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 387.0071
NovoCell ID m/z Mass Window Metabolite Ranking Anatomy Context
MSI_000004594 Unreliable 386.9997 386.9997 ~ 386.9997
MzDiff: none
Uridine 5'-diphosphate (BioDeep_00000002945)
Formula: C9H14N2O12P2 (404.0022)
0.41 (100%) Homo sapiens
[UBERON:0002107] liver
MSI_000040671 Unreliable 386.9987 386.9987 ~ 386.9987
MzDiff: none
Uridine 5'-diphosphate (BioDeep_00000002945)
Formula: C9H14N2O12P2 (404.0022)
2.26 (100%) Posidonia oceanica
[PO:0006036] root epidermis

Found 2 Sample Hits
Metabolite Species Sample
Uridine 5'-diphosphate

Formula: C9H14N2O12P2 (404.0022)
Adducts: [M+H-H2O]+ (Ppm: 0.5)
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.

5,7,11,19-tetraoxapentacyclo[10.8.0.0²,¹⁰.0⁴,⁸.0¹³,¹⁸]icosa-2,4(8),9,13,15,17-hexaen-16-yloxidanesulfonic acid

Formula: C16H12O8S (364.0253)
Adducts: [M+Na]+ (Ppm: 19.1)
Posidonia oceanica (root)
MS1_20180404_PO_1200
Resolution: 17μm, 193x208

Description