Optimized for advanced fluorescence imaging, live-cell microscopy, and multiplex assays, containing no preservatives for compatibility with sensitive applications.
ATTO-labeled secondary antibodies are highly advanced fluorescent tools, known for their superior photostability, high quantum yield, and exceptional performance in various fluorescence-based applications. Goat Anti-Guinea Pig IgG ATTO490LS is distinguished by its exceptionally large Stokes shift of 165 nm, enabling excellent separation between excitation and emission wavelengths, making it particularly suitable for multiplexing applications.
This property is particularly valuable for multiplexing approaches, ensuring precise signal discrimination when used with other fluorophores. It performs especially well when used alongside ATTO488- and ATTO514-conjugated antibodies, minimizing spectral overlap and ensuring precise signal separation. The antibody provides remarkable brightness and photostability, ensuring precise and reliable imaging results even under demanding experimental conditions.
The ATTO490LS dye features a large Stokes shift and an excitation/emission spectrum (λex: 490 nm, λem: 515 nm), offering excellent spectral separation, minimizing spectral overlap and autofluorescence for clearer signal detection in multiplexing applications.
This antibody is preservative-free, enabling compatibility with sensitive applications such as live-cell imaging, super-resolution microscopy, and flow cytometry. Its low non-specific binding and robust fluorescence signal ensure reliable target detection in complex biological samples.
Specification
Immunofluorescence: 1:500–1:1500, Degree of Labeling (DOL): 2-9, Unconjugated dye ≤5% of total fluorescence.
Optical Properties
λex: 490 nm, λem: 515 nm
Properties
Form
Lyophilized
Nominal concentration
2 mg/ml (after reconstitution with buffer)
The antibody is shipped in unit sizes of 1.0 mg as a lyophilized powder, shipped at room temperature. To reconstitute the antibody before use, a glycerol buffer is included for convenience. This allows to re-freeze the antibody after use at -20°C, to keep the quality and/or to prepare aliquots, which can be stored at -20
Content
1.0 mg Goat Anti-Guinea Pig IgG (H+L) ATTO490LS
1.0 ml Glycerol buffer (add 0.5 ml to reconstitute the lyophilized antibody)
Buffer: 50% glycerol, 0.01 M sodium phosphate, 0.1 M sodium chloride, pH 7.4
Clonality
Polyclonal
Isotype
IgG
Purification notes
Affinity purification effectively removed all goat serum proteins, including immunoglobulins not specifically binding to guinea pig IgG. After conjugation to the dye, the antibody was further purified by gel filtration, resulting in a highly pure and specific antibody.
Hypermol® secondary antibodies are highly specific and purified to remove unbound dye, minimizing background signal.
Storage instructions
Store as glycerol stock at -20°C. Avoid repeated freeze/thaw cycles.
Shipping conditions
Shipped at ambient temperature.
Remarks
For Use in Research only. Not for Use in Human or Veterinary Diagnostical or Therapeutical Applications.
CAS no.
Buffers and antibodies from Hypermol® are made of the purest reagents in Milli-Q™ water, as described in our publications.
Mechanical signaling coordinates the embryonic heartbeat. Chiou KK, Rocks JW, Chen CY, Cho S, Merkus KE, Rajaratnam A, Robison P, Tewari M, Vogel K, Majkut SF, Prosser BL, Discher DE, Liu AJ. Proc Natl Acad Sci U S A. 2016 Aug 9;113(32):8939-44. doi: 10.1073/pnas.1520428113. Epub 2016 Jul 25.