SMILES string
O=C(CCSSC1=CC=CC=N1)NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCC(ON2C(CCC2=O)=O)=O
form
oil
mol wt
912.07
reaction suitability
reagent type: cross-linking reagent
storage condition
desiccated
solubility
water: soluble
shipped in
ambient
storage temp.
−20°C
General description
SPDP-type reagents have an amine-reactive N-hydroxysuccinimide (NHS) ester at one end and a suflhydryl-reactive 2-pyridyldithio group at the opposite end. PEG12-SPDP has a 12-unit polyethylene glycol spacer arm, which confers greater solubility to the crosslinker and linked proteins compared to crosslinkers having only hydrocarbon spacers. Pyridyldithiol reagents produce disulfide-containing linkages that can be cleaved with reducing agents such as dithiothreitol (DTT). Crosslinking experiments with SPDP reagents are not limited to those involving proteins. Any of a variety of molecules with primary amines and sulfhydryl groups can be modified or crosslinked using an SPDP reagent
Features and Benefits
- Reactive groups: NHS ester and pyrirdyldithiol
- Efficient amine conjugation—NHS ester provides effective conjugation to lysines, N-termini of peptides and other primary amines
- Reversible sulfhydryl conjugation—pyridyldithiol group enables disulfide linkage with reduced cysteines and other sulfhydryl groups, providing a stable but cleavable bond
- Polyethylene glycol—PEG groups are flexible, non-immunogenic, hydrophilic, and often enhance the solubility of attached molecules
- Spacer arm—connects primary amines and sulfhydryl targets at distances up to 54.1 angstroms; compare to PEG4-SPDP (25.7 angstroms)
Disclaimer
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.
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
法规信息
新产品
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A R Neurath et al.
Journal of virological methods, 3(3), 155-165 (1981-10-01)
A solid-phase enzyme-linked immunoassay using a fluorogenic substrate (4-methylumbelliferyl-beta-D-galactopyranoside) was developed. Antibodies were covalently linked to glutaraldehyde-activated 96-well aminopolystyrene plates. Antigens from test samples were adsorbed to the solid phase and detected using antibodies conjugated with E. coli beta-galactosidase. Glutaraldehyde
Preparation of antibody-toxin conjugates.
A J Cumber et al.
Methods in enzymology, 112, 207-225 (1985-01-01)
J Carlsson et al.
The Biochemical journal, 173(3), 723-737 (1978-09-01)
A heterobifunctional reagent, N-succinimidyl 3-(2-pyridyldithio)propionate, was synthesized. Its N-hydroxysuccinimide ester group reacts with amino groups and the 2-pyridyl disulphide structure reacts with aliphatic thiols. A new thiolation procedure for proteins is based on this reagent. The procedure involves two steps.
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