title: Functional characterization of a putative endoglucanase gene in the genome of Zymomonas mobilis.
abstract: The sequence of the putative endoglucanase gene ZMO1086 in the genome of Zymomonas mobilis showed a 40% similarity with known bacterial endoglucanase genes. The upstream region of this putative gene revealed the presence of characteristic promoter (-10 and -35 regions) and a Shine-Dalgarno region. The putative endoglucanase gene was poorly expressed from the native promoter of Z. mobilis and therefore the putative endoglucanase gene was cloned and expressed in Escherichia coli BL21. The overexpressed gene product CelA was purified to homogeneity and the optimal activity was observed at 30 degrees C and pH 6 respectively.
authors.affiliation: Department of Genetics, Center for Excellence in Genomic Sciences, School of Biological Sciences, Madurai Kamaraj University, Madurai 625021, India.
authors.forename: K N
authors.initials: KN
authors.lastname: Rajnish
authors.forename: G M Kishore
authors.initials: GM
authors.lastname: Choudhary
authors.forename: P
authors.initials: P
authors.lastname: Gunasekaran
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D002480:Cellulase / Q000032:analysis / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D004795:Enzyme Stability; D004926:Escherichia coli; D015964:Gene Expression Regulation, Bacterial; D005798:Genes, Bacterial; D006863:Hydrogen-Ion Concentration; D008969:Molecular Sequence Data; D011401:Promoter Regions, Genetic / Q000235:genetics; D020133:Reverse Transcriptase Polymerase Chain Reaction; D016415:Sequence Alignment; D020539:Sequence Analysis, Protein; D013696:Temperature; D017355:Zymomonas / Q000201:enzymology* / Q000235:genetics*
chemical_list: D002480:Cellulase