cell wall
Genetics and Molecular Biologyd-Methionine and d-Phenylalanine Improve Lactococcus lactis F44 Acid Resistance and Nisin Yield by Governing Cell Wall RemodelingAs d-amino acids play an important role in cell wall synthesis, we analyzed the effects of 19 different d-amino acids on L. lactis F44, demonstrating that d-Met and d-Phe can participate in peptidoglycan (PG) synthesis and improve the acid resistance and nisin yield of this...
BiotechnologyRole of BGS13 in the Secretory Mechanism of Pichia pastorisThe yeast Pichia pastoris is used as a host system for the expression of recombinant proteins. Many of these products, including antibodies, vaccine antigens, and therapeutic proteins such as insulin, are currently on the market or in late stages of development. However, one major weakness is that sometimes these proteins are not secreted from the yeast cell...
Food MicrobiologyCell Wall Glycans Mediate Recognition of the Dairy Bacterium Streptococcus thermophilus by BacteriophagesStreptococcus thermophilus is widely used in starter cultures for cheese and yoghurt production. During dairy fermentations, infections of bacteria with bacteriophages result in acidification failures and a lower quality of the final products. An understanding of the molecular factors involved in phage-host interactions, in particular, the phage receptors in dairy...
Enzymology and Protein EngineeringBoosting Secretion of Extracellular Protein by Escherichia coli via Cell Wall PerturbationCell surface structure stabilization is important for extracellular secretion of proteins in Escherichia coli. As the main constituent of the cell wall, peptidoglycan contributes to cell structure robustness and stability. Here, we perturbed the peptidoglycan network by deleting dacA and dacB genes encoding d,...