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Tryptophanyl-tRNA synthetase (TrpRS) consists of two identical subunits that induce the cross-subunit binding mode of tRNA(Trp). It has been shown that eubacterial and eukaryotic TrpRSs cannot efficiently cross-aminoacylate the corresponding tRNA(Trp). Although the identity elements in tRNA(Trp) that confer the species-specific recognition have been(More)
The mechanism of arachidonic acid (ARA) content increase during aging of Mortierella alpina was elucidated. Lipid fraction analysis showed that ARA content increased from 46.9% to 66.4% in the triacylglycerol (TAG) molecule, and ARA residue occupation increased in the majority of TAG molecules during the aging process. For the first time, intracellular(More)
BACKGROUND Fungal morphology and aeration play a significant role in the growth process of Mortierella alpina. The production of microbial oil rich in arachidonic acid (ARA) in M. alpina was enhanced by using a multi-stage fermentation strategy which combined fed-batch culture with precise control of aeration and agitation rates at proper times. RESULTS(More)
Hydroxyapatite (HAP) with a porous hollow structure is an ideal biomaterial owing to its excellent biocompatibility and unique architecture. In this study, HAP nanorod-assembled porous hollow polyhedra, consisting of nanorod building blocks, have been successfully prepared at room temperature or under hydrothermal circumstances using a self-sacrificing(More)
The racemic conglomerate (1P-NH3 + 1M-NH3) and enantioenriched bulk samples (1P-H2O or 1M-NH3) of Co(II) metal–organic frameworks were obtained from achiral precursors under different solvothermal conditions. The bulk homochirality was generated through asymmetrical crystallization in the absence of any chiral additives confirmed by single crystal X-ray(More)
A series of Ag(I) coordination oligomers with Ag-Ag distances tuned by amine auxiliary ligands were designed and synthesized. Their dual emissions could be adjusted by changing either excitation energy or temperature. The emission assignments were clarified by both experimental and DFT evidence herein.
A new microporous luminescent coordination polymer [(CH3)2NH2]·[Cu2(CN)3] (1) with channels occupied by dimethylamine cations was synthesized due to the inducing effect of 2-(2'-pyridyl)imidazole. Complex 1 exhibits bright-green emission in the solid state, and its emission intensity would be significantly enhanced, especially by DMAc and cupric ion after(More)
Atractylodis Macrocephalae Rhizoma and Atractylodis Rhizoma were widely used in strengthening spleen under different disease conditions, and were easily and often misused each other. Therefore, DNA barcode was used to distinguish Atractylodis Macrocephalae Rhizoma and Atractylodis Rhizoma from their adulterants to ensure the safe use. The sequence lengths(More)
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