MSI_000018470

Unreliable

排名分数: 1.76
参考来源: Plant (PO:0020124: root stele)

M/z: 331.0213
Mass Window: 331.0213 ~ 331.0213 (none)

参考注释

Pyrroloquinoline quinone_[M+H]+ (BioDeep_00000004383)
4,5-Dihydro-4,5-dioxo-1H-pyrrolo[2,3-5,6]quinoline-2,7,9-tricarboxylic acid

Formula: C14H6N2O8 (330.0124156)
SMILES: C1=C(C2=C(C(=O)C(=O)C3=C2NC(=C3)C(=O)O)N=C1C(=O)O)C(=O)O

Enzymes containing PQQ are called quinoproteins. PQQ and quinoproteins play a role in the redox metabolism and structural integrity of cells and tissues [PMID:2558842]. It was reported that aminoadipate semialdehyde dehydrogenase (AASDH) might also use PQQ as a cofactor, suggesting a possibility that PQQ is a vitamin in mammals. [PMID:12712191]. Believed to be a mammalian redox-cofactor vitamin (B group). Widely distributed in various foods such as vegetables and meat. Methoxatin is found in animal foods and green vegetables. Pyrroloquinoline quinone (PQQ), a redox co-factor, is an anionic, redox-cycling orthoquinone. Pyrroloquinoline quinone is isolated from cultures of methylotropic bacteria and tissues of mammals. Pyrroloquinoline quinone is an essential nutrient for mammals and is important for immune function[1][2].