M/Z: 787.4528

Hit 3 annotations: PA(19:2(10Z,13Z)/PGJ2)_[M+Na]+; PG(i-12:0/PGF2alpha)_[M+Na]+; Okadaic acid_[M+H-H2O]+

在BioDeep NovoCell知识数据库中，参考离子总共被划分为4个级别。

Confirmed: 这个参考离子已经通过手动审计得到确认和验证。
Reliable: 这个参考离子可能在特定的解剖组织环境中高度保守。
Unreliable: 这个参考离子具有较高的排名价值，但缺乏可重复性。
Unavailable: 由于排名价值低且缺乏可重复性，这个参考离子不应用于注释。

Found 5 Reference Ions Near m/z 787.4528

NovoCell ID	m/z	Mass Window	Metabolite	Ranking	Anatomy Context
MSI_000031556 Unreliable	787.4515	787.4515 ~ 787.4515 MzDiff: `none`	PG(i-12:0/PGF2alpha) (BioDeep_00000196075) Formula: C38H69O13P (764.4476)	0.36 (100%)	Macropus giganteus [UBERON:0006093] precuneus cortex
MSI_000004238 Unreliable	787.4583	787.4583 ~ 787.4583 MzDiff: `none`	Okadaic acid (BioDeep_00000004800) Formula: C44H68O13 (804.466)	0.85 (100%)	Homo sapiens [UBERON:0002107] liver
MSI_000044335 Unreliable	787.4587	787.4587 ~ 787.4587 MzDiff: `none`	Not Annotated	0.09 (%)	Rattus norvegicus [UBERON:0002264] olfactory bulb
MSI_000030651 Unreliable	787.4609	787.4609 ~ 787.4609 MzDiff: `none`	Not Annotated	1.33 (%)	Macropus giganteus [UBERON:0003027] cingulate cortex
MSI_000031305 Unreliable	787.4609	787.4609 ~ 787.4609 MzDiff: `none`	Not Annotated	1.35 (%)	Macropus giganteus [UBERON:0006093] precuneus cortex

Found 5 Sample Hits

Metabolite	Species	Sample
PA(19:2(10Z,13Z)/PGJ2) Formula: C42H69O10P (764.4628) Adducts: [M+Na]+ (Ppm: 1.1)	Mus musculus (Lung)	image1 Resolution: 40μm, 187x165 Description Fig. 2 MALDI-MSI data from the same mouse lung tissue analyzed in Fig. 1. A: Optical image of the post-MSI, H&E-stained tissue section. B–D, F–G: Ion images of (B) m/z 796.6855 ([U13C-DPPC+Na]+), (C) m/z 756.5514 ([PC32:0+Na]+), (D) m/z 765.6079 ([D9-PC32:0+Na]+), (F) m/z 754.5359 ([PC32:1+Na]+), and (G) m/z 763.5923 ([D9-PC32:1+Na]+). E, H: Ratio images of (E) [D9-PC32:0+Na]+:[PC32:0+Na]+ and (H) [D9-PC32:1+Na]+:[PC32:1+Na]+. Part-per-million (ppm) mass errors are indicated in parentheses. All images were visualized using total-ion-current normalization and using hotspot removal (high quantile = 99%). DPPC = PC16:0/16:0. U13C-DPPC, universally 13C-labeled dipalmitoyl PC; PC, phosphatidylcholine; MSI, mass spectrometry imaging; H&E, hematoxylin and eosin. Fig 1-3, Fig S1-S3, S5
PA(19:2(10Z,13Z)/PGJ2) Formula: C42H69O10P (764.4628) Adducts: [M+Na]+ (Ppm: 8.6)	Mus musculus (Lung)	image3 Resolution: 40μm, 146x190 Description Fig. 4 MALDI-MSI data of mouse lung tissue after administration with D9-choline and U13C-DPPC–containing Poractant alfa surfactant (labels administered 12 h prior to tissue collection). Ion images of (A) m/z 796.6856 ([U13C-DPPC+Na]+), (B) m/z 756.5154 [PC32:0+Na]+), and (C) m/z 765.6079 ([D9-PC32:0+Na]+). D: Overlay image of [U13C-PC32:0+Na]+ (red) and [D9-PC32:0+Na]+ (green). Part-per-million (ppm) mass errors are indicated in parentheses. All images were visualized using total-ion-current normalization and using hotspot removal (high quantile = 99%). DPPC = PC16:0/16:0. MSI, mass spectrometry imaging; PC, phosphatidylcholine; U13C-DPPC, universally 13C-labeled dipalmitoyl PC.
PA(19:2(10Z,13Z)/PGJ2) Formula: C42H69O10P (764.4628) Adducts: [M+Na]+ (Ppm: 1)	Mus musculus (Lung)	image5 Resolution: 40μm, 163x183 Description Supplementary Figure S8. MALDI-MSI data of mouse lung tissue administered with D9-choline and U 13C-DPPC–containing Poractant alfa surfactant (labels administered 18 h prior to sacrifice). Ion images of (a) m/z 796.6856 ([U13C-DPPC+Na]+), (b) m/z 756.5154 [PC32:0+Na]+ and (c) m/z 765.6079 ([D9-PC32:0+Na]+). (d) Overlay image of [U13C-DPPC+Na]+ (red) and [D9-PC32:0+Na]+ (green). Parts per million (ppm) mass errors are indicated in parentheses. All images were visualised using totalion-current normalisation and using hotspot removal (high quantile = 99%). DPPC = PC16:0/16:0.
PG(i-12:0/PGF2alpha) Formula: C38H69O13P (764.4476) Adducts: [M+Na]+ (Ppm: 18.7)	Macropus giganteus (Brain)	170321_kangaroobrain-dan3-pos_maxof50.0_med1 Resolution: 50μm, 81x50 Description Sample information Organism: Macropus giganteus (kangaroo) Organism part: Brain Condition: Wildtype Sample growth conditions: Wild
Okadaic acid Formula: C44H68O13 (804.466) Adducts: [M+H-H2O]+ (Ppm: 5.2)	Drosophila melanogaster (brain)	Drosophila18 Resolution: 5μm, 686x685 Description Sample information Organism: Drosophila melanogaster Organism part: Brain Condition: Healthy Sample preparation Sample stabilisation: Frozen Tissue modification: Frozen MALDI matrix: 2,5-dihydroxybenzoic acid (DHB) MALDI matrix application: TM sprayer Solvent: Aceton/water MS analysis Polarity: Positive Ionisation source: Prototype Analyzer: Orbitrap Pixel size: 5μm × 5μm Annotation settings m/z tolerance (ppm): 3 Analysis version: Original MSM Pixel count: 469910 Imzml file size: 696.23 MB Ibd file size: 814.11 MB