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)
PHC1	1	-1.150	1.170				1.791	0.770
PHC1	1	1.810	-0.840				1.791	0.770
PHC3	1	-1.660	2.820		0.376
PHC3	1	-1.660	2.820
RNF2	0	0.560	-0.930	-0.061	-0.694	0.392	0.384	0.526
PHC2	0				0.376
PHC2	0						0.675	0.206
CBX4	0	0.230	0.160				0.798	0.323
PCGF6	0	0.670	0.070	0.099	-0.103	0.347
BMI1	0	0.900	-1.150	0.182

Gene name	PTM type	PTM site	UV	UV (MG132)	Sequence
CBX4	Phosphorylation	S291	0.263	0.125	_SGEVAEGEARS(ph)PSHKK_
CBX4	Phosphorylation	S293		0.227	_SGEVAEGEARSPS(ph)HKK_
PCGF6	Phosphorylation	S115	1.032	0.880	_LEGGRQDS(ph)EDEEER_
PCGF6	Ubiquitylation	K234	-2.981	-2.972	_GLEVPKPAVPQPVPSSK(gl)GR_
PHC1	Phosphorylation	T1017		-0.396	_DLGNPNTAPPT(ph)PELHGINPVFLSSNPSR_
PHC3	Phosphorylation	S263	0.297	0.318	_ISQRDPS(ph)PESNK_
PHC3	Phosphorylation	S315		-0.458	_HQQIPLHS(ph)PPSK_
PHC3	Phosphorylation	T609	-0.358	-0.757	_MDRT(ph)PPPPTLS(ph)PAAITVGR_
PHC3	Phosphorylation	S616	-0.738	-0.757	_MDRT(ph)PPPPTLS(ph)PAAITVGR_
PHC3	Phosphorylation	S761		0.019	_HADNS(ph)SDTEMEDMIAEETLEEMDSELLK_
PHC3	Phosphorylation	S762		0.035	_HADNSS(ph)DTEMEDMIAEETLEEMDSELLK_
PHC3	Phosphorylation	T764		0.158	_HADNSSDT(ph)EMEDMIAEETLEEMDSELLK_
PHC3	Phosphorylation	S842		-0.278	_GRRPS(ph)GPDGAAR_
RNF2	Ubiquitylation	K65	0.105		_NTMTTK(gl)ECLHR_
RNF2	Ubiquitylation	K275	1.064		_SK(gl)GESNQMNLDTASEK_