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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
FKBP4 FKBP52
Sequence Length (AA) Molecular Weight (Da)
459 51805
Protein Name
Peptidyl-prolyl cis-trans isomerase FKBP4
Sources
UniProt
PhosphoSitePlus ®
GeneCards
Human Protein Atlas

Protein Sequence hover to view complete sequence

10 20 30 40 50
MTAEEMKATE SGAQSAPLPM EGVDISPKQD EGVLKVIKRE GTGTEMPMIG
60 70 80 90 100
DRVFVHYTGW LLDGTKFDSS LDRKDKFSFD LGKGEVIKAW DIAIATMKVG
110 120 130 140 150
EVCHITCKPE YAYGSAGSPP KIPPNATLVF EVELFEFKGE DLTEEEDGGI
160 170 180 190 200
IRRIQTRGEG YAKPNEGAIV EVALEGYYKD KLFDQRELRF EIGEGENLDL
210 220 230 240 250
PYGLERAIQR MEKGEHSIVY LKPSYAFGSV GKEKFQIPPN AELKYELHLK
260 270 280 290 300
SFEKAKESWE MNSEEKLEQS TIVKERGTVY FKEGKYKQAL LQYKKIVSWL
310 320 330 340 350
EYESSFSNEE AQKAQALRLA SHLNLAMCHL KLQAFSAAIE SCNKALELDS
360 370 380 390 400
NNEKGLFRRG EAHLAVNDFE LARADFQKVL QLYPNNKAAK TQLAVCQQRI
410 420 430 440 450
RRQLAREKKL YANMFERLAE EENKAKAEAS SGDHPTDTEM KEEQKSNTAG
459
SQSQVETEA

Data source: UniProt


Position of Targeted Peptide Analytes Relative to SNPs, Isoforms, and PTMs

Uniprot Database Entry PhosphoSitePlus ®

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All other points link out to UniProt



Phosphorylation Acetylation Ubiquitylation Other

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Assay Details for CPTAC-202 Collapse assay details

Data source: Panorama

Official Gene Symbol
FKBP4
Peptide Sequence
VFVHYTGWLLDGTK
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
53
Peptide End
66
CPTAC ID
CPTAC-202
Peptide Molecular Mass
1,634.8457
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
y12 (2+) 17.3 15.3 13.2 17.8 25.5 13.2 24.8 29.7 18.7 25 15 15
y8 (1+) 27.8 17 16.3 33.4 22.6 23.5 43.5 28.3 28.6 25 15 15
y10 (1+) 19 16.1 17.2 20.4 23 18.2 27.9 28.1 25 25 15 15
sum 17.3 15 14.2 20 23.1 15.5 26.4 27.5 21 25 15 15


Additional Resources and Comments


Assay Details for CPTAC-203 Collapse assay details

Data source: Panorama

Official Gene Symbol
FKBP4
Peptide Modified Sequence
VGEVC[+57.0]HITC[+57.0]KPEYAYGSAGSPPK
Modification Type
Carbamidomethyl Cysteine, Carbamidomethyl Cysteine
Protein - Site of Modification
103, 107
Peptide - Site of Modification
5, 9
Peptide Start
99
Peptide End
121
CPTAC ID
CPTAC-203
Peptide Molecular Mass
2,506.1621
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
y10 (1+) 17.6 16.5 14.9 33.6 16.7 22 37.9 23.5 26.6 15 15 15
y9 (1+) 28.1 17.3 24.4 38.6 16.9 26.6 47.7 24.2 36.1 15 15 15
y19 (2+) 44.6 12.1 26.6 51.3 15.5 28 68 19.7 38.6 15 15 15
sum 13.9 8.3 17 22.2 9.8 17 26.2 12.8 24 15 15 15


Additional Resources and Comments