M/Z: 988.1516

Hit 1 annotations: Oligoadenylate_[M+H-H2O]+

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 7 Reference Ions Near m/z 988.1516

NovoCell ID	m/z	Mass Window	Metabolite	Ranking	Anatomy Context
MSI_000011164 Unreliable	988.1516	988.1516 ~ 988.1516 MzDiff: `none`	Not Annotated	1.87 (%)	Mus musculus [UBERON:0012378] muscle layer of urinary bladder
MSI_000010588 Unavailable	988.1568	988.1568 ~ 988.1569 MzDiff: `0.1 ppm`	Not Annotated	-1.94 (%)	Bathymodiolus [UBERON:0009120] gill filament
MSI_000009466 Unavailable	988.1516	988.1516 ~ 988.1516 MzDiff: `none`	Not Annotated	-0.48 (%)	Mus musculus [UBERON:0004645] urinary bladder urothelium
MSI_000012154 Unavailable	988.1569	988.1569 ~ 988.1569 MzDiff: `0.0 ppm`	Not Annotated	-0.96 (%)	Bathymodiolus [UBERON:2000211] gill lamella
MSI_000054579 Unreliable	988.1571	988.1571 ~ 988.1571 MzDiff: `none`	Oligoadenylate (BioDeep_00000181947) Formula: C30H38N15O19P3 (1005.1681)	1.98 (100%)	MALDI - DHB [NOVOCELL:BACKGROUND] blank
MSI_000000992 Unavailable	988.1516	988.1516 ~ 988.1516 MzDiff: `none`	Not Annotated	-0.89 (%)	Mus musculus [CL:0000066] epithelial cell
MSI_000004427 Unreliable	988.1569	988.1569 ~ 988.1569 MzDiff: `none`	Not Annotated	0.62 (%)	Homo sapiens [UBERON:0002107] liver

Found 3 Sample Hits

Metabolite Species Sample

Metabolite	Species	Sample
m/z_988.1516 Formula: - (n/a) Adducts: (Ppm: )	Mus musculus (Urinary bladder)	HR2MSI_mouse_urinary_bladder - S096 Resolution: 10μm, 260x134 Description Mass spectrometry imaging of phospholipids in mouse urinary bladder (imzML dataset) The spatial distribution of phospholipids in a tissue section of mouse urinary bladder was analyzed by MALDI MS imaging at 10 micrometer pixel size with high mass resolution (using an LTQ Orbitrap mass spectrometer). R, ö, mpp A, Guenther S, Schober Y, Schulz O, Takats Z, Kummer W, Spengler B, Histology by mass spectrometry: label-free tissue characterization obtained from high-accuracy bioanalytical imaging. Angew Chem Int Ed Engl, 49(22):3834-8(2010) Fig. S2: Single ion images of compounds shown in Fig. 1A-B : (upper left to lower right) m/z = 743.5482 (unknown), m/z = 741.5307 (SM (16:0), [M+K]+), m/z = 798.5410 (PC (34:1), [M+K]+), m/z = 616.1767 (heme b, M+), m/z = 772.5253 (PC (32:0), [M+K]+). Stability of determined mass values was in the range of +/- 1 ppm over 22 hours of measurement (Fig. S4), with a standard deviation of 0.56 ppm. Accuracy data were obtained during tissue scanning experiments by monitoring the mass signal at nominal mass 798. The internal lock mass function of the Orbitrap instrument was used for automatic calibration during imaging measurements, using the known matrix-related ion signals at m/z = 137.0233, m/z = 444.0925 and m/z = 716.1246.
Oligoadenylate Formula: C30H38N15O19P3 (1005.1681) Adducts: [M+H-H2O]+ (Ppm: 7.8)	Mytilus edulis (mantle)	20190201_MS38_Crassostrea_Mantle_350-1500_DHB_pos_A28_10um_270x210 Resolution: 10μm, 270x210 Description
Oligoadenylate Formula: C30H38N15O19P3 (1005.1681) Adducts: [M+H-H2O]+ (Ppm: 8.7)	Mytilus edulis (gill)	20190202_MS38_Crassostrea_Gill_350-1500_DHB_pos_A25_11um_305x210 Resolution: 11μm, 305x210 Description single cell layer `class_4` is the gill structure cells, metabolite ion 534.2956 is the top representive ion of this type of cell

m/z_988.1516

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

Mus musculus (Urinary bladder)

HR2MSI_mouse_urinary_bladder - S096

Resolution: 10μm, 260x134

Description

Mass spectrometry imaging of phospholipids in mouse urinary bladder (imzML dataset)
The spatial distribution of phospholipids in a tissue section of mouse urinary bladder was analyzed by MALDI MS imaging at 10 micrometer pixel size with high mass resolution (using an LTQ Orbitrap mass spectrometer).

R, ö, mpp A, Guenther S, Schober Y, Schulz O, Takats Z, Kummer W, Spengler B, Histology by mass spectrometry: label-free tissue characterization obtained from high-accuracy bioanalytical imaging. Angew Chem Int Ed Engl, 49(22):3834-8(2010)

Fig. S2: Single ion images of compounds shown in Fig. 1A-B : (upper left to lower right) m/z = 743.5482 (unknown), m/z = 741.5307 (SM (16:0), [M+K]+), m/z = 798.5410 (PC (34:1), [M+K]+), m/z = 616.1767 (heme b, M+), m/z = 772.5253 (PC (32:0), [M+K]+).

Stability of determined mass values was in the range of +/- 1 ppm over 22 hours of measurement (Fig. S4), with a standard deviation of 0.56 ppm. Accuracy data were obtained during tissue scanning experiments by monitoring the mass signal at nominal mass 798. The internal lock mass function of the Orbitrap instrument was used for automatic calibration during imaging measurements, using the known matrix-related ion signals at m/z = 137.0233, m/z = 444.0925 and m/z = 716.1246.

Oligoadenylate

Formula: C30H38N15O19P3 (1005.1681)
Adducts: [M+H-H2O]+ (Ppm: 7.8)

Mytilus edulis (mantle)

20190201_MS38_Crassostrea_Mantle_350-1500_DHB_pos_A28_10um_270x210

Resolution: 10μm, 270x210

Description

Oligoadenylate

Formula: C30H38N15O19P3 (1005.1681)
Adducts: [M+H-H2O]+ (Ppm: 8.7)

Mytilus edulis (gill)

20190202_MS38_Crassostrea_Gill_350-1500_DHB_pos_A25_11um_305x210

Resolution: 11μm, 305x210

Description

single cell layer class_4 is the gill structure cells, metabolite ion 534.2956 is the top representive ion of this type of cell