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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
HEXB N/A
Sequence Length (AA) Molecular Weight (Da)
556 63111
Protein Name
Beta-hexosaminidase subunit beta
Sources
UniProt
PhosphoSitePlus ®
GeneCards
Human Protein Atlas

Protein Sequence hover to view complete sequence

10 20 30 40 50
MELCGLGLPR PPMLLALLLA TLLAAMLALL TQVALVVQVA EAARAPSVSA
60 70 80 90 100
KPGPALWPLP LSVKMTPNLL HLAPENFYIS HSPNSTAGPS CTLLEEAFRR
110 120 130 140 150
YHGYIFGFYK WHHEPAEFQA KTQVQQLLVS ITLQSECDAF PNISSDESYT
160 170 180 190 200
LLVKEPVAVL KANRVWGALR GLETFSQLVY QDSYGTFTIN ESTIIDSPRF
210 220 230 240 250
SHRGILIDTS RHYLPVKIIL KTLDAMAFNK FNVLHWHIVD DQSFPYQSIT
260 270 280 290 300
FPELSNKGSY SLSHVYTPND VRMVIEYARL RGIRVLPEFD TPGHTLSWGK
310 320 330 340 350
GQKDLLTPCY SRQNKLDSFG PINPTLNTTY SFLTTFFKEI SEVFPDQFIH
360 370 380 390 400
LGGDEVEFKC WESNPKIQDF MRQKGFGTDF KKLESFYIQK VLDIIATINK
410 420 430 440 450
GSIVWQEVFD DKAKLAPGTI VEVWKDSAYP EELSRVTASG FPVILSAPWY
460 470 480 490 500
LDLISYGQDW RKYYKVEPLD FGGTQKQKQL FIGGEACLWG EYVDATNLTP
510 520 530 540 550
RLWPRASAVG ERLWSSKDVR DMDDAYDRLT RHRCRMVERG IAAQPLYAGY
556
CNHENM

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-79 Collapse assay details

Data source: Panorama

Official Gene Symbol
HEXB
Peptide Sequence
GSIVWQEVFDDK
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
401
Peptide End
412
CPTAC ID
CPTAC-79
Peptide Molecular Mass
1,421.6827
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

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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
y9 (1+) 14.8 14.6 15.3 27.4 22.3 17.2 31.1 26.7 23 25 15 15
y8 (1+) 15.2 7.9 10.7 29.6 12 10.5 33.3 14.4 15 25 15 15
y7 (1+) 20.6 10.2 23.7 31.6 12.8 36.5 37.7 16.4 43.5 25 15 15
sum 13.7 6.6 11.6 28.2 12.2 13.2 31.4 13.9 17.6 25 15 15


Additional Resources and Comments


Assay Details for CPTAC-78 Collapse assay details

Data source: Panorama

Official Gene Symbol
HEXB
Peptide Sequence
VLDIIATINK
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
391
Peptide End
400
CPTAC ID
CPTAC-78
Peptide Molecular Mass
1,098.6649
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+) 10.3 7.7 8.4 12.9 13.9 23.2 16.5 15.9 24.7 15 25 15
y7 (1+) 19.3 12.6 8.8 20.4 18.9 17.3 28.1 22.7 19.4 15 25 15
y6 (1+) 23.4 8.4 10.9 23.9 13.2 22.1 33.4 15.6 24.6 15 25 15
sum 13.8 7.1 7.7 13.7 12.8 20.5 19.4 14.6 21.9 15 25 15


Additional Resources and Comments