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 513.0288
NovoCell ID m/z Mass Window Metabolite Ranking Anatomy Context
MSI_000017504 Reliable 513.0287 513.0287 ~ 513.0288
MzDiff: 0.5 ppm
5,5,5-trichloro-2-(4,4-dichloro-n,3-dimethylbutanamido)-4-methyl-n-(1,3-thiazol-2-ylmethyl)pentanimidic acid (BioDeep_00002062918)
Formula: C16H22Cl5N3O2S (494.9875)
2.19 (67%) Vitis vinifera
[PO:0009087] mesocarp
MSI_000017647 Reliable 513.0379 513.0379 ~ 513.038
MzDiff: 0.1 ppm
Dihydroneopterin triphosphate (BioDeep_00000005694)
Formula: C9H16N5O13P3 (494.9957)
1.79 (100%) Vitis vinifera
[PO:0009087] mesocarp
MSI_000016821 Unavailable 513.0379 513.0379 ~ 513.0379
MzDiff: 0.1 ppm
Dihydroneopterin triphosphate (BioDeep_00000005694)
Formula: C9H16N5O13P3 (494.9957)
-0.06 (100%) Vitis vinifera
[PO:0009086] endocarp
MSI_000038503 Unreliable 513.0222 513.0222 ~ 513.0222
MzDiff: none
5,5,5-trichloro-2-(4,4-dichloro-n,3-dimethylbutanamido)-4-methyl-n-(1,3-thiazol-2-ylmethyl)pentanimidic acid (BioDeep_00002062918)
Formula: C16H22Cl5N3O2S (494.9875)
1.86 (100%) Posidonia oceanica
[PO:0005059] root endodermis
MSI_000025050 Unreliable 513.023 513.023 ~ 513.023
MzDiff: none
Dihydroneopterin triphosphate (BioDeep_00000005694)
Formula: C9H16N5O13P3 (494.9957)
1.73 (100%) Mus musculus
[UBERON:0004269] upper arm connective tissue

Found 5 Sample Hits
Metabolite Species Sample
Dihydroneopterin triphosphate

Formula: C9H16N5O13P3 (494.9957)
Adducts: [M+NH4]+ (Ppm: 4)
Homo sapiens (Liver)
20171107_FIT4_DHBpos_p70_s50
Resolution: 50μm, 70x70

Description

m/z_513.0288

Formula: - (n/a)
Adducts: (Ppm: )
Vitis vinifera (Fruit)
grape_dhb_91_1
Resolution: 50μm, 120x114

Description

Grape berries fruit, condition: Ripe

5,5,5-trichloro-2-(4,4-dichloro-n,3-dimethylbutanamido)-4-methyl-n-(1,3-thiazol-2-ylmethyl)pentanimidic acid

Formula: C16H22Cl5N3O2S (494.9875)
Adducts: [M+NH4]+ (Ppm: 14.5)
Vitis vinifera (Fruit)
grape_dhb_164_1
Resolution: 17μm, 136x122

Description

Grape berries fruit, condition: Late

5,5,5-trichloro-2-(4,4-dichloro-n,3-dimethylbutanamido)-4-methyl-n-(1,3-thiazol-2-ylmethyl)pentanimidic acid

Formula: C16H22Cl5N3O2S (494.9875)
Adducts: [M+NH4]+ (Ppm: 14.3)
Vitis vinifera (Fruit)
grape_dhb_163_1
Resolution: 17μm, 132x115

Description

Grape berries fruit, condition: Late

Dihydroneopterin triphosphate

Formula: C9H16N5O13P3 (494.9957)
Adducts: [M+NH4]+ (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.