Results 31 to 40 of about 3,429,300 (308)

A capsid-encoded PPxY-motif facilitates adenovirus entry. [PDF]

open access: yes, 2010
Viruses use cellular machinery to enter and infect cells. In this study we address the cell entry mechanisms of nonenveloped adenoviruses (Ads). We show that protein VI, an internal capsid protein, is rapidly exposed after cell surface attachment and ...
Segura-Morales, Carolina   +28 more
core   +1 more source

Ubiquitination, Biotech Startups, and the Future of TRIM Family Proteins: A TRIM-Endous Opportunity

open access: yesCells, 2021
Ubiquitination is a post-translational modification that has pivotal roles in protein degradation and diversified cellular processes, and for more than two decades it has been a subject of interest in the biotech or biopharmaceutical industry. Tripartite
Utsa Bhaduri, Giuseppe Merla
doaj   +1 more source

Functional Diversity and Structural Disorder in the Human Ubiquitination Pathway [PDF]

open access: yes, 2013
The ubiquitin-proteasome system plays a central role in cellular regulation and protein quality control (PQC). The system is built as a pyramid of increasing complexity, with two E1 (ubiquitin activating), few dozen E2 (ubiquitin conjugating) and several
Mainak Guharoy   +15 more
core   +1 more source

Role of RING-Type E3 Ubiquitin Ligases in Inflammatory Signalling and Inflammatory Bowel Disease

open access: yesMediators of Inflammation, 2020
Ubiquitination is a three-step enzymatic cascade for posttranslational protein modification. It includes the ubiquitin-activating enzyme (E1), ubiquitin-conjugating enzyme (E2), and ubiquitin ligase (E3).
Liguo Zhu   +7 more
doaj   +1 more source

A viral ubiquitin ligase has substrate preferential SUMO targeted ubiquitin ligase activity that counteracts intrinsic antiviral defence [PDF]

open access: yes, 2011
Intrinsic antiviral resistance represents the first line of intracellular defence against virus infection. During herpes simplex virus type-1 (HSV-1) infection this response can lead to the repression of viral gene expression but is counteracted by the ...
Delphine Cuchet-Lourenço   +21 more
core   +1 more source

Cullin 3 ubiquitin ligases in cancer biology: functions and therapeutic implications

open access: yesFrontiers in Oncology, 2016
Cullin-RING ubiquitin ligases are the largest E3 ligase family in eukaryotes and are multi-protein complexes. In these complexes, the Cullin protein serves as a scaffold to connect two functional modules of the ligases, the catalytic subunit and ...
Hsin-Yi eChen   +2 more
doaj   +1 more source

Strategies to Target Specific Components of the Ubiquitin Conjugation/Deconjugation Machinery

open access: yesFrontiers in Chemistry, 2020
The regulation of ubiquitination status in the cell is controlled by ubiquitin ligases acting in tandem with deubiquitinating enzymes. Ubiquitination controls many key processes in the cell from division to death making its tight regulation key to ...
Neil C. Taylor, Joanna F. McGouran
doaj   +1 more source

Structure of the HHARI catalytic domain shows glimpses of a HECT E3 ligase. [PDF]

open access: yesPLoS ONE, 2013
The ubiquitin-signaling pathway utilizes E1 activating, E2 conjugating, and E3 ligase enzymes to sequentially transfer the small modifier protein ubiquitin to a substrate protein.
Donald E Spratt   +2 more
doaj   +1 more source

E3-ubiquitin ligases and recent progress in osteoimmunology

open access: yesFrontiers in Immunology, 2023
Ubiquitin-mediated proteasomal degradation is a post-transcriptional protein modification that is comprised of various components including the 76-amino acid protein ubiquitin (Ub), Ub-activating enzyme (E1), Ub-conjugating enzyme (E2), ubiquitin ligase (
Yosuke Asano   +8 more
doaj   +1 more source

A Key Role for the Ubiquitin Ligase UBR4 in Myofiber Hypertrophy in Drosophila and Mice

open access: yesCell Reports, 2019
Summary: Skeletal muscle cell (myofiber) atrophy is a detrimental component of aging and cancer that primarily results from muscle protein degradation via the proteasome and ubiquitin ligases.
Liam C. Hunt   +11 more
doaj   +1 more source

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