A global proteome study of Mycobacterium gilvum PYR-GCK grown on pyrene and glucose reveals the activation of glyoxylate, shikimate and gluconeogenetic pathways through the central carbon metabolism highway.
Various hydrocarbons have been released into the environment as a result of industrialization. An effective way of removing these materials without further environmental contamination is microbial bioremediation. Mycobacterium gilvum PYR-GCK, a bacteria isolated from a PAH polluted estuary, was studied using comparative shotgun proteomics to gain insight on its molecular activity while using pyrene and glucose as sole carbon and energy sources. Based on annotated genomic information, a confirmation analysis was first performed to confirm its pyrene degradation activity, using gas chromatography-mass spectrometry technology. One dimensional gel electrophoresis and liquid chromatography-mass spectrometry technologies employed in the proteomics analysis revealed the expression of pyrene degrading gene products along with upregulated expression of proteins functioning in the glyoxylate and shikimate pathways, in the pyrene-induced cells. The study also revealed the pathway of pyrene degraded intermediates, via partial gluconeogenesis, into the pentose phosphate pathway to produce precursors for nucleotides and amino acids biosynthesis.
Division of Molecular and Life Sciences, Hanyang University (ERICA), Ansan, 426-791, Korea.
Abimbola Comfort
AC
Badejo
Chi-Won
CW
Choi
Adegoke Olugboyega
AO
Badejo
Kyung-Hoon
KH
Shin
Jung-Ho
JH
Hyun
Yeol-Gyun
YG
Lee
Seung-Il
SI
Kim
Kang-Sik
KS
Park
Sang Hoon
SH
Kim
Kyoung Hwa
KH
Jung
Young-Ho
YH
Chung
Young Gyu
YG
Chai
D000596:Amino Acids / Q000378:metabolism; D001426:Bacterial Proteins / Q000378:metabolism; D001673:Biodegradation, Environmental / Q000187:drug effects; D002244:Carbon / Q000378:metabolism; D008401:Gas Chromatography-Mass Spectrometry; D005943:Gluconeogenesis / Q000187:drug effects*; D005947:Glucose / Q000378:metabolism / Q000494:pharmacology*; D006038:Glyoxylates / Q000378:metabolism*; D053858:Metabolic Networks and Pathways / Q000187:drug effects; D009170:Nontuberculous Mycobacteria / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism*; D020543:Proteome / Q000378:metabolism*; D040901:Proteomics; D011721:Pyrenes / Q000494:pharmacology*; D012765:Shikimic Acid / Q000378:metabolism*
D000596:Amino Acids; D001426:Bacterial Proteins; D006038:Glyoxylates; D020543:Proteome; D011721:Pyrenes; D012765:Shikimic Acid; D002244:Carbon; C030984:pyrene; D005947:Glucose; C031150:glyoxylic acid