This family includes fungal tannase [1] and feruloyl esterase [2-3]. It also includes several bacterial homologues of unknown function.

1: Cloning and sequencing of the gene encoding tannase and a structural study of the tannase subunit from Aspergillus oryzae. Hatamoto O, Watarai T, Kikuchi M, Mizusawa K, Sekine H; Gene 1996;175:215-221. PMID:8917102

2: The Aspergillus niger faeB gene encodes a second feruloyl esterase involved in pectin and xylan degradation and is specifically induced in the presence of aromatic compounds. de Vries RP, vanKuyk PA, Kester HC, Visser J; Biochem J 2002;363:377-386. PMID:11931668

3: Purification and characterization of a novel esterase induced by growth of Aspergillus niger on sugar-beet pulp. Kroon PA, Faulds CB, Williamson G; Biotechnol Appl Biochem 1996;23:255-262. PMID:8679110