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Rasmus Hammar edited this page Apr 10, 2026 · 23 revisions

Genome analysis ‐ 1MB462

RNA-seq and Tn-seq reveal fitness determinants of vancomycin-resistant Enterococcus faecium during growth in human serum

Species is a vancomycin resistant strain of Enterococcus faecium (E. faecium)

https://www.ebi.ac.uk/ena/browser/view/prjeb19025

Goal

Identify genes in E. faecium relevant for the adaptation to growing in human serum.

Genes of interest found in E. faecium according to the paper.

Gene Description
manZ_3 Mannose PTS permease subunit (sugar transport)
manY_2 Mannose PTS permease subunit (sugar transport)
ptsL Phosphotransferase system (PTS) component (sugar uptake)
algB Response regulator / transcriptional regulator
guaB IMP dehydrogenase (purine biosynthesis)
purA Adenylosuccinate synthase (purine biosynthesis)
pyrF Orotidine 5'-phosphate decarboxylase (pyrimidine biosynthesis)
pyrK_2 Dihydroorotate dehydrogenase-related subunit (pyrimidine biosynthesis)
purD Phosphoribosylamine–glycine ligase (purine biosynthesis)
purH AICAR transformylase/IMP cyclohydrolase (purine biosynthesis)
purL Phosphoribosylformylglycinamidine synthase (purine biosynthesis)
purQ Phosphoribosylformylglycinamidine synthase subunit (purine biosynthesis)
purC SAICAR synthase (purine biosynthesis)
clsA_1 Cardiolipin synthase (membrane lipid biosynthesis)
ddcP D-alanyl-D-alanine carboxypeptidase / cell wall remodeling
ldt_fmp L,D-transpeptidase (peptidoglycan cross-linking)
mgs Methylglyoxal synthase (glycolytic side-path)
lytA_2 Autolysin (peptidoglycan hydrolase)

Results

Methods

Genome assembly

Uses PacBio long reads assembled with Canu.

RNA-seq

RNA-seq from two culture conditions, BHI and human serum.

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