SysQuan Core Database

Fast, large-scale absolute quantification for human samples. Unlike traditional methods requiring expensive synthetic peptides for each target, SysQuan uses metabolically K6-labeled mouse tissues with pre-quantified proteins. Simply mix your human samples with our standardized mouse tissue extracts to achieve absolute quantification across the entire proteome.

How to Use:

Search for proteins by gene name, UniProt accession, or peptide sequence
Filter by tissue type or assay availability (MRM, PRM-PASEF)
Select peptides to add them to your cart
Access MRM/PRM transitions, calibration curves, and observed peptide spectra
Download assay data

Available Data:

Optimized MRM & PRM-PASEF transitions for targeted MS
Absolute quantification calibration curves (fmol/μg)
Observed peptide MS/MS spectra from mouse tissues
Multi-tissue coverage across mouse organs

Use the SysQuan Kit: Pre-quantified K6-labeled mouse tissue extracts ready to spike into your human samples for rapid absolute quantification—no need for expensive synthetic peptide standards!

Uniprot ID	Gene	Peptide Sequence	Tissue	Mouse Conc. (fmol/μg)	Incorp. (%)	Assays Available	PTM
P45974	USP5	IGEWELIQESGVPLKPLFGPGYTGIR	Spleen	—	100.0	None	—
P45974	USP5	LGHGLLSGEYSK	Heart	—	100.0	None	—
P45974	USP5	LGHGLLSGEYSK	kidney	—	100.0	None	—
P45974	USP5	WVIYNDQK	Heart	—	100.0	None	—
P45974	USP5	WVIYNDQK	liver	—	100.0	None	—
P45983	MAPK8	ISVDEALQHPYINVWYDPSEAEAPPPK	kidney	—	100.0	None	—
P45983	MAPK8	LFPDVLFPADSEHNK	Heart	—	100.0	None	—
P45983	MAPK8	LFPDVLFPADSEHNK	kidney	—	100.0	None	—
P45983	MAPK8	LFPDVLFPADSEHNK	liver	—	100.0	None	—
P45983	MAPK8	LFPDVLFPADSEHNK	lung	—	100.0	None	—
P45983	MAPK8	LFPDVLFPADSEHNK	Spleen	—	100.0	None	—
P45983	MAPK8	NIIGLLNVFTPQK	Heart	—	100.0	None	—
P45983	MAPK8	NIIGLLNVFTPQK	liver	—	100.0	None	—
P45983	MAPK8	NIIGLLNVFTPQK	Spleen	—	100.0	None	—
P45983	MAPK8	TYVENRPK	kidney	—	100.0	None	—
P45984	MAPK9	DLKPSNIVVK	kidney	—	100.0	None	—
P45984	MAPK9	EHAIEEWK	Heart	—	100.0	None	—
P45984	MAPK9	EHAIEEWK	liver	—	100.0	None	—
P45984	MAPK9	LSRPFQNQTHAK	kidney	—	100.0	None	—
P45984	MAPK9	LSRPFQNQTHAK	lung	—	100.0	None	—
P45984	MAPK9	NIISLLNVFTPQK	Heart	—	100.0	None	—
P45984	MAPK9	NIISLLNVFTPQK	liver	—	100.0	None	—
P45984	MAPK9	NIISLLNVFTPQK	Spleen	—	100.0	None	—
P45984	MAPK9	NYVENRPK	lung	—	100.0	None	—
P45985	MAP2K4	ISPEQHWDFTAEDLK	liver	—	100.0	None	—
P45985	MAP2K4	WNSVFDQLTQVVK	Heart	—	100.0	None	—
P45985	MAP2K4	WNSVFDQLTQVVK	kidney	—	100.0	None	—
P45985	MAP2K4	YVYSVLDDVIPEEILGK	dbs	—	100.0	None	—
P45985	MAP2K4	YVYSVLDDVIPEEILGK	Heart	—	100.0	None	—
P45985	MAP2K4	YVYSVLDDVIPEEILGK	liver	—	100.0	None	—
P45985	MAP2K4	YVYSVLDDVIPEEILGK	Spleen	—	100.0	None	—
P46013	MKI67	IQLPVVSK	Spleen	—	100.0	None	—
P46013	MKI67	SGASEANLIVAK	Spleen	—	100.0	None	—
P46013	MKI67	SWADVVK	Spleen	—	100.0	None	—
P46019	PHKA2	AYELEQNVVK	Heart	—	100.0	None	—
P46019	PHKA2	AYELEQNVVK	lung	—	100.0	None	—
P46019	PHKA2	AYELEQNVVK	Spleen	—	100.0	None	—
P46019	PHKA2	HIGVLGTSK	kidney	—	100.0	None	—
P46019	PHKA2	HIGVLGTSK	liver	—	100.0	None	—
P46019	PHKA2	LHYDPAELK	kidney	—	100.0	None	—
P46019	PHKA2	LHYDPAELK	lung	—	100.0	None	—
P46019	PHKA2	NLLHHILSGK	kidney	—	100.0	None	—
P46020	PHKA1	AALEALDELDLFGVK	Heart	—	100.0	None	—
P46020	PHKA1	AALEALDELDLFGVK	kidney	—	100.0	None	—
P46020	PHKA1	AALEALDELDLFGVK	liver	—	100.0	None	—
P46020	PHKA1	AALEALDELDLFGVK	lung	—	100.0	None	—
P46020	PHKA1	AALEALDELDLFGVK	Spleen	—	100.0	None	—
P46020	PHKA1	AYELEQSVVK	kidney	—	100.0	None	—
P46020	PHKA1	AYELEQSVVK	lung	—	100.0	None	—
P46020	PHKA1	IVHIANDLFLQEQK	Heart	—	100.0	None	—

SysQuan Core Database

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