Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5755
pubmed:dateCreated
2005-12-16
pubmed:abstractText
Translesion synthesis (TLS) is the major pathway by which mammalian cells replicate across DNA lesions. Upon DNA damage, ubiquitination of proliferating cell nuclear antigen (PCNA) induces bypass of the lesion by directing the replication machinery into the TLS pathway. Yet, how this modification is recognized and interpreted in the cell remains unclear. Here we describe the identification of two ubiquitin (Ub)-binding domains (UBM and UBZ), which are evolutionarily conserved in all Y-family TLS polymerases (pols). These domains are required for binding of poleta and poliota to ubiquitin, their accumulation in replication factories, and their interaction with monoubiquitinated PCNA. Moreover, the UBZ domain of poleta is essential to efficiently restore a normal response to ultraviolet irradiation in xeroderma pigmentosum variant (XP-V) fibroblasts. Our results indicate that Ub-binding domains of Y-family polymerases play crucial regulatory roles in TLS.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1095-9203
pubmed:author
pubmed:issnType
Electronic
pubmed:day
16
pubmed:volume
310
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1821-4
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:16357261-Amino Acid Motifs, pubmed-meshheading:16357261-Amino Acid Sequence, pubmed-meshheading:16357261-Animals, pubmed-meshheading:16357261-Cell Line, pubmed-meshheading:16357261-Computational Biology, pubmed-meshheading:16357261-DNA, pubmed-meshheading:16357261-DNA Damage, pubmed-meshheading:16357261-DNA Repair, pubmed-meshheading:16357261-DNA Replication, pubmed-meshheading:16357261-DNA-Directed DNA Polymerase, pubmed-meshheading:16357261-Humans, pubmed-meshheading:16357261-Hydrophobic and Hydrophilic Interactions, pubmed-meshheading:16357261-Models, Molecular, pubmed-meshheading:16357261-Molecular Sequence Data, pubmed-meshheading:16357261-Mutation, pubmed-meshheading:16357261-Nuclear Magnetic Resonance, Biomolecular, pubmed-meshheading:16357261-Point Mutation, pubmed-meshheading:16357261-Proliferating Cell Nuclear Antigen, pubmed-meshheading:16357261-Protein Binding, pubmed-meshheading:16357261-Protein Conformation, pubmed-meshheading:16357261-Protein Interaction Mapping, pubmed-meshheading:16357261-Protein Structure, Tertiary, pubmed-meshheading:16357261-Recombinant Fusion Proteins, pubmed-meshheading:16357261-Transfection, pubmed-meshheading:16357261-Ubiquitin, pubmed-meshheading:16357261-Xeroderma Pigmentosum, pubmed-meshheading:16357261-Zinc Fingers
pubmed:year
2005
pubmed:articleTitle
Ubiquitin-binding domains in Y-family polymerases regulate translesion synthesis.
pubmed:affiliation
Institute for Biochemistry II, Goethe University Medical School, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't