ArticleActa crystallographica. Section D, Structural biology2019
Structural basis for the diversity of the mechanism of nucleotide hydrolysis by the aminoglycoside-2''-phosphotransferases.
Article in Acta crystallographica. Section D, Structural biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed, 6 citations in OpenAlex.
- A One Health approach for the genomic characterization of antibiotic-resistantFrontiers in microbiology · 2025Article
- Ephedra sinica polysaccharide regulate the anti-inflammatory immunity of intestinal microecology and bacterial metabolites in rheumatoid arthritis.Frontiers in pharmacology · 2024Article
- Identification and characterization of a novel chromosomal aminoglycoside 3'-Frontiers in microbiology · 2023Article
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5 authors at 2 institutions in 1 country.
Funding
Abstract
Aminoglycoside phosphotransferases (APHs) are one of three families of aminoglycoside-modifying enzymes that confer high-level resistance to the aminoglycoside antibiotics via enzymatic modification. This has now rendered many clinically important drugs almost obsolete. The APHs specifically phosphorylate hydroxyl groups on the aminoglycosides using a nucleotide triphosphate as the phosphate donor. The APH(2'') family comprises four distinct members, isolated primarily from Enterococcus sp., which vary in their substrate specificities and also in their preference for the phosphate donor (ATP or GTP). The structure of the ternary complex of APH(2'')-IIIa with GDP and kanamycin was solved at 1.34 Å resolution and was compared with substrate-bound structures of APH(2'')-Ia, APH(2'')-IIa and APH(2'')-IVa. In contrast to the case for APH(2'')-Ia, where it was proposed that the enzyme-mediated hydrolysis of GTP is regulated by conformational changes in its N-terminal domain upon GTP binding, APH(2'')-IIa, APH(2'')-IIIa and APH(2'')-IVa show no such regulatory mechanism, primarily owing to structural differences in the N-terminal domains of these enzymes.
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