Waters MassPREP E. coli Digest Standard

Product Description

The MassPREP E.coli digestion standard (MPDS E.coli) is intended to provide a complex biological matrix for producing samples used to train new users of the Waters Protein Expression System. MPDS E. coli was prepared by digesting a purified E. coli cytosolic protein fraction with sequencing grade trypsin. The MPDS mixture is purified, and does not contain undigested protein, trypsin, or very hydrophilic components such as salts.

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