Opiorphin
Formula: C29H48N12O8 (692.3718)
Chinese Name:
BioDeep ID: BioDeep_00000053853
( View LC/MS Profile)
SMILES: [H][C@](N)(CCC(O)=N)C(O)=N[C@@]([H])(CCCNC(N)=N)C(O)=N[C@@]([H])(CC1=CC=CC=C1)C(O)=N[C@@]([H])(CO)C(O)=N[C@@]([H])(CCCNC(N)=N)C(O)=O
Found 12 Sample Hits
| m/z | Adducts | Species | Organ | Scanning | Sample | |
|---|---|---|---|---|---|---|
| 657.3588 | [M+H-2H2O]+PPM:1.3 |
Homo sapiens | Liver | MALDI (DHB) |
20171107_FIT4_DHBpos_p70_s50 - Rappez et al (2021) SpaceM reveals metabolic states of single cellsResolution: 50μm, 70x70
Description |
|
| 657.3514 | [M+H-2H2O]+PPM:9.9 |
Mus musculus | Lung | MALDI (DHB) |
image1 - MTBLS2075Resolution: 40μm, 187x165
DescriptionFig. 2 MALDI-MSI data from the same mouse lung tissue analyzed in Fig. 1. A: Optical image of the post-MSI, H&E-stained tissue section. B–D, F–G: Ion images of (B) m/z 796.6855 ([U13C-DPPC+Na]+), (C) m/z 756.5514 ([PC32:0+Na]+), (D) m/z 765.6079 ([D9-PC32:0+Na]+), (F) m/z 754.5359 ([PC32:1+Na]+), and (G) m/z 763.5923 ([D9-PC32:1+Na]+). E, H: Ratio images of (E) [D9-PC32:0+Na]+:[PC32:0+Na]+ and (H) [D9-PC32:1+Na]+:[PC32:1+Na]+. 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. U13C-DPPC, universally 13C-labeled dipalmitoyl PC; PC, phosphatidylcholine; MSI, mass spectrometry imaging; H&E, hematoxylin and eosin. Fig 1-3, Fig S1-S3, S5 |
|
| 710.4011 | [M+NH4]+PPM:6.4 |
Mus musculus | Lung | MALDI (DHB) |
image1 - MTBLS2075Resolution: 40μm, 187x165
DescriptionFig. 2 MALDI-MSI data from the same mouse lung tissue analyzed in Fig. 1. A: Optical image of the post-MSI, H&E-stained tissue section. B–D, F–G: Ion images of (B) m/z 796.6855 ([U13C-DPPC+Na]+), (C) m/z 756.5514 ([PC32:0+Na]+), (D) m/z 765.6079 ([D9-PC32:0+Na]+), (F) m/z 754.5359 ([PC32:1+Na]+), and (G) m/z 763.5923 ([D9-PC32:1+Na]+). E, H: Ratio images of (E) [D9-PC32:0+Na]+:[PC32:0+Na]+ and (H) [D9-PC32:1+Na]+:[PC32:1+Na]+. 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. U13C-DPPC, universally 13C-labeled dipalmitoyl PC; PC, phosphatidylcholine; MSI, mass spectrometry imaging; H&E, hematoxylin and eosin. Fig 1-3, Fig S1-S3, S5 |
|
| 710.4044 | [M+NH4]+PPM:1.7 |
Mus musculus | Left upper arm | MALDI (CHCA) |
357_l_total ion count - Limb defect imaging - Monash UniversityResolution: 50μm, 97x131
DescriptionDiseased |
|
| 692.3865 | [M-H2O+NH4]+PPM:12.3 |
Mus musculus | Lung | MALDI (DHB) |
image5 - MTBLS2075Resolution: 40μm, 163x183
DescriptionSupplementary Figure S8. MALDI-MSI data of mouse lung tissue administered with D9-choline and U 13C-DPPC–containing Poractant alfa surfactant (labels administered 18 h prior to sacrifice). 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-DPPC+Na]+ (red) and [D9-PC32:0+Na]+ (green). Parts per million (ppm) mass errors are indicated in parentheses. All images were visualised using totalion-current normalisation and using hotspot removal (high quantile = 99%). DPPC = PC16:0/16:0. |
|
| 693.3895 | [M+H]+PPM:15 |
Mus musculus | Lung | MALDI (DHB) |
image5 - MTBLS2075Resolution: 40μm, 163x183
DescriptionSupplementary Figure S8. MALDI-MSI data of mouse lung tissue administered with D9-choline and U 13C-DPPC–containing Poractant alfa surfactant (labels administered 18 h prior to sacrifice). 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-DPPC+Na]+ (red) and [D9-PC32:0+Na]+ (green). Parts per million (ppm) mass errors are indicated in parentheses. All images were visualised using totalion-current normalisation and using hotspot removal (high quantile = 99%). DPPC = PC16:0/16:0. |
|
| 710.4006 | [M+NH4]+PPM:7.1 |
Mus musculus | Lung | MALDI (DHB) |
image5 - MTBLS2075Resolution: 40μm, 163x183
DescriptionSupplementary Figure S8. MALDI-MSI data of mouse lung tissue administered with D9-choline and U 13C-DPPC–containing Poractant alfa surfactant (labels administered 18 h prior to sacrifice). 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-DPPC+Na]+ (red) and [D9-PC32:0+Na]+ (green). Parts per million (ppm) mass errors are indicated in parentheses. All images were visualised using totalion-current normalisation and using hotspot removal (high quantile = 99%). DPPC = PC16:0/16:0. |
|
| 710.3962 | [M+NH4]+PPM:13.3 |
Mus musculus | Lung | MALDI (DHB) |
image2 - MTBLS2075Resolution: 40μm, 550x256
DescriptionSupplementary Figure S6. Ion distribution images for (a) [PC36:4+Na]+ (m/z 804.5514) and (b) [PC38:6+Na]+ (m/z 828.5515) obtained from mouse lung tissue collected 6 h after administration of D9- choline and U13C-DPPC–containing CHF5633. Parts-per-million (ppm) mass errors are indicated in parentheses. (c) Magnification of the boxed region in (a) with selected bronchiolar regions outlined in white boxes. (d) The corresponding H&E-stained tissue section with the same selected bronchiolar regions outlined in black boxes. These data demonstrate the co-localisation of the polyunsaturated lipids PC36:4 and PC38:6 with the bronchiolar regions of the lung. All MSI images were visualised using total ion current normalisation and hotspot removal (high quantile = 99%). |
|
| 710.4062 | [M+NH4]+PPM:0.8 |
Homo sapiens | esophagus | DESI () |
LNTO22_1_3 - MTBLS385Resolution: 75μm, 121x68
Description |
|
| 715.3592 | [M+Na]+PPM:2.5 |
Homo sapiens | esophagus | DESI () |
LNTO22_1_3 - MTBLS385Resolution: 75μm, 121x68
Description |
|
| 657.3675 | [M+H-2H2O]+PPM:14.6 |
Mytilus edulis | mantle | MALDI (DHB) |
20190216_MS38_Mytilus_mantle_350-1500_DHB_pos_A26_10um_275x210 - MTBLS2960Resolution: 10μm, 275x210
Description |
|
| 657.3595 | [M+H-2H2O]+PPM:2.4 |
Drosophila melanogaster | brain | MALDI (DHB) |
Drosophila18 - 2019-10-16_14h26m34sResolution: 5μm, 686x685
DescriptionSample information Organism: Drosophila melanogaster Organism part: Brain Condition: Healthy Sample preparation Sample stabilisation: Frozen Tissue modification: Frozen MALDI matrix: 2,5-dihydroxybenzoic acid (DHB) MALDI matrix application: TM sprayer Solvent: Aceton/water MS analysis Polarity: Positive Ionisation source: Prototype Analyzer: Orbitrap Pixel size: 5μm × 5μm Annotation settings m/z tolerance (ppm): 3 Analysis version: Original MSM Pixel count: 469910 Imzml file size: 696.23 MB Ibd file size: 814.11 MB |
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Opiorphin is an endogenous 5-residue opioid peptide (Gln-Arg-Phe-Ser-Arg) first isolated from human saliva. Initial research with mice shows the compound has a painkilling effect greater than that of morphine. It works by stopping the normal breakdown of enkephalins, natural pain-killing opioids in the spinal cord. Opiorphin originates from the N-terminal region of the protein PROL1 (proline rich, lacrimal 1) and inhibits three proteases: neutral ecto-endopeptidase (MME), ecto-aminopeptidase N (ANPEP) and a dipeptidyl peptidase DPP3. This protease inhibitory action extends the duration of enkephalins, which are natural pain killers that are released in response to specific potentially painful stimuli. Opiorphin, an opioid peptide, is a potent enkephalin-inactivating zinc ectopeptidases in human inhibitor. Opiorphin inhibits two enkephalin-catabolizing ectoenzymes, human neutral ecto-endopeptidase, hNEP (EC 3.4.24.11) with an IC50 value of 11 μM, and human ecto-aminopeptidase, hAP-N (EC 3.4.11.2). Opiorphin displays potent analgesic activity by activating endogenous opioid-dependent transmission[1][2].
