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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
CD48 BCM1, BLAST1
Sequence Length (AA) Molecular Weight (Da)
243 27683
Protein Name
CD48 antigen
Sources
UniProt
PhosphoSitePlus ®
GeneCards
Human Protein Atlas

Protein Sequence hover to view complete sequence

10 20 30 40 50
MCSRGWDSCL ALELLLLPLS LLVTSIQGHL VHMTVVSGSN VTLNISESLP
60 70 80 90 100
ENYKQLTWFY TFDQKIVEWD SRKSKYFESK FKGRVRLDPQ SGALYISKVQ
110 120 130 140 150
KEDNSTYIMR VLKKTGNEQE WKIKLQVLDP VPKPVIKIEK IEDMDDNCYL
160 170 180 190 200
KLSCVIPGES VNYTWYGDKR PFPKELQNSV LETTLMPHNY SRCYTCQVSN
210 220 230 240 243
SVSSKNGTVC LSPPCTLARS FGVEWIASWL VVTVPTILGL LLT

Data source: UniProt


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

Uniprot Database Entry PhosphoSitePlus ®

Click a point on a node
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-6064 Collapse assay details

Data source: Panorama

Official Gene Symbol
CD48
Peptide Sequence
LQVLDPVPKPVIK
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
125
Peptide End
137
CPTAC ID
CPTAC-6064
Peptide Molecular Mass
1,444.9017
Species
Human
Assay Type
Enrichment MRM
Enrichment Method
peptide immunoaffinity
Matrix
FFPE lung tumor tissue lysate pool
Submitting Laboratory
Fred Hutchinson Cancer Research Center
Submitting Lab PI
Amanda Paulovich

Publication

View Details (opens in a new window)

Whiteaker JR, Zhao L, Schoenherr RM, Huang D, Lundeen RA, Voytovich U, Kennedy JJ, Ivey RG, Lin C, Murillo OD, Lorentzen TD, Colantonio S, Caceres TW, Roberts RR, Knotts JG, Reading JJ, Perry CD, Richardson CW, Garcia-Buntley SS, Bocik W, Hewitt SM, Chowdhury S, Vandermeer J, Smith SD, Gopal AK, Ramchurren N, Fling SP, Wang P, Paulovich AG. A multiplexed assay for quantifying immunomodulatory proteins supports correlative studies in immunotherapy clinical trials. Front Oncol. 2023 May 2;13:1168710. doi: 10.3389/fonc.2023.1168710. PMID: 37205196; PMCID: PMC10185886.


Assay Parameters Collapse assay parameters

Data source: Panorama

Instrument
QTRAP 5500
Internal Standard
peptide
Peptide Standard Purity
>95%
Peptide Standard Label Type
13C and 15N at C-terminus K
LC
Eksigent nanoLC 425
Column Packing
3 µm ChromXP C18EP, 120 Å
Column Dimensions
150 x 0.075 mm
Flow Rate
0.3 µL/min

Chromatograms

Data source: Panorama


Response Curves

Data source: Panorama

Retrieving Data

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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
b5 (1+) 21 22.5 26.8 34.5 25.1 27 40.4 33.7 38 15 15 15
y10 (2+) 28.9 17.8 25 43 23.4 24.8 51.8 29.4 35.2 15 15 15
y8 (2+) 24.1 17.9 21.7 38.6 28.7 19.9 45.5 33.8 29.4 15 15 15
y9 (2+) 28.4 15.1 23.5 37 24.6 26.6 46.6 28.9 35.5 15 15 15
sum 20.7 17.3 22.7 37.2 25.7 21.8 42.6 31 31.5 15 15 15


Additional Resources and Comments


Assay Details for CPTAC-1199 Collapse assay details

Data source: Panorama

Official Gene Symbol
CD48
Peptide Sequence
LQVLDPVPKPVIK
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
125
Peptide End
137
CPTAC ID
CPTAC-1199
Peptide Molecular Mass
1,444.9017
Species
Homo sapiens (Human)
Assay Type
Direct MRM
Matrix
Ovarian cancer tumor tissue lysate
Submitting Laboratory
Pacific Northwest National Laboratory
Submitting Lab PI
Tao Liu

Assay Parameters Collapse assay parameters

Data source: Panorama

Instrument
TSQ Vantage
Internal Standard
peptide
Peptide Standard Purity
>95%
Peptide Standard Label Type
13C and 15N at C-terminus K
LC
Waters nanoACQUITY (Part Number 176016000)
Column Packing
Waters BEH C18, 1.7 um 130 Å (Part Number 186007485)
Column Dimensions
100 um x 100 mm
Flow Rate
0.5 uL/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
y4 (1+) 35.3 8.8 15.9 33 15.2 17.7 48.3 17.6 23.8 15 15 15
y6 (1+) 36.6 14.8 12.5 35 21.4 15.2 50.6 26 19.7 15 15 15
y8 (1+) 25 8.8 9 27.2 9.1 9.7 36.9 12.7 13.2 15 15 15
sum 12.8 4.5 7.9 21.5 5.5 8.6 25 7.1 11.7 15 15 15


Additional Resources and Comments


Assay Details for non-CPTAC-4020 Collapse assay details

Data source: Panorama

Official Gene Symbol
Cd48
Peptide Sequence
DPLGPYK
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
46
Peptide End
52
CPTAC ID
non-CPTAC-4020
Peptide Molecular Mass
788.4069
Species
Mus musculus (Mouse)
Assay Type
Direct MRM
Matrix
Plasma
Submitting Laboratory
UVic-Genome BC Proteomics Centre
Submitting Lab PI
Christoph Borchers

Assay Parameters Collapse assay parameters

Data source: Panorama

Instrument
Agilent 6490/6495 QQQ
Internal Standard
synthetic peptide
Peptide Standard Purity
>80%
Peptide Standard Label Type
13C and 15N at C-terminus K
LC
1290 LC (Agilent)
Column Packing
Zorbax Eclipse Plus C18, 1.8 µm
Column Dimensions
2.1 x 150 mm
Flow Rate
400 µL/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
y5 (1+) 8.3 4.4 2.5 12.6 5.4 3.9 15.1 7 4.6 15 15 15
y4 (1+) 12 5.1 2.3 15.6 6.4 2.8 19.7 8.2 3.6 15 15 15
y3 (1+) 36.4 15.3 3.6 35.1 14.9 5.4 50.6 21.4 6.5 15 15 15
y6 (2+) 19.4 3.7 3.2 20.3 7.2 3.6 28.1 8.1 4.8 15 15 15
b2 (1+) 23.9 5.8 3.9 23.9 7.1 3.4 33.8 9.2 5.2 15 15 15
sum 6.8 1.8 1.1 9.2 5 2.5 11.4 5.3 2.7 15 15 15


Additional Resources and Comments