logo
AAT Bioquest

iFluor® 860-streptavidin conjugate

AAT Bioquest's iFluor® dyes are optimized for labeling proteins, in particular, antibodies. These dyes are bright, photostable and have minimal quenching on proteins. They can be well excited by the major laser lines of fluorescence instruments (e.g., 350, 405, 488, 555 and 633 nm). Streptavidin conjugates are widely used together with a conjugate of biotin for specific detection of a variety of proteins, protein motifs, nucleic acids and other molecules since streptavidin has a very high binding affinity for biotin. A variety of the complementary biotinylated reagents are available from numerous commercial vendors. This iFluor® 860-streptavidin conjugate comprises streptavidin (as the biotin-binding protein) with iFluor® 860 covalently attached (as the fluorescent label). It is commonly used as a second step reagent for indirect immunofluorescent staining, when used in conjunction with biotinylated primary antibodies. iFluor® 860-streptavidin conjugates has fluorescence excitation and emission maxima of ~852 nm and ~877 nm respectively. These spectral characteristics make it an excellent alternative to IRDye® 800CW (IRDye® 800CW is the trademark of Li-COR) due to its much longer excitation wavelength (making it much more tissue-penetrating than IRDye® 800CW). It is a very valuable tool for biotin-streptavidin-based biological assays and tests.

Spectrum

Product family

NameExcitation (nm)Emission (nm)Extinction coefficient (cm -1 M -1)Quantum yieldCorrection Factor (260 nm)Correction Factor (280 nm)
iFluor® 350-streptavidin conjugate3454502000010.9510.830.23
iFluor® 405-streptavidin conjugate4034273700010.9110.480.77
iFluor® 488-streptavidin conjugate4915167500010.910.210.11
iFluor® 514-streptavidin conjugate5115277500010.8310.2650.116
iFluor® 532-streptavidin conjugate5375609000010.6810.260.16
iFluor® 555-streptavidin conjugate55757010000010.6410.230.14
iFluor® 594-streptavidin conjugate58760320000010.5310.050.04
iFluor® 633-streptavidin conjugate64065425000010.2910.0620.044
iFluor® 647-streptavidin conjugate65667025000010.2510.030.03
iFluor® 680-streptavidin conjugate68470122000010.2310.0970.094
iFluor® 700-streptavidin conjugate69071322000010.2310.090.04
iFluor® 750-streptavidin conjugate75777927500010.1210.0440.039
iFluor® 546-streptavidin conjugate54155710000010.6710.250.15
iFluor® 568-streptavidin conjugate56858710000010.5710.340.15
iFluor® 790-streptavidin conjugate78781225000010.1310.10.09
iFluor® 800-streptavidin conjugate80182025000010.1110.030.08
iFluor® 820-streptavidin conjugate82285025000010.110.16
iFluor® 840-streptavidin conjugate8368792000001-0.20.09
Show More (9)

Citations

View all 15 citations: Citation Explorer
Streptavidin interfacing as a general strategy to localize fluorescent membrane tension probes in cells
Authors: Goujon, A., Strakova, K., Sakai, N., Matile, S.
Journal: Chem Sci (2019): 310-319
Streptavidin cooperative allosterism upon binding biotin observed by differential changes in intrinsic fluorescence
Authors: Waner, M. J., Hiznay, J. M., Mustovich, A. T., Patton, W., Ponyik, C., Mascotti, D. P.
Journal: Biochem Biophys Rep (2019): 127-131
Aptamer Structure Switch Fluorescence Anisotropy Assay for Small Molecules Using Streptavidin as an Effective Signal Amplifier Based on Proximity Effect
Authors: Li, Y., Zhao, Q.
Journal: Anal Chem (2019): 7379-7384
Design and Fabrication of Streptavidin-Functionalized, Fluorescently Labeled Polymeric Nanocarriers
Authors: Jo, A., Zhang, R., Allen, I. C., Riffle, J. S., Davis, R. M.
Journal: Langmuir (2018): 15783-15794
Streptavidin-conjugated gold nanoclusters as ultrasensitive fluorescent sensors for early diagnosis of HIV infection
Authors: Kurdekar, A. D., Avinash Chunduri, L. A., Manohar, C. S., Haleyurgirisetty, M. K., Hewlett, I. K., Venkataramaniah, K.
Journal: Sci Adv (2018): eaar6280

References

View all 1 references: Citation Explorer
Aluminum phthalocyanine-streptavidin: new, sensitive fluorescent tracer for immunoassay
Authors: Kelly TA, Hunter CA, Schindele DC, Pepich BV.
Journal: Clin Chem (1991): 1283
Page updated on October 11, 2024

Ordering information

Price
Unit size
Catalog Number16979
Quantity
Add to cart

Additional ordering information

Telephone1-800-990-8053
Fax1-800-609-2943
Emailsales@aatbio.com
InternationalSee distributors
Bulk requestInquire
Custom sizeInquire
Technical SupportContact us
Purchase orderSend to sales@aatbio.com
ShippingStandard overnight for United States, inquire for international
Request quotation

Physical properties

Molecular weight

~52000

Solvent

Water

Spectral properties

Correction Factor (260 nm)

0.1

Correction Factor (280 nm)

0.14

Extinction coefficient (cm -1 M -1)

2500001

Excitation (nm)

853

Emission (nm)

878

Storage, safety and handling

Intended useResearch Use Only (RUO)

Storage

Freeze (< -15 °C); Minimize light exposure
AAT Bioquest's bright and photostable iFluor® dyes cover the entire spectrum of UV, Vis and IR from 200 to 900 nm. They can be well excited by the major laser lines of fluorescence instruments (e.g., 350, 405, 488, 555, 633, 647 and 860 nm). iFluor® dye-labeled streptavidin conjugates are widely used together with a conjugate of biotin for specific detection of a variety of proteins, protein motifs, nucleic acids and other molecules since streptavidin has a very high binding affinity for biotin.
AAT Bioquest's bright and photostable iFluor® dyes cover the entire spectrum of UV, Vis and IR from 200 to 900 nm. They can be well excited by the major laser lines of fluorescence instruments (e.g., 350, 405, 488, 555, 633, 647 and 860 nm). iFluor® dye-labeled streptavidin conjugates are widely used together with a conjugate of biotin for specific detection of a variety of proteins, protein motifs, nucleic acids and other molecules since streptavidin has a very high binding affinity for biotin.
AAT Bioquest's bright and photostable iFluor® dyes cover the entire spectrum of UV, Vis and IR from 200 to 900 nm. They can be well excited by the major laser lines of fluorescence instruments (e.g., 350, 405, 488, 555, 633, 647 and 860 nm). iFluor® dye-labeled streptavidin conjugates are widely used together with a conjugate of biotin for specific detection of a variety of proteins, protein motifs, nucleic acids and other molecules since streptavidin has a very high binding affinity for biotin.