Total proteome analysis of engineered/adapted E.coli strains with glucose/xylose co-utilization ability

This project was about developing a bacterial strain that could consume a mixture of glucose and xylose simultaneously with higher ethanol productivity. In this study, an ethanologenic strain (SSK42) was made deficient in Carbon Catabolite Repression (CCR) by deleting the ptsG gene encoding EIIBCGlc component of PTS transport system. This strain (SCD00) was then evolved for several generations on xylose containing minimal media. A strain (SCD78) was finally obtained that, unlike its parent strain could consume glucose and xylose simultaneously. Then we performed proteomics analysis of evolved and un-evolved strain. The strain SSK42 was also considered for proteome analysis as a reference for analysis. The starting strain – SSK42, is the derivative of E.coli B.