DNA excision repair protein ERCC-6 - Q03468 (ERCC6_HUMAN)


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Essential factor involved in transcription-coupled nucleotide excision repair which allows RNA polymerase II-blocking lesions to be rapidly removed from the transcribed strand of active genes (PubMed:20541997, PubMed:26620705). Upon DNA-binding, it locally modifies DNA conformation by wrapping the DNA around itself, thereby modifying the interface between stalled RNA polymerase II and DNA (PubMed:15548521). It is required for transcription-coupled repair complex formation (PubMed:16916636). It recruits the CSA complex (DCX(ERCC8) complex), nucleotide excision repair proteins and EP300 to the sites of RNA polymerase II-blocking lesions (PubMed:16916636). Plays an important role in regulating the choice of the DNA double-strand breaks (DSBs) repair pathway and G2/M checkpoint activation; DNA-dependent ATPase activity is essential for this function (PubMed:25820262). Regulates the DNA repair pathway choice by inhibiting non-homologous end joining (NHEJ), thereby promoting the homologous recombination (HR)-mediated repair of DSBs during the S/G2 phases of the cell cycle (PubMed:25820262). Mediates the activation of the ATM- and CHEK2-dependent DNA damage responses thus preventing premature entry of cells into mitosis following the induction of DNA DSBs (PubMed:25820262). Acts as a chromatin remodeler at DSBs; DNA-dependent ATPase-dependent activity is essential for this function. Remodels chromatin by evicting histones from chromatin flanking DSBs, limiting RIF1 accumulation at DSBs thereby promoting BRCA1-mediated HR (PubMed:29203878). Required for stable recruitment of ELOA and CUL5 to DNA damage sites (PubMed:28292928). Involved in UV-induced translocation of ERCC8 to the nuclear matrix (PubMed:26620705). Essential for neuronal differentiation and neuritogenesis; regulates transcription and chromatin remodeling activities required during neurogenesis (PubMed:24874740). UniProt
Pathway Maps
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Subunit Structure
Homodimer (PubMed:16128801, PubMed:15548521). Binds DNA (PubMed:15548521). Interacts with ERCC8 (PubMed:16751180). Interacts with RNA polymerase II; interaction is enhanced by UV irradiation (PubMed:26620705). Component of the B-WICH complex, at least composed of SMARCA5/SNF2H, BAZ1B/WSTF, SF3B1, DEK, MYO1C, ERCC6, MYBBP1A and DDX21 (PubMed:16603771). Interacts with KIAA1530/UVSSA (PubMed:22466612). Interacts with ELOA and CUL5; the interaction is induced by DNA damaging agents or by inhibitors of RNA polymerase II elongation (PubMed:28292928). Interacts (via WHD region) with RIF1 (PubMed:29203878). Interacts with SMARCC2/BAF170, SMARCB1/BAF47 and the neuron-specific chromatin remodeling complex (nBAF complex)(PubMed:24874740). Interacts with CAND1, CSTF1, DDX3X, DDX5, DDX17, DDX23, DHX36, HDAC1, HNRNPU, MTA2, PRPF3, PSMD3, RBBP4, SFPQ, SMARCA1, SMARCA2, TOP1, USP7, XRCC5, COPS3, COPS4, COPS6, DDX1, DDX41, GATAD2A, GATAD2B, PRPF4, PSMC5, SF3B2, CTR9, NONO, PSMD12 and TOP2A (PubMed:26030138). UniProt
The N-terminal domain exerts an inhibitory effect on the helicase ATP-binding domain in such a manner that its ATPase activity is restricted (PubMed:29203878). Phosphorylation at Ser-10 and Ser-158 promotes the intramolecular interaction of the N-terminal domain with the helicase ATP-binding domain, thereby probably releasing the inhibitory effect of the N-terminal domain on its ATPase activity (PubMed:29203878). UniProt
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