Protein Labeling Reagents
Medchemexpress LLC Cyanine2 | 260430-02-2 | 98.0% | 418.49 g/mol | C25H26N2O4 | 10 MG
Cy2 is a cyanine-class fluorescent dye for labeling biomolecules and fluorescence imaging. It is excited at 488 nm and emits at 515 nm, with high purity and good solubility in DMSO; store protected from light at -20°C as a solid, or in solution at -80°C for long-term storage.
Vector Laboratories Sambucus Nigra Lectin (SNA, EBL) Fluorescein-labeled 2 mg
Sambucus nigra lectin (SNL) is isolated from elderberry bark and binds preferentially to sialic acid attached to terminal galactose in a-2,6 and to a lesser degree, a-2,3 linkage. Also called SNA (Sambucus nigra agglutinin) and EBL (elderberry lectin), SNL can inhibit cell-free protein synthesis. Binding is also inhibited to some extent by lactose or galactose. This lectin does not appear to bind sialic acid linked to N-acetylgalactosamine. SNA has been reported to inhibit cell-free protein synthesis. This fluorescein-labeled SNL features a ratio of fluorophores to lectin protein that provides optimal staining (excitation 495 nm, emission 515 nm). Supplied as a solution essentially free of unconjugated fluorophores, it is preserved with sodium azide. The recommended inhibiting/eluting sugar is 500 mM lactose in buffered saline followed by 500 mM lactose in acetic acid.
Sigma Aldrich Fine Chemicals Biosciences Mix-n-StainTM CfTM 647 Ant
This labeling kit is for labeling 50-100 mug antibody with the far red fluorescent dye Cf647. Mix-n-Stain Cf dye antibody labeling kits are a revolutionary antibody labeling technology that permits one to label antibodies with our superior Cf dyes in 30 minutes without a purification step. The labeling procedure tolerates many common buffer components and antibody stabilizers. Cf647 is far-red fluorescent dye and one of an outstanding series of Cf dyes. Cf647 is spectrally similar to Alexa fluor(R) 647 and Cy(R)5 dyes. Cf dyes are superior to Alexa fluor(R) dyes and Cy(R) dyes for antibody labeling by having combined advantages in brightness photostability specificity and novel features ideal for in vivo imaging.
Sigma Aldrich Fine Chemicals Biosciences Atto MB2 NHS ester Methyle1MG
Atto MB2 NHS ester is a derivative of the well-known redox dye Methylene Blue. The dye can be reversibly reduced to the colorless leuko form. Upon oxidation (e.g. with oxygen) the dye recovers and the absorption is fully restored.The dye is suitable for labeling of DNA RNA proteins etc. In common with most Atto-labels the dye shows a high extinction coefficient.Atto MB2 NHS ester is moderately hydrophilic.find more information here
Sigma Aldrich Fine Chemicals Biosciences Phalloidin Atto 565 suitab
Atto 565 is a novel fluorescent label that belongs to the class of Rhodamine dyes. It shows a strong absorption high fluorescence quantum yield high thermal and photostability and a very little triplet formation. Atto 565 consists of a mixture of two isomers with practically identical optical absorption and emission Phalloidin is a fungal toxin isolated from the poisonous mushroom Amanita phalloides. Its toxicity is attributed to the ability to bind f actin in liver and muscle cells. As a result of binding phalloidin actin filaments become strongly stabilized. Phalloidin has been found to bind only to polymeric and oligomeric forms of actin and not to monomeric actin. The dissociation constant of the actin-phalloidin complex has been determined to be on the order of 3 x 10-8. Phalloidin differs from amanitin in rapidity of action at high dose levels death of mice or rats occurs within 1 or 2 hours. fluorescent conjugates of phalloidin are used to label actin filaments for histolo
Sigma Aldrich Fine Chemicals Biosciences Phalloidin Atto 647N BioRe
PHALLOIDIN Phalloidin Atto 647N BioRe
Sigma Aldrich Fine Chemicals Biosciences Atto 550 NHS ester BioReag1MG
ATTO Atto 550 NHS ester BioReag1MG
Medchemexpress LLC Fam azide, 5-isomer | 510758-23-3 | 95.0% | 458.42 | C24H18N4O6 | 5mg
FAM azide 5-isomer is a Click Chemistry labeling reagent
Medchemexpress LLC Biotin-PEG4-dialkoxydiphenylsilane-picolyl azide | 2599839-59-3 | 95.0% | 978.24 | C47H67N9O10SSi | 5 MG
Biotin-PEG4-dialkoxydiphenylsilane-picolyl azide is a clickable, acid-cleavable biotin-picolyl azide reagent designed for labeling and enrichment of cell-surface glycoproteins. It contains an azide functionality for bioorthogonal conjugation and is compatible with both copper-catalyzed azide-alkyne cycloaddition (CuAAC) and strain-promoted alkyne-azide cycloaddition (SPAAC), supplied as a solid for research applications.
- Clickable azide functional group for CuAAC and SPAAC reactions.
- Acid-cleavable dialkoxydiphenylsilane linker enables controlled release after enrichment.
- Biotin tag enables affinity enrichment using streptavidin or avidin systems.
- PEG4 spacer improves solubility and reduces steric hindrance during conjugation.
- High purity (95.0%) for consistent labeling performance.
- Suitable for proteomics workflows targeting cell-surface glycoproteins.
Medchemexpress LLC Sulfo-Cy5.5 Azide | 1955527-41-9 | C44H50N6O13S4 | 5 MG
Sulfo-Cy5.5 Azide is a click chemistry reagent that contains an azide group. It is a water-soluble dye with excitation at 673 nm and emission at 707 nm. It is designed to label sensitive molecules like peptides, proteins, and oligonucleotides. The azide group allows it to undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups, and ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.
- Click chemistry reagent
- Contains an azide group
- Water-soluble dye (Ex=673 nm, Em=707 nm)
- Designed to label sensitive molecules such as peptides, proteins, and oligonucleotides
- Can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with alkyne-containing molecules
- Can undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with DBCO or BCN-containing molecules
Medchemexpress LLC Sulfo-Cy3 Azide | 1801695-56-6 | C35H46N6O10S3 | 5 MG
Sulfo-Cy3 Azide is a water-soluble fluorogenic dye that contains an azide group, facilitating Click Chemistry. This dye is suitable for labeling sensitive molecules, such as proteins.
- Can participate in copper-catalyzed azide-alkyne cycloaddition (CuAAc) with alkyne-containing molecules.
- Can undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.