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Type IV pilin proteins: versatile molecular modules.

Carmen L Giltner1, Ylan Nguyen, Lori L Burrows

  • 1The Department of Biochemistry and Biomedical Sciences and the Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada.

Microbiology and Molecular Biology Reviews : MMBR
|December 4, 2012
PubMed
Summary
This summary is machine-generated.

Type IV pili (T4P) are versatile protein structures found in many microbes. These adaptable protein fibers play roles in motility, DNA uptake, and secretion across diverse species.

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Reconstitution of Actin-Based Motility with Commercially Available Proteins
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Reconstitution of Actin-Based Motility with Commercially Available Proteins

Published on: October 28, 2022

Area of Science:

  • Microbiology
  • Molecular Biology
  • Structural Biology

Background:

  • Type IV pili (T4P) are widespread protein fibers in bacteria and archaea.
  • Type IV pilins are structurally related to pseudopilins in type II secretion systems, DNA uptake systems, and archaeal appendages.
  • This protein family's broad distribution suggests a common origin and functional adaptability.

Purpose of the Study:

  • To review recent advances in Type IV pilin research.
  • To explore the structural diversity and functional roles of T4P.
  • To highlight new insights into T4P posttranslational modifications, regulation, and function.

Main Methods:

  • Literature review of recent studies on Type IV pili.
  • Analysis of structural data for type IV pilins and related proteins.
  • Synthesis of information on T4P diversity, modifications, regulation, and function.

Main Results:

  • Type IV pilin is a versatile module enabling diverse functions like motility and DNA acquisition.
  • T4P are involved in attachment to various surfaces and electrical conductance.
  • Pseudopilins, related to type IV pilins, are key components of secretion and DNA uptake systems.

Conclusions:

  • The type IV pilin protein family exhibits remarkable functional adaptability.
  • Recent research has provided significant structural and functional insights into T4P.
  • Understanding T4P is crucial for comprehending microbial surface structures and functions.