Related Experiment Video

Updated: Sep 4, 2026

Engineering Adherent Bacteria by Creating a Single Synthetic Curli Operon
15:28

Engineering Adherent Bacteria by Creating a Single Synthetic Curli Operon

Published on: November 16, 2012

INDUCIBLE TRANSPORT SYSTEM FOR CITRULLINE IN STREPTOCOCCUS FAECALIS

W R BIBB, W R STRAUGHN

    Journal of Bacteriology
    |April 1, 1964
    PubMed

    Keywords:
    AMINO ACIDSARGININEBACTERIOLOGICAL TECHNICSCITRULLINECULTURE MEDIAEXPERIMENTAL LAB STUDYMANOMETRYNITROGENPERMEABILITYSPECTROPHOTOMETRYSTREPTOCOCCUS FAECALISULTRASONICS

    More Related Videos

    Characterizing Multidrug Efflux Systems in Acinetobacter baumannii Using an Efflux-Deficient Bacterial Strain and a Single-Copy Gene Expression System05:06

    Characterizing Multidrug Efflux Systems in Acinetobacter baumannii Using an Efflux-Deficient Bacterial Strain and a Single-Copy Gene Expression System

    Published on: January 5, 2024

    An Assay for Measuring the Activity of Escherichia coli Inducible Lysine Decarboxyase08:08

    An Assay for Measuring the Activity of Escherichia coli Inducible Lysine Decarboxyase

    Published on: December 19, 2010

    Related Concept Videos

    Carrier-Mediated Transport01:06

    Carrier-Mediated Transport

    Carrier-mediated transport is a pivotal process in drug absorption, particularly for lipid-insoluble drugs, and encompasses facilitated diffusion and active transport. Facilitated diffusion allows drugs to move along their concentration gradient without energy expenditure, while active transport utilizes ATP to drive drug movement against this gradient.
    Active transport involves two types of membrane-spanning transporters: uptake and efflux. Uptake transporters are expressed in the small...
    ABC Transporters: Importer01:27

    ABC Transporters: Importer

    ATP-binding cassette or ABC transporters are a class of ATP-driven pumps that hydrolyze ATP to move solutes across the membrane. They can be grouped into importers and exporters. While exporters are present in all domains of life, importers exist only in bacteria and some plants.
    In bacteria, based on the number of transmembrane helices and the chemical nature of their substrates, the ABC importers can be divided into three types:
    Bacterial Translocation and Protein Secretion01:26

    Bacterial Translocation and Protein Secretion

    Bacterial protein secretion involves translocation systems to ensure proteins reach their designated locations, including the plasma membrane, periplasm, outer membrane, or the external environment. These translocation systems are vital for bacterial physiology, supporting processes like membrane assembly, enzymatic activity in the periplasm, and interactions with the external environment. The division of labor between Sec and Tat pathways ensures efficiency in handling proteins with diverse...
    Gram-negative Bacterial Protein Secretion Systems01:17

    Gram-negative Bacterial Protein Secretion Systems

    Gram-negative bacteria utilize sophisticated protein secretion systems to transport proteins across their double-membrane envelope into the extracellular environment or host cells. Based on their mechanism of action, these systems are classified into one-step and two-step pathways.One-Step Secretion Systems (Types I, III, IV, and VI)One-step secretion systems bypass the periplasm entirely, forming a continuous channel that spans both the inner and outer membranes:Type I Secretion System (T1SS):...
    Inducible Operons: lac Operon01:25

    Inducible Operons: lac Operon

    The lac operon in Escherichia coli is a model for understanding inducible gene regulation and metabolic flexibility. It integrates local control by lactose and global regulation through catabolite repression, enabling E. coli to preferentially metabolize glucose when available and switch to lactose utilization when glucose is scarce.Structure and Function of the lac OperonThe lac operon contains three structural genes: lacZ (β-galactosidase), lacY (lactose permease), and lacA (thiogalactoside...
    Inorganic Nitrogen Assimilation01:22

    Inorganic Nitrogen Assimilation

    Nitrogen is an essential element in biological systems, forming a crucial component of proteins, nucleic acids, and other cellular constituents. Many bacteria and archaea acquire nitrogen in the form of nitrate (NO₃⁻) or ammonia (NH₃), which are then assimilated into biomolecules through specific enzymatic pathways.Assimilatory Nitrate ReductionWhen nitrate enters the cell, it undergoes a two-step reduction process known as assimilatory nitrate reduction. Initially, the enzyme nitrate reductase...