Phage Spanins: Diversity, Topological Dynamics and Gene Convergence [PDF]
Background Spanins are phage lysis proteins required to disrupt the outer membrane. Phages employ either two-component spanins or unimolecular spanins in this final step of Gram-negative host lysis.
Manoj Rajaure, Ry Young, Jesse L Cahill
exaly +6 more sources
Genetic Analysis of the Lambda Spanins Rz and Rz1: Identification of Functional Domains
Coliphage lambda proteins Rz and Rz1 are the inner membrane and outer membrane subunits of the spanin complex—a heterotetramer that bridges the periplasm and is essential for the disruption of the outer membrane during phage lysis.
Manoj Rajaure, Ry Young, Jesse L Cahill
exaly +6 more sources
Harnessing a T1 Phage-Derived Spanin for Developing Phage-Based Antimicrobial Development
The global increase in the prevalence of drug-resistant bacteria has necessitated the development of alternative treatments that do not rely on conventional antimicrobial agents.
Aa Haeruman Azam +2 more
exaly +5 more sources
Spanin Function Requires Subunit Homodimerization Through Intermolecular Disulfide Bonds [PDF]
SummaryThe λ Rz and Rz1 proteins are the subunits of the spanin complex, required for the disruption of the outer membrane during host lysis. Rz, the inner membrane or i‐spanin, has a largely alpha‐helical periplasmic domain, whereas Rz1, the outer membrane or o‐spanin, has a 25% proline content with no predicted secondary structure.
Manoj Rajaure, Ry Young
exaly +4 more sources
The Spanin Complex Is Essential for Lambda Lysis. [PDF]
ABSTRACT Phage lysis is a ubiquitous biological process, the most frequent cytocidal event in the biosphere. Lysis of Gram-negative hosts has been shown to require holins and endolysins, which attack the cytoplasmic membrane and peptidoglycan, respectively. Recently, a third class of lysis proteins, the spanins, was identified.
Ting Pang, Manoj Rajaure, Ry Young
exaly +5 more sources
Localization and Regulation of the T1 Unimolecular Spanin. [PDF]
Spanins have been proposed to fuse the cytoplasmic and outer membranes during phage lysis. Recent work with the lambda spanins Rz-Rz1, which are similar to class I viral fusion proteins, has shed light on the functional domains and requirements for two-component spanin function.
Ry Young, Rohit Kongari
exaly +3 more sources
The Lambda Spanin Components Rz and Rz1 Undergo Tertiary and Quaternary Rearrangements Upon Complex Formation [PDF]
AbstractPhage holins and endolysins have long been known to play key roles in lysis of the host cell, disrupting the cytoplasmic membrane and peptidoglycan (PG) layer, respectively. For phages of Gram‐negative hosts, a third class of proteins, the spanins, are involved in disrupting the outer membrane (OM).
Ry Young, Andreas Holzenburg
exaly +3 more sources
Structural Insights Into Membrane Fusion Mediated by Convergent Small Fusogens
From lifeless viral particles to complex multicellular organisms, membrane fusion is inarguably the important fundamental biological phenomena. Sitting at the heart of membrane fusion are protein mediators known as fusogens.
Yiming Yang, Nandini Nagarajan Margam
exaly +3 more sources
Enzymes and Mechanisms Employed by Tailed Bacteriophages to Breach the Bacterial Cell Barriers
Monoderm bacteria possess a cell envelope made of a cytoplasmic membrane and a cell wall, whereas diderm bacteria have and extra lipid layer, the outer membrane, covering the cell wall.
Carlos São-José, Sofia Fernandes
exaly +3 more sources
The Lysis Cassette of Jumbophage PhiKZ
Pseudomonas jumbophage phiKZ is prominent because of the proteinaceous nuclear structure that is formed during the infection cycle, protecting the replicating phage DNA from host nucleases.
Ry Young +2 more
exaly +2 more sources

