Results 11 to 20 of about 353,107 (313)
To Be or Not to Be...Ubiquitinated? [PDF]
Levels of p21, a cyclin-dependent kinase (CDK) inhibitor, are controlled in part at the post-translational level by protein degradation. Although the signaling pathways leading to p21 degradation have not yet been fully elucidated, it is evident that p21 ubiquitination is an essential factor in its degradation.
Joanna, Bloom, Michele, Pagano
openaire +2 more sources
Cracking the Ubiquitin Code: The Ubiquitin Toolbox [PDF]
Ubiquitination, a post-translational modification, regulates a vast array of fundamental biological processes with dysregulation of the dedicated enzymes giving rise to pathologies such as cancer and neurodegenerative diseases. Assembly and its ensuing removal of this post-translational modification, determining a large variety of biological functions,
Mulder, M.P.C., Witting, K.F., Ovaa, H.
openaire +3 more sources
Phosphoribosylation of Ubiquitin Promotes Serine Ubiquitination and Impairs Conventional Ubiquitination [PDF]
Conventional ubiquitination involves the ATP-dependent formation of amide bonds between the ubiquitin C terminus and primary amines in substrate proteins. Recently, SdeA, an effector protein of pathogenic Legionella pneumophila, was shown to mediate NAD-dependent and ATP-independent ubiquitin transfer to host proteins.
Bhogaraju, S. +6 more
openaire +3 more sources
Using Ubiquitin Binders to Decipher the Ubiquitin Code [PDF]
Post-translational modifications (PTMs) by ubiquitin (Ub) are versatile, highly dynamic, and involved in nearly all aspects of eukaryote biological function. The reversibility and heterogeneity of Ub chains attached to protein substrates have complicated their isolation, quantification, and characterization.
Mattern M +4 more
openaire +2 more sources
Dss1 Is a 26S Proteasome Ubiquitin Receptor [PDF]
The ubiquitin-proteasome system is the major pathway for protein degradation in eukaryotic cells. Proteins to be degraded are conjugated to ubiquitin chains that act as recognition signals for the 26S proteasome.
Hardwick, Kevin G. +20 more
core +1 more source
Generation and physiological roles of linear ubiquitin chains [PDF]
Ubiquitination now ranks with phosphorylation as one of the best-studied post-translational modifications of proteins with broad regulatory roles across all of biology.
Iwai Kazuhiro +11 more
core +1 more source
The Ubiquitination Machinery of the Ubiquitin System [PDF]
The protein ubiquitin is a covalent modifier of proteins, including itself. The ubiquitin system encompasses the enzymes required for catalysing attachment of ubiquitin to substrates as well as proteins that bind to ubiquitinated proteins leading them to their final fate.
openaire +4 more sources
Ubiquitin in Motion: Structural Studies of the Ubiquitin-Conjugating Enzyme∼Ubiquitin Conjugate [PDF]
Ubiquitination of proteins provides a powerful and versatile post-translational signal in the eukaryotic cell. The formation of a thioester bond between ubiquitin (Ub) and the active site of a ubiquitin-conjugating enzyme (E2) is critical for the transfer of Ub to substrates. Assembly of a functional ubiquitin ligase (E3) complex poised for Ub transfer
Jonathan N, Pruneda +4 more
openaire +2 more sources
BRCA1 is a histone-H2A-specific ubiquitin ligase [PDF]
The RING domain proteins BRCA1 and BARD1 comprise a heterodimeric ubiquitin (E3) ligase that is required for the accumulation of ubiquitin conjugates at sites of DNA damage and for silencing at DNA satellite repeat regions. Despite its links to chromatin,
Donna L. Mallery +15 more
core +1 more source
Distinct ubiquitin binding modes exhibited by SH3 domains: Molecular determinants and functional implications [PDF]
SH3 domains constitute a new type of ubiquitin-binding domains. We previously showed that the third SH3 domain (SH3-C) of CD2AP binds ubiquitin in an alternative orientation.
Jerónimo Bravo (22727) +44 more
core +1 more source

