SBAP is a sulfhydryl-reactive and amine-reactive heterobifunctional crosslinker. The reagent′s NHS ester reacts with primary amines at pH 7-9 to form stable amide bonds, and the bromacetyl reacts with sulfhydryl groups at pH >7.5 to form stable thioether bonds This reagent is useful for preparing cyclic peptides and peptide conjugates because the spacer maintains peptide-like character in the crosslinked species.
特徴および利点
Reactive groups: NHS ester and bromoacetyl
Reactive toward: amino and sulfhydryl groups
NHS ester reacts with primary amines at pH 7-9 to form a stable amide bond
Bromacetyl group reacts with sulfhydryl groups at pH > 7.5 to form stable thioether bonds
Non-cleavable
Water-insoluble (dissolve first in DMF or DMSO)
Spacer maintains peptide-like character in the crosslinked species
Resulting crosslink is susceptible to acid hydrolysis
Useful for preparing cyclic peptides and peptide conjugates
注意
This product is sensitive to moisture. The vial is packaged in a resealable bag with a desiccant to reduce exposure to moisture. After cold storage, equilibrate the vial to room temperature before opening to reduce condensation inside the vial. Make fresh solutions. Storage of stock solutions is not recommended. After use, return the vial to the resealable bag. Close the bag and store the product at the recommended temperature.
A new amino acid derivative, N alpha-(tert-butoxycarbonyl)-N epsilon-[N-(bromoacetyl)-beta-alanyl]-L-lysine (BBAL), has been synthesized as a reagent to be used in solid-phase peptide synthesis for introducing a side-chain bromoacetyl group at any desired position in a peptide sequence. The bromoacetyl group subsequently