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International Journal of Medicinal Mushrooms

Publication de 12  numéros par an

ISSN Imprimer: 1521-9437

ISSN En ligne: 1940-4344

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.2 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.4 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00066 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.34 SJR: 0.274 SNIP: 0.41 CiteScore™:: 2.8 H-Index: 37

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Cloning and Characterization of Laccase DNA from the Royal Sun Medicinal Mushroom, Agaricus brasiliensis (Higher Basidiomycetes)

Volume 16, Numéro 4, 2014, pp. 375-393
DOI: 10.1615/IntJMedMushrooms.v16.i4.80
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RÉSUMÉ

Laccase isozymes have been identified in several fungi. We report the cloning of 4 laccase genes from the medicinal mushroom Agaricus brasiliensis. The lac1 gene contained a 1560-base pair (bp) open reading frame (ORF) encoding 520 amino acids that was interrupted with 14 introns in genomic DNA. The deduced amino acid sequence indicated a multicopper oxidase signature 1 and 2 multicopper oxidase signature 2. The lac2 gene contained a 1566-bp ORF encoding 522 amino acids that was interrupted with 13 introns in genomic DNA. A number of different nucleotides were observed in whole regions containing the substitution of amino acid residues (lac2a and lac2b). The partial DNA fragments of lac3 and lac4 genes were subcloned using the semi-random two-step polymerase chain reaction method. The lac3 and lac4 genes contained coding sequences with a 1575-bp ORF encoding 525 amino acids and a 1584-bp ORF encoding 528 amino acids, respectively. However, the whole complementary DNA fragment of both laccases could not be amplified with polymerase chain reaction against the complementary DNA library; therefore, introns were deduced based on the GT-AG rule and multiple alignment of laccases from other fungi, which showed high identity. All laccases from A. brasiliensis conserved the fungal laccase signature sequence and suggest 2 subfamilies according to the location of introns and phylogenetic analysis. The genes lac2 and lac4 had a high degree of identity, and the lac2a gene was located upstream of the lac4 gene.

CITÉ PAR
  1. Tajima Katsuya, Akanuma Satoshi, Matsumoto-Akanuma Akiko, Yamanaka Daisuke, Ishibashi Ken-ichi, Adachi Yoshiyuki, Ohno Naohito, Activation of macrophages by a laccase-polymerized polyphenol is dependent on phosphorylation of Rac1, Biochemical and Biophysical Research Communications, 495, 3, 2018. Crossref

  2. Hamuro Yuhi, Tajima Katsuya, Matsumoto-Akanuma Akiko, Sakamoto Sayaka, Furukawa Ryutaro, Yamagishi Akihiko, Ohno Naohito, Akanuma Satoshi, Characterization of a thermostable mutant of Agaricus brasiliensis laccase created by phylogeny-based design, Journal of Bioscience and Bioengineering, 124, 6, 2017. Crossref

  3. Kim Seonghun, Mushroom Ligninolytic Enzymes―Features and Application of Potential Enzymes for Conversion of Lignin into Bio-Based Chemicals and Materials, Applied Sciences, 11, 13, 2021. Crossref

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