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Tytuł:
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Direct Recovery of the Rare Earth Elements Using a Silk Displaying a Metal-Recognizing Peptide.
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Autorzy:
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Ishida N; Strategic Research Division, TOYOTA Central R&D Labs, Inc., 41-1, Yokomichi, Nagakute, Aichi 480-1192, Japan.
Hatanaka T; Strategic Research Division, TOYOTA Central R&D Labs, Inc., 41-1, Yokomichi, Nagakute, Aichi 480-1192, Japan.
Hosokawa Y; Strategic Research Division, TOYOTA Central R&D Labs, Inc., 41-1, Yokomichi, Nagakute, Aichi 480-1192, Japan.
Kojima K; Silk Materials Research Unit, Division of Biotechnology, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), 1-2, Owashi, Tsukuba, Ibaraki 305-8634, Japan.
Iizuka T; Transgenic Silkworm Research Unit, Division of Biotechnology, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), 1-2, Owashi, Tsukuba, Ibaraki 305-8634, Japan.
Teramoto H; Silk Materials Research Unit, Division of Biotechnology, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), 1-2, Owashi, Tsukuba, Ibaraki 305-8634, Japan.
Sezutsu H; Transgenic Silkworm Research Unit, Division of Biotechnology, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), 1-2, Owashi, Tsukuba, Ibaraki 305-8634, Japan.
Kameda T; Silk Materials Research Unit, Division of Biotechnology, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), 1-2, Owashi, Tsukuba, Ibaraki 305-8634, Japan.
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Źródło:
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Molecules (Basel, Switzerland) [Molecules] 2020 Feb 10; Vol. 25 (3). Date of Electronic Publication: 2020 Feb 10.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Original Publication: Basel, Switzerland : MDPI, c1995-
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MeSH Terms:
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Bombyx/*genetics
Dysprosium/*metabolism
Peptides/*chemistry
Recombinant Fusion Proteins/*metabolism
Silk/*genetics
Animals ; Animals, Genetically Modified ; Dysprosium/isolation & purification ; Fibroins/genetics ; Metals, Rare Earth/isolation & purification ; Metals, Rare Earth/metabolism ; Peptides/genetics ; Peptides/metabolism ; Powders ; Recombinant Fusion Proteins/genetics ; Recombinant Fusion Proteins/isolation & purification ; Silk/chemistry ; Silk/metabolism ; Spectrometry, X-Ray Emission
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References:
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Contributed Indexing:
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Keywords: dysprosium; rare earth elements; rare earth recovery; transgenic silkworm
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Substance Nomenclature:
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0 (Metals, Rare Earth)
0 (Peptides)
0 (Powders)
0 (Recombinant Fusion Proteins)
0 (Silk)
1D4N45714Q (Dysprosium)
9007-76-5 (Fibroins)
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Entry Date(s):
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Date Created: 20200214 Date Completed: 20201211 Latest Revision: 20201214
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Update Code:
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20240105
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PubMed Central ID:
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PMC7037070
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DOI:
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10.3390/molecules25030761
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PMID:
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32050621
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Rare earth elements (RE) are indispensable metallic resources in the production of advanced materials; hence, a cost- and energy-effective recovery process is required to meet the rapidly increasing RE demand. Here, we propose an artificial RE recovery approach that uses a functional silk displaying a RE-recognizing peptide. Using the piggyBac system, we constructed a transgenic silkworm in which one or two copies of the gene coding for the RE-recognizing peptide (Lamp1) was fused with that of the fibroin L (FibL) protein. The purified FibL-Lamp1 fusion protein from the transgenic silkworm was able to recognize dysprosium (Dy 3+ ), a RE, under physiological conditions. This method can also be used with silk from which sericin has been removed. Furthermore, the Dy-recovery ability of this silk was significantly improved by crushing the silk. Our simple approach is expected to facilitate the direct recovery of RE from an actual mixed solution of metal ions, such as seawater and industrial wastewater, under mild conditions without additional energy input.
Competing Interests: The authors declare no conflict of interest.