Fibrobacter succinogenes S85 has multiple xylanase genes

Four distinct DNA fragments encoding xylanase activities, pBX1.2, pXC30.2, pX14 and LX31, were cloned from plasmid and γ libraries constructed using genomic DNA from Fibrobacter succinogenes S85. pBX1.2 contained an insert which was homologous, and mapped similarly to that previously cloned in pBX1 while the three remaining clones pX14, pXC30 in plasmids, and LX31 in lambda, represented new xylanase activities. The X14 xylanase was a 73 kDa …