Study Data


MS Study

Project uploaded by: Ganesh
Project ID: IMP_100062
Title: The Quantitative Amino Acid Economy of Yeast Reveals Public versus Private Goods and Guides Syntrophic Community Design
Project Description: Quantitative mass spectrometry based estimates of intra and extracellular amino acids in yeast Quantitative metabolic flux into amino acids using 15N ammonium acetate Quantitative mass spectrometry based amino acid amounts in wild-type and mutant yeast
Research Area: Biological Sciences
Funding Source: DBT Wellcome India Alliance (IA/S/21/2/505922), DBT-DFG Indo-German collaboration grant (IC-12025(22)/4/2023-ICD-DBT) Department of Biotechnology
Project Contributors: Shabbir Ahmad, Ganesh Muthu, Sunil Laxman

Study uploaded by: Ganesh
Study ID: IMS_100060
Title: The Quantitative Amino Acid Economy of Yeast Reveals Public versus Private Goods and Guides Syntrophic Community Design
Summary: Using S. cerevisiae, here we establish an absolute, quantitative blueprint of the intracellular and extracellular amino acid economy, defining the fluxes of production, secretion and consumption across 24 hours of cell growth. The data includes absolute intra and extracellular amino acid amounts, amino acid biosynthetic flux for all amino acids, changes in amino acids in yeast auxotrophic strains, and data on amino acid consumption in cells.
Publication:
Release Date: July 16, 2026
Study Type: Mass Spectrometry (MS)
Data Type: Targeted
IEC/IBSC Approval Number :

Sr.No Sample ID Sample Name Organism Source Sample Preparation Protocol Sample Type Experimental Condition Time of treatment Variant/Variety Gender Age Replicates Storage Conditions Extraction Protocol Number of files per sample
21 IMSM_104902 Fig5_ctrl12_H_Int_35_mM Saccharomyces cerevisiae | 4932 Metabolites from S.cerevisiae cells grown in different conditions S. cerevisiae cultures were grown in synthetic defined minimal medium over 12-hours. At specific time points, equal numbers of cells (~2x10^7) were rapidly harvested and immediately quenched by plunging them into an extraction buffer of 60% methanol. Metabolites Intracellular amino acids concentration from cells collected in standard minimal medium (SD, with ~35 mM ammonium sulfate) after 12 hr of growth NA NA NA NA 3.0 NA

The quenched cells were extracted in 75% ethanol. The mixture was then dried down using a speed vacuum (rotatory evaporator). The dried metabolites were subsequently dissolved in 300 µl of mass spectrometry-grade water, and 10 µl of this sample was injected for targeted LC-MS/MS analysis.

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22 IMSM_104903 Fig5_12H_ex_350_uM Saccharomyces cerevisiae | 4932 Metabolites from S.cerevisiae cells grown in different conditions S. cerevisiae cultures were grown in a minimal medium. At 12hours, 1 ml of culture was collected and centrifuged for 5 minutes at 7000 rpm at room temperature to pellet the cells. Between 250 to 500 µl of the cell-free supernatant was carefully collected for metabolite extraction. Metabolites Extracellular amino acids concentration from cells collected from nitrogen starvation (ammonium sulfate limitation -350μM), after 12 hr of growth NA NA NA NA 3.0 NA

The cell-free supernatant was mixed with 75% ethanol to extract extracellular amino acids. The mixture was vortexed for 1.0 minute and placed on ice for a few minutes. Samples were then centrifuged at 16000 rpm for 12 minutes at room temperature. 750 µl of the resulting clear supernatant was transferred to new tubes and dried using a speed vacuum. Dried metabolites were stored at -80°C prior to LC-MS/MS analysis.

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23 IMSM_104904 Fig5_12H_Int_350_uM Saccharomyces cerevisiae | 4932 Metabolites from S.cerevisiae cells grown in different conditions S. cerevisiae cultures were grown in synthetic defined minimal medium over 12-hours. At specific time points, equal numbers of cells (~2x10^7) were rapidly harvested and immediately quenched by plunging them into an extraction buffer of 60% methanol. Metabolites Intracellular amino acids concentration from cells collected from nitrogen starvation (ammonium sulfate limitation -350μM), after 12 hr of growth NA NA NA NA 3.0 NA

The quenched cells were extracted in 75% ethanol. The mixture was then dried down using a speed vacuum (rotatory evaporator). The dried metabolites were subsequently dissolved in 300 µl of mass spectrometry-grade water, and 10 µl of this sample was injected for targeted LC-MS/MS analysis.

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24 IMSM_104905 Fig6D_Bat1-2 Saccharomyces cerevisiae | 4932 Metabolites from S.cerevisiae cells grown in different conditions Paired communities of auxotrophic S. cerevisiae strains (public-public or public-private goods pairs) were co-cultured in wild-type conditioned minimal medium (spent supernatant). At the indicated time point (e.g., 24 hours), 1 ml of the co-culture was collected and centrifuged for 5 minutes at 7000 rpm at room temperature to pellet the cells. Between 250 to 500 µl of the cell-free conditioned supernatant was carefully aspirated and collected for extracellular metabolite extraction. Metabolites Extracellular amino acid concentration (relevant to the auxotrophy) after 24hr of growth in conditioned supernatant NA NA NA NA 3.0 NA

The cell-free conditioned supernatant was mixed with 75% ethanol to extract extracellular amino acids. The mixture was vortexed for 1.0 minute and placed on ice for a few minutes. Samples were then centrifuged at 16000 rpm for 12 minutes at room temperature. 750 µl of the resulting clear supernatant was transferred to new tubes and dried down using a speed vacuum. Dried metabolites were stored at -80°C prior to targeted LC-MS/MS analysis.

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25 IMSM_104906 Fig6D_Leu2 Saccharomyces cerevisiae | 4932 Metabolites from S.cerevisiae cells grown in different conditions Paired communities of auxotrophic S. cerevisiae strains (public-public or public-private goods pairs) were co-cultured in wild-type conditioned minimal medium (spent supernatant). At the indicated time point (e.g., 24 hours), 1 ml of the co-culture was collected and centrifuged for 5 minutes at 7000 rpm at room temperature to pellet the cells. Between 250 to 500 µl of the cell-free conditioned supernatant was carefully aspirated and collected for extracellular metabolite extraction. Metabolites Extracellular amino acid concentration (relevant to the auxotrophy) after 24hr of growth in conditioned supernatant NA NA NA NA 3.0 NA

The cell-free conditioned supernatant was mixed with 75% ethanol to extract extracellular amino acids. The mixture was vortexed for 1.0 minute and placed on ice for a few minutes. Samples were then centrifuged at 16000 rpm for 12 minutes at room temperature. 750 µl of the resulting clear supernatant was transferred to new tubes and dried down using a speed vacuum. Dried metabolites were stored at -80°C prior to targeted LC-MS/MS analysis.

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26 IMSM_104907 Fig6D_Trp Saccharomyces cerevisiae | 4932 Metabolites from S.cerevisiae cells grown in different conditions Paired communities of auxotrophic S. cerevisiae strains (public-public or public-private goods pairs) were co-cultured in wild-type conditioned minimal medium (spent supernatant). At the indicated time point (e.g., 24 hours), 1 ml of the co-culture was collected and centrifuged for 5 minutes at 7000 rpm at room temperature to pellet the cells. Between 250 to 500 µl of the cell-free conditioned supernatant was carefully aspirated and collected for extracellular metabolite extraction. Metabolites Extracellular amino acid concentration (relevant to the auxotrophy) after 24hr of growth in conditioned supernatant NA NA NA NA 3.0 NA

The cell-free conditioned supernatant was mixed with 75% ethanol to extract extracellular amino acids. The mixture was vortexed for 1.0 minute and placed on ice for a few minutes. Samples were then centrifuged at 16000 rpm for 12 minutes at room temperature. 750 µl of the resulting clear supernatant was transferred to new tubes and dried down using a speed vacuum. Dried metabolites were stored at -80°C prior to targeted LC-MS/MS analysis.

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Sr.No MS Exp ID Sample Name/ID Mass Spectrometer Type MS Instrument Name MS Instrument type MS Ionization Method Ion Mode/Scan Polarity Data Transformation (Software/s Used)
1 IME_103334 Fig1_2hour / IMSM_104830 LCMS (Liquid Chromatography- Mass Spectrometry) ABI Sciex 5500 QTrap Triple quadrupole Electrospray Ionization - ESI Positive MultiQuant
2 IME_103335 Fig1_2hour / IMSM_104830 LCMS (Liquid Chromatography- Mass Spectrometry) ABI Sciex 5500 QTrap Triple quadrupole Electrospray Ionization - ESI Positive MultiQuant
3 IME_103336 Fig1_2hour / IMSM_104830 LCMS (Liquid Chromatography- Mass Spectrometry) ABI Sciex 5500 QTrap Triple quadrupole Electrospray Ionization - ESI Positive MultiQuant
4 IME_103337 Fig1_2hour / IMSM_104830 LCMS (Liquid Chromatography- Mass Spectrometry) ABI Sciex 5500 QTrap Triple quadrupole Electrospray Ionization - ESI Positive MultiQuant
5 IME_103338 Fig1_2hour / IMSM_104830 LCMS (Liquid Chromatography- Mass Spectrometry) ABI Sciex 5500 QTrap Triple quadrupole Electrospray Ionization - ESI Positive MultiQuant
6 IME_103339 Fig1_2hour / IMSM_104830 LCMS (Liquid Chromatography- Mass Spectrometry) ABI Sciex 5500 QTrap Triple quadrupole Electrospray Ionization - ESI Positive MultiQuant
7 IME_103340 Fig1_4hour / IMSM_104883 LCMS (Liquid Chromatography- Mass Spectrometry) ABI Sciex 5500 QTrap Triple quadrupole Electrospray Ionization - ESI Positive MultiQuant
8 IME_103341 Fig1_4hour / IMSM_104883 LCMS (Liquid Chromatography- Mass Spectrometry) ABI Sciex 5500 QTrap Triple quadrupole Electrospray Ionization - ESI Positive MultiQuant
9 IME_103342 Fig1_4hour / IMSM_104883 LCMS (Liquid Chromatography- Mass Spectrometry) ABI Sciex 5500 QTrap Triple quadrupole Electrospray Ionization - ESI Positive MultiQuant
10 IME_103343 Fig1_4hour / IMSM_104883 LCMS (Liquid Chromatography- Mass Spectrometry) ABI Sciex 5500 QTrap Triple quadrupole Electrospray Ionization - ESI Positive MultiQuant

Sr.No First name Last name Email Organization Designation
1 Sunil Laxman sunil@instem.res.in BRIC inStem principal_investigator
2 Ganesh Muthu ganeshm@instem.res.in BRIC inStem research_scholar
3 Shabbir Ahmad shabbirmd@instem.res.in BRIC inStem postdoctoral_researcher

Sr.No ftprun ID MS Exp ID MS Data Files
101 IMR_104038 IME_103434 Fig4A_13C_Asp_24h_C.wiff
102 IMR_104039 IME_103435 Fig4A_13C_Asp_24h_C.wiff.scan
103 IMR_104040 IME_103436 Fig4B_4h_A.wiff
104 IMR_104041 IME_103437 Fig4B_4h_A.wiff.scan
105 IMR_104042 IME_103438 Fig4B_4h_B.wiff
106 IMR_104043 IME_103439 Fig4B_4h_B.wiff.scan
107 IMR_104044 IME_103440 Fig4B_4h_C.wiff
108 IMR_104045 IME_103441 Fig4B_4h_C.wiff.scan
109 IMR_104046 IME_103442 Fig4B_24h_A.wiff
110 IMR_104047 IME_103443 Fig4B_24h_A.wiff.scan