ATTO-labeled secondary antibodies represent a new generation of fluorescent reagents, distinguished by their exceptional fluorescence intensity, superior photostability, and reliability in diverse applications. Goat Anti-Guinea Pig IgG ATTO430LS is notable for its large Stokes shift of 109 nm, providing excellent separation between excitation and emission wavelengths. This feature makes it particularly well-suited for multiplexing approaches, enabling precise signal discrimination when used alongside fluorophores with overlapping spectra.
The ATTO430LS dye exhibits a distinct excitation/emission spectrum (λex: 436 nm, λem: 545 nm) with a long Stokes shift, providing excellent compatibility with UV-excitable systems and minimizing spectral overlap in multiplex imaging setups. Its strong fluorescence signal and low autofluorescence background make it highly effective in detecting low-abundance targets and achieving precise spatial resolution, even in dense or complex biological samples.
The antibody is preservative-free, making it compatible with a wide range of applications, including live-cell imaging and other sensitive techniques. Its strong fluorescence signal, minimal non-specific binding, and enhanced photostability ensure high performance in demanding experimental conditions, such as complex tissue samples or dynamic live-cell environments.
Specification
Immunofluorescence: 1:500–1:1500, Degree of Labeling (DOL): 2-9, Unconjugated dye ≤5% of total fluorescence.
Optical Properties
λex: 436 nm, λem: 545 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) ATTO430LS
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.