M/Z: 852.4569

Hit 2 annotations: PA(18:4(6Z,9Z,12Z,15Z)/LTE4)_[M+H]+; Cyclosquamosin B_[M+H]+

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 2 Reference Ions Near m/z 852.4569

NovoCell ID	m/z	Mass Window	Metabolite	Ranking	Anatomy Context
MSI_000022561 Unreliable	852.4498	852.4498 ~ 852.4498 MzDiff: `none`	PA(18:4(6Z,9Z,12Z,15Z)/LTE4) (BioDeep_00000189334) Formula: C44H70NO11PS (851.4407)	1.6 (100%)	Mus musculus [UBERON:0004250] upper arm bone
MSI_000022577 Unreliable	852.4664	852.4664 ~ 852.4664 MzDiff: `none`	Cyclosquamosin B (BioDeep_00000228173) Formula: C39H65N9O10S (851.4575)	1.58 (100%)	Mus musculus [UBERON:0004250] upper arm bone

Found 3 Sample Hits

Metabolite	Species	Sample
PA(18:4(6Z,9Z,12Z,15Z)/LTE4) Formula: C44H70NO11PS (851.4407) Adducts: [M+H]+ (Ppm: 10.5)	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(18:4(6Z,9Z,12Z,15Z)/LTE4) Formula: C44H70NO11PS (851.4407) Adducts: [M+H]+ (Ppm: 2.1)	Mus musculus (Left upper arm)	357_l_total ion count Resolution: 50μm, 97x131 Description Diseased
Cyclosquamosin B Formula: C39H65N9O10S (851.4575) Adducts: [M+H]+ (Ppm: 4.2)	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.

Metabolite

Species

Sample

PA(18:4(6Z,9Z,12Z,15Z)/LTE4)

Formula: C44H70NO11PS (851.4407)
Adducts: [M+H]+ (Ppm: 10.5)

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(18:4(6Z,9Z,12Z,15Z)/LTE4)

Formula: C44H70NO11PS (851.4407)
Adducts: [M+H]+ (Ppm: 2.1)

Mus musculus (Left upper arm)

357_l_total ion count

Resolution: 50μm, 97x131

Description

Diseased

Cyclosquamosin B

Formula: C39H65N9O10S (851.4575)
Adducts: [M+H]+ (Ppm: 4.2)

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.