Protein Modification Reagents
Sigma Aldrich Fine Chemicals Biosciences Pepsin from porcine gastric mucosa lyophilized powder, ≥2,500 units/mg protein (E1%/280) | 9001-75-6 | MFCD00081840 | 1g
Pepsin from porcine gastric mucosa lyophilized powder, ≥2,500 units/mg protein (E1%/280) MW: | 9001-75-6 | MFCD00081840 | 1g
NANOSOFT POLYMERS PLL-g-PEG | 50mg
PLL-g-PEG | Number of repeating units of PLL : X=200 | PEG MW: 5000 | Percentage of PEG substitution: 20% | 50mg
Sigma Aldrich Fine Chemicals Biosciences Pepsin from porcine gastric mucosa lyophilized powder, ≥2,500 units/mg protein (E1%/280) | 9001-75-6 | MFCD00081840 | 250mg
Pepsin from porcine gastric mucosa lyophilized powder, ≥2,500 units/mg protein (E1%/280) Purity: MW: | 9001-75-6 | MFCD00081840 | 250mg
Sigma Aldrich Fine Chemicals Biosciences Pepsin from porcine gastric mucosaPurity: 3,200-4,500 units/mg proteinMW: | 9001-75-6 | MFCD00081840 | 250mg
Pepsin from porcine gastric mucosaPurity: 3,200-4,500 units/mg proteinMW: | 9001-75-6 | MFCD00081840 | 250mg
Molecular Dimensions 50% PEG SMEAR BROAD 250ML
PEG is an effective crystallization agent due to its protein-protein interaction promoting properties. The BCS Screen overcomes the impracticality of sampling all PEG varieties that has led to a few variants predominating in the most common screens. PEG Smears are designed primarily for efficient screening of chemical space. It is generally thought that well-defined, single PEG species produce the best diffracting crystals. Thus, optimization might involve identifying the single PEG compound that produces the best crystal for structural studies. MOLECULAR DIMENSIONS INC mfg# MD2-250-261
Broadpharm Palmitic acid-PEG4-NHS ester, 100mg
Palmitic acid-PEG4-NHS ester is a saturated long-chain fatty acid with a 16-carbon backbone and a PEG linker connected to a terminal NHS ester. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The hydrophilic PEG spacer increases solubility in aqueous media.
Creative Pegworks 4-Arm PEG-MAL, MW 5k - 10g
4-Arm PEG-MAL is a multiarmed PEG derivative with maleimide at each terminal of the four arms connected to one pentaerythritol core. Maleimide selectively reacts with free thiol, SH, sulfhydryl, or mercapto group via Michael addition to form a stable thioether bond. PEG-MAL useful for site specific protein and peptide modification. Hydroquinone MEHQ at ~ 200 ppm may be present as inhibitors to prevent self polymerization and partial crosslinking. MEHQ may be removed per customer request.