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 $164
Biocytin
[ε - Biotinoyl - L - lysine]
100 mg AS-60638 $108
Biotin C2 maleimide 25 mg AS-60643 $125
Biotin cadaverine
[N - (5 - Aminopentyl)biotinamide, trifluoroacetic acid salt]
25 mg AS-60648 $125
Biotin - 4 - fluorescein 10 mg AS-60654 $139
Biotin - X NTA
[Biotin - X nitrilotriacetic acid, tripotassium salt]
5 mg AS-60655 $125
Fluorescein biotin
[5 - ((N - (5 - (N - (6 - (Biotinoyl)amino)hexanoyl)amino)pentyl)thioureidyl) fluorescein]
5 mg AS-60656 $141
HiLyteᵀᴹ Fluor Labeled Streptavidin Sampler Kit 1 kit AS-72003-20 $113
N - (Biotinoyl) - N'' - (iodoacetyl)ethylenediamine 25 mg AS-60644 $141
SensoLyte ® Biotin Quantitation Kit *Fluorimetric* 1 kit AS-72163 $235
Sensolyte ® HABA Biotin Quantification Kit 1 kit AS-72096-500 $460
Sensolyte ® HABA Biotin Quantification Kit 1 kit AS-72096-120 $177
Streptavidin 5 mg AS-60659 $167
Streptavidin 100 mg AS-60659-100 $1333
Streptavidin Europium labeled 50 g AS-72252-50 $407
Streptavidin Europium labeled 100 g AS-72252-100 $657
Streptavidin, 5 - TAMRA conjugated 1 mg AS-60670 $146
Streptavidin, 5 - TAMRA conjugated 1 mg AS-60670 $146
Streptavidin, B - phycoerythrin conjugated 0.5 mg AS-60662 $140
Streptavidin, B - phycoerythrin conjugated 0.5 mg AS-60662 $140
Streptavidin, crosslinked allophycocyanin conjugated 0.2 mg AS-60663 $140
Streptavidin, FITC conjugated 1 mg AS-60659-FITC $133
Streptavidin, FITC conjugated 1 mg AS-60659-FITC $133
Streptavidin, HiLyteᵀᴹ Fluor 488 conjugated 1 mg AS-60665 $175
Streptavidin, HiLyteᵀᴹ Fluor 488 conjugated 1 mg AS-60665 $175
Streptavidin, HiLyteᵀᴹ Fluor 555 conjugated 1 mg AS-60666 $175
Streptavidin, HiLyteᵀᴹ Fluor 555 conjugated 1 mg AS-60666 $175
Streptavidin, HiLyteᵀᴹ Fluor 647 conjugated 1 mg AS-60667 $175
Streptavidin, HiLyteᵀᴹ Fluor 647 conjugated 1 mg AS-60667 $175
Streptavidin, HiLyteᵀᴹ Fluor 750 conjugated 1 mg AS-60659-H750 $91
Streptavidin, HRP conjugated 1 mg AS-60668 $198
Streptavidin, HRP conjugated 1 mg AS-60668 $198
Streptavidin, R - phycoerythrin conjugated 0.5 mg AS-60669 $140
Streptavidin, R - phycoerythrin conjugated 0.5 mg AS-60669 $140
Streptavidin, recombinant 5 mg AS-72177-5 $167
Streptavidin, recombinant 1 g AS-72177-1000 $4422
Streptavidin, recombinant 500 mg AS-72177-500 $2764
Streptavidin, recombinant 100 mg AS-72177-100 $1333
TMR Biocytin
[5 - (and - 6) - Tetramethylrhodamine biocytin]
5 mg AS-60658 $141
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