#METABOLOMICS WORKBENCH XiaoyangSu_20250624_112953 DATATRACK_ID:6091 STUDY_ID:ST004094 ANALYSIS_ID:AN006787 PROJECT_ID:PR002513 VERSION 1 CREATED_ON June 24, 2025, 11:40 am #PROJECT PR:PROJECT_TITLE SLC45A4 encodes a peroxisomal putrescine transporter that promotes GABA de novo PR:PROJECT_TITLE synthesis PR:PROJECT_TYPE Cellular polar metabolomics PR:PROJECT_SUMMARY Solute carriers (SLC) are membrane proteins that facilitate the transportation PR:PROJECT_SUMMARY of ions and metabolites across either the plasma membrane or the membrane of PR:PROJECT_SUMMARY intracellular organelles. With more than 450 human genes annotated as SLCs, many PR:PROJECT_SUMMARY of them are still orphan transporters without known biochemical functions. We PR:PROJECT_SUMMARY developed a metabolomic-transcriptomic association analysis, and we found that PR:PROJECT_SUMMARY the expression of SLC45A4 has a strong positive correlation with the cellular PR:PROJECT_SUMMARY level of γ-aminobutyric acid (GABA). Using mass spectrometry and the stable PR:PROJECT_SUMMARY isotope tracing approach, we demonstrated that SLC45A4 promotes GABA de novo PR:PROJECT_SUMMARY synthesis through the Arginine/Ornithine/Putrescine (AOP) pathway. SLC45A4 PR:PROJECT_SUMMARY functions as a putrescine transporter localized to the peroxisome membrane to PR:PROJECT_SUMMARY facilitate GABA production. Taken together, our results revealed a new PR:PROJECT_SUMMARY biochemical mechanism where SLC45A4 controls GABA production. PR:INSTITUTE Rutgers University PR:DEPARTMENT Department of Medicine PR:LAST_NAME Su PR:FIRST_NAME Xiaoyang PR:ADDRESS 7118 Clinical Academic Building PR:EMAIL xs137@rwjms.rutgers.edu PR:PHONE 7322355447 PR:FUNDING_SOURCE R01 GM149664 #STUDY ST:STUDY_TITLE SLC45A4 encodes a peroxisomal putrescine transporter that promotes GABA de novo ST:STUDY_TITLE synthesis ST:STUDY_SUMMARY We found that the expression of SLC45A4 has a strong positive correlation with ST:STUDY_SUMMARY the cellular level of γ-aminobutyric acid (GABA). Using mass spectrometry and ST:STUDY_SUMMARY the stable isotope tracing approach, we demonstrated that SLC45A4 promotes GABA ST:STUDY_SUMMARY de novo synthesis through the Arginine/Ornithine/Putrescine (AOP) pathway. ST:STUDY_SUMMARY SLC45A4 functions as a putrescine transporter localized to the peroxisome ST:STUDY_SUMMARY membrane to facilitate GABA production. Taken together, our results revealed a ST:STUDY_SUMMARY new biochemical mechanism where SLC45A4 controls GABA production. Overexpression ST:STUDY_SUMMARY of the human ornithine decarboxylase (hODC1) significantly increased the level ST:STUDY_SUMMARY of GABA in both SLC45A4 WT and KO cells. However, the ODC1 overexpression did ST:STUDY_SUMMARY not fully rescue the deficiency in GABA production in SLC45A4 KO cells, ST:STUDY_SUMMARY suggesting SLC45A4 is required for efficient putrescine oxidation. ST:INSTITUTE Rutgers University ST:DEPARTMENT Department of Medicine ST:LAST_NAME Su ST:FIRST_NAME Xiaoyang ST:ADDRESS 7118 Clinical Academic Building ST:EMAIL xs137@rwjms.rutgers.edu ST:PHONE 17322355447 #SUBJECT SU:SUBJECT_TYPE Cultured cells SU:SUBJECT_SPECIES Homo sapiens SU:TAXONOMY_ID 9606 SU:CELL_STRAIN_DETAILS A549, H1299 #SUBJECT_SAMPLE_FACTORS: SUBJECT(optional)[tab]SAMPLE[tab]FACTORS(NAME:VALUE pairs separated by |)[tab]Raw file names and additional sample data SUBJECT_SAMPLE_FACTORS - A549-2E2_ctlGFP_1 Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:Ctrl RAW_FILE_NAME(Raw file name)=A549-2E2_ctlGFP_1 SUBJECT_SAMPLE_FACTORS - A549-2E2_ctlGFP_2 Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:Ctrl RAW_FILE_NAME(Raw file name)=A549-2E2_ctlGFP_2 SUBJECT_SAMPLE_FACTORS - A549-2E2_ctlGFP_3 Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:Ctrl RAW_FILE_NAME(Raw file name)=A549-2E2_ctlGFP_3 SUBJECT_SAMPLE_FACTORS - A549-2E2_hODC1_1 Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 RAW_FILE_NAME(Raw file name)=A549-2E2_hODC1_1 SUBJECT_SAMPLE_FACTORS - A549-2E2_hODC1_2 Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 RAW_FILE_NAME(Raw file name)=A549-2E2_hODC1_2 SUBJECT_SAMPLE_FACTORS - A549-2E2_hODC1_3 Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 RAW_FILE_NAME(Raw file name)=A549-2E2_hODC1_3 SUBJECT_SAMPLE_FACTORS - A549-4F1_ctlGFP_1 Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:Ctrl RAW_FILE_NAME(Raw file name)=A549-4F1_ctlGFP_1 SUBJECT_SAMPLE_FACTORS - A549-4F1_ctlGFP_2 Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:Ctrl RAW_FILE_NAME(Raw file name)=A549-4F1_ctlGFP_2 SUBJECT_SAMPLE_FACTORS - A549-4F1_ctlGFP_3 Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:Ctrl RAW_FILE_NAME(Raw file name)=A549-4F1_ctlGFP_3 SUBJECT_SAMPLE_FACTORS - A549-4F1_hODC1_1 Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 RAW_FILE_NAME(Raw file name)=A549-4F1_hODC1_1 SUBJECT_SAMPLE_FACTORS - A549-4F1_hODC1_2 Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 RAW_FILE_NAME(Raw file name)=A549-4F1_hODC1_2 SUBJECT_SAMPLE_FACTORS - A549-4F1_hODC1_3 Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 RAW_FILE_NAME(Raw file name)=A549-4F1_hODC1_3 SUBJECT_SAMPLE_FACTORS - A549-WT_ctlGFP_1 Sample source:Lysate | Cell line:A549 | Genotype:WT | Overexpression:Ctrl RAW_FILE_NAME(Raw file name)=A549-WT_ctlGFP_1 SUBJECT_SAMPLE_FACTORS - A549-WT_ctlGFP_2 Sample source:Lysate | Cell line:A549 | Genotype:WT | Overexpression:Ctrl RAW_FILE_NAME(Raw file name)=A549-WT_ctlGFP_2 SUBJECT_SAMPLE_FACTORS - A549-WT_ctlGFP_3 Sample source:Lysate | Cell line:A549 | Genotype:WT | Overexpression:Ctrl RAW_FILE_NAME(Raw file name)=A549-WT_ctlGFP_3 SUBJECT_SAMPLE_FACTORS - A549-WT_hODC1_1 Sample source:Lysate | Cell line:A549 | Genotype:WT | Overexpression:human-ODC1 RAW_FILE_NAME(Raw file name)=A549-WT_hODC1_1 SUBJECT_SAMPLE_FACTORS - A549-WT_hODC1_2 Sample source:Lysate | Cell line:A549 | Genotype:WT | Overexpression:human-ODC1 RAW_FILE_NAME(Raw file name)=A549-WT_hODC1_2 SUBJECT_SAMPLE_FACTORS - A549-WT_hODC1_3 Sample source:Lysate | Cell line:A549 | Genotype:WT | Overexpression:human-ODC1 RAW_FILE_NAME(Raw file name)=A549-WT_hODC1_3 SUBJECT_SAMPLE_FACTORS - H1299-3G2_ctlGFP_1 Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:Ctrl RAW_FILE_NAME(Raw file name)=H1299-3G2_ctlGFP_1 SUBJECT_SAMPLE_FACTORS - H1299-3G2_ctlGFP_2 Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:Ctrl RAW_FILE_NAME(Raw file name)=H1299-3G2_ctlGFP_2 SUBJECT_SAMPLE_FACTORS - H1299-3G2_ctlGFP_3 Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:Ctrl RAW_FILE_NAME(Raw file name)=H1299-3G2_ctlGFP_3 SUBJECT_SAMPLE_FACTORS - H1299-3G2_hODC1_1 Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 RAW_FILE_NAME(Raw file name)=H1299-3G2_hODC1_1 SUBJECT_SAMPLE_FACTORS - H1299-3G2_hODC1_2 Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 RAW_FILE_NAME(Raw file name)=H1299-3G2_hODC1_2 SUBJECT_SAMPLE_FACTORS - H1299-3G2_hODC1_3 Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 RAW_FILE_NAME(Raw file name)=H1299-3G2_hODC1_3 SUBJECT_SAMPLE_FACTORS - H1299-6C1_ctlGFP_1 Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:Ctrl RAW_FILE_NAME(Raw file name)=H1299-6C1_ctlGFP_1 SUBJECT_SAMPLE_FACTORS - H1299-6C1_ctlGFP_2 Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:Ctrl RAW_FILE_NAME(Raw file name)=H1299-6C1_ctlGFP_2 SUBJECT_SAMPLE_FACTORS - H1299-6C1_ctlGFP_3 Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:Ctrl RAW_FILE_NAME(Raw file name)=H1299-6C1_ctlGFP_3 SUBJECT_SAMPLE_FACTORS - H1299-6C1_hODC1_1 Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 RAW_FILE_NAME(Raw file name)=H1299-6C1_hODC1_1 SUBJECT_SAMPLE_FACTORS - H1299-6C1_hODC1_2 Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 RAW_FILE_NAME(Raw file name)=H1299-6C1_hODC1_2 SUBJECT_SAMPLE_FACTORS - H1299-6C1_hODC1_3 Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 RAW_FILE_NAME(Raw file name)=H1299-6C1_hODC1_3 SUBJECT_SAMPLE_FACTORS - H1299-WT_ctlGFP_1 Sample source:Lysate | Cell line:H1299 | Genotype:WT | Overexpression:Ctrl RAW_FILE_NAME(Raw file name)=H1299-WT_ctlGFP_1 SUBJECT_SAMPLE_FACTORS - H1299-WT_ctlGFP_2 Sample source:Lysate | Cell line:H1299 | Genotype:WT | Overexpression:Ctrl RAW_FILE_NAME(Raw file name)=H1299-WT_ctlGFP_2 SUBJECT_SAMPLE_FACTORS - H1299-WT_ctlGFP_3 Sample source:Lysate | Cell line:H1299 | Genotype:WT | Overexpression:Ctrl RAW_FILE_NAME(Raw file name)=H1299-WT_ctlGFP_3 SUBJECT_SAMPLE_FACTORS - H1299-WT_hODC1_1 Sample source:Lysate | Cell line:H1299 | Genotype:WT | Overexpression:human-ODC1 RAW_FILE_NAME(Raw file name)=H1299-WT_hODC1_1 SUBJECT_SAMPLE_FACTORS - H1299-WT_hODC1_2 Sample source:Lysate | Cell line:H1299 | Genotype:WT | Overexpression:human-ODC1 RAW_FILE_NAME(Raw file name)=H1299-WT_hODC1_2 SUBJECT_SAMPLE_FACTORS - H1299-WT_hODC1_3 Sample source:Lysate | Cell line:H1299 | Genotype:WT | Overexpression:human-ODC1 RAW_FILE_NAME(Raw file name)=H1299-WT_hODC1_3 #COLLECTION CO:COLLECTION_SUMMARY 0.5×10^6 cells in the culture were washed twice with PBS and extracted with 0.5 CO:COLLECTION_SUMMARY ml ice-cold 40:40:20 (methanol:acetonitrile:water) solution with 0.5% formic CO:COLLECTION_SUMMARY acid. The cells were scraped off the plate followed by incubation on ice for 10 CO:COLLECTION_SUMMARY min, and neutralized by the addition of 25 μl 15% (m/v) NH4HCO3 solution. The CO:COLLECTION_SUMMARY extracts were transferred to a 1.5 ml tube. For conditioned media metabolite CO:COLLECTION_SUMMARY extraction, 5 µl of culture media was mixed with 500 µl of ice-cold 40:40:20 CO:COLLECTION_SUMMARY (methanol:acetonitrile:water) solution with 0.5% formic acid and neutralized by CO:COLLECTION_SUMMARY the addition of 25 μl 15% (m/v) NH4HCO3 solution. The whole cell or media CO:COLLECTION_SUMMARY extracts were then centrifuged at 4°C and 16,000 × g for 10 min and CO:COLLECTION_SUMMARY transferred to a clean tube and stored at -80°C until analysis. CO:SAMPLE_TYPE Cultured cells #TREATMENT TR:TREATMENT_SUMMARY For transient overexpression of ODC1, cells were seeded in new 12-well plates at TR:TREATMENT_SUMMARY the density of 2×105 / ml. When the cells reached about 70% confluence, cells TR:TREATMENT_SUMMARY were transfected with Lipofectamine 3000 according to manufacturer’s TR:TREATMENT_SUMMARY instructions (Invitrogen, L3000015). 1 μg expression vector plasmid DNA was TR:TREATMENT_SUMMARY first mixed with 2 μl P3000 reagent in 50 μl Opti-MEM reduced serum medium TR:TREATMENT_SUMMARY (Gibco, 31985070), then mixed with 3 μl Lipofectamine 3000 in another 50 μl TR:TREATMENT_SUMMARY Opti-MEM. The mixture was incubated at room temperature for 15 min and added TR:TREATMENT_SUMMARY directly to the cell culture. 24h later, the media were replaced with the one TR:TREATMENT_SUMMARY containing stable isotope tracers if necessary. #SAMPLEPREP SP:SAMPLEPREP_SUMMARY The whole cell extracts were then centrifuged at 4°C and 16,000 × g for 10 min SP:SAMPLEPREP_SUMMARY and transferred to a clean tube and stored at -80°C until analysis. #CHROMATOGRAPHY CH:CHROMATOGRAPHY_TYPE HILIC CH:INSTRUMENT_NAME Thermo Vanquish CH:COLUMN_NAME Waters XBridge BEH Amide (150 mm × 2.1 mm, 2.5um) CH:SOLVENT_A 95%:5% H2O:acetonitrile with 20 mM acetic acid, 40 mM ammonium hydroxide, pH 9.4 CH:SOLVENT_B 0%:80% H2O:acetonitrile with 20 mM acetic acid, 40 mM ammonium hydroxide, pH 9.4 CH:FLOW_GRADIENT 0 min, 100% B; 3 min, 100% B; 3.2 min, 90% B; 6.2 min, 90% B; 6.5 min, 80% B; CH:FLOW_GRADIENT 10.5 min, 80% B; 10.7 min, 70% B; 13.5 min, 70% B; 13.7 min, 45% B; 16 min, 45% CH:FLOW_GRADIENT B; 16.5 min, 100% B; and 22 min, 100% B CH:FLOW_RATE 0.3ml/min CH:COLUMN_TEMPERATURE 25 #ANALYSIS AN:ANALYSIS_TYPE MS AN:LABORATORY_NAME Metabolomics Shared Resource of Rutgers Cancer Institute AN:DETECTOR_TYPE Orbitrap AN:DATA_FORMAT mzXML #MS MS:INSTRUMENT_NAME Thermo Q Exactive Plus Orbitrap MS:INSTRUMENT_TYPE Orbitrap MS:MS_TYPE ESI MS:ION_MODE POSITIVE MS:MS_COMMENTS The mass spectrometry analysis was performed on Thermo Q Exactive PLUS MS:MS_COMMENTS instrument with a HESI source, which was set to a spray voltage of −2.7 kV in MS:MS_COMMENTS negative mode and 3.5 kV in positive mode. The sheath, auxiliary, and sweep gas MS:MS_COMMENTS flow rates were 40, 10, and 2 (arbitrary units), respectively. The capillary MS:MS_COMMENTS temperature was set to 300°C, and the aux gas heater was set to 360°C. The MS:MS_COMMENTS S-lens RF level was 45. The m/z scan range was set to 72 to 1000 m/z in either MS:MS_COMMENTS positive or negative ionization mode. The AGC target was set to 3e6, and the MS:MS_COMMENTS maximum IT was 200 ms. Metabolite data were obtained using the El-MAVEN software MS:MS_COMMENTS package (mass accuracy window: 5 ppm). All isotope natural abundance corrections MS:MS_COMMENTS were done using AccuCor (single-isotope labeling) or AccuCor2 (dual-isotope MS:MS_COMMENTS labeling). MS:CAPILLARY_TEMPERATURE 300C MS:ION_SPRAY_VOLTAGE 3.5kV #MS_METABOLITE_DATA MS_METABOLITE_DATA:UNITS Ion counts MS_METABOLITE_DATA_START Samples A549-2E2_ctlGFP_1 A549-2E2_ctlGFP_2 A549-2E2_ctlGFP_3 A549-2E2_hODC1_1 A549-2E2_hODC1_2 A549-2E2_hODC1_3 A549-4F1_ctlGFP_1 A549-4F1_ctlGFP_2 A549-4F1_ctlGFP_3 A549-4F1_hODC1_1 A549-4F1_hODC1_2 A549-4F1_hODC1_3 A549-WT_ctlGFP_1 A549-WT_ctlGFP_2 A549-WT_ctlGFP_3 A549-WT_hODC1_1 A549-WT_hODC1_2 A549-WT_hODC1_3 H1299-3G2_ctlGFP_1 H1299-3G2_ctlGFP_2 H1299-3G2_ctlGFP_3 H1299-3G2_hODC1_1 H1299-3G2_hODC1_2 H1299-3G2_hODC1_3 H1299-6C1_ctlGFP_1 H1299-6C1_ctlGFP_2 H1299-6C1_ctlGFP_3 H1299-6C1_hODC1_1 H1299-6C1_hODC1_2 H1299-6C1_hODC1_3 H1299-WT_ctlGFP_1 H1299-WT_ctlGFP_2 H1299-WT_ctlGFP_3 H1299-WT_hODC1_1 H1299-WT_hODC1_2 H1299-WT_hODC1_3 Factors Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:Ctrl Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:Ctrl Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:Ctrl Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:Ctrl Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:Ctrl Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:Ctrl Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 Sample source:Lysate | Cell line:A549 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 Sample source:Lysate | Cell line:A549 | Genotype:WT | Overexpression:Ctrl Sample source:Lysate | Cell line:A549 | Genotype:WT | Overexpression:Ctrl Sample source:Lysate | Cell line:A549 | Genotype:WT | Overexpression:Ctrl Sample source:Lysate | Cell line:A549 | Genotype:WT | Overexpression:human-ODC1 Sample source:Lysate | Cell line:A549 | Genotype:WT | Overexpression:human-ODC1 Sample source:Lysate | Cell line:A549 | Genotype:WT | Overexpression:human-ODC1 Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:Ctrl Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:Ctrl Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:Ctrl Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:Ctrl Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:Ctrl Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:Ctrl Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 Sample source:Lysate | Cell line:H1299 | Genotype:SLC45A4-KO | Overexpression:human-ODC1 Sample source:Lysate | Cell line:H1299 | Genotype:WT | Overexpression:Ctrl Sample source:Lysate | Cell line:H1299 | Genotype:WT | Overexpression:Ctrl Sample source:Lysate | Cell line:H1299 | Genotype:WT | Overexpression:Ctrl Sample source:Lysate | Cell line:H1299 | Genotype:WT | Overexpression:human-ODC1 Sample source:Lysate | Cell line:H1299 | Genotype:WT | Overexpression:human-ODC1 Sample source:Lysate | Cell line:H1299 | Genotype:WT | Overexpression:human-ODC1 4-Aminobutyrate (GABA)_C12 PARENT 1229771.62 1148768.88 946383 1525572 1467030.62 1390987.12 1117674.88 1003722.06 740807.5 1432142 1462032.38 1609424.62 1356450 1280858.12 1195578.88 2210969.25 2656526.25 2276523 756384.19 845779 864340.19 1720331 1574438.62 1718649.5 766394.19 836913.75 757774.81 1660324.62 1526282.38 1838469.5 1239105.25 1554486.12 1380882.62 2350943.25 2354621.5 2228809.25 4-Aminobutyrate (GABA)_C13-label-1 54107.39 51336.12 42010.39 63598.96 70252.09 64920.83 51819.78 44603.1 30330.38 67752.96 66450.66 68300.91 60356.57 52073.02 53608.04 97280.66 113354.21 99937.98 36436.96 37409.12 39252.32 80122.99 63780.21 88383.12 37800.01 35407.26 37261.46 61004.24 67807.38 86399.54 64221.59 69668.8 65911.15 102100.96 105217.54 93931.81 4-Aminobutyrate (GABA)_C13-label-4 112669.3 77354.75 68384.18 2724207.5 2919679 3119651.25 91198.62 59263.86 42569.08 2921786.75 3107309.25 3574168.75 423328.97 393598.66 371659 5040346 6821365.5 6390614 72706.75 69699.85 78142.23 2848743.75 2500352.75 2549300.75 69191.41 71736.09 56891.02 2211395 2090550 2305512 274354.72 366520.16 339910.97 4026524 3972876 4186180.75 4-Aminobutyrate (GABA)_D2-label-4 86093.62 101368.95 77176.35 2329232.25 2225869.5 2019351 90040.43 80756.52 65118.81 2546423.75 2560815.25 2590526.25 484622.66 472644.03 456444.34 4862882 5173617.5 4727626 42811.5 34733.72 51261.97 2578982.5 2212708.75 2215628.75 41241.2 39208.52 32392.47 1689433 1578355.5 1769405.62 204987.89 263978.66 241710.86 3404660.75 3432825.75 3587055.25 4-Aminobutyrate (GABA)_D2-label-5 77169.7 56037.69 57292.33 2983700 2820482.25 2516713.5 69430.41 54277.52 53380.54 3484889.25 3598406.25 3483856.25 385145.25 381689.09 372239.91 6371203.5 6727398.5 6200189.5 14293.44 23645.31 24291.8 3516617 2926730.75 3007298 20508.3 28263.85 29665.17 2377014 2245505.75 2351227.25 264091.16 332720.84 333262.69 5438261.5 5276280 5537654 4-Aminobutyrate (GABA)_D2-label-6 352832.62 321815.41 284031.53 5811985.5 5601558 5115223.5 300971.78 260669.61 223523.48 5397293.5 5309348 5415584.5 1616697.62 1557308.38 1591724 9179393 11202260 9846895 172749.14 166443.42 157330.67 2285733 1963005.38 2105037.25 135567.19 162016.39 149385.69 1799910.88 1728523.88 1909885.5 844145.31 1117715.62 998786.31 4693652.5 4681613.5 4751138 Acetylputrescine_C12 PARENT 223553.58 234075.88 197166.75 723362.81 648809.31 609270.31 251976.25 223890.3 208166.58 617486.25 716341.94 824960.06 73866.71 54031.64 50901.96 410657.84 360577.28 355576.72 185156 160200.67 188543 1243116.12 821342.81 1087939.5 155213.89 144340.12 128363.57 615993.31 660300.56 773384.81 13555.72 15573.79 14930.09 322130.22 272075.22 251897.55 Acetylputrescine_C13-label-1 17039.85 15336.33 18200.62 49280.51 44973.19 41598.29 22669.6 20276.42 13976.51 42132.31 49589.39 59097.45 7540.59 8956.09 7545.03 34414.1 24279.95 25938.57 18277.4 16015.18 17228.23 82755.16 55868.96 74885.41 15640.67 13300.19 11636.5 53249.98 45577.03 55086.75 2122.15 4375.46 2380.97 24931.22 23031.24 23490.27 Acetylputrescine_C13-label-3 0 0 0 43681.8 39034.89 42727.91 0 0 0 37171.43 50324.89 59249.92 0 0 0 38322.6 41860.19 45189.55 2336.15 2838.62 1729.8 102058.41 73307.85 83540.09 2157.27 0 1403.68 49089.34 51560.33 46489.91 0 0 0 42938.65 37880.79 40750.56 Acetylputrescine_C13-label-4 17214.98 17451.26 11574.4 1640960.38 1531282.5 1661306 11776.84 10435.54 6131.69 1500810.5 1953242.5 2211058.75 31033.9 28896.9 29913.35 1466531.5 1668829 1695419.5 106941.29 118803.48 127503.97 3949908 2805548 3311288.75 62493.63 63358.2 61716.79 1835360.88 1889616.38 2081900.62 32585.6 40121.46 37695.38 1690972 1518136.12 1561122 Acetylputrescine_D2-label-4 0 0 0 223925.8 198479.48 158166.64 0 0 0 278189.44 321405.81 324588.38 0 0 0 250420.89 205619.95 222929.7 3604.96 3372.63 1726.53 709292.44 530357.5 582252.69 0 0 0 290062.12 281755.41 317679.38 0 0 0 281412.41 231442.36 269598.72 Acetylputrescine_D2-label-5 14435.36 10489.7 9806.11 2523444.75 2313580.25 1946066.38 10123.05 5978.45 9079.16 3111154 3686456.75 3657692.75 19009.6 17083.18 17452.2 3052370.75 2565026 2700256 55894.89 58337.39 60289.55 8747353 6260741.5 6905364 32056.24 33454.21 30549.5 3582403 3550999.25 3710458 18176.78 20123.7 18121.33 3419666 3149960.25 3308158 Acetylputrescine_D2-label-6 89059.34 80969.26 75381.37 4000344.75 3710351 3219607.25 79300.22 70096.66 57656.38 3507075.25 3681497.25 3878856 149296.33 124672.16 137718.75 2524305.25 2425639.75 2381052.25 443584.84 448641.88 506243.38 5880960 4343746.5 5045168 236923.3 247674.2 228215.36 3306756.25 3225264 3534080.75 122407.65 155706.95 149000.94 2446962.75 2360803.25 2463288.75 Arginine_C12 PARENT 543564.19 550536.75 467075.09 536618.31 529092.94 499905.72 412562.66 386779.91 313883.78 362226.72 427412.88 471453.78 370610.78 308714.56 357058.62 315675.5 247390.12 260813.98 662686.19 672097 682484.44 954414.81 595993.94 863614.19 531736.94 661636.25 611600.62 656053 728146.5 994975.94 316483.12 293760.72 226432.98 344042.97 319583.62 278364.47 Arginine_C13-label-5 175773.25 173653.06 149433.27 160010.08 178804.08 197186.56 134804.55 128241.78 103364.23 154046.78 160643.88 176224.33 98596.43 92818.44 103387.96 78586.22 69495.68 78623.34 196633.19 207891.67 204172.2 290825.91 175932.58 244028.08 173828.06 191039.19 181526.33 201728.8 198315.2 273637.25 81865.2 86446.75 76458.34 100619.32 92403.66 87262.51 Arginine_C13-label-6 4472482 4093720.75 3678498 4020171.25 4303808.5 4509362.5 3411529.25 3166514.75 2568632.5 3632522.25 3819690 4226044.5 2380182.25 2255546.25 2550353.25 1821020.38 1852047.88 1914451.38 4641049.5 4840070.5 4604456.5 6568037.5 4397106.5 6126051.5 4139975.75 4776024.5 4422534.5 4779653.5 4905994 6503628.5 2033784.88 2087942.88 1758916.88 2482084.75 2297475 2279825.25 Creatine_C12 PARENT 2759096.75 2108423.25 1522606.38 2710044.75 2264967.75 2165634.25 2321821 1754520.88 637528 2594815.25 2185647.25 2505370.25 5035804.5 4766103.5 4527564.5 5760938 7415107.5 5908017.5 8987642 10397352 11295635 12718232 11898883 15180259 12503496 14945683 11964971 17802944 17773552 26718698 2659773.75 3280329.25 3041904 5028171.5 5992043.5 5352155.5 Creatine_C13-label-1 1299988 1337689.38 959422.81 1560548.62 1595303.38 1586992 904645.19 747391.69 296946.91 1081526 933395.75 1055752.5 1705913.38 1692896.62 1797757.38 1871552 2262843.25 2109779 1572324.38 1813741 1899683 2576280.25 2292081.75 2798667.25 1627792.88 1835990 1512952.38 2381603.75 2398532.25 3480606 132822.88 182205.89 156599.27 293587.72 356271.53 324653.22 Creatine_C13-label-3 148131.05 131301.92 99346.8 158355.95 177012.08 167898.27 91720.65 73591.29 42323.71 131471.58 100776.51 113242.79 134063.62 135453.42 150627.88 159536.59 228233.88 202626.08 155189.97 195488 191897.14 274463.03 248956.52 296065.53 151910.31 164797.19 129333.25 203557.2 209450.2 291102.88 80844.59 95582.87 100107.41 188270.33 191775.44 210132.73 Creatine_C13-label-4 92415.45 76627.35 63959.98 95418.79 99798.09 102810.48 71279.69 72278.46 35597.69 111606.81 83283.13 85044.48 79571.41 84729.16 89619.78 94480.23 129858.73 111499.65 293274.41 323311.84 326251.25 399535.34 355633.53 421645.34 256215.08 264214.66 257592.27 331742.12 342188.41 469095.34 90548.82 119936.98 110429.71 175923.67 174477.12 183186.58 Glutamate_C12 PARENT 122515800 119029464 106890176 120074440 122908280 115323648 71136936 70969304 59521844 78007880 72990352 81414024 120272256 111658728 109787816 108456768 114657192 112070520 263922672 290838016 273033216 304440512 276473280 329984032 200914768 219890128 193611520 212770560 224809392 261474496 129493192 157488400 136066576 170865360 158460528 163095984 Glutamate_C13-label-1 6958923.5 6884357.5 6212189.5 6978767.5 7003018 6615086.5 4118258 4132496.25 3393405.25 4322214.5 4148624.75 4603725 6946108 6472374.5 6027550.5 6180781.5 6517294.5 6391139.5 15433379 16826480 15472483 17632792 16090341 18934510 11534273 13159533 11229261 12314004 13031009 15240748 7866990.5 9119311 7823648.5 9839444 9227799 9346247 Glutamate_C13-label-2 138311.14 151075.92 119440.71 153784.11 137102.45 110480.23 89781.29 85232.14 67039.68 90185.15 83297.91 88291.04 137315.92 128809.54 142210.48 108320.87 110779.02 108823.12 325949.28 366211.97 336386.09 358842.53 340651.03 378647.34 291029.59 324776.38 294419 291106.78 321033.47 352411.91 153363 175838.95 152068.33 187031.19 161349.78 157683.39 Glutamate_C13-label-3 145859.42 147288.12 144301.06 98407.81 99511.91 102818.44 93985.1 68788.82 78841.18 66423.24 56145.39 73660.18 85318.24 92576.81 104685.18 51811.01 67452 47661.28 320306.97 329835.72 316525.53 274778.22 213184.31 319258.81 408987.34 427259.97 382986.03 329537.41 358148.78 441933.34 139536.83 157474.59 139121.11 111732.9 96742.23 103159.9 Glutamate_C13-label-4 17676.83 10583.25 25364.99 9146.18 17891.94 9758.5 20184.44 17411 10386.2 9937.68 5600.81 6174.38 16382.85 24892.12 18487.43 8381.35 7631.17 9009.72 595831.31 629002.75 633182 586304.44 489141.34 666624.06 793921.19 800369.56 690442 659628.44 712728.81 847602.19 335544.12 399638.47 320804.84 249527.95 228706.58 263039.25 Ornithine_C12 PARENT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 46226.77 48437.62 47574.84 40933.14 43503.39 49231.32 47114.39 47545.84 44187.81 48561.87 45854.17 45848.09 48000.66 42924.27 60715.67 55842.71 46829.62 48243.32 Ornithine_C13-label-5 63432.23 60743.28 48133.61 37660.46 39553.64 51097.89 43915.61 45674.72 31878.48 30974.99 32782.27 35894.54 41690.7 31848.02 37176.11 15133.38 23813.31 12517.04 102382.1 97235.26 97927.34 97745.9 72512.87 107154.09 84445.01 88218.13 80556.07 79617.23 80477.15 113535.24 34286.53 42721.53 33525.14 32968.83 34483.12 36282.69 Ornithine_D2-label-5 40946.3 39379.97 32278.02 19560.92 21344.88 20556.72 30327.86 24798.42 18724.17 23925.03 16426.08 14716.17 23821.11 19248.21 23181.33 8417.05 10061.17 9925.71 38018.18 43379.45 41334.49 33110.92 24765.92 31973.63 33906.95 39178.75 29858.5 25190.5 31207.56 41533.4 16714.7 19354.42 14716.14 12495.4 11587.63 12761.49 Ornithine_D2-label-6 249776.33 237858.05 195026.05 145616.38 149217.83 146623.92 181801.7 183334.7 128883.38 127809.38 101780.04 102096.57 151081.52 135831.34 150081.56 49896.39 57777.2 51836.16 305082.12 309969.59 312833.09 232204.5 177887.55 246461.02 259549.94 281722.25 250614.81 199265.25 198230.8 277917.97 109434.9 131107.27 105427.34 77033.15 83538.85 76510.02 Putrescine_C12 PARENT 194722.02 233892.27 177169.14 551551 610217.31 606526 232659.38 264887.28 13639.81 624640.31 770024.75 850962.94 52270.67 57674.61 59790.54 319894 228381.98 306055.19 554623 452171.84 538890.06 1640826.5 1295683.38 1550921.38 470640.66 491829.47 584375.25 1081513 1265119.62 1464174.12 43905.74 40093.05 37093.51 482514.25 428473.75 397520.59 Putrescine_C13-label-3 0 0 0 37490.09 41696.05 48725.78 0 0 0 49558.27 61094.02 73834.73 1164.92 0 1221.54 35952.72 31993.48 45719.33 10652.61 10506.62 8771.87 164674.81 130081.98 157470.14 5444.41 3344.29 7582.5 103972.51 111316.26 126704.96 2350.81 1848 3049.01 80628.34 79145.22 75114.93 Putrescine_C13-label-4 19299.87 18322.27 18529.74 1529989.12 1895192.38 2135244.75 12162.26 16575.2 1744.71 1951298.5 2483628.75 2906497.25 30960.25 34976.98 33137.04 1373511.38 1356051.38 1791810.88 407284.66 390702.34 434805.34 6776826.5 5283057.5 6026356.5 241903.55 240950.67 277327 4123316 4588635.5 4885982 92784.96 95043.77 100686.94 3192775.75 3022358.75 3038098 Putrescine_D2-label-4 1315.71 0 0 210344.52 255518.86 232872.67 0 1473.43 0 351436.5 383664.91 428630.62 1258.74 1425.45 1175.54 254604.98 192849.02 237195.95 12067.3 9101.54 11361.73 1084342.12 848884.69 931060.69 6634.1 7487.74 6773.24 611004.88 638331.5 709550.81 1623.38 1977.08 3886.03 515914.5 482792.66 475349.59 Putrescine_D2-label-5 14384.48 17028.32 14729.12 2519448.75 2927842 2715533 15492.8 16201.8 0 4041630 4638266.5 4909259 19967.07 23542.33 24147.57 3007005.25 2264117.5 2986460 215520.58 179165.94 221147.08 13470117 10681580 11689853 120754.03 122575.56 143269.14 7428639.5 7887720.5 8536219 51816.8 51233.28 57088.07 6566636.5 6179334 6231112 Putrescine_D2-label-6 114198.88 108546.5 92925.35 3678679 4301866.5 4256999.5 118579.1 109288.19 1822.86 4518159.5 4394211.5 5016474.5 176372.19 194013.83 187179.25 2411989.75 2038014.88 2452744.25 1734916.62 1547101 1738856.5 8895029 7348700 8591972 987302 946358 1178849 6741849.5 7399301.5 7988512 375975.84 365082.22 386647.03 4555460.5 4287984 4225523.5 MS_METABOLITE_DATA_END #METABOLITES METABOLITES_START metabolite_name medMz medRt 4-Aminobutyrate (GABA)_C12 PARENT 104.071091 7.452 4-Aminobutyrate (GABA)_C13-label-1 105.074471 7.485 4-Aminobutyrate (GABA)_C13-label-4 108.08448 7.462 4-Aminobutyrate (GABA)_D2-label-4 108.096191 7.49 4-Aminobutyrate (GABA)_D2-label-5 109.10215 7.527 4-Aminobutyrate (GABA)_D2-label-6 110.108704 7.493 Acetylputrescine_C12 PARENT 131.118149 5.517 Acetylputrescine_C13-label-1 132.121536 5.518 Acetylputrescine_C13-label-3 134.128128 5.501 Acetylputrescine_C13-label-4 135.131531 5.512 Acetylputrescine_D2-label-4 135.143173 5.516 Acetylputrescine_D2-label-5 136.149429 5.522 Acetylputrescine_D2-label-6 137.155701 5.525 Arginine_C12 PARENT 175.119171 10.835 Arginine_C13-label-5 180.13562 10.843 Arginine_C13-label-6 181.139206 10.847 Creatine_C12 PARENT 132.07692 6.603 Creatine_C13-label-1 133.079788 6.604 Creatine_C13-label-3 135.086945 6.608 Creatine_C13-label-4 136.090347 6.758 Glutamate_C12 PARENT 148.060562 8.763 Glutamate_C13-label-1 149.063934 8.761 Glutamate_C13-label-2 150.067245 8.796 Glutamate_C13-label-3 151.070663 8.758 Glutamate_C13-label-4 153.077179 8.802 Ornithine_C12 PARENT 133.097305 10.716 Ornithine_C13-label-5 138.114151 11.337 Ornithine_D2-label-5 138.128525 11.358 Ornithine_D2-label-6 139.134979 11.361 Putrescine_C12 PARENT 89.107925 16.744 Putrescine_C13-label-3 92.117966 16.84 Putrescine_C13-label-4 93.121346 16.815 Putrescine_D2-label-4 93.133049 16.916 Putrescine_D2-label-5 94.139328 16.94 Putrescine_D2-label-6 95.145546 16.966 METABOLITES_END #END