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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
EIF2A N/A
Sequence Length (AA) Molecular Weight (Da)
585 64990
Protein Name
Eukaryotic translation initiation factor 2A
Sources
UniProt
PhosphoSitePlus ®
GeneCards
Human Protein Atlas

Protein Sequence hover to view complete sequence

10 20 30 40 50
MAPSTPLLTV RGSEGLYMVN GPPHFTESTV FPRESGKNCK VCIFSKDGTL
60 70 80 90 100
FAWGNGEKVN IISVTNKGLL HSFDLLKAVC LEFSPKNTVL ATWQPYTTSK
110 120 130 140 150
DGTAGIPNLQ LYDVKTGTCL KSFIQKKMQN WCPSWSEDET LCARNVNNEV
160 170 180 190 200
HFFENNNFNT IANKLHLQKI NDFVLSPGPQ PYKVAVYVPG SKGAPSFVRL
210 220 230 240 250
YQYPNFAGPH AALANKSFFK ADKVTMLWNK KATAVLVIAS TDVDKTGASY
260 270 280 290 300
YGEQTLHYIA TNGESAVVQL PKNGPIYDVV WNSSSTEFCA VYGFMPAKAT
310 320 330 340 350
IFNLKCDPVF DFGTGPRNAA YYSPHGHILV LAGFGNLRGQ MEVWDVKNYK
360 370 380 390 400
LISKPVASDS TYFAWCPDGE HILTATCAPR LRVNNGYKIW HYTGSILHKY
410 420 430 440 450
DVPSNAELWQ VSWQPFLDGI FPAKTITYQA VPSEVPNEEP KVATAYRPPA
460 470 480 490 500
LRNKPITNSK LHEEEPPQNM KPQSGNDKPL SKTALKNQRK HEAKKAAKQE
510 520 530 540 550
ARSDKSPDLA PTPAPQSTPR NTVSQSISGD PEIDKKIKNL KKKLKAIEQL
560 570 580 585
KEQAATGKQL EKNQLEKIQK ETALLQELED LELGI

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 non-CPTAC-5376 Collapse assay details

Data source: Panorama

Official Gene Symbol
EIF2A
Peptide Sequence
SDKSPDLAPTPAPQSTPR
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
503
Peptide End
520
CPTAC ID
non-CPTAC-5376
Peptide Molecular Mass
1,863.9327
Species
Homo sapiens (Human)
Assay Type
Direct MRM
Matrix
Cell Lysate
Submitting Laboratory
Moffitt Cancer Center
Submitting Lab PI
John Koomen

Publication

View Details (opens in a new window)

Targeted mass spectrometry-based assays enable multiplex quantification of receptor tyrosine kinase, MAP Kinase, and AKT signaling. Whiteaker JR, Sharma K, Hoffman MA, Kuhn E, Zhao L, Cocco AR, Schoenherr RM, Kennedy JJ, Voytovich U, Lin C, Fang B, Bowers K, Whiteley G, Colantonio S, Bocik W, Roberts R, Hiltke T, Boja E, Rodriguez H, McCormick F, Holderfield M, Carr SA, Koomen JM, Paulovich AG. Cell Reports Methods doi: 10.1016/j.crmeth.2021.100015.


Assay Parameters Collapse assay parameters

Data source: Panorama

Instrument
RSLCnano and Quantiva
Internal Standard
Stable Isotope Labeled Standard
Peptide Standard Purity
>95%
Peptide Standard Label Type
13C and 15N at C-terminus R
LC
RSLCnano
Column Packing
C18 PepMap 100
Column Dimensions
75 micron ID x 25 cm length
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
b7 (1+) 9.8 6.6 5.5 15.3 6.7 6.6 18.2 9.4 8.6 15 15 15
y6 (2+) 6.2 3.3 2.9 8.1 4.3 2.6 10.2 5.4 3.9 15 15 15
y8 (1+) 5.5 3.7 2.1 5.4 4.2 2.8 7.7 5.6 3.5 15 15 15
y10 (1+) 16.9 5.3 5 21.2 6.6 4.9 27.1 8.5 7 15 15 15
sum 3.9 2.2 1.5 4.1 3.5 1.9 5.7 4.1 2.4 15 15 15


Additional Resources and Comments


Assay Details for non-CPTAC-5695 Collapse assay details

Data source: Panorama

Official Gene Symbol
EIF2A
Peptide Modified Sequence
SDKSPDLAPTPAPQST[+79.966331]PR
Modification Type
Phospho (ST)
Protein - Site of Modification
N/A
Peptide - Site of Modification
3
Peptide Start
503
Peptide End
520
CPTAC ID
non-CPTAC-5695
Peptide Molecular Mass
1,943.8990
Species
Homo sapiens (Human)
Assay Type
Enrichment MRM
Enrichment Method
IMAC
Matrix
Cell Lysate
Submitting Laboratory
Moffitt Cancer Center
Submitting Lab PI
John Koomen

Publication

View Details (opens in a new window)

Targeted mass spectrometry-based assays enable multiplex quantification of receptor tyrosine kinase, MAP Kinase, and AKT signaling. Whiteaker JR, Sharma K, Hoffman MA, Kuhn E, Zhao L, Cocco AR, Schoenherr RM, Kennedy JJ, Voytovich U, Lin C, Fang B, Bowers K, Whiteley G, Colantonio S, Bocik W, Roberts R, Hiltke T, Boja E, Rodriguez H, McCormick F, Holderfield M, Carr SA, Koomen JM, Paulovich AG. Cell Reports Methods doi: 10.1016/j.crmeth.2021.100015.


Assay Parameters Collapse assay parameters

Data source: Panorama

Instrument
Thermo Quantiva
Internal Standard
peptide
Peptide Standard Purity
>95%
Peptide Standard Label Type
13C and 15N at C-terminus R
LC
Dionex Ultimate 3000 RSLCnano
Column Packing
Pepmap 100
Column Dimensions
75um x 25cm
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 (2+) 2.7 2.1 3.3 3.5 2.9 3.4 4.4 3.6 4.7 15 15 15
y8 (1+) 4.8 2.8 2.1 5.1 2.5 2.6 7 3.8 3.3 15 15 15
y6 (1+) 3.5 1.6 2 3.4 2.1 2.4 4.9 2.6 3.1 15 15 15
y8 (2+) 3.2 1.8 2.1 3.3 1.8 2.1 4.6 2.5 3 15 15 15
b8 (1+) 1.9 1.4 1.5 2.2 1.6 1.6 2.9 2.1 2.2 15 15 15
sum 1.6 1.3 1.8 2.3 1.3 1.7 2.8 1.8 2.5 15 15 15


Additional Resources and Comments


Assay Details for non-CPTAC-5697 Collapse assay details

Data source: Panorama

Official Gene Symbol
EIF2A
Peptide Modified Sequence
SDKS[+79.966331]PDLAPTPAPQSTPR
Modification Type
Phospho (ST)
Protein - Site of Modification
N/A
Peptide - Site of Modification
3
Peptide Start
503
Peptide End
520
CPTAC ID
non-CPTAC-5697
Peptide Molecular Mass
1,943.8990
Species
Homo sapiens (Human)
Assay Type
Enrichment MRM
Enrichment Method
IMAC
Matrix
Cell Lysate
Submitting Laboratory
Moffitt Cancer Center
Submitting Lab PI
John Koomen

Publication

View Details (opens in a new window)

Targeted mass spectrometry-based assays enable multiplex quantification of receptor tyrosine kinase, MAP Kinase, and AKT signaling. Whiteaker JR, Sharma K, Hoffman MA, Kuhn E, Zhao L, Cocco AR, Schoenherr RM, Kennedy JJ, Voytovich U, Lin C, Fang B, Bowers K, Whiteley G, Colantonio S, Bocik W, Roberts R, Hiltke T, Boja E, Rodriguez H, McCormick F, Holderfield M, Carr SA, Koomen JM, Paulovich AG. Cell Reports Methods doi: 10.1016/j.crmeth.2021.100015.


Assay Parameters Collapse assay parameters

Data source: Panorama

Instrument
Thermo Quantiva
Internal Standard
peptide
Peptide Standard Purity
>95%
Peptide Standard Label Type
13C and 15N at C-terminus R
LC
Dionex Ultimate 3000 RSLCnano
Column Packing
Pepmap 100
Column Dimensions
75um x 25cm
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+) 4.4 4.8 5.4 15.6 18.4 18.4 16.2 19 19.2 15 15 15
y6 (1+) 4.7 4.6 4.8 14.1 17.4 18.2 14.9 18 18.8 15 15 15
y4 (1+) 9.5 6 4.1 18.6 16.9 18 20.9 17.9 18.5 15 15 15
y8 (2+) 5 5.4 4.3 14.6 16.7 18.7 15.4 17.6 19.2 15 15 15
y6 (2+) 5.1 5.7 5.1 12.5 16.9 18.1 13.5 17.8 18.8 15 15 15
sum 3.6 5.1 4.8 14 17.2 18.3 14.5 17.9 18.9 15 15 15


Additional Resources and Comments


Assay Details for non-CPTAC-5377 Collapse assay details

Data source: Panorama

Official Gene Symbol
EIF2A
Peptide Sequence
SPDLAPTPAPQSTPR
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
506
Peptide End
520
CPTAC ID
non-CPTAC-5377
Peptide Molecular Mass
1,533.7787
Species
Homo sapiens (Human)
Assay Type
Direct MRM
Matrix
Cell Lysate
Submitting Laboratory
Moffitt Cancer Center
Submitting Lab PI
John Koomen

Publication

View Details (opens in a new window)

Targeted mass spectrometry-based assays enable multiplex quantification of receptor tyrosine kinase, MAP Kinase, and AKT signaling. Whiteaker JR, Sharma K, Hoffman MA, Kuhn E, Zhao L, Cocco AR, Schoenherr RM, Kennedy JJ, Voytovich U, Lin C, Fang B, Bowers K, Whiteley G, Colantonio S, Bocik W, Roberts R, Hiltke T, Boja E, Rodriguez H, McCormick F, Holderfield M, Carr SA, Koomen JM, Paulovich AG. Cell Reports Methods doi: 10.1016/j.crmeth.2021.100015.


Assay Parameters Collapse assay parameters

Data source: Panorama

Instrument
RSLCnano and Quantiva
Internal Standard
Stable Isotope Labeled Standard
Peptide Standard Purity
>95%
Peptide Standard Label Type
13C and 15N at C-terminus R
LC
RSLCnano
Column Packing
C18 PepMap 100
Column Dimensions
75 micron ID x 25 cm length
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
b5 (1+) 4.2 3.5 1.6 5.4 3.2 1.9 6.8 4.7 2.5 15 15 15
y6 (1+) 11.4 4.5 3.9 6.8 5.8 4.6 13.3 7.3 6 15 15 15
y8 (1+) 5.3 3 2.2 9.1 3.4 3.8 10.5 4.5 4.4 15 15 15
y10 (1+) 2.4 1.2 1.6 3.1 2.4 2.5 3.9 2.7 3 15 15 15
y11 (1+) 10.4 3.3 3.2 10.3 4.5 2.2 14.6 5.6 3.9 15 15 15
sum 2.3 1.4 1.3 3.8 2.1 1.9 4.4 2.5 2.3 15 15 15


Additional Resources and Comments


Assay Details for non-CPTAC-5694 Collapse assay details

Data source: Panorama

Official Gene Symbol
EIF2A
Peptide Modified Sequence
SPDLAPTPAPQST[+79.966331]PR
Modification Type
Phospho (ST)
Protein - Site of Modification
N/A
Peptide - Site of Modification
3
Peptide Start
506
Peptide End
520
CPTAC ID
non-CPTAC-5694
Peptide Molecular Mass
1,613.7451
Species
Homo sapiens (Human)
Assay Type
Enrichment MRM
Enrichment Method
IMAC
Matrix
Cell Lysate
Submitting Laboratory
Moffitt Cancer Center
Submitting Lab PI
John Koomen

Publication

View Details (opens in a new window)

Targeted mass spectrometry-based assays enable multiplex quantification of receptor tyrosine kinase, MAP Kinase, and AKT signaling. Whiteaker JR, Sharma K, Hoffman MA, Kuhn E, Zhao L, Cocco AR, Schoenherr RM, Kennedy JJ, Voytovich U, Lin C, Fang B, Bowers K, Whiteley G, Colantonio S, Bocik W, Roberts R, Hiltke T, Boja E, Rodriguez H, McCormick F, Holderfield M, Carr SA, Koomen JM, Paulovich AG. Cell Reports Methods doi: 10.1016/j.crmeth.2021.100015.


Assay Parameters Collapse assay parameters

Data source: Panorama

Instrument
Thermo Quantiva
Internal Standard
peptide
Peptide Standard Purity
>95%
Peptide Standard Label Type
13C and 15N at C-terminus R
LC
Dionex Ultimate 3000 RSLCnano
Column Packing
Pepmap 100
Column Dimensions
75um x 25cm
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
b5 (1+) 1.9 1.5 1.5 2.2 1.4 1.8 2.9 2.1 2.3 15 15 15
b4 (1+) 3 1.9 1.6 4.1 2.1 2.6 5.1 2.8 3.1 15 15 15
y8 (1+) 4.4 2.7 1.9 5.2 3 1.7 6.8 4 2.5 15 15 15
y10-98 (1+) 2.8 1.7 2.1 3.1 1.7 2.1 4.2 2.4 3 15 15 15
y10 (1+) 1.9 1.6 1.2 2.5 1.6 1.7 3.1 2.3 2.1 15 15 15
sum 1.1 0.7 1 1.5 0.9 1.4 1.9 1.1 1.7 15 15 15


Additional Resources and Comments


Assay Details for non-CPTAC-5696 Collapse assay details

Data source: Panorama

Official Gene Symbol
EIF2A
Peptide Modified Sequence
S[+79.966331]PDLAPTPAPQSTPR
Modification Type
Phospho (ST)
Protein - Site of Modification
N/A
Peptide - Site of Modification
3
Peptide Start
506
Peptide End
520
CPTAC ID
non-CPTAC-5696
Peptide Molecular Mass
1,613.7451
Species
Homo sapiens (Human)
Assay Type
Enrichment MRM
Enrichment Method
IMAC
Matrix
Cell Lysate
Submitting Laboratory
Moffitt Cancer Center
Submitting Lab PI
John Koomen

Publication

View Details (opens in a new window)

Targeted mass spectrometry-based assays enable multiplex quantification of receptor tyrosine kinase, MAP Kinase, and AKT signaling. Whiteaker JR, Sharma K, Hoffman MA, Kuhn E, Zhao L, Cocco AR, Schoenherr RM, Kennedy JJ, Voytovich U, Lin C, Fang B, Bowers K, Whiteley G, Colantonio S, Bocik W, Roberts R, Hiltke T, Boja E, Rodriguez H, McCormick F, Holderfield M, Carr SA, Koomen JM, Paulovich AG. Cell Reports Methods doi: 10.1016/j.crmeth.2021.100015.


Assay Parameters Collapse assay parameters

Data source: Panorama

Instrument
Thermo Quantiva
Internal Standard
peptide
Peptide Standard Purity
>95%
Peptide Standard Label Type
13C and 15N at C-terminus R
LC
Dionex Ultimate 3000 RSLCnano
Column Packing
Pepmap 100
Column Dimensions
75um x 25cm
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
y10 (1+) 1.5 1.4 0.9 2.2 1.9 1.6 2.7 2.4 1.8 15 15 15
y8 (1+) 2.8 1.3 2.5 3.4 1.8 2.7 4.4 2.2 3.7 15 15 15
y6 (1+) 2.8 2 2.2 4.7 3.1 2.8 5.5 3.7 3.6 15 15 15
b5 (1+) 6.4 1.7 2.5 5.9 2.2 2.9 8.7 2.8 3.8 15 15 15
b5-98 (1+) 1.8 1.1 1.2 2.5 2 1.7 3.1 2.3 2.1 15 15 15
sum 1.3 0.6 0.8 2.1 1.6 1.4 2.5 1.7 1.6 15 15 15


Additional Resources and Comments