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
PDIA4 ERP70, ERP72
Sequence Length (AA) Molecular Weight (Da)
645 72932
Protein Name
Protein disulfide-isomerase A4
Sources
UniProt
PhosphoSitePlus ®
GeneCards
Human Protein Atlas

Protein Sequence hover to view complete sequence

10 20 30 40 50
MRPRKAFLLL LLLGLVQLLA VAGAEGPDED SSNRENAIED EEEEEEEDDD
60 70 80 90 100
EEEDDLEVKE ENGVLVLNDA NFDNFVADKD TVLLEFYAPW CGHCKQFAPE
110 120 130 140 150
YEKIANILKD KDPPIPVAKI DATSASVLAS RFDVSGYPTI KILKKGQAVD
160 170 180 190 200
YEGSRTQEEI VAKVREVSQP DWTPPPEVTL VLTKENFDEV VNDADIILVE
210 220 230 240 250
FYAPWCGHCK KLAPEYEKAA KELSKRSPPI PLAKVDATAE TDLAKRFDVS
260 270 280 290 300
GYPTLKIFRK GRPYDYNGPR EKYGIVDYMI EQSGPPSKEI LTLKQVQEFL
310 320 330 340 350
KDGDDVIIIG VFKGESDPAY QQYQDAANNL REDYKFHHTF STEIAKFLKV
360 370 380 390 400
SQGQLVVMQP EKFQSKYEPR SHMMDVQGST QDSAIKDFVL KYALPLVGHR
410 420 430 440 450
KVSNDAKRYT RRPLVVVYYS VDFSFDYRAA TQFWRSKVLE VAKDFPEYTF
460 470 480 490 500
AIADEEDYAG EVKDLGLSES GEDVNAAILD ESGKKFAMEP EEFDSDTLRE
510 520 530 540 550
FVTAFKKGKL KPVIKSQPVP KNNKGPVKVV VGKTFDSIVM DPKKDVLIEF
560 570 580 590 600
YAPWCGHCKQ LEPVYNSLAK KYKGQKGLVI AKMDATANDV PSDRYKVEGF
610 620 630 640 645
PTIYFAPSGD KKNPVKFEGG DRDLEHLSKF IEEHATKLSR TKEEL

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-105 Collapse assay details

Data source: Panorama

Official Gene Symbol
PDIA4
Peptide Sequence
IDATSASVLASR
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
120
Peptide End
131
CPTAC ID
CPTAC-105
Peptide Molecular Mass
1,189.6303
Species
Homo sapiens (Human)
Assay Type
Direct MRM
Matrix
cell line lysate pool
Submitting Laboratory
Fred Hutchinson Cancer Research Center
Submitting Lab PI
Amanda Paulovich

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


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
y8 (1+) 7.7 5.8 3.3 6.9 7.1 4.3 10.3 9.2 5.4 15 25 15
y7 (1+) 8.4 7 3.8 7.9 7.7 4.7 11.5 10.4 6 15 25 15
y6 (1+) 10.3 6.3 3.5 12.9 6.7 6.1 16.5 9.2 7 15 25 15
sum 6.1 4.9 3.3 7.4 5.8 4.2 9.6 7.6 5.3 15 25 15

Selectivity

Data source: Panorama

Slope of Curve Fit for cell line
fragment_ion HCC1187 HCC1419 HCC1954 HCC70 MCF12A MDAMB175VII ZR751 ZR7530
y8 (1+) -0.02 -0.31 -0.04 -0.04 -0.09 -0.06 -0.1 -0.07
y6 (1+) -0.04 -0.32 -0.04 -0.04 -0.09 -0.07 -0.1 -0.07
y7 (1+) -0.03 -0.31 -0.04 -0.04 -0.09 -0.07 -0.12 -0.08
sum -0.03 -0.31 -0.04 -0.04 -0.09 -0.07 -0.1 -0.07

Stability

Data source: Panorama

Fragment ion / Transition control_intra_CV actual_temp_intra_CV frozen_intra_CV FTx1_intra_CV FTx2_intra_CV
y8 (1+) 3.6 3.7 3.9 NA 2.2
y6 (1+) 2.1 3.6 0.8 NA 5.9
y7 (1+) 4.3 3.8 3.5 NA 6.1
sum 1.5 2.3 1.2 NA 1.1
Fragment ion / Transition all_intra_CV all_inter_CV
y8 (1+) 3.4 3.5
y6 (1+) 3.2 2.8
y7 (1+) 4.3 4.6
sum 1.7 1.7

Endogenous

Data source: Panorama

Fragment ion / Transition intra_CV inter_CV total_CV
y7 (1+) 6.9 8 10.6
y6 (1+) 6.4 6.8 9.3
y8 (1+) 5.9 7.2 9.3
sum 4.9 5.8 7.6

Additional Resources and Comments


Assay Details for CPTAC-106 Collapse assay details

Data source: Panorama

Official Gene Symbol
PDIA4
Peptide Sequence
VDATAETDLAK
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
235
Peptide End
245
CPTAC ID
CPTAC-106
Peptide Molecular Mass
1,132.5612
Species
Homo sapiens (Human)
Assay Type
Direct MRM
Matrix
cell line lysate pool
Submitting Laboratory
Fred Hutchinson Cancer Research Center
Submitting Lab PI
Amanda Paulovich

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


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+) 10.1 6.6 3.2 14.8 9.9 6.9 17.9 11.9 7.6 15 25 15
y8 (1+) 10.2 5.3 2.9 14.1 7 5.4 17.4 8.8 6.1 15 25 15
y7 (1+) 10.1 4.9 2.6 15.8 7.8 4.7 18.8 9.2 5.4 15 25 15
sum 6.3 4.7 2.5 11.2 7.9 5.2 12.9 9.2 5.8 15 25 15


Stability

Data source: Panorama

Fragment ion / Transition control_intra_CV actual_temp_intra_CV frozen_intra_CV FTx1_intra_CV FTx2_intra_CV
Fragment ion / Transition all_intra_CV all_inter_CV

Additional Resources and Comments