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| http://purl.uniprot.org/citations/15009209 | http://www.w3.org/2000/01/rdf-schema#comment | "NEDD8 is a ubiquitin-like protein that controls vital biological events through its conjugation to target proteins. Previously, we identified a negative regulator of the NEDD8 conjugation system, NEDD8 ultimate buster-1 (NUB1), that recruits NEDD8 and its conjugates to the proteasome for degradation. Recently, we performed yeast two-hybrid screening with NUB1 as bait and isolated a ubiquitin precursor UbC1 that is composed of nine tandem repeats of a ubiquitin unit through alpha-peptide bonds. Interestingly, NUB1 interacted with UbC1 through its UBA domain. Further study revealed that the UBA domain interacted with alpha-peptide bond-linked polyubiquitin, but not with isopeptide bond-linked polyubiquitin, indicating that the UBA domain of NUB1 is a specific acceptor for the linear ubiquitin precursor. A functional study revealed that an unidentified protein that was immunoprecipitated with NUB1 served as a ubiquitin C-terminal hydrolase for UbC1. Thus, NUB1 seems to form a protein complex with the unidentified ubiquitin C-terminal hydrolase and recruit UbC1 to this complex. This might allow the ubiquitin C-terminal hydrolase to hydrolyze UbC1, in order to generate ubiquitin monomers. Northern blot analysis showed that the mRNAs of both NUB1 and UbC1 were enriched in the testis. Furthermore, in situ hybridization showed that both mRNAs were strongly expressed in seminiferous tubules of the testis. These results may imply that the UbC1 hydrolysis mediated by NUB1 is involved in cellular functions in the seminiferous tubules such as spermatogenesis."xsd:string |
| http://purl.uniprot.org/citations/15009209 | http://purl.org/dc/terms/identifier | "doi:10.1111/j.1432-1033.2004.03999.x"xsd:string |
| http://purl.uniprot.org/citations/15009209 | http://purl.uniprot.org/core/author | "Tanaka T."xsd:string |
| http://purl.uniprot.org/citations/15009209 | http://purl.uniprot.org/core/author | "Kamitani T."xsd:string |
| http://purl.uniprot.org/citations/15009209 | http://purl.uniprot.org/core/author | "Yeh E.T."xsd:string |
| http://purl.uniprot.org/citations/15009209 | http://purl.uniprot.org/core/date | "2004"xsd:gYear |
| http://purl.uniprot.org/citations/15009209 | http://purl.uniprot.org/core/name | "Eur J Biochem"xsd:string |
| http://purl.uniprot.org/citations/15009209 | http://purl.uniprot.org/core/pages | "972-982"xsd:string |
| http://purl.uniprot.org/citations/15009209 | http://purl.uniprot.org/core/title | "NUB1-mediated targeting of the ubiquitin precursor UbC1 for its C-terminal hydrolysis."xsd:string |
| http://purl.uniprot.org/citations/15009209 | http://purl.uniprot.org/core/volume | "271"xsd:string |
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