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)
SPEN	2	0.970	-0.180				-0.126	-0.082
RBBP8	0	0.120	0.020
CTBP1	0	-0.410	0.390
CTBP1	0	-0.410	0.390	-0.293	-0.875	0.361	0.407	-0.049
CTBP1	0	-0.410	0.390	1.494	-0.398	0.504	0.897	-0.123
RBPJ	0	1.900	-0.160	-0.367	0.284	0.723	-0.090	0.134

Gene name	PTM type	PTM site	UV	UV (MG132)	Sequence
CTBP1	Ubiquitylation	K279	0.443		_GGLVDEK(gl)ALAQALK_
CTBP1	Ubiquitylation	K286	0.130	0.008	_ALAQALK(gl)EGR_
CTBP1	Phosphorylation	S492		-1.548	_YPPGIVGVAPGGLPAAM(ox)EGIIPGGIPVTHNLPTVAHPS(ph)QAPSPNQPTK_
RBBP8	Phosphorylation	S327	-0.154	0.038	_VSS(ph)PVFGATSSIK_
SPEN	Phosphorylation	S623	2.452	1.372	_RAS(ph)YDYNQDR_
SPEN	Phosphorylation	S727	0.569	0.583	_SQS(ph)PVHLR_
SPEN	Phosphorylation	S736	-1.190	-0.481	_RPQS(ph)PGAS(ph)PSQAER_
SPEN	Phosphorylation	S740		-0.446	_RPQS(ph)PGAS(ph)PSQAER_
SPEN	Phosphorylation	T1059	0.478	0.374	_LNT(ph)VASPKDCQELASISVGSGSRPSSDLQAR_
SPEN	Phosphorylation	S1062	0.195	0.089	_LNTVAS(ph)PKDCQELASISVGSGSRPSSDLQAR_
SPEN	Phosphorylation	T1140	0.280	-0.193	_NYCSLRDET(ph)PERK_
SPEN	Phosphorylation	S1194	0.847	0.567	_FGS(ph)PKKDVDEYER_
SPEN	Phosphorylation	S1222	-0.507	-0.636	_SLVHEVGKPPQDVTDDS(ph)PPSK_
SPEN	Phosphorylation	S1268	0.027	0.553	_HGS(ph)FHEDEDPIGSPR_
SPEN	Phosphorylation	S1278	-0.017	-0.642	_HGSFHEDEDPIGS(ph)PR_
SPEN	Phosphorylation	S1287	0.636	0.812	_LLSVKGS(ph)PK_
SPEN	Phosphorylation	T1619	-0.114	-0.035	_EVEKQEDTENHPKT(ph)PESAPENK_
SPEN	Ubiquitylation	K1661	0.811		_TTGDK(gl)TVEAPLVTEEK_
SPEN	Phosphorylation	S1797		0.049	_AEAAPES(ph)QPPASEDLEVDPPVAAK_
SPEN	Phosphorylation	T1826	0.121	-0.031	_SKT(ph)PVQAAAVSIVEKPVTR_
SPEN	Phosphorylation	S1918	-0.859	-0.612	_SVYATMGDHENRS(ph)PVKEPVEQPR_
SPEN	Phosphorylation	S2101	0.491	0.415	_NVDAAVS(ph)PR_
SPEN	Phosphorylation	S2114		-0.434	_ES(ph)GVVAVSPEKSES(ph)PQKEDGLSSQLK_
SPEN	Phosphorylation	S2120	0.189	0.279	_ESGVVAVS(ph)PEKS(ph)ESPQKEDGLSSQLK_
SPEN	Phosphorylation	S2124	0.055	0.177	_ESGVVAVS(ph)PEKS(ph)ESPQKEDGLSSQLK_
SPEN	Phosphorylation	S2126	0.762	0.625	_SES(ph)PQKEDGLSSQLK_
SPEN	Phosphorylation	S2156	-0.898		_SDPVDPDKEPEKEDVSAS(ph)GPSPEATQLAK_
SPEN	Phosphorylation	S2159	-1.078	-0.906	_SDPVDPDKEPEKEDVSASGPS(ph)PEATQLAK_
SPEN	Phosphorylation	S2359	-0.781		_KVVAPVESHVPES(ph)NQAQGESPAANEGTTVQHPEAPQEEK_
SPEN	Phosphorylation	S2366		-1.191	_KVVAPVESHVPESNQAQGES(ph)PAANEGTTVQHPEAPQEEK_
SPEN	Phosphorylation	S2411		2.394	_IPSTENS(ph)SQEISVEER_
SPEN	Phosphorylation	S2412		-0.493	_IPSTENSS(ph)QEISVEER_
SPEN	Phosphorylation	T2421	-0.518	-1.005	_IPSTENSSQEISVEERT(ph)PTK_
SPEN	Phosphorylation	T2460	-1.260		_VHSIIESDPVT(ph)PPSDPSIPIPTLPSVTAAK_
SPEN	Phosphorylation	S2493	-0.826	-0.552	_LSPPVASGGIPHQS(ph)PPTK_