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Chemical Synthesis: Proteos scientists have over two decade's experience in
peptide synthesis using advanced automated solid-phase instrumentation. Our products
include custom peptides with unusual constituents, as well as routine peptides. For
example, we have wide experience in making custom peptides having unique amino acids,
blocking groups, purification handles, chromophoric or fluorogenic substituents for
detection and assay development, and transition-state inserts, to name a few.
Recombinant Expression: We also have experience in recombinant production
of peptides >30 amino acids expressed as fusion proteins in E. coli. These recombinant
products are at a high level of purity relative to those made by chemical synthesis,
and can also be made in fairly large quantities.
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