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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
Ckb Ckbb
Sequence Length (AA) Molecular Weight (Da)
381 42713
Protein Name
Creatine kinase B-type
Sources
UniProt
PhosphoSitePlus ®
GeneCards
Human Protein Atlas

Protein Sequence hover to view complete sequence

10 20 30 40 50
MPFSNSHNTQ KLRFPAEDEF PDLSSHNNHM AKVLTPELYA ELRAKCTPSG
60 70 80 90 100
FTLDDAIQTG VDNPGHPYIM TVGAVAGDEE SYDVFKDLFD PIIEERHGGY
110 120 130 140 150
QPSDEHKTDL NPDNLQGGDD LDPNYVLSSR VRTGRSIRGF CLPPHCSRGE
160 170 180 190 200
RRAIEKLAVE ALSSLDGDLS GRYYALKSMT EAEQQQLIDD HFLFDKPVSP
210 220 230 240 250
LLLASGMARD WPDARGIWHN DNKTFLVWIN EEDHLRVISM QKGGNMKEVF
260 270 280 290 300
TRFCTGLTQI ETLFKSKNYE FMWNPHLGYI LTCPSNLGTG LRAGVHIKLP
310 320 330 340 350
HLGKHEKFSE VLKRLRLQKR GTGGVDTAAV GGVFDVSNAD RLGFSEVELV
360 370 380 381
QMVVDGVKLL IEMEQRLEQG QAIDDLMPAQ K

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-477 Collapse assay details

Data source: Panorama

Official Gene Symbol
CKB
Peptide Sequence
LAVEALSSLDGDLAGR
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
157
Peptide End
172
CPTAC ID
CPTAC-477
Peptide Molecular Mass
1,585.8312
Species
Homo sapiens (Human)
Assay Type
Direct MRM
Matrix
cell line lysate pool
Submitting Laboratory
Seoul National University / Korea Institute of Science and Technology and FHCRC
Submitting Lab PI
Youngsoo Kim

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 Seoul National University / Korea Institute of Science and Technology. Repeatability data acquired at Fred Hutchinson Cancer Research Center.


Response curves acquired at Seoul National University / Korea Institute of Science and Technology. 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
y11 (1+) 11.9 10.2 11.1 18.1 14.9 22.7 21.7 18.1 25.3 25 15 15
y10 (1+) 10.5 7.1 7.2 19.2 15.5 22.7 21.9 17 23.8 25 15 15
y9 (1+) 10.7 8.9 11 20.9 14.2 19.7 23.5 16.8 22.6 25 15 15
sum 10.2 6.9 7.9 19.2 14.6 21.3 21.7 16.1 22.7 25 15 15


Additional Resources and Comments


Assay Details for CPTAC-476 Collapse assay details

Data source: Panorama

Official Gene Symbol
CKB
Peptide Sequence
VLTPELYAELR
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
33
Peptide End
43
CPTAC ID
CPTAC-476
Peptide Molecular Mass
1,302.7184
Species
Homo sapiens (Human)
Assay Type
Direct MRM
Matrix
cell line lysate pool
Submitting Laboratory
Seoul National University / Korea Institute of Science and Technology and FHCRC
Submitting Lab PI
Youngsoo Kim

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 Seoul National University / Korea Institute of Science and Technology. Repeatability data acquired at Fred Hutchinson Cancer Research Center.


Response curves acquired at Seoul National University / Korea Institute of Science and Technology. 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
y9 (1+) 6.4 10.6 10.2 9.9 11.8 11.7 11.8 15.9 15.5 15 25 15
y8 (1+) 9.5 8.4 6.2 12 10.6 9.1 15.3 13.5 11 15 25 15
y6 (1+) 15.6 11.1 14.5 16.9 12.3 15.1 23 16.6 20.9 15 25 15
sum 6.4 8.7 8.1 10.5 10.4 9.4 12.3 13.6 12.4 15 25 15


Additional Resources and Comments


Assay Details for non-CPTAC-3977 Collapse assay details

Data source: Panorama

Official Gene Symbol
Ckb
Peptide Sequence
DLFDPIIEER
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
87
Peptide End
96
CPTAC ID
non-CPTAC-3977
Peptide Molecular Mass
1,245.6241
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 R
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
y6 (1+) 3.1 1.8 0.9 6.9 4.3 3 7.6 4.7 3.1 15 15 15
y8 (2+) 6.2 1.8 1.9 10.7 3.7 3.3 12.4 4.1 3.8 15 15 15
y6 (2+) 5.8 1.9 1.8 8.6 5.3 3.4 10.4 5.6 3.8 15 15 15
b2 (1+) 23.7 5.7 2.8 28.4 7.8 3.6 37 9.7 4.6 15 15 15
b4 (1+) 7.9 2.2 1.3 9.5 5 3.6 12.4 5.5 3.8 15 15 15
sum 2.3 1.1 0.6 6.7 4.2 3 7.1 4.3 3.1 15 15 15


Additional Resources and Comments