enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Bacterial cell structure - Wikipedia

    en.wikipedia.org/wiki/Bacterial_cell_structure

    The bacterial cell wall differs from that of all other organisms by the presence of peptidoglycan which is located immediately outside of the cell membrane. Peptidoglycan is made up of a polysaccharide backbone consisting of alternating N-Acetylmuramic acid (NAM) and N-acetylglucosamine (NAG) residues in equal amounts.

  3. Penicillin-binding proteins - Wikipedia

    en.wikipedia.org/wiki/Penicillin-binding_proteins

    Bacterial cell wall synthesis is essential to growth, cell division (thus reproduction) and maintaining the cellular structure in bacteria. [2] Inhibition of PBPs leads to defects in cell wall structure and irregularities in cell shape, for example filamentation , pseudomulticellular forms, lesions leading to spheroplast formation, and eventual ...

  4. Glutamate racemase - Wikipedia

    en.wikipedia.org/wiki/Glutamate_racemase

    Glutamate racemase (MurI) provides multiple functions for bacterial cells. MurI is an enzyme which is primarily known for its role in synthesizing bacterial cell walls. While performing the function of cell wall synthesis, MurI also acts as a gyrase inhibitor, preventing gyrase from binding to DNA.

  5. Cell wall - Wikipedia

    en.wikipedia.org/wiki/Cell_wall

    A cell wall is a structural layer that surrounds some cell types, found immediately outside the cell membrane.It can be tough, flexible, and sometimes rigid. Primarily, it provides the cell with structural support, shape, protection, and functions as a selective barrier. [1]

  6. Peptidoglycan - Wikipedia

    en.wikipedia.org/wiki/Peptidoglycan

    Peptidoglycan. The peptidoglycan layer within the bacterial cell wall is a crystal lattice structure formed from linear chains of two alternating amino sugars, namely N-acetylglucosamine (GlcNAc or NAG) and N-acetylmuramic acid (MurNAc or NAM).

  7. Cell (biology) - Wikipedia

    en.wikipedia.org/wiki/Cell_(biology)

    Enclosing the cell is the cell envelope, generally consisting of a plasma membrane covered by a cell wall which, for some bacteria, may be further covered by a third layer called a capsule. Though most prokaryotes have both a cell membrane and a cell wall, there are exceptions such as Mycoplasma (bacteria) and Thermoplasma (archaea) which only ...

  8. Periplasm - Wikipedia

    en.wikipedia.org/wiki/Periplasm

    In particular, peptidoglycan synthesis is vital to cell wall production, and inhibitors of peptidoglycan synthesis have been of clinical interest for targeting bacteria for many decades. [ 24 ] [ 25 ] Furthermore, the periplasm is also relevant to clinical developments by way of its role in mediating the uptake of transforming DNA .

  9. β-Lactam antibiotic - Wikipedia

    en.wikipedia.org/wiki/Β-Lactam_antibiotic

    As a response to the use of β-lactams to control bacterial infections, some bacteria have evolved penicillin binding proteins with novel structures. β-Lactam antibiotics cannot bind as effectively to these altered PBPs, and, as a result, the β-lactams are less effective at disrupting cell wall synthesis.