Protein Mass Spectrometry

Trypsin, Proteomics Grade

 SOLu-Trypsin, Advanced Proteomics Grade

Solution Stable Enzyme for Mass Spectrometry

SOLu-Trypsin (EMS0004) is our exclusive, Advanced Proteomics Grade enzyme that is solution stable for mass spectrometry. Designed to be stable in solution when refrigerated, SOLu-Trypsin can be used immediately without preparation. Other forms of trypsin require thawing or reconstitution, and must be discarded if not used immediately. SOLu-Trypsin allows excess product to be saved for future use, thus eliminating unnecessary waste and cost. SOLu-Trypsin is formulated with a high-purity recombinant trypsin, free of chymotryptic activity, to ensure high fidelity digestion.

Features & Benefits:

  • Ready to use - no preparation, such as reconstitution or thawing, is required
  • Fits seamlessly into established workflow - no need to modify protocols
  • Eliminates waste - remains stable in the refrigerator after use so there is no need to discard excess product
  • Recombinant, porcine sequence - no chymotryptic activity
  • Stable for short-term use at room temperature in an autosampler or on a liquid handling robot

Read our evaluation of SOLu-Trypsin in the lab

We have been using SOLu-Trypsin for our discovery proteomics projects for several months and have been very impressed with the results. Combined with the convenience of a ready-to-go solution and fridge storage, it’s the perfect trypsin for us.” - Dr. Ben Crossett, Associate Director, Sydney Mass Spectrometry, The University of Sydney


Product No. Product Name Size
EMS0004 SOLu-Trypsin, Proteomics Grade, recombinant 100µg or 4x100µg
EMS0005 SOLu-Trypsin Dimethylated, Proteomics Grade, recombinant 100µg or 4x100µg
MSKT0002 SOLu-Trypsin Rapid Digestion Kit 1KT


 Trypsin, Proteomics Grade

Superior Sequence Coverage Without Ambiguous Peaks!

Proteomics Grade Trypsin (T6567) shows higher proteolytic efficiency than competitors' products, generating more tryptic peptides leading to greater sequence coverage of your proteins of interest. Mass spectra are significantly simplified due to the reduced number of interfering autolytic peaks and their ambiguous adducts. (Concerns over the lack of internal calibrant peaks at low mass may be addressed by calibrating on matrix peaks that routinely appear in the mass spectrum under normal circumstances.)

Proteomics Grade Trypsin has been extensively purified from porcine pancreas to enable accurate and precise cleavage on the carboxylic acid side of Arg and Lys residues. The enzyme has been exhaustively processed by reductive methylation to minimize autolysis and chymotryptic activity quenched by TPCK (N-Tosyl-L-phenylalanine chloromethyl ketone) treatment. Further purification steps including affinity chromatography and lyophilization from dilute acid produce a highly-purified, high specific activity trypsin purposely suited for the demanding criteria of proteomics research, and is designed to function for either in-solution or in-gel digests. The enzyme is conveniently packaged in five 20 µg vials to ensure fresh enzyme is available for each use.

Features & Benefits:

  • Highly purified. Eliminates contaminant peaks and non- tryptic fragments from spectra.
  • Stabilized form retains high specific activity. Complete digest with less protease for economy and confidence in spectra.
  • Application document included with in-gel digest example. Save time in methods training and development.
  • Convenient packaging. Save time and reduce waste by using only amount needed.
Product No. Product Name Size
T6567 Trypsin, Proteomics Grade 5 x 20 µg

 Trypsin Profile IGD Kit

Fast, Efficient, Complete Digestion, from PAGE to MALDI.

Trypsin Profile IGD KitThe Trypsin IGD Kit (PP0100) enables fast, efficient, and complete in-gel tryptic digest of up to 100 excised protein spots. Digested proteins are ready for MALDI-MS and require no additional preparation. Because the Trypsin IGD Kit contains Proteomics Grade Trypsin, a higher sequence coverage and fewer ambiguous autolytic peaks are observed in MALDI spectra.

The Trypsin IGD Kit contains Proteomics Grade Trypsin and is optimized for polyacrylamide gels stained with Coomassie, SYPRO® Orange or Ruby dyes. If silver staining is used, ProteoSilver™ Plus silver staining kit is recommended (Product No. PROT-SIL2).

Features & Benefits:

  • Includes highly purified Proteomics Grade Trypsin. Trypsin displays only minimal autolytic activity and no chymotryptic activity, which simplifies resulting peptide analysis.
  • Detailed protocol. Easy to follow protocol simplifies the process.
  • Works with Coomassie, SYPRO Orange, SYPRO Ruby or ProteoSilver Stained gels. Allows user a choice of staining methods.
  • Resulting samples are suitable for analysis by MALDI-MS. No further processing needed, saves time.


  • Proteomics Grade Trypsin
  • Destaining Solution
  • Trypsin Reaction Buffer
  • Biotech Grade Acetonitrile
  • Trypsin Solubilization Reagent
  • Peptide Extraction Solution


TrypsinA solution of 2.5 mg/mL E. coli in Cellular and Organelle Membrane Solubilizing Reagent of ProteoPrep™ Total Extraction Sample Kit (Product No. PROT-TOT) was sonicated, then reduced with tributyl phosphine and alkylated with iodoacetamide (Product No. PROTRA). 109 µg of protein was loaded on a 7 cm, pH 4-7 IPG strip (Product No. I2906), focused for 50,000 volt hours, then run on a 4-20% Tris-Glycine SDS PAGE gel at 150 volts for 70 min. The gel was then stained with EZBlue (Product No. G1041). A random spot was then excised and tryptically digested using the ProteoProfile Typsin In-Gel Digest Kit (Product No. PP0100).




The sample was desalted using a ZipTip™ C18 pipette tip from Millipore and eluted directly onto the MALDI target using the MALDI matrix (a-cyano-4-hydroxycinnamic acid, 10 mg/mL in 70% ACN, 0.03% TFA). MALDI analysis was performed in the reflection positive ion mode. The resulting monoisotopic masses were searched against the NCBI database at a tolerance of 150 ppm. The protein was identified as outer membrane protein 3a from E. coli with the matched peptides providing 30% sequence coverage.


Product No. Product Name Size
PP0100 Trypsin Profile IGD Kit 1 kit

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