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 3 Reference Ions Near m/z 619.0698
NovoCell ID m/z Mass Window Metabolite Ranking Anatomy Context
MSI_000017664 Reliable 619.0699 619.0698 ~ 619.0699
MzDiff: 0.6 ppm
2-{3-[2,3-dihydroxy-5-(3,5,7-trihydroxy-4-oxochromen-2-yl)phenoxy]-4,5-dihydroxyphenyl}-3,5,7-trihydroxychromen-4-one (BioDeep_00002123606)
Formula: C30H18O15 (618.0646)
1.76 (100%) Vitis vinifera
[PO:0009087] mesocarp
MSI_000016564 Unreliable 619.0699 619.0698 ~ 619.0699
MzDiff: 0.6 ppm
2-{3-[2,3-dihydroxy-5-(3,5,7-trihydroxy-4-oxochromen-2-yl)phenoxy]-4,5-dihydroxyphenyl}-3,5,7-trihydroxychromen-4-one (BioDeep_00002123606)
Formula: C30H18O15 (618.0646)
0.56 (100%) Vitis vinifera
[PO:0009086] endocarp
MSI_000003978 Unreliable 619.0688 619.0688 ~ 619.0688
MzDiff: none
Heptacarboxyporphyrin (BioDeep_00000179713)
Formula: C27H14N4O14 (618.0507)
1.23 (100%) Homo sapiens
[UBERON:0002107] liver

Found 9 Sample Hits
Metabolite Species Sample
Heptacarboxyporphyrin

Formula: C27H14N4O14 (618.0507)
Adducts: [M+H]+ (Ppm: 17.6)
Homo sapiens (Liver)
20171107_FIT4_DHBpos_p70_s50
Resolution: 50μm, 70x70

Description

2-{3-[2,3-dihydroxy-5-(3,5,7-trihydroxy-4-oxochromen-2-yl)phenoxy]-4,5-dihydroxyphenyl}-3,5,7-trihydroxychromen-4-one

Formula: C30H18O15 (618.0646)
Adducts: [M+H]+ (Ppm: 3.1)
Vitis vinifera (Fruit)
grape_dhb_91_1
Resolution: 50μm, 120x114

Description

Grape berries fruit, condition: Ripe

2-{3-[2,3-dihydroxy-5-(3,5,7-trihydroxy-4-oxochromen-2-yl)phenoxy]-4,5-dihydroxyphenyl}-3,5,7-trihydroxychromen-4-one

Formula: C30H18O15 (618.0646)
Adducts: [M+H]+ (Ppm: 3.3)
Vitis vinifera (Fruit)
grape_dhb_164_1
Resolution: 17μm, 136x122

Description

Grape berries fruit, condition: Late

2-{3-[2,3-dihydroxy-5-(3,5,7-trihydroxy-4-oxochromen-2-yl)phenoxy]-4,5-dihydroxyphenyl}-3,5,7-trihydroxychromen-4-one

Formula: C30H18O15 (618.0646)
Adducts: [M+H]+ (Ppm: 3.1)
Vitis vinifera (Fruit)
grape_dhb_163_1
Resolution: 17μm, 132x115

Description

Grape berries fruit, condition: Late

Heptacarboxyporphyrin

Formula: C27H14N4O14 (618.0507)
Adducts: [M+H]+ (Ppm: 16.8)
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.

Heptacarboxyporphyrin

Formula: C27H14N4O14 (618.0507)
Adducts: [M+H]+ (Ppm: 17.4)
Mus musculus (Lung)
image4
Resolution: 40μm, 162x156

Description

Fig 6c Fig. 6 MALDI-MSI of U13C-PC16:0/16:0 acyl chain remodeling. A: Averaged MALDI mass spectrum from lung tissue collected from mice euthanized 12 h after administration of D9-choline and U13C-DPPC–containing Poractant alfa surfactant. The ion at m/z 828.6321 is assigned as the [M+Na]+ ion of 13C24-PC16:0_20:4 formed by acyl remodeling of U13C-PC16:0/16:0. The “NL” value refers to the intensity of the base peak in the full range MS1 spectrum. B: MS/MS spectrum of precursor ions at m/z 828.5 ± 0.5 with fragment ions originating from [13C24-PC16:0_20:4+Na]+ annotated. Part-per-million (ppm) mass errors are provided in parentheses. C, D: MALDI-MSI data of [U13C-DPPC+Na]+ (blue), [PC36:4+Na]+ (green) and [13C24-PC16:0_20:4+Na]+ (red) in lung tissue collected from mice (C) 12 h and (D) 18 h after label administration. All images were visualized using total-ion-current normalization and hotspot removal (high quantile = 99%). MS/MS, tandem mass spectrometry; MSI, mass spectrometry imaging; PC, phosphatidylcholine; U13C-DPPC, universally 13C-labeled dipalmitoyl PC.

2-phospho-4-(cytidine 5'-diphospho)-2-C-methyl-D-erythritol

Formula: C14H26N3O17P3 (601.0475)
Adducts: [M+NH4]+ (Ppm: 19.9)
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.

2-{3-[2,3-dihydroxy-5-(3,5,7-trihydroxy-4-oxochromen-2-yl)phenoxy]-4,5-dihydroxyphenyl}-3,5,7-trihydroxychromen-4-one

Formula: C30H18O15 (618.0646)
Adducts: [M+H]+ (Ppm: 11.9)
Mytilus edulis (mantle)
20190201_MS38_Crassostrea_Mantle_350-1500_DHB_pos_A28_10um_270x210
Resolution: 10μm, 270x210

Description

m/z_619.0699

Formula: - (n/a)
Adducts: (Ppm: 0)
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