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)
FIP1L1	1	-1.930	3.940	0.293	-0.487	0.231	-0.419	0.354
CPSF3	0	0.760	-0.720	-0.001	-0.206	0.455	-0.433	0.066
CPSF4	0	-0.220	0.390	0.323	-0.195	0.805	-0.308	0.270
CPSF2	0	0.150	0.340	-0.113	-0.032	0.570	0.441	0.355

Gene name	PTM type	PTM site	UV	UV (MG132)	Sequence
CPSF2	Ubiquitylation	K140		-0.692	_FSQIVNLKGK(gl)_
CPSF2	Ubiquitylation	K324	-1.406	-1.082	_VPSPK(gl)VVLASQPDLECGFSR_
CPSF2	Ubiquitylation	K725		0.157	_LSDFK(gl)QVLLR_
CPSF3	Ubiquitylation	K348	0.384		_ELFESWCTDK(gl)R_
CPSF3	Ubiquitylation	K428	0.656	0.535	_LK(gl)AALIR_
CPSF3	Ubiquitylation	K465	0.422		_NTEAVTLNFRGEKLAK(gl)_
CPSF3	Ubiquitylation	K474	-0.536		_VMGFLADKK(gl)PEQGQR_
CPSF3	Ubiquitylation	K487	0.072	0.155	_VSGILVK(gl)R_
CPSF3	Ubiquitylation	K604	-0.159		_K(gl)LEMHVYSK_
CPSF4	Ubiquitylation	K51	-1.354	-0.800	_AACGK(gl)GGMCPFR_
CPSF4	Phosphorylation	S200	0.618	0.477	_S(ph)SSLIQLTSQNSSPNQQR_
CPSF4	Phosphorylation	S202	0.627	-0.110	_SSS(ph)LIQLTSQNS(ph)SPNQQR_
CPSF4	Phosphorylation	S211	0.740	0.194	_SSS(ph)LIQLTSQNS(ph)SPNQQR_
FIP1L1	Ubiquitylation	K123	-1.286		_TGAPQYGSYGTAPVNLNIK(gl)TGGR_
FIP1L1	Phosphorylation	S259	-1.364	-0.698	_AEFTS(ph)PPSLFK_
FIP1L1	Phosphorylation	S492	0.040	0.085	_DHS(ph)PTPSVFNSDEER_
FIP1L1	Phosphorylation	T494	0.134	0.020	_DHSPT(ph)PSVFNSDEER_