Collection: Protein Structural Analysis

Protein Structural Analysis — includes reactive fluorescent reagents such as maleimide, coumarin, and bromobimane derivatives that bind selectively to thiol or amine groups on proteins. This group is used to label specific amino acid residues to study protein structure and conformation.

Protein Structural Analysis reagents are used by biochemistry and structural biology researchers to label cysteine or lysine residues on proteins before analysis by spectrofluorometry, electrophoresis, or mass spectrometry. Compounds such as N-(1-Pyrenyl)maleimide and Bromobimane help observe changes in protein folding and the accessibility of thiol groups under different experimental conditions.

Example products in this collection: TCI B4220 71418-44-5 Bromobimane, TCI C2479 92557-80-7 5-Carboxyfluorescein N-Succinimidyl Ester, TCI S0960 96735-88-5 N-Succinimidyl 7-Hydroxy-4-methylcoumarin-3-acetate, TCI F0026 3326-32-7 Fluorescein 5-Isothiocyanate (isomer I), TCI S0867 150321-92-9 N-Succinimidyl 7-Methoxycoumarin-3-carboxylate, TCI F0783 18861-78-4 Fluorescein 6-Isothiocyanate (isomer II), TCI S0866 134471-24-2 N-Succinimidyl 7-Hydroxycoumarin-3-carboxylate, TCI F0810 75350-46-8 Fluorescein-5-maleimide (contains 2% N,N-Dimethylformamide at maximum).

Pay attention to the specificity of the label's reactive group, for example maleimide for thiols or NHS esters for amines, as well as the excitation-emission wavelength characteristics so they match the available detection instruments. All products are genuine Tokyo Chemical Industry (TCI) Japan products, with purity, packaging, and storage conditions listed on each item's page.

Other parallel categories under Fluorescent Labels, often used together in one laboratory workflow:

• Fluorescent Indicators and Fluorescent Probes
• Donors and Acceptors for FRET
• Fluorescence Quenchers

Back to Fluorescent Labels. For large-volume procurement, special packaging, or specific grades, contact the AMI Scientific team — the official TCI Japan distributor in Indonesia — to check availability and lead time directly from Japan.