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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
FLT1 FLT, FRT, VEGFR1
Sequence Length (AA) Molecular Weight (Da)
1338 150769
Protein Name
Vascular endothelial growth factor receptor 1
Sources
UniProt
PhosphoSitePlus ®
GeneCards
Human Protein Atlas

Protein Sequence hover to view complete sequence

10 20 30 40 50
MVSYWDTGVL LCALLSCLLL TGSSSGSKLK DPELSLKGTQ HIMQAGQTLH
60 70 80 90 100
LQCRGEAAHK WSLPEMVSKE SERLSITKSA CGRNGKQFCS TLTLNTAQAN
110 120 130 140 150
HTGFYSCKYL AVPTSKKKET ESAIYIFISD TGRPFVEMYS EIPEIIHMTE
160 170 180 190 200
GRELVIPCRV TSPNITVTLK KFPLDTLIPD GKRIIWDSRK GFIISNATYK
210 220 230 240 250
EIGLLTCEAT VNGHLYKTNY LTHRQTNTII DVQISTPRPV KLLRGHTLVL
260 270 280 290 300
NCTATTPLNT RVQMTWSYPD EKNKRASVRR RIDQSNSHAN IFYSVLTIDK
310 320 330 340 350
MQNKDKGLYT CRVRSGPSFK SVNTSVHIYD KAFITVKHRK QQVLETVAGK
360 370 380 390 400
RSYRLSMKVK AFPSPEVVWL KDGLPATEKS ARYLTRGYSL IIKDVTEEDA
410 420 430 440 450
GNYTILLSIK QSNVFKNLTA TLIVNVKPQI YEKAVSSFPD PALYPLGSRQ
460 470 480 490 500
ILTCTAYGIP QPTIKWFWHP CNHNHSEARC DFCSNNEESF ILDADSNMGN
510 520 530 540 550
RIESITQRMA IIEGKNKMAS TLVVADSRIS GIYICIASNK VGTVGRNISF
560 570 580 590 600
YITDVPNGFH VNLEKMPTEG EDLKLSCTVN KFLYRDVTWI LLRTVNNRTM
610 620 630 640 650
HYSISKQKMA ITKEHSITLN LTIMNVSLQD SGTYACRARN VYTGEEILQK
660 670 680 690 700
KEITIRDQEA PYLLRNLSDH TVAISSSTTL DCHANGVPEP QITWFKNNHK
710 720 730 740 750
IQQEPGIILG PGSSTLFIER VTEEDEGVYH CKATNQKGSV ESSAYLTVQG
760 770 780 790 800
TSDKSNLELI TLTCTCVAAT LFWLLLTLFI RKMKRSSSEI KTDYLSIIMD
810 820 830 840 850
PDEVPLDEQC ERLPYDASKW EFARERLKLG KSLGRGAFGK VVQASAFGIK
860 870 880 890 900
KSPTCRTVAV KMLKEGATAS EYKALMTELK ILTHIGHHLN VVNLLGACTK
910 920 930 940 950
QGGPLMVIVE YCKYGNLSNY LKSKRDLFFL NKDAALHMEP KKEKMEPGLE
960 970 980 990 1000
QGKKPRLDSV TSSESFASSG FQEDKSLSDV EEEEDSDGFY KEPITMEDLI
1010 1020 1030 1040 1050
SYSFQVARGM EFLSSRKCIH RDLAARNILL SENNVVKICD FGLARDIYKN
1060 1070 1080 1090 1100
PDYVRKGDTR LPLKWMAPES IFDKIYSTKS DVWSYGVLLW EIFSLGGSPY
1110 1120 1130 1140 1150
PGVQMDEDFC SRLREGMRMR APEYSTPEIY QIMLDCWHRD PKERPRFAEL
1160 1170 1180 1190 1200
VEKLGDLLQA NVQQDGKDYI PINAILTGNS GFTYSTPAFS EDFFKESISA
1210 1220 1230 1240 1250
PKFNSGSSDD VRYVNAFKFM SLERIKTFEE LLPNATSMFD DYQGDSSTLL
1260 1270 1280 1290 1300
ASPMLKRFTW TDSKPKASLK IDLRVTSKSK ESGLSDVSRP SFCHSSCGHV
1310 1320 1330 1338
SEGKRRFTYD HAELERKIAC CSPPPDYNSV VLYSTPPI

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-3174 Collapse assay details

Data source: Panorama

Official Gene Symbol
FLT1
Peptide Sequence
LGDLLQANVQQDGK
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
1154
Peptide End
1167
CPTAC ID
CPTAC-3174
Peptide Molecular Mass
1,497.7787
Species
Homo Sapiens
Assay Type
Direct PRM
Matrix
Tumor Digest
Submitting Laboratory
Washington University in St. Louis
Submitting Lab PI
Reid Townsend

Assay Parameters Collapse assay parameters

Data source: Panorama

Instrument
ThermoFisher, Q-Exactive
Internal Standard
25 fmol on column
Peptide Standard Purity
>95%
Peptide Standard Label Type
13C and 15N at C-terminus K
LC
Easy-nLC 1000 Thermo Scientific
Column Packing
C18
Column Dimensions
75 µm x 50 cm
Flow Rate
300 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
y8 (1+) 9.5 4.2 6.3 13.3 4 7.9 16.3 5.8 10.1 15 15 15
b3 (1+) 6.6 4.3 5.8 11.5 4.3 7.3 13.3 6.1 9.3 15 15 15
b4 (1+) 8.4 4.3 4.7 13 4.1 6.5 15.5 5.9 8 15 15 15
sum 7.2 4.1 5.6 12.1 4 7.2 14.1 5.7 9.1 15 15 15


Additional Resources and Comments


Assay Details for CPTAC-2819 Collapse assay details

Data source: Panorama

Official Gene Symbol
FLT1
Peptide Sequence
VTSPNITVTLK
Modification Type
unmodified
Protein - Site of Modification
N/A
Peptide - Site of Modification
N/A
Peptide Start
160
Peptide End
170
CPTAC ID
CPTAC-2819
Peptide Molecular Mass
1,171.6812
Species
Homo sapiens (Human)
Assay Type
Direct PRM
Matrix
Tumor Digest
Submitting Laboratory
Washington University in St. Louis
Submitting Lab PI
Reid Townsend

Assay Parameters Collapse assay parameters

Data source: Panorama

Instrument
ThermoFisher, Q-Exactive™
Internal Standard
25 fmol on column
Peptide Standard Purity
>95%
Peptide Standard Label Type
13C and 15N at C-terminus K
LC
EASY-nLC™ 1000 Thermo Scientific
Column Packing
C18
Column Dimensions
75 µm x 50 cm
Flow Rate
300 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+) 5.5 5.5 9.3 6.8 5.7 14.8 8.7 7.9 17.5 15 15 15
y6 (1+) 12.6 5.6 11.3 12.3 6.6 14.3 17.6 8.7 18.2 15 15 15
y5 (1+) 6.7 5.7 8.8 10.1 6.2 13.1 12.1 8.4 15.8 15 15 15
sum 5.2 4.9 9.1 5.8 5.6 13.9 7.8 7.4 16.6 15 15 15


Additional Resources and Comments