Paromomycin

(2S,3S,4R,5R,6R)-5-amino-2-(aminomethyl)-6-{[(2R,3S,4R,5S)-5-{[(1R,2R,3S,5R,6S)-3,5-diamino-2-{[(2S,3R,4R,5S,6R)-3-amino-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-6-hydroxycyclohexyl]oxy}-4-hydroxy-2-(hydroxymethyl)oxolan-3-yl]oxy}oxane-3,4-diol

Formula: C23H45N5O14 (615.2963)
Chinese Name: 巴龙霉素
BioDeep ID: BioDeep_00000003480 ( View LC/MS Profile)
SMILES: NC[C@@H]1O[C@H](O[C@@H]2[C@@H](CO)O[C@@H](O[C@@H]3[C@@H](O)[C@H](N)C[C@H](N)[C@H]3O[C@H]3O[C@H](CO)[C@@H](O)[C@H](O)[C@H]3N)[C@@H]2O)[C@H](N)[C@@H](O)[C@@H]1O



Found 4 Sample Hits

m/z Adducts Species Organ Scanning Sample
633.3341 [M+NH4]+
PPM:6.3		 Mus musculus Lung MALDI (DHB)
image1 - MTBLS2075
Resolution: 40μm, 187x165

Description

Fig. 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
616.3147 [M+H]+
PPM:18.1		 Macropus giganteus Brain MALDI (BPYN)
170321_kangaroobrain-dan3-pos_maxof50.0_med1 - 170321_kangaroobrain-dan3-pos_maxof50.0_med1
Resolution: 50μm, 81x50

Description

Sample information Organism: Macropus giganteus (kangaroo) Organism part: Brain Condition: Wildtype Sample growth conditions: Wild
598.2997 [M+H-H2O]+
PPM:11.2		 Homo sapiens esophagus DESI ()
LNTO22_1_4 - MTBLS385
Resolution: 17μm, 82x80

Description

615.3314 [M-H2O+NH4]+
PPM:19.3		 Homo sapiens esophagus DESI ()
LNTO22_1_4 - MTBLS385
Resolution: 17μm, 82x80

Description


Paromomycin is only found in individuals that have used or taken this drug. It is an oligosaccharide antibiotic produced by various streptomyces. [PubChem]Paromomycin inhibits protein synthesis by binding to 16S ribosomal RNA. Bacterial proteins are synthesized by ribosomal RNA complexes which are composed of 2 subunits, a large subunit (50s) and small (30s) subunit, which forms a 70s ribosomal subunit. tRNA binds to the top of this ribosomal structure. Paramomycin binds to the A site, which causes defective polypeptide chains to be produced. Continuous production of defective proteins eventually leads to bacterial death. A - Alimentary tract and metabolism > A07 - Antidiarrheals, intestinal antiinflammatory/antiinfective agents > A07A - Intestinal antiinfectives > A07AA - Antibiotics D000890 - Anti-Infective Agents > D000977 - Antiparasitic Agents > D000981 - Antiprotozoal Agents C784 - Protein Synthesis Inhibitor > C2363 - Aminoglycoside Antibiotic D000890 - Anti-Infective Agents > D000900 - Anti-Bacterial Agents C254 - Anti-Infective Agent > C258 - Antibiotic KEIO_ID P126