravett, Michael G
Journal: American journal of obstetrics and gynecology (2015): 82--e1
Development of Multi-Parametric/Multimodal Spectroscopy Apparatus for Characterization of Functional Interfaces
Authors: Zhou, Lang and Arugula, Mary and Easley, Christopher J and Shannon, Curtis and Simonian, Aleks and r, undefined
Journal: ECS Transactions (2015): 9--16
Array of biodegradable microrafts for isolation and implantation of living, adherent cells
Authors: Wang, Yuli and Phillips, Colleen N and Herrera, Gabriela S and Sims, Christopher E and Yeh, Jen Jen and Allbritton, Nancy L
Journal: RSC advances (2013): 9264--9272
Development of SNAP-Tag Fluorogenic Probes for Wash-Free Fluorescence Imaging
Authors: Sun, Xiaoli and Zhang, Aihua and Baker, Brenda and Sun, Luo and Howard, Angela and Buswell, John and Maurel, Damien and Masharina, Anastasiya and Johnsson, Kai and Noren, Christopher J and others, undefined
Journal: ChemBioChem (2011): 2217--2226
FERRAMENTAS PARA ESTUDO DA BIOLOGIA DE GPCRS (G-PROTEIN COUPLED RECEPTORS)
Authors: Soriani, Frederico Marianetti and Russo, Remo Castro

References


View all 25 references: Citation Explorer
Time-resolved FRET method for typing polymorphic alleles of the human leukocyte antigen system by using a single DNA probe
Authors: Andreoni A, Bondani M, Nardo L.
Journal: Photochem Photobiol Sci (2009): 1202
Tumor-specific detection of an optically targeted antibody combined with a quencher-conjugated neutravidin "quencher-chaser": a dual "quench and chase" strategy to improve target to nontarget ratios for molecular imaging of cancer
Authors: Ogawa M, Kosaka N, Choyke PL, Kobayashi H.
Journal: Bioconjug Chem (2009): 147
The detection of platelet derived growth factor using decoupling of quencher-oligonucleotide from aptamer/quantum dot bioconjugates
Authors: Kim GI, Kim KW, Oh MK, Sung YM.
Journal: Nanotechnology (2009): 175503
Development of a cell-based hepatitis C virus infection fluorescent resonance energy transfer assay for high-throughput antiviral compound screening
Authors: Yu X, Sainz B, Jr., Uprichard SL.
Journal: Antimicrob Agents Chemother (2009): 4311
An improved cell-penetrating, caspase-activatable, near-infrared fluorescent peptide for apoptosis imaging
Authors: Maxwell D, Chang Q, Zhang X, Barnett EM, Piwnica-Worms D.
Journal: Bioconjug Chem (2009): 702
Feasibility of single nucleotide polymorphism genotyping with a single-probe by time-resolved Forster resonance energy transfer
Authors: Andreoni A, Bondani M, Nardo L.
Journal: Mol Cell Probes (2009): 119
Photodynamic molecular beacon triggered by fibroblast activation protein on cancer-associated fibroblasts for diagnosis and treatment of epithelial cancers
Authors: Lo PC, Chen J, Stefflova K, Warren MS, Navab R, B and archi B, Mullins S, Tsao M, Cheng JD, Zheng G.
Journal: J Med Chem (2009): 358
Rapid detection and quantification of Propionibacteriaceae
Authors: Goldschmidt P, Ferreira CC, Degorge S, Benallaoua D, Boutboul S, Laroche L, Batellier L, Chaumeil C.
Journal: Br J Ophthalmol (2009): 258
Evaluation of tetramethylrhodamine and black hole quencher 1 labeled probes and five commercial amplification mixes in TaqMan real-time RT-PCR assays for respiratory pathogens
Authors: Yang GP, Erdman DD, Tondella ML, Fields BS.
Journal: J Virol Methods (2009): 288
Design of FRET-TaqMan probes for multiplex real-time PCR using an internal positive control
Authors: Jothikumar P, Hill V, Narayanan J.
Journal: Biotechniques (2009): 519