TY - JOUR
T1 - Proteomic characterisation of polyethylene terephthalate and monomer degradation by Ideonella sakaiensis
AU - Poulsen, Jan Struckmann
AU - Nielsen, Jeppe Lund
N1 - Copyright © 2023 Elsevier B.V. All rights reserved.
PY - 2023/5/15
Y1 - 2023/5/15
N2 - Synthetic plastics, like polyethylene terephthalate (PET), have become an essential part of modern life. Many of these products are remarkably persistent in the environment, and the accumulation in the environment is recognised as a major threat. Therefore, an increasing interest has been focusing on the screening for organisms able to degrade and assimilate the plastic. Ideonella sakaiensis originally isolated from a plastisphere has been reported as a bacterium that was solely thriving on the degradation on PET films. The processes affected by the presence of PET and its monomeric substances terephthalic acid, ethylene glycol, ethyl glycolate, and sodium glyoxylate monohydrate were elucidated by analysis of differential protein expression. The exposure of PET and its monomers induced the MHETase and affect two major pathways: the TCA cycle and the β-oxidation pathway. The increased expression of proteins directly or indirectly involved in these pathways suggests their underlying importance in the degradation of PET by I. sakaiensis since these proteins are mechanistically supporting the enzymes involved in the degradation of PET and its monomers.
AB - Synthetic plastics, like polyethylene terephthalate (PET), have become an essential part of modern life. Many of these products are remarkably persistent in the environment, and the accumulation in the environment is recognised as a major threat. Therefore, an increasing interest has been focusing on the screening for organisms able to degrade and assimilate the plastic. Ideonella sakaiensis originally isolated from a plastisphere has been reported as a bacterium that was solely thriving on the degradation on PET films. The processes affected by the presence of PET and its monomeric substances terephthalic acid, ethylene glycol, ethyl glycolate, and sodium glyoxylate monohydrate were elucidated by analysis of differential protein expression. The exposure of PET and its monomers induced the MHETase and affect two major pathways: the TCA cycle and the β-oxidation pathway. The increased expression of proteins directly or indirectly involved in these pathways suggests their underlying importance in the degradation of PET by I. sakaiensis since these proteins are mechanistically supporting the enzymes involved in the degradation of PET and its monomers.
KW - MHETase
KW - PETase
KW - Plastic degrader
KW - Polyethylene terephthalate
KW - Proteomics
KW - β-Oxidation
UR - http://www.scopus.com/inward/record.url?scp=85151299934&partnerID=8YFLogxK
U2 - 10.1016/j.jprot.2023.104888
DO - 10.1016/j.jprot.2023.104888
M3 - Journal article
C2 - 36965770
SN - 1874-3919
VL - 279
JO - Journal of Proteomics
JF - Journal of Proteomics
M1 - 104888
ER -