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
RBM15	2	-1.840	3.710	0.149	0.626	0.647	0.721	0.292

Gene name	PTM type	PTM site	UV	UV (MG132)	Sequence
RBM15	Phosphorylation	S109	0.735	0.709	_GGS(ph)REYDTGGGSSSSR_
RBM15	Phosphorylation	S127	2.364	0.831	_LHSYS(ph)SPSTK_
RBM15	Phosphorylation	S128	-0.113	-0.328	_LHSYSS(ph)PSTK_
RBM15	Phosphorylation	S294	0.496	0.464	_SLS(ph)PGGAALGYR_
RBM15	Phosphorylation	T568	0.217	0.371	_DRT(ph)PPLLYR_
RBM15	Phosphorylation	S656		0.197	_HLDRS(ph)PESDRPR_
RBM15	Phosphorylation	S670	0.323	0.021	_HCAPS(ph)PDRSPELSSSR_
RBM15	Phosphorylation	S700	-0.166	0.067	_LLLERPS(ph)PIRDR_
RBM15	Phosphorylation	S741	-0.059	0.023	_TTAPTEGKS(ph)PLKK_
RBM15	Phosphorylation	S765	-0.276	-0.017	_LKS(ph)PSQKQDGGTAPVASASPK_
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_