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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.

Overview Data source: UniProt

Official Gene Symbol Other Aliases
CRAT CAT1
Sequence Length (AA) Molecular Weight (Da)
626 70858
Protein Name
Carnitine O-acetyltransferase
Sources
UniProt
PhosphoSitePlus ®
GeneCards
Human Protein Atlas

Protein Sequence hover to view complete sequence

10 20 30 40 50
MLAFAARTVV KPLGFLKPFS LMKASSRFKA HQDALPRLPV PPLQQSLDHY
60 70 80 90 100
LKALQPIVSE EEWAHTKQLV DEFQASGGVG ERLQKGLERR ARKTENWLSE
110 120 130 140 150
WWLKTAYLQY RQPVVIYSSP GVMLPKQDFV DLQGQLRFAA KLIEGVLDFK
160 170 180 190 200
VMIDNETLPV EYLGGKPLCM NQYYQILSSC RVPGPKQDTV SNFSKTKKPP
210 220 230 240 250
THITVVHNYQ FFELDVYHSD GTPLTADQIF VQLEKIWNSS LQTNKEPVGI
260 270 280 290 300
LTSNHRNSWA KAYNTLIKDK VNRDSVRSIQ KSIFTVCLDA TMPRVSEDVY
310 320 330 340 350
RSHVAGQMLH GGGSRLNSGN RWFDKTLQFI VAEDGSCGLV YEHAAAEGPP
360 370 380 390 400
IVTLLDYVIE YTKKPELVRS PLVPLPMPKK LRFNITPEIK SDIEKAKQNL
410 420 430 440 450
SIMIQDLDIT VMVFHHFGKD FPKSEKLSPD AFIQMALQLA YYRIYGQACA
460 470 480 490 500
TYESASLRMF HLGRTDTIRS ASMDSLTFVK AMDDSSVTEH QKVELLRKAV
510 520 530 540 550
QAHRGYTDRA IRGEAFDRHL LGLKLQAIED LVSMPDIFMD TSYAIAMHFH
560 570 580 590 600
LSTSQVPAKT DCVMFFGPVV PDGYGVCYNP MEAHINFSLS AYNSCAETNA
610 620 626
ARLAHYLEKA LLDMRALLQS HPRAKL

Data source: UniProt


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

Uniprot Database Entry PhosphoSitePlus ®

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to view detailed assay information below
All other points link out to UniProt



Phosphorylation Acetylation Ubiquitylation Other

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Assay Details for CPTAC-342 Collapse assay details

Data source: Panorama

Official Gene Symbol
CRAT
Peptide Sequence
LIEGVLDFK
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
142
Peptide End
150
CPTAC ID
CPTAC-342
Peptide Molecular Mass
1,032.5855
Species
Homo sapiens (Human)
Assay Type
Direct MRM
Matrix
cell line lysate pool
Submitting Laboratory
Broad Institute and FHCRC
Submitting Lab PI
Steve Carr

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


Response curves acquired at Broad Institute. Repeatability data acquired at Fred Hutchinson Cancer Research Center.


Response curves acquired at Broad Institute. Repeatability data acquired at Fred Hutchinson Cancer Research Center.


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


Response Curves

Data source: Panorama

Retrieving Data

Loader

Repeatability

Data source: Panorama

  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
y7 (1+) 13.9 10.2 6.1 13.2 13.9 10.6 19.2 17.2 12.2 15 25 15
y6 (1+) 15.1 9.7 6.5 20.1 12.2 13.5 25.1 15.6 15 15 25 15
y5 (1+) 26.7 44.4 29.5 43 88.4 42.6 50.6 98.9 51.8 15 25 15
sum 12.3 11.1 7.5 12.7 12.9 13.2 17.7 17 15.2 15 25 15


Additional Resources and Comments


Assay Details for CPTAC-341 Collapse assay details

Data source: Panorama

Official Gene Symbol
CRAT
Peptide Sequence
LPVPPLQQSLDHYLK
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
38
Peptide End
52
CPTAC ID
CPTAC-341
Peptide Molecular Mass
1,746.9669
Species
Homo sapiens (Human)
Assay Type
Direct MRM
Matrix
cell line lysate pool
Submitting Laboratory
Broad Institute and FHCRC
Submitting Lab PI
Steve Carr

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


Response curves acquired at Broad Institute. Repeatability data acquired at Fred Hutchinson Cancer Research Center.


Response curves acquired at Broad Institute. Repeatability data acquired at Fred Hutchinson Cancer Research Center.


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


Response Curves

Data source: Panorama

Retrieving Data

Loader

Repeatability

Data source: Panorama

  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
y7 (1+) 16.5 14.9 8.6 23.8 16.8 24.7 29 22.5 26.2 25 15 15
y13 (2+) 9.5 6.3 5.8 10.2 6.9 7.4 13.9 9.3 9.4 25 15 15
y12 (2+) 7.2 7.7 3.7 9.8 7.8 8.5 12.2 11 9.3 25 15 15
sum 6.7 7 3.8 9.3 7.4 7.6 11.5 10.2 8.5 25 15 15


Additional Resources and Comments