نتایج جستجو برای: ubd
تعداد نتایج: 191 فیلتر نتایج به سال:
Understanding protein higher order structure and interfacial interactions is crucial to understanding protein binding motifs and cellular function, that is, an interactome. Polyubiquitylation is a post-translational modification that functions as a tag for a diverse array of cellular processes, wherein differences in chain length, branching, and linkage site encode different cellular functions....
TAB2 and TAB3 activate the Jun N-terminal kinase and nuclear factor-kappaB pathways through the specific recognition of Lys 63-linked polyubiquitin chains by its Npl4 zinc-finger (NZF) domain. Here we report crystal structures of the TAB2 and TAB3 NZF domains in complex with Lys 63-linked diubiquitin at 1.18 and 1.40 A resolutions, respectively. Both NZF domains bind to the distal ubiquitin thr...
During misfolded-protein stress, the cytoplasmic protein histone deacetylase 6 (HDAC6) functions as a linker between the dynein motor and polyubiquitin to mediate the transport of polyubiquitylated cargo to the aggresome. Here, we identify a new binding partner of HDAC6, the ubiquitin-like modifier FAT10 (also known as UBD), which is cytokine-inducible and - similar to ubiquitin - serves as a s...
Polyubiquitination is a posttranslational modification where ubiquitin chains containing isopeptide bonds linking one of seven ubiquitin lysines with the C terminus of an adjoining ubiquitin are covalently attached to proteins. While functions of K48- and K63-linked polyubiquitin are understood, the role(s) of noncanonical K11-linked chains is less clear. A crystal structure of K11-linked diubi...
Polyubiquitin chains regulate diverse cellular processes through the ability of ubiquitin to form chains of eight different linkage types. Although detected in yeast and mammals, little is known about K29-linked polyubiquitin. Here we report the generation of K29 chains in vitro using a ubiquitin chain-editing complex consisting of the HECT E3 ligase UBE3C and the deubiquitinase vOTU. We determ...
Proteins selected for degradation are labeled with multiple molecules of ubiquitin and are subsequently cleaved by the 26 S proteasome. A family of proteins containing at least one ubiquitin-associated (UBA) domain and one ubiquitin-like (UBL) domain have been shown to act as soluble ubiquitin receptors of the 26 S proteasome and introduce a new level of specificity into the degradation system....
The attachment of lysine 48 (Lys(48))-linked polyubiquitin chains to proteins is a universal signal for degradation by the proteasome. Here, we report that long Lys(48)-linked chains are resistant to many deubiquitinating enzymes (DUBs). Representative enzymes from this group, Ubp15 from yeast and its human ortholog USP7, rapidly remove mono- and diubiquitin from substrates but are slow to remo...
The interaction between ubiquitinated proteins and intracellular proteins harboring ubiquitin binding domains (UBDs) is critical to a multitude of cellular processes. Here, we report that Rabex-5, a guanine nucleotide exchange factor for Rab5, binds to Ub through two independent UBDs. These UBDs determine a number of properties of Rabex-5, including its coupled monoubiquitination and interactio...
Decision support systems (DSS) have been used in many applications to speed up decision making. This article will discuss the implementation of DSS for decision-making for scholarships "bidik misi". In terms of processing data related to the bidik misi scholarship are accordance with the regulations set by UBD. To facilitate the selection process of bidik misi scholarship then the authors used ...
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