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Different from canonical ubiquitin-like proteins, Hub1 does not form covalent conjugates with substrates but binds proteins non-covalently. In Saccharomyces cerevisiae, Hub1 associates with spliceosomes and mediates alternative splicing of SRC1, without affecting pre-mRNA splicing generally. Human H...
ORGANISM(S): Homo sapiens 
Posttranslational modifications by ubiquitin-like proteins (UBL) are essential for nearly all cellular processes. Ubiquitin related modifier 1 (Urm1) is a non-canonical UBL which plays a key role in tRNA anticodon thiolation as a sulfur carrier protein (SCP). While Urm1 has also been observed to con...
ORGANISM(S): Chaetomium Thermophilum (ncbitaxon:209285) Saccharomyces Cerevisiae (ncbitaxon:4932) Homo Sapiens (ncbitaxon:9606) 
2021-11-16 | MSV000088390 | MassIVE
Bacteria conjugate ubiquitin-like proteins to interfere with phage assembly
Ubiquitin and ubiquitin-like proteins (UBLs) are directed to targets by cascades of E1, E2, and E3 enzymes. The largest ubiquitin E3 subclass consists of cullin-RING ligases (CRLs), which contain one each of several cullins (CUL1, -2, -3, -4, or -5) and RING proteins (RBX1 or -2). CRLs are activated...
ORGANISM(S): Mus musculus 
The ubiquitin system regulates eukaryotic physiology by modifying specific substrate proteins. Substrate recognition and the assembly of ubiquitin signals are determined by ubiquitin ligases, some of which also modify non-protein biomolecules. Here we expand this substrate realm, revealing that the ...
ORGANISM(S): Homo sapiens (Human) 
2025-09-10 | PXD067088 | Pride
The nucleophilic thiol-alkyne addition reaction can form a covalent thiovinyl bond with cysteine reactivity specific,as the classical standards for cysteine-reactive warheads in activity-based probes (ABPs).Utilizing this classical reactivity property, we designed two potentially reactive unnatural...
ORGANISM(S): Homo Sapiens 
2025-05-14 | PXD063756 |
UBL5 is an atypical ubiquitin-like protein, whose function in metazoans remains largely unexplored. We show that UBL5 is required for sister chromatid cohesion maintenance in human cells. UBL5 primarily associates with spliceosomal proteins, and UBL5 depletion decreases pre-mRNA splicing efficiency,...
ORGANISM(S): Homo sapiens 
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