Sigma® Life Science

AQUA™ Peptides

Developed in collaboration with the Protein Quantitation Consortium, Sigma’s AQUA Peptides enable accurate, efficient mass spectrometric quantitation of protein biomarkers.

 

  • Focus your analysis on significant protein biomarkers
  • Accurately quantitate low abundance proteins
  • Eliminate costly, time consuming stable isotope labeling steps
  • Measure site-specific phosphorylation states
  • Validate gene silencing at the protein level

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Custom Peptide Library | PEPscreen®

Reveal Your Target of Interest

Experience affordable and fast delivery of custom peptide libraries for target identification. The PEPscreen peptide library is configured in a convenient plate format, perfect for screening applications, epitope mapping and peptide microarray production.
PEPscreen Kit

 

Design

Design your library with ease using our convenient design tool. It enables you to design overlapping peptide fragment libraries, alanine scanning libraries, truncation libraries, and positional scanning libraries.

You’ll be able to:

  • Set custom sequence parameters (peptide length and amino acid offset)
  • Format the sequence output
  • Export the custom peptide library sequences (MS Word, Excel, etc.)

Benefits

We have developed a proprietary custom peptide synthesis platform utilizing Fmoc chemistry, providing a solution to enhance peptide screening applications. Using this technology we can provide high-quality peptide libraries with:

 

  • Low variability: Completely automated synthesis eliminates errors
  • Fast delivery: Receive your library in less than 7 business days!
  • Unsurpassed flexibility: Include multiple peptide lengths and designs in a single library
  • Easy-to-use formatting: Individual tubes are in 96-well format making it compatible with high-throughput robotic assays and eliminates cross-contamination. Individual tubes are triple-labeled for maximum user flexibility

Product Specifications

  • Amount: 0.5 – 2mg; 2mg – 5mg
  • Purity level: unpurified
  • Sequence length: 6 – 20mers
  • Modifications available
  • QC: MALDI-MS on 100% of peptides
  • Format: supplied dried in 96-well tube rack
  • Manufacturing Time: 4 – 7 business days
  • Minimum order size: 24 peptides

Custom Peptides Synthesis

High-quality synthetic peptides

What we offer::

• Peptide-Protein Conjugation
• Multiple Disulfide bridges
• Special Amino Acids and their derivatives
• Peptide modification with C-terminal Biotin, AMC, Aldehyde, CMK
• Chromogenic/Fluorogenic Substrates
• Quantities from 1 mg to kg
• Phosphorylated/sulfated peptides
• Peptide length up to 120AA
• Purity from Crude to 98%
• Solid Phase/Solution Phase