Cockayne syndrome B protein regulates recruitment of the Elongin A ubiquitin ligase to sites of DNA damage.
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Cockayne syndrome B protein regulates recruitment of the Elongin A ubiquitin ligase to sites of DNA damage. / Weems, JC; Slaughter, BD; Unruh, JR; Boeing, S; Hall, SM; McLaird, MB; Yasukawa, T; Aso, T; Svejstrup, JQ; Conaway, JW; Conaway, RC.
I: The Journal of Biological Chemistry, Bind 292, Nr. 16, 2017, s. 6431-6437.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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T1 - Cockayne syndrome B protein regulates recruitment of the Elongin A ubiquitin ligase to sites of DNA damage.
AU - Weems, JC
AU - Slaughter, BD
AU - Unruh, JR
AU - Boeing, S
AU - Hall, SM
AU - McLaird, MB
AU - Yasukawa, T
AU - Aso, T
AU - Svejstrup, JQ
AU - Conaway, JW
AU - Conaway, RC
PY - 2017
Y1 - 2017
N2 - Elongin A performs dual functions as the transcriptionally active subunit of RNA polymerase II (Pol II) elongation factor Elongin and as the substrate recognition subunit of a Cullin-RING E3 ubiquitin ligase that ubiquitylates Pol II in response to DNA damage. Assembly of the Elongin A ubiquitin ligase and its recruitment to sites of DNA damage is a tightly regulated process induced by DNA-damaging agents and α-amanitin, a drug that induces Pol II stalling. In this study, we demonstrate (i) that Elongin A and the ubiquitin ligase subunit CUL5 associate in cells with the Cockayne syndrome B (CSB) protein and (ii) that this interaction is also induced by DNA-damaging agents and α-amanitin. In addition, we present evidence that the CSB protein promotes stable recruitment of the Elongin A ubiquitin ligase to sites of DNA damage. Our findings are consistent with the model that the Elongin A ubiquitin ligase and the CSB protein function together in a common pathway in response to Pol II stalling and DNA damage.
AB - Elongin A performs dual functions as the transcriptionally active subunit of RNA polymerase II (Pol II) elongation factor Elongin and as the substrate recognition subunit of a Cullin-RING E3 ubiquitin ligase that ubiquitylates Pol II in response to DNA damage. Assembly of the Elongin A ubiquitin ligase and its recruitment to sites of DNA damage is a tightly regulated process induced by DNA-damaging agents and α-amanitin, a drug that induces Pol II stalling. In this study, we demonstrate (i) that Elongin A and the ubiquitin ligase subunit CUL5 associate in cells with the Cockayne syndrome B (CSB) protein and (ii) that this interaction is also induced by DNA-damaging agents and α-amanitin. In addition, we present evidence that the CSB protein promotes stable recruitment of the Elongin A ubiquitin ligase to sites of DNA damage. Our findings are consistent with the model that the Elongin A ubiquitin ligase and the CSB protein function together in a common pathway in response to Pol II stalling and DNA damage.
U2 - 10.1074/jbc.C117.777946
DO - 10.1074/jbc.C117.777946
M3 - Journal article
C2 - 28292928
VL - 292
SP - 6431
EP - 6437
JO - Journal of Biological Chemistry
JF - Journal of Biological Chemistry
SN - 0021-9258
IS - 16
ER -
ID: 331083250