Fluorescent Dyes  >  Biotins 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$  
ARP
[N - (Aminooxyacetyl) - N'''' - (D - biotinoyl) hydrazine, trifluoroacetic acid salt]
10 mg AS-60645 $159
Biocytin
[ε - Biotinoyl - L - lysine]
100 mg AS-60638 $105
Biotin C2 maleimide 25 mg AS-60643 $121
Biotin cadaverine
[N - (5 - Aminopentyl)biotinamide, trifluoroacetic acid salt]
25 mg AS-60648 $121
Biotin - 4 - fluorescein 10 mg AS-60654 $121
Biotin - X NTA
[Biotin - X nitrilotriacetic acid, tripotassium salt]
5 mg AS-60655 $121
Fluorescein biotin
[5 - ((N - (5 - (N - (6 - (Biotinoyl)amino)hexanoyl)amino)pentyl)thioureidyl) fluorescein]
5 mg AS-60656 $137
HiLyte™ Fluor Labeled Streptavidin Sampler Kit 1 kit AS-72003-20 $103
N - (Biotinoyl) - N'' - (iodoacetyl)ethylenediamine 25 mg AS-60644 $137
Sensolyte® HABA Biotin Quantification Kit 1 kit AS-72096-500 $417
Sensolyte® HABA Biotin Quantification Kit 1 kit AS-72096-120 $161
SensoLyte® Biotin Quantitation Kit *Fluorimetric* 1 kit AS-72163 $224
Streptavidin 100 mg AS-60659-100 $1320
Streptavidin 5 mg AS-60659 $162
Streptavidin Europium labeled  NEW 50 µg AS-72252-50 $395
Streptavidin Europium labeled  NEW 100 µg AS-72252-100 $650
Streptavidin, 5 - TAMRA conjugated 1 mg AS-60670 $139
Streptavidin, B - phycoerythrin conjugated 0.5 mg AS-60662 $133
Streptavidin, crosslinked allophycocyanin conjugated 0.2 mg AS-60663 $133
Streptavidin, FITC conjugated 1 mg AS-60659-FITC $127
Streptavidin, HiLyte™ Fluor 488 conjugated 1 mg AS-60665 $167
Streptavidin, HiLyte™ Fluor 555 conjugated 1 mg AS-60666 $167
Streptavidin, HiLyte™ Fluor 647 conjugated 1 mg AS-60667 $167
Streptavidin, HiLyte™ Fluor 750 conjugated 1 mg AS-60659-H750 $87
Streptavidin, HRP conjugated 1 mg AS-60668 $189
Streptavidin, R - phycoerythrin conjugated 0.5 mg AS-60669 $133
Streptavidin, recombinant 5 mg AS-72177-5 $162
Streptavidin, recombinant 1 g AS-72177-1000 $4400
Streptavidin, recombinant 500 mg AS-72177-500 $2750
Streptavidin, recombinant 100 mg AS-72177-100 $1320
TMR Biocytin
[5 - (and - 6) - Tetramethylrhodamine biocytin]
5 mg AS-60658 $137
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