Mfg Part Number
QBD-11630-25
Vector Labs QBD-11630-25 Bis-MAL-Lysine-dPEG®₄-dPEG®₁₂-Tris(-dPEG®₂₄-acid)₃ - 25 mg (1/EA)
Quick Overview
Bis-MAL-Lysine-dPEG₄-dPEG₁₂-Tris(m-dPEG₂₄)₃ - 100 mg
$413.17
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Bis-MAL-Lysine-dPEG®4-dPEG®12-Tris(-dPEG®24 acid)3, product number QBD-11630, is a unique product from Vector Laboratories. It consists of a carboxylic-acid terminated, branched dPEG® construct built around a tris core and functionalized with a short dPEG® linker that contains two thiol-reactive maleimide groups attached to lysine. The dPEG® spacers are 152 and 156 atoms, with average lengths of 113.0 and 115.4 Å. The tris-core branched portion of this product is designed to modify the pharmacodynamics (PD), pharmacokinetics (PK), and biodistribution (BD) of conjugated biomolecules, while the bis-maleimide moiety is designed to bridge disulfide bonds by forming stable thioether bonds through the thiol-maleimide reaction.
This product is designed for modifying biomolecules like antibodies and antibody fragments but can be used in any bioconjugate application where free thiols are available for reaction. The two maleimide groups can bridge a reduced disulfide bond through the thiol-maleimide reaction, forming stable thioether bonds. Potential product applications include reducing or eradicating renal clearance, extending in vivo circulating half-life, and suppressing immune responses to conjugates. Users should note that the free carboxylates on the three long arms of the molecule may alter the charge of conjugates formed with Bis-MAL-Lysine-dPEG®4-dPEG®12-Tris(-dPEG®24 acid)3.
Vector Laboratories’ dPEG® technology provides high-quality, single molecular weight, discrete chain-length PEG (dPEG®) products for bioconjugation in therapeutic, diagnostic, and clinical research applications. Unlike traditional, non-uniform polymer PEGs, dPEG® products are synthesized in stepwise fashion from high-purity starting materials. The amphiphilic dPEG® construct imparts hydrophilicity to conjugates, reduces or eliminates the conjugates’ antigenicity, and increases the hydrodynamic volume of conjugated molecules. With increased hydrodynamic volume, the renal clearance of conjugate molecules is reduced or eliminated. Moreover, optimization of the conjugate molecule’s BD, PK, and PD is possible.
| Brand | Vector Labs |
|---|---|
| UNSPSC | 12161700 |
| Reagent Application | Bioconjugation |
| Reagent Size | 25 mg |