Results 31 to 40 of about 105,668 (286)

SUMO chain-induced dimerization activates RNF4 [PDF]

open access: yes, 2014
Dimeric RING E3 ligases interact with protein substrates and conformationally restrain the ubiquitin-E2-conjugating enzyme thioester complex such that it is primed for catalysis.
Hay, Ronald T   +5 more
core   +1 more source

Progress on Poxvirus E3 Ubiquitin Ligases and Adaptor Proteins

open access: yesFrontiers in Immunology, 2021
Poxviruses have evolved a variety of innate immunity evasion mechanisms, some of which involve poxvirus-encoded E3 ubiquitin ligases and adaptor proteins.
Haoran Cui   +7 more
doaj   +1 more source

Structure of the Human FANCL RING-Ube2T Complex Reveals Determinants of Cognate E3-E2 Selection [PDF]

open access: yes, 2014
The combination of an E2 ubiquitin-conjugating enzyme with an E3 ubiquitin-ligase is essential for ubiquitin modification of a substrate. Moreover, the pairing dictates both the substrate choice and the modification type. The molecular details of generic
Miles, Jennifer Anne   +3 more
core   +1 more source

E3-ligase knock down revealed differential titin degradation by autopagy and the ubiquitin proteasome system

open access: yesScientific Reports, 2021
The sarcomere protein titin is a major determinant of cardiomyocyte stiffness and ventricular distensibility. The constant mechanical stress on titin requires well-controlled protein quality control, the exact mechanisms of which have not yet been fully ...
Erik Müller   +5 more
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

IAPs as E3 ligases of Rac1 [PDF]

open access: yesSmall GTPases, 2012
Inhibitors of Apoptosis Proteins (IAPs) are well-studied E3 ubiquitin ligases predominantly known for regulation of apoptosis. We uncovered that IAPs can function as a direct E3 ubiquitin ligase of RhoGTPase Rac1. cIAP1 and XIAP directly conjugate polyubiquitin chains to Lysine 147 of activated Rac1 and target it for proteasomal degradation ...
Oberoi-Khanuja, Tripat Kaur   +1 more
openaire   +3 more sources

The Role of E3 Ligase Pirh2 in Disease

open access: yesCells, 2022
The p53-dependent ubiquitin ligase Pirh2 regulates a number of proteins involved in different cancer-associated processes. Targeting the p53 family proteins, Chk2, p27Kip1, Twist1 and others, Pirh2 participates in such cellular processes as proliferation, cell cycle regulation, apoptosis and cellular migration.
Alexandra Daks   +5 more
openaire   +3 more sources

Cereblon versus VHL: Hijacking E3 Ligases Against Each Other Using PROTACs [PDF]

open access: yes, 2019
The von Hippel-Lindau (VHL) and cereblon (CRBN) proteins are substrate recognition subunits of two ubiquitously expressed and biologically important Cullin RING E3 ubiquitin ligase complexes.
Chiara, Maniaci   +4 more
core   +1 more source

New classes of E3 ligases illuminated by chemical probes [PDF]

open access: yes, 2022
Specificity in the ubiquitin system depends on E3 ligases, largely belonging to a handful of families discovered more than a decade ago. However, the last two years brought a quantum leap in the identification and/or mechanistic characterization of ...
Horn-Ghetko, D., Schulman, B.
core   +1 more source

RING Domain E3 Ubiquitin Ligases

open access: yesAnnual Review of Biochemistry, 2009
E3 ligases confer specificity to ubiquitination by recognizing target substrates and mediating transfer of ubiquitin from an E2 ubiquitin-conjugating enzyme to substrate. The activity of most E3s is specified by a RING domain, which binds to an E2∼ubiquitin thioester and activates discharge of its ubiquitin cargo.
Deshaies, Raymond J.   +1 more
openaire   +3 more sources

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