Results 21 to 30 of about 220,849 (250)

New Biophysical Approaches Reveal the Dynamics and Mechanics of Type I Viral Fusion Machinery and Their Interplay with Membranes

open access: yesViruses, 2020
Protein-mediated membrane fusion is a highly regulated biological process essential for cellular and organismal functions and infection by enveloped viruses. During viral entry the membrane fusion reaction is catalyzed by specialized protein machinery on
Mark A. Benhaim, Kelly K. Lee
doaj   +1 more source

New insights into the role of endosomal proteins for African swine fever virus infection.

open access: yesPLoS Pathogens, 2022
African swine fever virus (ASFV) infectious cycle starts with the viral adsorption and entry into the host cell. Then, the virus is internalized via clathrin/dynamin mediated endocytosis and macropinocytosis.
Miguel Ángel Cuesta-Geijo   +11 more
doaj   +1 more source

A fusion-inhibiting peptide against Rift Valley fever virus inhibits multiple, diverse viruses. [PDF]

open access: yesPLoS Neglected Tropical Diseases, 2013
For enveloped viruses, fusion of the viral envelope with a cellular membrane is critical for a productive infection to occur. This fusion process is mediated by at least three classes of fusion proteins (Class I, II, and III) based on the protein ...
Jeffrey W Koehler   +11 more
doaj   +1 more source

A Frame-by-Frame Glance at Membrane Fusion Mechanisms: From Viral Infections to Fertilization

open access: yesBiomolecules, 2023
Viral entry and fertilization are distinct biological processes that share a common mechanism: membrane fusion. In viral entry, enveloped viruses attach to the host cell membrane, triggering a series of conformational changes in the viral fusion proteins.
Farshad C. Azimi   +5 more
doaj   +1 more source

Computational epitope mapping of class I fusion proteins using low complexity supervised learning methods.

open access: yesPLoS Computational Biology, 2022
Antibody epitope mapping of viral proteins plays a vital role in understanding immune system mechanisms of protection. In the case of class I viral fusion proteins, recent advances in cryo-electron microscopy and protein stabilization techniques have ...
Marion F S Fischer   +2 more
doaj   +1 more source

Structural characterization of viral fusion proteins [PDF]

open access: yesCurrent Biology, 1995
Infection by enveloped viruses is initiated by the fusion of viral and cellular membranes. In many cases, the viral membrane proteins that mediate fusion must undergo conformational changes to become active. Influenza hemagglutinin, for example, is activated by a dramatic conformational rearrangement, triggered by the low pH of the intracellular ...
openaire   +2 more sources

The Many Mechanisms of Viral Membrane Fusion Proteins [PDF]

open access: yes, 2004
Every enveloped virus fuses its membrane with a host cell membrane, thereby releasing its genome into the cytoplasm and initiating the viral replication cycle. In each case, one or a small set of viral surface transmembrane glycoproteins mediates fusion. Viral fusion proteins vary in their mode of activation and in structural class.
Earp, L. J.   +3 more
openaire   +2 more sources

Structural Transition and Antibody Binding of EBOV GP and ZIKV E Proteins from Pre-Fusion to Fusion-Initiation State

open access: yesBiomolecules, 2018
Membrane fusion proteins are responsible for viral entry into host cells—a crucial first step in viral infection. These proteins undergo large conformational changes from pre-fusion to fusion-initiation structures, and, despite differences in viral
Anna Lappala   +8 more
doaj   +1 more source

Inhibition of the Hantavirus Fusion Process by Predicted Domain III and Stem Peptides from Glycoprotein Gc. [PDF]

open access: yesPLoS Neglected Tropical Diseases, 2016
Hantaviruses can cause hantavirus pulmonary syndrome or hemorrhagic fever with renal syndrome in humans. To enter cells, hantaviruses fuse their envelope membrane with host cell membranes.
Gonzalo P Barriga   +9 more
doaj   +1 more source

Structure of the Core Postfusion Porcine Endogenous Retrovirus Fusion Protein

open access: yesmBio, 2022
Retroviral elements from endogenous retroviruses have functions in mammalian physiology. The best-known examples are the envelope proteins that function in placenta development and immune suppression.
Trevor T. Dean   +2 more
doaj   +1 more source

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