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Kim HI, Kwon OC, Kong WS, et al. Genome-Wide Identification and Characterization of Novel Laccase Genes in the White-Rot Fungus Flammulina velutipes. Mycobiology. 2014;42(4):322-30doi: 10.5941/MYCO.2014.42.4.322.
Kim, H. I., Kwon, O. C., Kong, W. S., Lee, C. S., & Park, Y. J. (2014). Genome-Wide Identification and Characterization of Novel Laccase Genes in the White-Rot Fungus Flammulina velutipes. Mycobiology, 42(4), 322-30. https://doi.org/10.5941/MYCO.2014.42.4.322
Kim, Hong-Il, et al. "Genome-Wide Identification and Characterization of Novel Laccase Genes in the White-Rot Fungus Flammulina velutipes." Mycobiology vol. 42,4 (2014): 322-30. doi: https://doi.org/10.5941/MYCO.2014.42.4.322
Kim HI, Kwon OC, Kong WS, Lee CS, Park YJ. Genome-Wide Identification and Characterization of Novel Laccase Genes in the White-Rot Fungus Flammulina velutipes. Mycobiology. 2014 Dec;42(4):322-30. doi: 10.5941/MYCO.2014.42.4.322. Epub 2014 Dec 31. PMID: 25606003; PMCID: PMC4298835.
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Mycobiology. 2014 Dec;42(4):322-30. doi: 10.5941/MYCO.2014.42.4.322. Epub 2014 Dec 31.

Genome-Wide Identification and Characterization of Novel Laccase Genes in the White-Rot Fungus Flammulina velutipes.

Mycobiology

Hong-Il Kim, O-Chul Kwon, Won-Sik Kong, Chang-Soo Lee, Young-Jin Park

Affiliations

  1. Department of Biomedical Chemistry, Konkuk University, Chungju 380-701, Korea.
  2. Mushroom Research Division, National Institute of Horticultural and Herbal Science, Rural Development Administration, Suwon 440-706, Korea.

PMID: 25606003 PMCID: PMC4298835 DOI: 10.5941/MYCO.2014.42.4.322

Abstract

The aim of this study was to identify and characterize new Flammulina velutipes laccases from its whole-genome sequence. Of the 15 putative laccase genes detected in the F. velutipes genome, four new laccase genes (fvLac-1, fvLac-2, fvLac3, and fvLac-4) were found to contain four complete copper-binding regions (ten histidine residues and one cysteine residue) and four cysteine residues involved in forming disulfide bridges, fvLac-1, fvLac-2, fvLac3, and fvLac-4, encoding proteins consisting of 516, 518, 515, and 533 amino acid residues, respectively. Potential N-glycosylation sites (Asn-Xaa-Ser/Thr) were identified in the cDNA sequence of fvLac-1 (Asn-454), fvLac-2 (Asn-437 and Asn-455), fvLac-3 (Asn-111 and Asn-237), and fvLac4 (Asn-402 and Asn-457). In addition, the first 19~20 amino acid residues of these proteins were predicted to comprise signal peptides. Laccase activity assays and reverse transcription polymerase chain reaction analyses clearly reveal that CuSO4 affects the induction and the transcription level of these laccase genes.

Keywords: Copper sulfate; Flammulina velutipes; Genome; Laccase

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