An isolated fungal endoglucanase polypeptide, which belongs to glycosyl hydrolase family 45, which shows {HEAD ~ substantial performance} at {TAIL ~ low temperatures}, and which comprises an amino acid sequence having at least 90% sequence identity to SEQ ID NO: 13, 15, 17, 19, 21 or 23 
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An isolated fungal endoglucanase polypeptide , which belongs to glycosyl hydrolase family 45 , which shows { HEAD ~ substantial performance } at { TAIL ~ low temperatures } , and which comprises an amino acid sequence having at least 90 % sequence identity to SEQ ID NO : 13 , 15 , 17 , 19 , 21 or 23
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