PetriKey

Antimicrobial

Lipoglycopeptides

Lipid-tailed glycopeptides for Gram-positives

LY-poh-gly-koh-PEP-tydz

Gram positiveantibacterialcell-wallgram-positiveglycopeptidemembrane

High-yield clue

A vancomycin-like core binds D-Ala-D-Ala; the lipid tail anchors the drug in the membrane, and telavancin and oritavancin add membrane depolarization while dalbavancin acts essentially like vancomycin.

Overview

An antibacterial class (telavancin, dalbavancin, oritavancin) of glycopeptides carrying a lipophilic tail, used to teach cell-wall inhibition anchored by a membrane-binding tail in Gram-positives.

Classification

  • Antibacterial
  • Glycopeptide derivative
  • Lipophilic side chain
  • Gram-positive spectrum

Lab & identification clues

  • Binds terminal D-alanyl-D-alanine to block peptidoglycan cross-linking vocabulary
  • Membrane depolarization / permeability concept for telavancin and oritavancin
  • Long half-life vocabulary (dalbavancin, oritavancin)

Associations

  • Resistant Gram-positive study association (MRSA)
  • Cell-wall synthesis inhibition concept
  • Related to vancomycin lineage vocabulary

Commonly confused with

  • Vancomycin (glycopeptide)
  • Lipopeptides (daptomycin)

Your notes

Original mechanism summary for microbiology study. Sources checked: CDC antimicrobial-resistance guidance, NCBI Bookshelf Medical Microbiology, and standard coursework frameworks; reviewed 2026-06. Covers class, mechanism, and resistance vocabulary only; no prescribing, dosing, or patient-specific treatment guidance.

CDC: CDC antimicrobial resistance overview and threat reportssourceWHO: WHO bacterial priority pathogens list 2024sourceNCBI Bookshelf: Medical Microbiology antimicrobial mechanism foundationssource