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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
RPS6KA3 ISPK1, MAPKAPK1B, RSK2
Sequence Length (AA) Molecular Weight (Da)
740 83736
Protein Name
Ribosomal protein S6 kinase alpha-3
Sources
UniProt
PhosphoSitePlus ®
GeneCards
Human Protein Atlas

Protein Sequence hover to view complete sequence

10 20 30 40 50
MPLAQLADPW QKMAVESPSD SAENGQQIMD EPMGEEEINP QTEEVSIKEI
60 70 80 90 100
AITHHVKEGH EKADPSQFEL LKVLGQGSFG KVFLVKKISG SDARQLYAMK
110 120 130 140 150
VLKKATLKVR DRVRTKMERD ILVEVNHPFI VKLHYAFQTE GKLYLILDFL
160 170 180 190 200
RGGDLFTRLS KEVMFTEEDV KFYLAELALA LDHLHSLGII YRDLKPENIL
210 220 230 240 250
LDEEGHIKLT DFGLSKESID HEKKAYSFCG TVEYMAPEVV NRRGHTQSAD
260 270 280 290 300
WWSFGVLMFE MLTGTLPFQG KDRKETMTMI LKAKLGMPQF LSPEAQSLLR
310 320 330 340 350
MLFKRNPANR LGAGPDGVEE IKRHSFFSTI DWNKLYRREI HPPFKPATGR
360 370 380 390 400
PEDTFYFDPE FTAKTPKDSP GIPPSANAHQ LFRGFSFVAI TSDDESQAMQ
410 420 430 440 450
TVGVHSIVQQ LHRNSIQFTD GYEVKEDIGV GSYSVCKRCI HKATNMEFAV
460 470 480 490 500
KIIDKSKRDP TEEIEILLRY GQHPNIITLK DVYDDGKYVY VVTELMKGGE
510 520 530 540 550
LLDKILRQKF FSEREASAVL FTITKTVEYL HAQGVVHRDL KPSNILYVDE
560 570 580 590 600
SGNPESIRIC DFGFAKQLRA ENGLLMTPCY TANFVAPEVL KRQGYDAACD
610 620 630 640 650
IWSLGVLLYT MLTGYTPFAN GPDDTPEEIL ARIGSGKFSL SGGYWNSVSD
660 670 680 690 700
TAKDLVSKML HVDPHQRLTA ALVLRHPWIV HWDQLPQYQL NRQDAPHLVK
710 720 730 740
GAMAATYSAL NRNQSPVLEP VGRSTLAQRR GIKKITSTAL

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-2900 Collapse assay details

Data source: Panorama

Official Gene Symbol
RPS6KA3
Peptide Sequence
EASAVLFTITK
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
515
Peptide End
525
CPTAC ID
CPTAC-2900
Peptide Molecular Mass
1,178.6547
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

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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
y4 (1+) 12.8 6.6 9.6 13.4 5.9 11.8 18.5 8.9 15.2 15 15 15
y5 (1+) 12.6 6.2 8 13 6 10.1 18.1 8.6 12.9 15 15 15
y6 (1+) 9.2 6.2 8.8 12.1 5.1 10 15.2 8 13.3 15 15 15
sum 9.9 6.1 8.7 10.1 5.3 10.3 14.1 8.1 13.5 15 15 15


Additional Resources and Comments


Assay Details for CPTAC-2899 Collapse assay details

Data source: Panorama

Official Gene Symbol
RPS6KA3
Peptide Sequence
FSLSGGYWNSVSDTAK
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
638
Peptide End
653
CPTAC ID
CPTAC-2899
Peptide Molecular Mass
1,717.7948
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
y8 (1+) 7.2 3.5 3.1 7.5 4.3 3.1 10.4 5.5 4.4 15 15 15
y5 (1+) 6.2 1.8 3.3 6 5.1 3.1 8.6 5.4 4.5 15 15 15
y9 (1+) 6.5 4.1 3.2 7.1 5.2 3.6 9.6 6.6 4.8 15 15 15
sum 5.3 2.7 3.1 6.3 4.6 2.9 8.2 5.3 4.2 15 15 15


Additional Resources and Comments