Reference: Unk I, et al. (2008)
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Abstract
Human helicase-like transcription factor (HLTF) is frequently inactivated in colorectal and gastric cancers. Here, we show that HLTF is a functional homologue of yeast Rad5 that promotes error-free replication through DNA lesions. HLTF and Rad5 share the same unique structural features, including a RING domain embedded within a SWI/SNF helicase domain and an HIRAN domain. We find that inactivation of HLTF renders human cells sensitive to UV and other DNA-damaging agents and that HLTF complements the UV sensitivity of a rad5Delta yeast strain. Also, similar to Rad5, HLTF physically interacts with the Rad6-Rad18 and Mms2-Ubc13 ubiquitin-conjugating enzyme complexes and promotes the Lys-63-linked polyubiquitination of proliferating cell nuclear antigen at its Lys-164 residue. A requirement of HLTF for error-free postreplication repair of damaged DNA is in keeping with its cancer-suppression role.
- Reference Type
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Journal Article |
Research Support, N.I.H., Extramural |
Research Support, Non-U.S. Gov't
- Authors
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Unk I,
Hajdú I,
Fátyol K,
Hurwitz J,
Yoon JH,
Prakash L,
Prakash S,
Haracska L
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- RAD5 | SWI/SNF chromatin remodelling complex
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Gene | Species | Gene ID | Strain background | Direction | Details | Source |
RAD5 | Homo sapiens | HGNC:11099 | S288C | other complements yeast | Complementation is partial. | SGD |