ArticleScientific reports2021
Structural insights into vesicle amine transport-1 (VAT-1) as a member of the NADPH-dependent quinone oxidoreductase family.
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed, 16 citations in OpenAlex.
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Authors and funding
8 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Vesicle amine transport protein-1 (VAT-1) has been implicated in the regulation of vesicular transport, mitochondrial fusion, phospholipid transport and cell migration, and is a potential target of anticancer drugs. Little is known about the molecular function of VAT-1. The amino acid sequence indicates that VAT-1 belongs to the quinone oxidoreductase subfamily, suggesting that VAT-1 may possess enzymatic activity in unknown redox processes. To clarify the molecular function of VAT-1, we determined the three-dimensional structure of human VAT-1 in the free state at 2.3 Å resolution and found that VAT-1 forms a dimer with the conserved NADPH-binding cleft on each protomer. We also determined the structure of VAT-1 in the NADP-bound state at 2.6 Å resolution and found that NADP binds the binding cleft to create a putative active site with the nicotine ring. Substrate screening suggested that VAT-1 possesses oxidoreductase activity against quinones such as 1,2-naphthoquinone and 9,10-phenanthrenequinone.
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