SEST_like. A family of secreted SGNH-hydrolases similar to Streptomyces scabies esterase (SEST), a causal agent of the potato scab disease, which hydrolyzes a specific ester bond in suberin, a plant lipid. The tertiary fold of this enzyme is substantially different from that of the alpha/beta hydrolase family and unique among all known hydrolases; its active site closely resembles two of the three components of typical Ser-His-Asp(Glu) triad from other serine hydrolases, but may lack the carboxylic acid.