SPDP (succinimidyl 3-(2-pyridyldithio)propionate)

Catalog number: 21857

Thermo Scientific™  Related applications: Protein Labeling & Crosslinking

Error loading your content!

  Catalog number
Select a plan
Unit size
Price ({{currency}}) Your price ({{currency}}) Availability Qty
{{product.sku}} {{product.sku}}
also known as {{product.formattedSku}} 
{{subscriptionDetails.selectedRatePlan.billingPeriod}} {{subscriptionDetails.selectedRatePlan.billingPeriod}} {{product.availability.message}}
Pro add-ons

Your on-site stock

›› {{supplyCenter.scName}}({{scProduct.stockOnHand}} In stock)
›› {{supplyCenter.scName}}(Out of stock)
›› {{supplyCenter.scName}}
This item is not currently available on-site. Depending on your Supply Center settings you may be able to add the item to cart above else use the Order Non-Stocked Items' tab on the Supply Center home page.
Back to top

Description

Thermo Scientific Pierce SPDP is a short-chain crosslinker for amine-to-sulfhydryl conjugation via NHS-ester and pyridyldithiol reactive groups that form cleavable (reducible) disulfide bonds with cysteine sulfhydryls.

Features of SPDP:

Reactive groups: NHS ester and pyridyldithiol
Reactive towards: amino and sulfhydryl groups
• Releases a detectable by-product when reacted with a free sulfhydryl group; by measuring the release of pyridine-2-thione at 343 nm, the reaction can be easily followed
• Disulfide bond in the spacer arm is readily cleaved by 10-50 mM DTT or TCEP at pH 8.5
• Spacer arm is also easily cleaved using reducing SDS-PAGE sample loading buffer
• Cleavable crosslinker allows separation of crosslinked products
• Water-insoluble (dissolve first in DMF or DMSO)
• SPDP crosslinker is membrane permeable, so crosslinking can be done inside the cells
• Compare to other varieties of SPDP-type reagents, including pegylated forms

Applications:
• Reversible crosslinking of proteins
• Adding sulfhydryl groups to proteins by attachment to lysine residues
• Protein crosslinking to create antibody-enzyme and other bioconjugates via a two-step reaction
• Attaching haptens to carrier proteins for antibody production
• Preparing immunotoxin conjugates

Specifications:
We manufacture SPDP to the highest specification to produce the most specific bioconjugates, ensure the integrity of your data and to provide you with the highest degree of consistency. Each lot of SPDP is tested to ensure it is >95% pure by quantitative NMR (the highest standard for crosslinker purity).

We offer three analogs of SPDP: the standard version (SPDP), a derivative with a longer spacer arm (LC-SPDP), and a sulfonated water-soluble variety (Sulfo-LC-SPDP). SPDP (N-Succinimidyl 3-(2-pyridyldithio)-propionate) and LC-SPDP (Succinimidyl 6-(3-[2-pyridyldithio]-propionamido)hexanoate) are heterobifunctional, thiol-cleavable and membrane permeable crosslinkers. They each contain an amine-reactive N-hydroxysuccinimide (NHS) ester that will react with lysine residues to form a stable amide bond. The other end of the spacer arm is terminated in the pyridyl disulfide group that will react with sulfhydryls to form a reversible disulfide bond.

Product References:
Crosslinker Application Guide -- search for recent literature references for this product

Related Products
Pierce™ Premium Grade SPDP
LC-SPDP (succinimidyl 6-(3(2-pyridyldithio)propionamido)hexanoate)
For Research Use Only. Not for use in diagnostic procedures.

Specifications

Spacer: Short, Cleavable
Solubility: DMF (Dimethylformamide), DMSO (Dimethylsulfoxide)
Product Size: 50 mg
Labeling Method: Chemical Labeling
Crosslinker Type: Heterobifunctional

Contents & storage

Upon receipt product is stored at -20°C to protect it from moisture. Product is shipped at ambient temperature.

Documents

Manuals & protocols

Recommended products