Results 81 to 90 of about 978,977 (295)

Viral fusion proteins: multiple regions contribute to membrane fusion

open access: yesBiochimica et Biophysica Acta (BBA) - Biomembranes, 2003
In recent years, the simple picture of a viral fusion protein interacting with the cell and/or viral membranes by means of only two localized segments (i.e. the fusion peptide and the transmembrane domain) has given way to a more complex picture in which multiple regions from the viral proteins interact with membranes.
Peisajovich, Sergio G., Shai, Yechiel
openaire   +2 more sources

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Characterization of structural and immunological properties of a fusion protein between flagellin from Salmonella and lumazine synthase from Brucella [PDF]

open access: yes, 2017
Aiming to combine the flexibility of Brucella lumazine synthase (BLS) to adapt different protein domains in a decameric structure and the capacity of BLS and flagellin to enhance the immunogenicity of peptides that are linked to their structure, we ...
Berguer, Paula Mercedes   +11 more
core   +3 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

Multimodal Protein Constructs for Herbivore Insect Control

open access: yesToxins, 2012
Transgenic plants expressing combinations of microbial or plant pesticidal proteins represent a promising tool for the efficient, durable control of herbivorous insects.
Frank Sainsbury   +3 more
doaj   +1 more source

Class II Fusion Proteins [PDF]

open access: yes, 2013
Enveloped viruses rely on fusion proteins in their envelope to fuse the viral membrane to the host-cell membrane. This key step in viral entry delivers the viral genome into the cytoplasm for replication. Although class II fusion proteins are genetically and structurally unrelated to class I fusion proteins, they use the same physical principles and ...
openaire   +2 more sources

Development of a novel fusion system for soluble protein overexpression and purification in Escherichia coli [PDF]

open access: yes, 2010
Recombinant protein production is a useful technology for therapeutic and diagnostic applications. The bacterium Escherichia coli is widely used for the bioproduction of proteins, but still presents some drawbacks.
Castro, António   +2 more
core  

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

Infant acute leukemia with lineage switch at relapse expressing a novel t(4;11)(q21;q23) MLL-AF4 fusion transcript

open access: yesRomanian Journal of Laboratory Medicine, 2013
Introducere. Pacienţii cu leucemie acuta limfoblastică (LAL) neonatală prezintă în mod frecvent, o tran- slocaţie particulară, t(4;ll)(q21;q23), care duce la fuziunea genei MLL (mixed lineage leukemia) de pe cromo- zomul 11 cu gena AF4 de pe cromozomul 4.
Ivanov Iuliu C.   +7 more
doaj   +1 more source

Broad activation of the ubiquitin-proteasome system by Parkin is critical for mitophagy [PDF]

open access: yes, 2011
Parkin, an E3 ubiquitin ligase implicated in Parkinson's disease, promotes degradation of dysfunctional mitochondria by autophagy. Using proteomic and cellular approaches, we show that upon translocation to mitochondria, Parkin activates the ubiquitin ...
Anh H. Pham   +49 more
core   +3 more sources

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