| abstract |
A novel thermostable cellobiohydrolase exhibiting cellobiohydrolase activity under conditions of at least 75 ° C. and pH 5, a polynucleotide encoding the thermostable cellobiohydrolase, and expression of the thermostable cellobiohydrolase For producing a cellulosic degradation product using the thermostable cellobiohydrolase, and a transformant incorporating the expression vector. A polypeptide comprising an amino acid sequence represented by a specific sequence or another specific sequence, lacking one or several amino acids of the amino acid sequence represented by the above specific or other specific sequence A heat-resisting polypeptide which is a polypeptide comprising an amino acid sequence deleted, substituted or added, or a polypeptide comprising an amino acid sequence having 60% or more sequence identity with the above-mentioned specific or other specific sequence Cellobiohydrolase. [Selection figure] None |