Tryptic Peptides
The need for absolute quantitation of protein expression levels in biological samples is of major importance in proteomics. The simplest and most cost-effective method of protein quantification involves the use of peptides containing amino acids incorporating heavy stable isotopes.
By using stable-labelled versions of tryptic peptides as internal standards, it is possible to directly quantify protein levels in a digested sample via mass spectrometry.
We supply heavy and light versions of common tryptic peptides ready to use in 1x 25 nmol tubes as detailed below:
If your desired tryptic peptide is not listed please refer to our custom synthesis page and request a custom peptide synthesis quotation.
Showing 17–32 of 233 results
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Angiotensin 1-5 dual Heavy
DR-[U-13C5,15N-Val]-Y-[U-13C6,15N-Ile]-acid
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Angiotensin 1-5 Heavy
DRVY-[U-13C6,15N-Ile]-acid
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Angiotensin 1-7 dual Heavy
DR-[U-13C5,15N-Val]-Y-[U-13C6,15N-Ile]-HP-acid
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Angiotensin 1-7 Heavy Ile
DRVY-[U-13C6,15N-Ile]-HP-acid
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Angiotensin II dual Heavy
DR-[U-13C5,15N-Val]-Y-[U-13C6,15N-Ile]-HPF-acid
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Angiotensin II Heavy
DRVY-[U-13C6,15N-Ile]-HPF-acid
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Annexin A5 (194-201) HeavyFITIFGT-[U-13C6,15N4-Arg]-acid
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Annexin A5 (277-285) HeavySEIDLFNI-[U-13C6,15N4-Arg]-acid
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Annexin A5 (30-45) HeavyGLGTDEESILTLLTS-[U-13C6,15N4-Arg]-acid
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APOA4 (135-143) HeavyLEPYADQ-[U-13C6,15N-Leu]-R-acid
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APOA4 (280-287) HeavyGNTEG-[U-13C6,15N-Leu]-QK-acid
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Apolipoprotein A-I (APOA1) (185-195) HeavyTHLAP-Y-SDEL-[U-13C6,15N4-Arg]-acid
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Apolipoprotein AI (62-77) HeavyEQLGP-[U-13C5,15N-Val]-TQEFWDNLEK-acid
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Apolipoprotein B-100 (APOB100) (1108-1118) HeavySEI-[U-13C6,15N-Leu]-AHWSPAK-acid
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Apolipoprotein B-100 (APOB100) (3764-3772) HeavyFPEVDV-[U-13C6,15N-Leu]-TK-acid
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Apolipoprotein B-100 (APOB100) (4187-4195) HeavyEE-[U-13C6,15N-Leu]-[Cys(Cam)]-TMFIR-acid
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