Send to

Choose Destination
FEMS Microbiol Lett. 2000 Apr 15;185(2):163-8.

The polyester polyurethanase gene (pueA) from Pseudomonas chlororaphis encodes a lipase.

Author information

Department of Biological Sciences, Southeastern Louisiana University, SLU 10736, Hammond, LA, USA.


A gene (pueA, polyurethane esterase A) encoding an extracellular polyurethanase (PueA) was cloned from Pseudomonas chlororaphis into Escherichia coli. The enzyme secreted from E. coli showed esterase activity when assayed with p-nitrophenyl acetate. Subcloning of a 3. 2-kb SalI-EcoRI fragment into a T7 RNA polymerase expression vector (pT7-6) produced a (35)S-labeled protein of 65 kDa. Nucleotide sequencing of pueA showed an open reading frame encoding a 65-kDa protein of 617 amino acid residues, with the serine hydrolase consensus sequence GXSXG. PueA was over-expressed using the pT7-6 vector transformed into E. coli BL21(DE3) and was purified in one step using Sephadex G-75.

[Indexed for MEDLINE]
Free full text

Supplemental Content

Full text links

Icon for Silverchair Information Systems Icon for Wiley
Loading ...
Support Center