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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.

ISYNA1

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Available Assays

Overview Data source: UniProt

Official Gene Symbol Other Aliases
ISYNA1 INO1
Sequence Length (AA) Molecular Weight (Da)
558 61068
Protein Name
Inositol-3-phosphate synthase 1
Sources
UniProt
PhosphoSitePlus ®
GeneCards 		Human Protein Atlas

Protein Sequence hover to view complete sequence

10 20 30 40 50
MEAAAQFFVE SPDVVYGPEA IEAQYEYRTT RVSREGGVLK VHPTSTRFTF
60 70 80 90 100
RTARQVPRLG VMLVGWGGNN GSTLTAAVLA NRLRLSWPTR SGRKEANYYG
110 120 130 140 150
SLTQAGTVSL GLDAEGQEVF VPFSAVLPMV APNDLVFDGW DISSLNLAEA
160 170 180 190 200
MRRAKVLDWG LQEQLWPHME ALRPRPSVYI PEFIAANQSA RADNLIPGSR
210 220 230 240 250
AQQLEQIRRD IRDFRSSAGL DKVIVLWTAN TERFCEVIPG LNDTAENLLR
260 270 280 290 300
TIELGLEVSP STLFAVASIL EGCAFLNGSP QNTLVPGALE LAWQHRVFVG
310 320 330 340 350
GDDFKSGQTK VKSVLVDFLI GSGLKTMSIV SYNHLGNNDG ENLSAPLQFR
360 370 380 390 400
SKEVSKSNVV DDMVQSNPVL YTPGEEPDHC VVIKYVPYVG DSKRALDEYT
410 420 430 440 450
SELMLGGTNT LVLHNTCEDS LLAAPIMLDL ALLTELCQRV SFCTDMDPEP
460 470 480 490 500
QTFHPVLSLL SFLFKAPLVP PGSPVVNALF RQRSCIENIL RACVGLPPQN
510 520 530 540 550
HMLLEHKMER PGPSLKRVGP VAATYPMLNK KGPVPAATNG CTGDANGHLQ
558
EEPPMPTT

Data source: UniProt

Protein Map Collapse protein map

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

Uniprot Database Entry PhosphoSitePlus ®

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Phosphorylation Acetylation Ubiquitylation Other

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Assay Details for CPTAC-228 Collapse assay details

Data source: Panorama

Official Gene Symbol
ISYNA1
Peptide Modified Sequence
SC[+57.0]IENILR
Modification Type
Carbamidomethyl Cysteine
Protein - Site of Modification
485
Peptide - Site of Modification
2
Peptide Start
484
Peptide End
491
CPTAC ID
CPTAC-228
Peptide Molecular Mass
1,003.5121
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

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Response Curves

Data source: Panorama

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Retrieving Data

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Repeatability

Data source: Panorama

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  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+) 5.8 13.5 31.7 34.3 14.5 52 34.8 19.8 60.9 15 25 15
y5 (1+) 6.6 9.3 19 7.4 11.3 31.8 9.9 14.6 37 15 25 15
y4 (1+) 12.7 8.2 16 17.6 10.6 24.2 21.7 13.4 29 15 25 15
sum 5.2 9.9 22.7 17.1 11.2 37 17.9 14.9 43.4 15 25 15

Additional Resources and Comments

Resources
Download SOPs
View Peptide in Panorama
View Protein in Panorama
Comments

Assay Details for CPTAC-227 Collapse assay details

Data source: Panorama

Official Gene Symbol
ISYNA1
Peptide Sequence
VIVLWTANTER
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
223
Peptide End
233
CPTAC ID
CPTAC-227
Peptide Molecular Mass
1,300.7139
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

view larger image
view larger image
view larger image

Response Curves

Data source: Panorama

view larger image
view larger image
view larger image

Retrieving Data

Loader

Repeatability

Data source: Panorama

view larger image
  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+) 7.6 14.2 10.4 8 16.9 13.8 11 22.1 17.3 15 25 15
y7 (1+) 5 16.4 9.6 8.6 17.7 12.4 9.9 24.1 15.7 15 25 15
y6 (1+) 7.1 18.4 10 6 19 12.8 9.3 26.4 16.2 15 25 15
sum 5 15 8.8 6 16.5 12.2 7.8 22.3 15 15 25 15

Additional Resources and Comments

Resources
Download SOPs
View Peptide in Panorama
View Protein in Panorama
Comments