Show Nav →
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
NEK2 NEK2A, NLK1
Sequence Length (AA) Molecular Weight (Da)
445 51763
Protein Name
Serine/threonine-protein kinase Nek2
Sources
UniProt
PhosphoSitePlus ®
GeneCards
Human Protein Atlas

Protein Sequence hover to view complete sequence

10 20 30 40 50
MPSRAEDYEV LYTIGTGSYG RCQKIRRKSD GKILVWKELD YGSMTEAEKQ
60 70 80 90 100
MLVSEVNLLR ELKHPNIVRY YDRIIDRTNT TLYIVMEYCE GGDLASVITK
110 120 130 140 150
GTKERQYLDE EFVLRVMTQL TLALKECHRR SDGGHTVLHR DLKPANVFLD
160 170 180 190 200
GKQNVKLGDF GLARILNHDT SFAKTFVGTP YYMSPEQMNR MSYNEKSDIW
210 220 230 240 250
SLGCLLYELC ALMPPFTAFS QKELAGKIRE GKFRRIPYRY SDELNEIITR
260 270 280 290 300
MLNLKDYHRP SVEEILENPL IADLVADEQR RNLERRGRQL GEPEKSQDSS
310 320 330 340 350
PVLSELKLKE IQLQERERAL KAREERLEQK EQELCVRERL AEDKLARAEN
360 370 380 390 400
LLKNYSLLKE RKFLSLASNP ELLNLPSSVI KKKVHFSGES KENIMRSENS
410 420 430 440 445
ESQLTSKSKC KDLKKRLHAA QLRAQALSDI EKNYQLKSRQ ILGMR

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

loading

Loader

Assay Details for CPTAC-1258 Collapse assay details

Data source: Panorama

Official Gene Symbol
NEK2
Peptide Sequence
SQDSSPVLSELK
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
296
Peptide End
307
CPTAC ID
CPTAC-1258
Peptide Molecular Mass
1,288.6511
Species
Homo sapiens (Human)
Assay Type
Direct PRM
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+) 23.6 7.6 6.8 40.4 8.1 9.9 46.8 11.1 12 15 15 15
y5 (1+) 31.7 7.1 6.7 34.2 7.6 8.5 46.6 10.4 10.8 15 15 15
y7 (1+) 14.1 4.5 5 13.5 8 8.4 19.5 9.2 9.8 15 15 15
sum 16.8 4.5 5 19.1 7 7.7 25.4 8.3 9.2 15 15 15


Additional Resources and Comments


Assay Details for CPTAC-1259 Collapse assay details

Data source: Panorama

Official Gene Symbol
NEK2
Peptide Sequence
YSDELNEIITR
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
240
Peptide End
250
CPTAC ID
CPTAC-1259
Peptide Molecular Mass
1,351.6620
Species
Homo sapiens (Human)
Assay Type
Direct PRM
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 R
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
y6 (1+) 16.8 4.9 4.4 17.9 5.5 9 24.5 7.4 10 15 15 15
y7 (1+) 22.6 6 9 22.8 7.5 8.7 32.1 9.6 12.5 15 15 15
y9 (1+) 24.7 7.9 8.3 22.8 10.3 9.5 33.6 13 12.6 15 15 15
sum 9.2 4.2 5.4 13.2 5.9 7.7 16.1 7.2 9.4 15 15 15


Additional Resources and Comments


Assay Details for CPTAC-2904 Collapse assay details

Data source: Panorama

Official Gene Symbol
NEK2
Peptide Sequence
FLSLASNPELLNLPSSVIK
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
363
Peptide End
381
CPTAC ID
CPTAC-2904
Peptide Molecular Mass
2,041.1459
Species
Homo Sapiens
Assay Type
Direct PRM
Matrix
Tumor Digest
Submitting Laboratory
Washington University in St. Louis
Submitting Lab PI
Reid Townsend

Assay Parameters Collapse assay parameters

Data source: Panorama

Instrument
ThermoFisher, Q-Exactive
Internal Standard
25 fmol on column
Peptide Standard Purity
>95%
Peptide Standard Label Type
13C and 15N at C-terminus K
LC
Easy-nLC 1000 Thermo Scientific
Column Packing
C18
Column Dimensions
75 µm x 50 cm
Flow Rate
300 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
y6 (1+) 9.1 9.1 11.2 11.1 14.5 15.2 14.4 17.1 18.9 15 15 15
y8 (1+) 9.7 10 11.1 12.6 15.6 15.2 15.9 18.5 18.8 15 15 15
y9 (1+) 9.3 10.1 11.9 11.7 15.3 16.7 14.9 18.3 20.5 15 15 15
sum 9.2 9.5 11.2 11.4 14.9 15.4 14.6 17.7 19 15 15 15


Additional Resources and Comments


Assay Details for CPTAC-2903 Collapse assay details

Data source: Panorama

Official Gene Symbol
NEK2
Peptide Sequence
ILNHDTSFAK
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
165
Peptide End
174
CPTAC ID
CPTAC-2903
Peptide Molecular Mass
1,144.5877
Species
Homo Sapiens
Assay Type
Direct PRM
Matrix
Tumor Digest
Submitting Laboratory
Washington University in St. Louis
Submitting Lab PI
Reid Townsend

Assay Parameters Collapse assay parameters

Data source: Panorama

Instrument
ThermoFisher, Q-Exactive
Internal Standard
25 fmol on column
Peptide Standard Purity
>95%
Peptide Standard Label Type
13C and 15N at C-terminus K
LC
Easy-nLC 1000 Thermo Scientific
Column Packing
C18
Column Dimensions
75 µm x 50 cm
Flow Rate
300 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+) 5.8 5.4 7.1 6 6 6.7 8.3 8.1 9.8 15 15 15
y5 (1+) 5.2 17.1 5.2 6 17.5 4.8 7.9 24.5 7.1 15 15 15
y6 (1+) 4.2 9 6.2 4.2 10.1 6.5 5.9 13.5 9 15 15 15
sum 2.8 10.6 5.3 3.1 11.8 5.3 4.2 15.9 7.5 15 15 15


Additional Resources and Comments