Primary Citation PubMed: 24919148
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Structural modeling of tissue-specific mitochondrial alanyl-tRNA synthetase (AARS2) defects predicts differential effects on aminoacylation.
(2015) Front Genet 6
PubMed: 25705216 | PubMedCentral: PMC4319469 | DOI: 10.3389/fgene.2015.00021
This bacterial AlaRS is a homodimer with one subunit crystallized with bound tRNA substrate and an alanyl-adenylate analog in so-called “closed” conformation, while the second subunit ... s in “open,” substrate free conformation ( Naganuma et al., 2014 ; PDB id 3WQY).
Since the template structure of AlaRS of A. fulgidus was resolved as a dimer, with one subunit in a substrate bound “closed” state and the other in a substrate free “open” state ( Naganuma et al., 2014 ), it was possible to use bacterial tRNA Ala and alanyl-adenylate bound to the template structure (chain A in 3WQY) for docking into our model and explore intermolecular interactions within the tertiary complex ( Figure 4 ).
FIGURE 5 Analysis of the contact surface between linker (“safety belt”) and β-barrel of the editing domain in A. fulgidus AlaRS structure (3WQY), which was used as template for modeling.
Publication Year: 2015
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