Fluorescent Dyes  >  Biotins, Avidins and Streptavidins
The avidin/streptavidin-biotin interaction is the strongest known non-covalent biological interaction (Kd=10-15M-1) between a protein and its ligand. The bond formation between biotin and avidin/streptavidin is very rapid and, once formed, is unaffected by pH, organic solvents and other denaturing agents. The avidin-biotin complex can even withstand 3 M guanidine. Both avidin and streptavidin have essentially irreversible biotin-binding properties since bound biotin can only be released by denaturing the subunits of the proteins. The tight and specific binding of biotin and its derivatives to various avidins has been extensively explored for a number of biological applications.
 Product Size Catalog # US$  
AnaPrep™ Biotin Blocking Kit 1 kit 72162 $121
ARP
[N - (Aminooxyacetyl) - N'''' - (D - biotinoyl) hydrazine, trifluoroacetic acid salt]
10 mg 60645 $159
Biocytin
[ε - Biotinoyl - L - lysine]
100 mg 60638 $105
Biocytin hydrazide 25 mg 60647 $121
Biotin C2 maleimide 25 mg 60643 $121
Biotin cadaverine
[N - (5 - Aminopentyl)biotinamide, trifluoroacetic acid salt]
25 mg 60648 $121
Biotin - 4 - fluorescein 10 mg 60654 $121
Biotin - X cadaverine
[5 - (((N - (Biotinoyl)amino) hexanoyl)amino)pentylamine, trifluoroacetic acid salt]
10 mg 60651 $121
Biotin - X NTA
[Biotin - X nitrilotriacetic acid, tripotassium salt]
5 mg 60655 $121
Biotin - XX, SE
6 - ((6 - ((Biotinoyl)amino)hexanoyl)amino) hexanoic acid, succinimidyl ester; Biotin - XX, NHS ester
25 mg 60640 $66
Fluorescein biotin
[5 - ((N - (5 - (N - (6 - (Biotinoyl)amino)hexanoyl)amino)pentyl)thioureidyl) fluorescein]
5 mg 60656 $137
HiLyte™ Fluor Labeled Streptavidin Sampler Kit 1 kit 72003-20 $93
HiLyte™ Fluor Labeled Streptavidin Sampler Kit 1 kit 72003-200 $181
N - (Biotinoyl) - N'' - (iodoacetyl)ethylenediamine 25 mg 60644 $137
Sensolyte® HABA Biotin Quantification Kit 1 kit 72096-500 $360
Sensolyte® HABA Biotin Quantification Kit 1 kit 72096-120 $139
SensoLyte® Biotin Quantitation Kit *Fluorimetric* 1 kit 72163 $193
Streptavidin 5 mg 60659 $154
Streptavidin 100 mg 60659-100 $1320
Streptavidin 500 mg 60659-500 $2750
Streptavidin 1 g 60659-1000 $4400
Streptavidin, 5 - FAM conjugated 1 mg 60664 $132
Streptavidin, 5 - TAMRA conjugated 1 mg 60670 $132
Streptavidin, alkaline phosphatase conjugated 0.5 mg 60660 $132
Streptavidin, B - phycoerythrin conjugated 0.5 mg 60662 $121
Streptavidin, crosslinked allophycocyanin conjugated 0.2 mg 60663 $121
Streptavidin, FITC conjugated 1 mg 60659-FITC $121
Streptavidin, HiLyte™ Fluor 405 labeled 1 mg 60672-H405 $159
Streptavidin, HiLyte™ Fluor 488 conjugated 1 mg 60665 $159
Streptavidin, HiLyte™ Fluor 555 conjugated 1 mg 60666 $159
Streptavidin, HiLyte™ Fluor 594 conjugated 1 mg 60672-H594 $159
Streptavidin, HiLyte™ Fluor 647 conjugated 1 mg 60667 $159
Streptavidin, HiLyte™ Fluor 680 conjugated 1 mg 60659-H680 $88
Streptavidin, HiLyte™ Fluor 750 conjugated 1 mg 60659-H750 $83
Streptavidin, HRP conjugated 1 mg 60668 $171
Streptavidin, R - phycoerythrin conjugated 0.5 mg 60669 $121
Streptavidin, recombinant 5 mg 72177-5 $154
Streptavidin, recombinant 1 g 72177-1000 $4400
Streptavidin, recombinant 500 mg 72177-500 $2750
Streptavidin, recombinant 100 mg 72177-100 $1320
TMR Biocytin
[5 - (and - 6) - Tetramethylrhodamine biocytin]
5 mg 60658 $137
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