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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
GAB1 N/A
Sequence Length (AA) Molecular Weight (Da)
694 76616
Protein Name
GRB2-associated-binding protein 1
Sources
UniProt
PhosphoSitePlus ®
GeneCards
Human Protein Atlas

Protein Sequence hover to view complete sequence

10 20 30 40 50
MSGGEVVCSG WLRKSPPEKK LKRYAWKRRW FVLRSGRLTG DPDVLEYYKN
60 70 80 90 100
DHAKKPIRII DLNLCQQVDA GLTFNKKEFE NSYIFDINTI DRIFYLVADS
110 120 130 140 150
EEEMNKWVRC ICDICGFNPT EEDPVKPPGS SLQAPADLPL AINTAPPSTQ
160 170 180 190 200
ADSSSATLPP PYQLINVPPH LETLGIQEDP QDYLLLINCQ SKKPEPTRTH
210 220 230 240 250
ADSAKSTSSE TDCNDNVPSH KNPASSQSKH GMNGFFQQQM IYDSPPSRAP
260 270 280 290 300
SASVDSSLYN LPRSYSHDVL PKVSPSSTEA DGELYVFNTP SGTSSVETQM
310 320 330 340 350
RHVSISYDIP PTPGNTYQIP RTFPEGTLGQ TSKLDTIPDI PPPRPPKPHP
360 370 380 390 400
AHDRSPVETC SIPRTASDTD SSYCIPTAGM SPSRSNTIST VDLNKLRKDA
410 420 430 440 450
SSQDCYDIPR AFPSDRSSSL EGFHNHFKVK NVLTVGSVSS EELDENYVPM
460 470 480 490 500
NPNSPPRQHS SSFTEPIQEA NYVPMTPGTF DFSSFGMQVP PPAHMGFRSS
510 520 530 540 550
PKTPPRRPVP VADCEPPPVD RNLKPDRKVK PAPLEIKPLP EWEELQAPVR
560 570 580 590 600
SPITRSFARD SSRFPMSPRP DSVHSTTSSS DSHDSEENYV PMNPNLSSED
610 620 630 640 650
PNLFGSNSLD GGSSPMIKPK GDKQVEYLDL DLDSGKSTPP RKQKSSGSGS
660 670 680 690 694
SVADERVDYV VVDQQKTLAL KSTREAWTDG RQSTESETPA KSVK

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-1557 Collapse assay details

Data source: Panorama

Official Gene Symbol
GAB1
Peptide Sequence
LTGDPDVLEYYK
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
38
Peptide End
49
CPTAC ID
CPTAC-1557
Peptide Molecular Mass
1,411.6871
Species
Homo sapiens (Human)
Assay Type
Direct MRM or SRM
Matrix
Ovarian cancer tumor tissue lysate
Submitting Laboratory
Pacific Northwest National Laboratory
Submitting Lab PI
Tao Liu

Assay Parameters Collapse assay parameters

Data source: Panorama

Instrument
TSQ Vantage
Internal Standard
peptide
Peptide Standard Purity
>95%
Peptide Standard Label Type
13C and 15N at C-terminus K
LC
Waters nanoACQUITY (Part Number 176016000)
Column Packing
Waters BEH C18, 1.7 um 130 Å (Part Number 186007485)
Column Dimensions
100 um x 100 mm
Flow Rate
0.5 uL/min

Assay Multiplexing Expand assay panel

Pacific Northwest National Laboratory-DirectSRM2


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
y10 (1+) 6.7 4.2 2.6 7.8 4.5 7.9 10.3 6.2 8.3 15 15 15
y8 (1+) 6.2 2.3 3.5 8.9 3.5 8.2 10.8 4.2 8.9 15 15 15
y5 (1+) 15 4.5 3.6 15.6 4.5 6.7 21.6 6.4 7.6 15 15 15
y8 (2+) 25.7 5.5 3.8 19.2 7.1 7.1 32.1 9 8.1 15 15 15
sum 4.9 2.9 2.4 7.5 4 7.1 9 4.9 7.5 15 15 15


Additional Resources and Comments