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 4 Reference Ions Near m/z 819.5019
NovoCell ID m/z Mass Window Metabolite Ranking Anatomy Context
MSI_000047200 Unreliable 819.51 819.51 ~ 819.51
MzDiff: none
PE(18:2(9Z,12Z)/22:6(5Z,8E,10Z,13Z,15E,19Z)-2OH(7S, 17S)) (BioDeep_00000186466)
Formula: C45H74NO10P (819.505)
2.58 (100%) Homo sapiens
[UBERON:0013067] colorectal mucosa
MSI_000047399 Unreliable 819.5019 819.5019 ~ 819.5019
MzDiff: none
Dinophysistoxin 1 (BioDeep_00000011452)
Formula: C45H70O13 (818.4816)
2.32 (100%) Homo sapiens
[UBERON:0013067] colorectal mucosa
MSI_000052494 Unreliable 819.5045 819.5045 ~ 819.5045
MzDiff: none
Dinophysistoxin 1 (BioDeep_00000011452)
Formula: C45H70O13 (818.4816)
1.93 (100%) Homo sapiens
[UBERON:0001052] rectum
MSI_000026802 Unreliable 819.5094 819.5094 ~ 819.5094
MzDiff: 0.2 ppm
Roxithromycin (BioDeep_00000001563)
Formula: C41H76N2O15 (836.5245)
3.25 (100%) Mus musculus
[UBERON:0002048] lung

Found 4 Sample Hits
Metabolite Species Sample
Roxithromycin

Formula: C41H76N2O15 (836.5245)
Adducts: [M+H-H2O]+ (Ppm: 16.2)
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.

Dinophysistoxin 1

Formula: C45H70O13 (818.4816)
Adducts: [M+H]+ (Ppm: 15.9)
Homo sapiens (colorectal adenocarcinoma)
80TopL, 50TopR, 70BottomL, 60BottomR-profile
Resolution: 17μm, 137x136

Description

The human colorectal adenocarcinoma sample was excised during a surgical operation performed at the Imperial College Healthcare NHS Trust. The sample and procedures were carried out in accordance with ethical approval (14/EE/0024).

PS(18:4(6Z,9Z,12Z,15Z)/20:5(5Z,8Z,11Z,14Z,17Z))

Formula: C44H68NO10P (801.4581)
Adducts: [M+NH4]+ (Ppm: 11.7)
Homo sapiens (colorectal adenocarcinoma)
520TopL, 490TopR, 510BottomL, 500BottomR-profile
Resolution: 17μm, 147x131

Description

The human colorectal adenocarcinoma sample was excised during a surgical operation performed at the Imperial College Healthcare NHS Trust. The sample and procedures were carried out in accordance with ethical approval (14/EE/0024).

Dinophysistoxin 1

Formula: C45H70O13 (818.4816)
Adducts: [M+H]+ (Ppm: 19)
Homo sapiens (colorectal adenocarcinoma)
439TopL, 409TopR, 429BottomL, 419BottomR-profile
Resolution: 17μm, 157x136

Description

The human colorectal adenocarcinoma sample was excised during a surgical operation performed at the Imperial College Healthcare NHS Trust. The sample and procedures were carried out in accordance with ethical approval (14/EE/0024).