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)
RPS13	2	-0.240	1.210	-0.179	0.154	-0.146	-0.498	-0.115
PTBP2	2	-1.420	3.200		-0.768	-1.756
PTBP2	2	-1.420	3.200				-0.924	-0.838
PTBP3	1	0.070	0.580		-1.751	2.950	-0.957	0.095
PTBP1	0	-1.070	1.860	-0.617	-1.830	-1.113
RPS26	0	-0.330	-0.010	0.255	0.251	-0.041	-0.285	0.176

Gene name	PTM type	PTM site	UV	UV (MG132)	Sequence
PTBP1	Ubiquitylation	K13	-0.461	0.072	_(ac)MDGIVPDIAVGTK(gl)R_
PTBP1	Ubiquitylation	K92	0.474	0.219	_VTNLLMLK(gl)GK_
PTBP1	Ubiquitylation	K94	1.069	0.999	_VTNLLMLKGK(gl)_
PTBP1	Ubiquitylation	K134	0.323		_GQPIYIQFSNHK(gl)ELK_
PTBP1	Ubiquitylation	K137	-0.157	-0.233	_ELK(gl)TDSSPNQAR_
PTBP1	Phosphorylation	T138	0.390		_ELKT(ph)DSSPNQAR_
PTBP1	Phosphorylation	S140	0.879		_ELKTDS(ph)SPNQAR_
PTBP1	Phosphorylation	S141	0.446	0.650	_ELKTDSS(ph)PNQAR_
PTBP1	Ubiquitylation	K259	0.361		_IDFSK(gl)LTSLNVK_
PTBP1	Ubiquitylation	K266	0.803	-0.412	_LTSLNVK(gl)YNNDK_
PTBP1	Ubiquitylation	K410	0.833		_ITLSK(gl)HQNVQLPR_
PTBP1	Ubiquitylation	K428	0.281		_EGQEDQGLTK(gl)DYGNSPLHR_
PTBP1	Ubiquitylation	K482	1.293	1.265	_VLFSSNGGVVK(gl)GFK_
PTBP1	Ubiquitylation	K489	0.598		_FFQK(gl)DRK_
PTBP1	Ubiquitylation	K528	0.710		_VSFSK(gl)STI_
PTBP2	Ubiquitylation	K145	0.581	0.885	_ELK(gl)TDNTLNQR_
PTBP2	Phosphorylation	S316	-1.092	-0.631	_ETSLLAVPGALS(ph)PLAIPNAAAAAAAAAAGR_
PTBP2	Ubiquitylation	K491	2.017		_TLFANTGGTVK(gl)AFK_
PTBP3	Phosphorylation	S56	-0.802	-0.313	_RDRPPCS(ph)PSR_
PTBP3	Ubiquitylation	K137	0.374	-0.013	_ELK(gl)TDNLPNQAR_
PTBP3	Ubiquitylation	K423	-0.297		_LYGK(gl)VLR_
PTBP3	Ubiquitylation	K431	0.177		_ATLSK(gl)HQAVQLPR_
RPS13	Ubiquitylation	K27	0.373		_SVPTWLK(gl)LTSDDVK_
RPS13	Ubiquitylation	K34	0.701		_LTSDDVK(gl)EQIYK_
RPS13	Ubiquitylation	K39	2.149	3.003	_EQIYK(gl)LAK_
RPS13	Ubiquitylation	K43	0.350	2.293	_K(gl)GLTPSQIGVILR_