Protein Modification Reagents
Creative Pegworks DSPE-PEG-COOH, MW 2K 50MG
DSPE-PEG-COOH is a linear heterobifunctional PEGylation reagent with a DSPE phospholipid and a carboxylic acid. It is a useful self-assembling reagent to prepare PEGylated liposome or micelle while also providing a COOH group for conjugation with amine-containing molecules.50mg CREATIVE PEGWORKS mfg# PLS-9912
Medchemexpress LLC 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-(PEG2000) (ammonium salt) | 474922-26-4 | 99.96% | 2790.52 | (C2H4O)nC44H87N2O10P.NH3 | 5MG
DSPE-PEG(2000) Amine is an amine-terminated PEGylated phospholipid used to functionalize liposomes and lipid nanoparticles for surface conjugation and targeted delivery. The hydrophobic DSPE tail anchors the molecule in lipid bilayers, while the PEG2000 spacer provides steric stabilization and improved colloidal stability; the terminal primary amine enables covalent coupling to activated esters, dyes, linkers, or targeting ligands.
- Amine-terminated PEGylated phospholipid for surface functionalization.
- Hydrophobic tail anchors stably in lipid bilayers.
- Peg spacer provides steric stabilization and reduces aggregation.
- Terminal primary amine enables covalent coupling chemistries.
- Offered as an ammonium salt in powder and solution forms.
- High purity suitable for research use (supplier-stated ~99.96%).
- Store at -20°C; soluble in chloroform:methanol mixtures.
Enzo Life Sciences Caspase-6 (human), (recombinant) (5000 U)
Alternative name: Mch2. Concentration: 100 U/µl. Purity: ≥80% (SDS-PAGE). Formulation: Liquid. In 50mM HEPES, pH 7.4, containing 100mM sodium chloride, 0.5% CHAPS, 1mM EDTA, 10% glycerol and 10mM DTT. Source: Produced in E. coli. Long Term Storage: -80°C.
CONJU PROBE LLC DBCO-PEG4-Amine | 1255942-08-5 | MFCD22380748 | 100 mg
DBCO-PEG4-Amine | Purity: >95% | Mol Wt: 523.62 | 1255942-08-5 | MFCD22380748 | 100 mg
Electron Microscopy Sciences Pepsin Reagent Ready To Use 100 ML
Pepsin is used for proteolytic digestion of formalin-fixed paraffin-embedded (FFPE) tissue sections prior to application of antibodies. In IHC most commonly used fixative like formalin mask tissue antigens (cellular, membrane and nuclear) by cross-linking process, this results in poor or no staining in IHC. Pepsin digestion of FFPE tissue section improves accessibility of antibodies to tissue antigens.
Store in temperature of 2-8 degree C. DO NOT FREEZE.
Intended Use: Use as antigen retriever for some antibodies in IHC. Please refer to primary antibody protocol for IHC.
Broadpharm TRI-(PROPARGYL-PEG2-ETHOXY 100
Tri-(Propargyl-PEG2-ethoxymethyl)-methane-amido-PEG3-carboxylate 100mg
Avanti Polar Lipids DSPE-PEG(2000) BIOTIN 1,2-50MG
DSPE-PEG(2000) Biotin1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[biotinyl(polyethylene glycol)-2000] (ammonium salt), 50MG
Gold Biotechnology Inc Proteinase K, RNase/DNase free 1 g
Proteinase K is a highly reactive nonspecific serine protease that belongs to the subtilisin family of proteins. It cleaves at the carboxylic acid side of aliphatic, aromatic, or hydrophobic amino acids. Proteinase K is capable of inactivating RNases and DNases and is used in the isolation or preparation of high molecular weight nucleic acids. Proteinase K is also useful for helping to characterize enzymes, due to its cleavage specificity. This enzyme was designated proteinase K because of its ability to hydrolyze keratin. Proteinase K is stable in a wide variety of detergents and buffer salts and at various temperatures and pH. The isoelectric point of proteinase K is 8.9.
Gold Biotechnology Inc DTT (Dithiothreitol) (> 99% pure) Protease free 25 g
Dithiothreitol (DTT) is the common name of the more popular of the two Cleland’s Reagents (the other being Dithioerythritol or DTE). DTT is a powerful reducing agent that forms a stable six-membered ring with an internal disulfide bond which is resistant to oxidation. DTT is often used for the following: reducing the disulfide bridge of the cross-linker N,N′-bis(acryloyl) cystamine to break apart the matrix of a polyacrylamide gel, the reduction of disulfide bonds in proteins, the prevention of those bonds from forming between cysteine residues and lastly, DTT is often used to reduce thiolated DNA in order to minimize dimerization.