Figure 1
From: Erratum to: Gene cloning and characterization of a novel esterase from activated sludge metagenome
SDS-PAGE of overexpressed esterase EstAS in E. coli. Lane 1: molecular weight protein marker (Tiangen, Cat. No: MP102); lane 2, E. coli/pET28a: total protein extract, as negative control; lane 3: induced culture of E. coli/pET28a, as negative control; lane 4: total protein extract E. coli/pEstAS-His; lane 5, total protein extract, induced culture of E. coli/pEstAS-His; lane 6: purified EstAS (31 kDa).