RNAi screen result	RNAPII IP (MG132)	CSB IP	CSB IP (MG132)	Chrom.	Chrom. (MG132)	Ubi /Phospo	Ubi /Phospho (MG132)
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Gene name	MGoogle Score	RNAi high	RNAi low	RNAPII-IP (MG132)	CSB-IP	CSB-IP (MG132)	Chrom.	Chrom. (MG132)
UPF1	0			-0.362	-0.954	-0.781	-0.966	-0.333
UPF3B	0	-0.820	0.890				-0.652	-0.447
UPF2	0	0.020	-0.140				-0.668	-0.131
NXF1	0			-0.262			0.366	0.002
RNPS1	0	-1.050	1.360	0.820	1.396	0.628	-0.117	0.102
RNPS1	0	-0.890	1.750	0.820	1.396	0.628	-0.117	0.102

Gene name	PTM type	PTM site	UV	UV (MG132)	Sequence
NXF1	Ubiquitylation	K173	0.298		_AQFFVEDASTASALK(gl)AVNYK_
NXF1	Ubiquitylation	K607	0.028		_SAQAFTHLK(gl)AK_
RNPS1	Ubiquitylation	K8	-0.465		_(ac)MDLSGVKK(gl)_
RNPS1	Phosphorylation	S251		0.028	_RFS(ph)PPRR_
UPF1	Ubiquitylation	K321		0.611	_LK(gl)ESQTQDNITVR_
UPF1	Ubiquitylation	K340	-1.693		_WDLGLNKK(gl)_
UPF1	Ubiquitylation	K378	-1.658		_YK(gl)GDLAPLWK_
UPF1	Ubiquitylation	K638	-2.024	-0.456	_LAK(gl)MQFR_
UPF1	Ubiquitylation	K790	0.647	0.880	_ITTK(gl)LLK_
UPF1	Ubiquitylation	K793	-2.075		_LLK(gl)AGAKPDQIGIITPYEGQR_
UPF1	Phosphorylation	S1107	0.100	0.763	_SQIDVALS(ph)QDSTYQGER_
UPF3B	Ubiquitylation	K196	0.208		_K(gl)TTPLLSFLK_