M/Z: 981.5646

Hit 1 annotations: Dynorphin A 1-8_[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 1 Reference Ions Near m/z 981.5646

NovoCell ID	m/z	Mass Window	Metabolite	Ranking	Anatomy Context
MSI_000006584 Reliable	981.5598	981.5594 ~ 981.56 MzDiff: `2.3 ppm`	Ziziphin (BioDeep_00000007098) Formula: C51H80O18 (980.5344)	7.78 (100%)	Rattus norvegicus [UBERON:0004358] caput epididymis

Found 2 Sample Hits

Metabolite	Species	Sample
Dynorphin A 1-8 Formula: C46H72N14O10 (980.5556) Adducts: [M+H]+ (Ppm: 1.8)	Homo sapiens (Liver)	20171107_FIT4_DHBpos_p70_s50 Resolution: 50μm, 70x70 Description
Dynorphin A 1-8 Formula: C46H72N14O10 (980.5556) Adducts: [M+H]+ (Ppm: 1.6)	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.

Metabolite

Species

Sample

Dynorphin A 1-8

Formula: C46H72N14O10 (980.5556)
Adducts: [M+H]+ (Ppm: 1.8)

Homo sapiens (Liver)

20171107_FIT4_DHBpos_p70_s50

Resolution: 50μm, 70x70

Description

Dynorphin A 1-8

Formula: C46H72N14O10 (980.5556)
Adducts: [M+H]+ (Ppm: 1.6)

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.