Experience and Innovation for targeted protein quantification.
Promise Proteomics provides both stable isotope labelled proteins (SIL proteins) and custom LC-MS assay development for the absolute quantification of proteins in biological samples.

Benefits
Key Benefits of Promise Proteomics stable isotope labelled proteins:
– High protein purity & isotopic incorporation
– Flexibility in peptide selection
– Same sequence as native protein
– Equivalent digestion kinetics to target
– Identical to analyte in sample processing
– For use in complex sample matrices
– Highly stable
– Catalogue & custom options available

Products
MS Wil offers Promise Proteomics proteins in the following categories:
Click here to visit our online catalog, and request your quote.
Neurodegenerative diseases
Description | Application | Quantity | |
Synuclein Alpha – Labelled (Lys) 13C15N | Quantification of synuclein in preclinical or clinical samples | 10µg/tube | Request quote |
Synuclein Alpha – Unlabelled | Recombinant human alpha-synuclein. Can be used for calibration curves. | 50µg/tube | Request quote |
Synuclein Beta- Labelled U15N | Quantification of synuclein beta in preclinical and clinical samples This product is for research use only and is not intended for diagnostic or therapeutic use. | 10µg/tube | Request quote |
Synuclein Gamma – Labelled U15N | Quantification of synuclein gamma in preclinical and clinical samples | 10µg/tube | Request quote |
Tau 352 – Labelled U15N | Quantification of human Tau isoforms in preclinical or clinical samples | 10µg/tube | Request quote |
Tau 441 – Labelled (Arg, Lys) 13C15N | Quantification of human Tau isoforms in preclinical or clinical samples | 10µg/tube | Request quote |
Tau 441 – Unlabelled | Quantification of human Tau isoforms in preclinical or clinical samples | 50µg/tube | Request quote |
For all products within this category, click here to visit our catalog and request your quote.
RAS proteins
Description | Application | Quantity | |
KRAS 2B G12C mutant – Labelled (Arg, Lys) 13C15N | Quantification of human RAS proteins and KRAS G12C mutant | 10µg/tube | Request quote |
KRAS 2B G12C mutant – Unlabelled | Quantification of KRAS G12C mutant | 50µg/tube | Request quote |
KRAS 2B G12C/C118A mutant – Unlabelled | Quantification of human RAS proteins and KRAS G12C/C118G mutant | 50µg/tube | Request quote |
KRAS 2B G12C/C51S/C80L/C118S – Unlabelled | Quantification of human RAS proteins and KRAS 2B G12C/C51S/C80L/C118S in clinical and preclinical samples | 50µg/tube | Request quote |
KRAS 2B G12D mutant – Labelled (Arg, Lys) 13C15N | Quantification of human RAS proteins and KRAS 2B G12D mutant in clinical and preclinical samples | 10µg/tube | Request quote |
KRAS 2B G13C mutant – Labelled (Arg, Lys) 13C15N | Quantification of human RAS proteins and KRAS 2B G13C mutant in clinical and preclinical samples | 10µg/tube | Request quote |
KRAS 2B G13D mutant – Labelled (Arg, Lys) 13C15N | Quantification of human RAS proteins and KRAS 2B G13D mutant in clinical and preclinical samples | 10µg/tube | Request quote |
KRAS 2A – Labelled U15N | Quantification of human RAS proteins and KRAS 2A in clinical and preclinical samples | 10µg/tube | Request quote |
KRAS 2A – Unlabelled | Quantification of human RAS proteins and KRAS 2A in clinical and preclinical samples | 50µg/tube | Request quote |
NRAS – Labelled U15N | Quantification of human NRAS in preclinical and clinical samples | 10µg/tube | Request quote |
NRAS – Unlabelled | Quantification of human NRAS in preclinical and clinical samples | 50µg/tube | Request quote |
KRAS 2B – Unlabelled | Quantification of human RAS proteins and KRAS 2B in clinical and preclinical samples | 50µg/tube | Request quote |
For all products within this category, click here to visit our catalog and request your quote.
Kidney biomarker
Description | Application | Quantity | |
Albumin – Labelled U15N | Quantification of human albumin in preclinical or clinical samples | 10µg/tube | Request quote |
Choriogonadotropin – Labelled (Arg, Lys) 13C15N | Quantification of human Choriogonadotropin in preclinical or clinical samples | 10µg/tube | Request quote |
For all products within this category, click here to visit our catalog and request your quote.
Cardiovascular diseases
Description | Application | Quantity | |
APO A1 – Labelled U15N | Quantification of Human Apolipoprotein A1 | 10µg/tube | Request quote |
APO E3 – Labelled U15N | Quantification of human Apolipoprotein E3 | 10µg/tube | Request quote |
APO E3 – Unlabelled | Quantification of human Apolipoprotein E3 | 50µg/tube | Request quote |
NT-proBNP – Labelled (Arg, Lys) 13C15N | Quantification of human NT-proBNP in clinical and preclinical samples | 10µg/tube | Request quote |
NT-proBNP – Unlabelled | Quantification of human NT-proBNP in clinical and preclinical samples | 50µg/tube | Request quote |
Troponin I – Labelled U15N | Quantification of Human Troponin I | 10µg/tube | Request quote |
For all products within this category, click here to visit our catalog and request your quote.
Peptide hormones
Description | Application | Quantity | |
Growth hormone 22 – Labelled (Arg, Lys) 13C15N | Quantification of growth hormone in preclinical or clinical samples | 10 – 20 – 50 µg/tube | Request quote |
Growth hormone 22 – Labelled U15N | Quantification of growth hormone in preclinical or clinical samples | 10 – 20 – 50 µg/tube | Request quote |
Growth hormone 22 – Unlabelled | Quantification of growth hormone in preclinical or clinical samples | 100µg/tube | Request quote |
For all products within this category, click here to visit our catalog and request your quote.
Sepsis
Description | Application | Quantity | |
Procalcitonin – Labelled (Arg, Lys) 13C15N | Quantification of procalcitonin in clinical or preclinical samples. | 10µg/tube | Request quote |
Procalcitonin – Labelled U15N | Quantification of procalcitonin in clinical or preclinical samples. | 10µg/tube | Request quote |
Procalcitonin – Unlabelled | Quantification of procalcitonin in clinical or preclinical samples. | 50µg/tube | Request quote |
For all products within this category, click here to visit our catalog and request your quote.
Other
Description | Application | Quantity | |
Alpha Feto Protein – Labelled (Arg, Lys) 13C15N | Quantification of Alpha Feto Protein (AFP) | 10µg/tube | Request quote |
APO A1 – Unlabelled | Quantification of Human Apolipoprotein A1 | 50µg/tube | Request quote |
Carboxypeptidase B2 – Labelled (Arg, Lys) 13C15N | Quantification of human Carboxypeptidase B2 | 10µg/tube | Request quote |
Clusterin protein – Labelled (Arg, Lys) 13C15N | Quantification of human Clusterin | 10µg/tube | Request quote |
Cystatin C – Labelled U15N | Quantification of Cystatin C | 10µg/tube | Request quote |
Cystatin C – Unlabelled | Quantification of Cystatin C | 50µg/tube | Request quote |
Erythropoietin – Labelled (Arg, Lys) 13C15N | Quantification of human Erythropoietin | 10µg/tube | Request quote |
Neurofilament – Labelled (Arg, Lys) 13C15N | Quantification of human Neurofilament protein | 10µg/tube | Request quote |
Neurofilament – Unlabelled | Quantification of Human Neurofilament | 50µg/tube | Request quote |
Vitamin D binding Protein – Labelled (Arg, Lys) 13C15N | Quantification of human Vitamin D Binding Protein | 10µg/tube | Request quote |
For all products within this category, click here to visit our catalog and request your quote.
For more information on Promise Proteomics, click here.