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Protein expression systems make it very easy to sensitively detect various proteins used widely in bioanalytics and molecular biology. Fluorophores or certain vitamins are used to tag antibodies or other proteins, and these labeled molecules can then be purified or detected using other solutions such as streptavidin or monomeric avidin. These protein expression systems are optimized for the rapid synthesis of functionally active proteins.

Protein expression systems make it very easy to sensitively detect various proteins used widely in bioanalytics and molecular biology. Fluorophores or certain vitamins are used to tag antibodies or other proteins, and these labeled molecules can then be purified or detected using other solutions such as streptavidin or monomeric avidin. These protein expression systems are optimized for the rapid synthesis of functionally active proteins.


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Description: free base can be directly coupled to activated carboxylic acid groups without using an additional base.
Catalog Number: 89139-660
Supplier: Biotium


Description: Like TS biotin ethylenediamine (92010) TS biotin-XX ethylenediamine is a highly selective thiol labeling probe. The XX spacer should facilitate better interaction between biotin and avidin or streptavidin.
Catalog Number: 89139-804
Supplier: Biotium


Catalog Number: 77392-732
Supplier: CUBE BIOTECH


Description: can be easily converted to the mixed anhydride form, which is more reactive than the succinimidyl ester and thus can be used to react with aromatic amines or sterically hindered amines.
Catalog Number: 89139-606
Supplier: Biotium


Description: The Biotin SE Protein Labeling Kit includes everything required to label proteins with biotin. Sufficient for three labelings of 1 mg protein each.
Catalog Number: 89411-598
Supplier: Biotium


Description: is a water soluble biotin derivative that can be readily coupled to thiols.
Catalog Number: 89139-724
Supplier: Biotium


Catalog Number: 77392-754
Supplier: CUBE BIOTECH


Description: MTSEA biotin-X selectively labels thiols in the cell surface under mild condition. The X-spacer should facilitate better biotin-avidin or streptavidin interaction than MTSEA biotin (90064).
Catalog Number: 89139-632
Supplier: Biotium


Description: Biotin-12 SE is an amine-reactive biotin derivative with a long spacer group. This product can be conjugated to AA-dUTP or AA-UTP to make biotin-16-dUTP or biotin-16-UTP, two important products used in genomic studies.
Catalog Number: 89139-668
Supplier: Biotium


Description: MTSEA biotin-XX (90066) is supplied in a 50 mg unit size.
Catalog Number: 89139-638
Supplier: Biotium


Description: Like TS biotin ethylenediamine (92010) TS biotin-X ethylenediamine is a highly selective thiol labeling probe. The X spacer should facilitate better interaction between biotin and avidin or streptavidin.
Catalog Number: 89139-802
Supplier: Biotium


Catalog Number: 101641-564
Supplier: New England Biolabs (NEB)

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Description: Biotin-PEO4-propionate succinimidyl ester is a water soluble biotin derivative that can be readily coupled to primary or secondary amines.
Catalog Number: 89139-644
Supplier: Biotium


Description: biotin-X cadaverine (90061), and biotin ethylenediamine (90057) can be coupled to carboxylic acids, DNA and other biomolecules.
Catalog Number: 89139-626
Supplier: Biotium


Description: is a water soluble biotin derivative that can be readily coupled to activated carboxylic acids.
Catalog Number: 89139-642
Supplier: Biotium


Catalog Number: 77392-722
Supplier: CUBE BIOTECH