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Peptide Labeling

  • Image 1
  • Example 1: Biotinylation of a peptide (>99.9% purity by HPLC for a single labeled product)
  • Example 2: Fluorescent labeling of a hydrophobic peptide (>99.9 purity by HPLC for a single labeled product)
Price:
Please contact us for a quote.
SKU:
BL0006


Product Description

Peptides can be labeled using a variety of methods depending on their amino acid composition. The N-terminal amine can be labeled if no internal Lys residues are present in the peptide. The C-terminal acid can be labeled if no Glu and Asp residues are present in the peptide. Artificial amino acids containing a functional group that is orthogonal (non-interfering) to peptide functional groups can be incorporated during the peptide synthesis. Cys can also be added at the N-termini if no Cys residues are present in the peptide to incorporate a thiol functionality.

  • Chemistry: Peptide labeling through N-terminal amine, C-terminal acid, Cys thiol, or other functional groups.
  • Product: Labeled peptide containing single or multiple (depending on customers specifications) small molecules. Product is HPLC purified and usually over 95% pure.
  • Procedure: Labeling of peptide, in-process HPLC analysis, desalting, HPLC purification and lyophilization. Finally concentration determination, HPLC and MS analysis.
  • Price: please contact us for a quote.
  • Starting materials: Please check biopolymer and small molecule for ordering information.

Examples (see images):

  1. Biotin labeling of a peptide on solid phase peptide synthesis at CellMosaic (shown below): over 99.9% pure by HPLC.

    bl001example1-biotinylation.jpg

  2. Fluorescent labeling of a hydrophobic peptide at CellMosaic (shown below): over 99.9% pure by HPLC.

    bl006-example-2-flu.jpg


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