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Please include the following statement when referencing the CPTAC Assay Portal
We would like to acknowledge the National Cancer Institute’s Clinical Proteomic Tumor Analysis Consortium (CPTAC) Assay Portal (assays.cancer.gov) for developing assays and establishing criteria for the assays described in this publication.

C1QBP

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Available Assays

Overview Data source: UniProt

Official Gene Symbol Other Aliases
C1QBP GC1QBP, HABP1, SF2P32
Sequence Length (AA) Molecular Weight (Da)
282 31362
Protein Name
Complement component 1 Q subcomponent-binding protein, mitochondrial
Sources
UniProt
PhosphoSitePlus ®
GeneCards 		Human Protein Atlas

Protein Sequence hover to view complete sequence

10 20 30 40 50
MLPLLRCVPR VLGSSVAGLR AAAPASPFRQ LLQPAPRLCT RPFGLLSVRA
60 70 80 90 100
GSERRPGLLR PRGPCACGCG CGSLHTDGDK AFVDFLSDEI KEERKIQKHK
110 120 130 140 150
TLPKMSGGWE LELNGTEAKL VRKVAGEKIT VTFNINNSIP PTFDGEEEPS
160 170 180 190 200
QGQKVEEQEP ELTSTPNFVV EVIKNDDGKK ALVLDCHYPE DEVGQEDEAE
210 220 230 240 250
SDIFSIREVS FQSTGESEWK DTNYTLNTDS LDWALYDHLM DFLADRGVDN
260 270 280 282
TFADELVELS TALEHQEYIT FLEDLKSFVK SQ

Data source: UniProt

Protein Map Collapse protein map

Position of Targeted Peptide Analytes Relative to SNPs, Isoforms, and PTMs

Uniprot Database Entry PhosphoSitePlus ®

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Phosphorylation Acetylation Ubiquitylation Other

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Assay Details for CPTAC-176 Collapse assay details

Data source: Panorama

Official Gene Symbol
C1QBP
Peptide Sequence
EVSFQSTGESEWK
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
208
Peptide End
220
CPTAC ID
CPTAC-176
Peptide Molecular Mass
1,512.6733
Species
Homo sapiens (Human)
Assay Type
Direct MRM
Matrix
cell line lysate pool
Submitting Laboratory
Fred Hutchinson Cancer Research Center
Submitting Lab PI
Amanda Paulovich

Publication

View Details (opens in a new window)

Demonstrating the feasibility of large-scale development of standardized assays to quantify human proteins. Kennedy JJ, Abbatiello SE, Kim K, Yan P, Whiteaker JR, Lin C, Kim JS, Zhang Y, Wang X, Ivey RG, Zhao L, Min H, Lee Y, Yu MH, Yang EG, Lee C, Wang P, Rodriguez H, Kim Y, Carr SA, Paulovich AG. Nat Methods. 2014 Feb;11(2):149-55. doi: 10.1038/nmeth.2763. Epub 2013 Dec 8. PMID: 24317253

Assay Parameters Collapse assay parameters

Data source: Panorama

Instrument
5500 QTRAP (ABSCIEX)
Internal Standard
peptide
Peptide Standard Purity
>95%
Peptide Standard Label Type
13C,15N
LC
nanoLC-Ultra 2D, cHiPLC-nanoflex (Eksigent)
Column Packing
ChromXP C18-CL, 3 um, 120A
Column Dimensions
150 x 0.075 mm
Flow Rate
500 nL / min

Chromatograms

Data source: Panorama

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Response Curves

Data source: Panorama

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Retrieving Data

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Repeatability

Data source: Panorama

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  Average intra-assay CV
(within day CV)		 Average inter-assay CV
(between day CV)		 Total CV
equation		 n=
Fragment ion / Transition Low Med High Low Med High Low Med High Low Med High
y10 (1+) 15 15.9 14.6 22.2 21.2 21.7 26.8 26.5 26.2 15 25 15
y8 (1+) 14 9 11.6 23.5 16.3 19 27.4 18.6 22.3 15 25 15
y4 (1+) 41.7 16.6 17.8 53.7 20.7 23.7 68 26.5 29.6 15 25 15
sum 16.1 8.7 12.2 26.5 16.5 19.4 31 18.7 22.9 15 25 15

Additional Resources and Comments

Resources
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View Peptide in Panorama
View Protein in Panorama
Comments