Mode of action of a lysostaphin-like bacteriolytic agent produced by Streptococcus zooepidemicus 4881

Article Abstract:

The killing action of zoocin A, a lysostaphin-like bacteriolytic agent, produced by Streptococcus zooepidemicus 4881, is attributed to its ability to cleave the peptidoglycan cross-links in the cell wall of sensitive streptococci. Zoocin A also cleaves hexaglycine, but fails to kill streptococci that have direct covalently bonded peptidoglycan cross-links. Electron microscopy shows that treatment of sensitive streptococci by zoocin A results in cytoplasmic disruption and complete rupture of the cell wall.

Observations, Antibacterial agents, Peptidoglycans

---

Cytoplasmic membrane lipoprotein LppC of Streptococcus equisimilis functions as an acid phosphatase

Article Abstract:

The ability of a streptococcal cytoplasmic membrane lipoprotein (llpC), identified with both Streptococcus equisimilis H46A and Escherichia coli JM109 strains, to function as an acid phosphatase is described. Zymographic technique resulted in the expression of lppC gene under its natural promoter in E. coli JM109(pLLP2) showing its phosphatase activity. Moreover, whole cells and membrane fractions from both S. equisimilis and E. coli displayed acid phosphatase activity after whole-cell assays.

Escherichia coli, Lipoproteins, Acid phosphatase

---

Similar abstracts:

• Abstracts: Biodegradation of a synthetic lubricant by Micrococcus roseus. Biodegradation of natural rubber and related compounds: Recent insights into a hardly understood catabolic capability of microorganisms
• Abstracts: Purification and characterization of the extracellular alpha-amylase from Streptococcus bovis JB1. Comparison of C18-carboxypropylbetaine and glass bead DNA extraction methods for detection of Mycobacterium bovis in bovine milk samples and analysis of samples by PCR
• Abstracts: Isolation of llama antibody fragments for prevention of dandruff by phage display in shampoo
• Abstracts: Planktonic-cell yield of a pseudomonad biofilm. Effects of heavy fuel oil on the bacterial community structure of a pristine microbial mat

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.