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)
SNRPD2	1	-1.740	2.880	0.068	-0.598	0.211	0.010	0.140
LSM8	1	-1.730	3.040				-0.554	-0.140
LSM7	1	-2.240	3.880
ATXN2L	1	-0.290	0.580	-0.053			-0.841	-0.603
LSM3	1	-1.730	3.210				-1.212	-1.020
SNRPD3	0			-0.044	-0.427	0.192
LSM5	0	-1.270	1.430				-1.385
SNRPB	0	-0.690	0.900	0.279	-0.218	0.342	0.246	0.550
SNRPN	0	-1.150	1.460	0.279	-0.218	0.342	0.246	0.550
SNRPN	0	1.390	-0.910	0.279	-0.218	0.342	0.246	0.550
LSM4	0	0.040	-0.030				-0.414	-0.767
SNRPF	0			-0.086	-0.877	-0.179	-0.438	0.348
SNRPG	0			-0.190	-0.311	0.245	0.156	0.568
SNRPG	0
LSM11	0	1.200	-1.030
SNRPD1	0	-0.780	0.750	0.034	-0.359	0.355	-1.109	-0.252
SNRPE	0	-1.140	2.270	-0.259	-0.638	-0.181	0.064	-0.174
ATXN2	0	-0.480	0.100	-1.858			-0.941	-0.424

Gene name	PTM type	PTM site	UV	UV (MG132)	Sequence
ATXN2	Ubiquitylation	K349	-0.862	0.369	_DMDSSYAK(gl)R_
ATXN2	Ubiquitylation	K455	-1.801		_ANQLAEEIESSAQYK(gl)AR_
ATXN2	Phosphorylation	S616		-0.891	_RM(ox)S(ph)SEGPPRM(ox)SPK_
ATXN2	Phosphorylation	S624	-1.157	-0.461	_MSSEGPPRMS(ph)PK_
ATXN2	Phosphorylation	S667		0.034	_TS(ph)PSGGTWSSVVSGVPR_
ATXN2	Phosphorylation	S669	0.002	0.244	_TSPS(ph)GGTWSSVVSGVPR_
ATXN2	Phosphorylation	T771	-0.128	-0.274	_QNSPAGNKENIKPNET(ph)SPSFSK_
ATXN2	Phosphorylation	S772	-0.093	-0.116	_ENIKPNETS(ph)PSFSK_
ATXN2	Phosphorylation	S784	-0.208	0.376	_GIS(ph)PVVSEHR_
ATXN2	Phosphorylation	S889		-0.710	_RGPEVTSQGVQTSS(ph)PACK_
ATXN2L	Phosphorylation	S111	0.569	0.606	_GPPQS(ph)PVFEGVYNNSR_
ATXN2L	Phosphorylation	S306	2.721	-0.478	_EIESS(ph)PQYR_
ATXN2L	Phosphorylation	S335	-0.517	0.205	_QGS(ph)GRESPSLASR_
ATXN2L	Phosphorylation	S339	-0.322	0.154	_QGSGRES(ph)PSLASR_
ATXN2L	Ubiquitylation	K348	0.308		_EGK(gl)YIPLPQR_
ATXN2L	Phosphorylation	S391		-0.879	_GPHHLDNSS(ph)PGPGSEAR_
ATXN2L	Phosphorylation	T421	-1.623	-1.486	_T(ph)LSSPSNRPSGETSVPPPPAVGR_
ATXN2L	Phosphorylation	S423	-1.658		_TLS(ph)SPSNRPSGETSVPPPPAVGR_
ATXN2L	Phosphorylation	S424		-1.181	_TLSS(ph)PSNRPSGETSVPPPPAVGR_
ATXN2L	Phosphorylation	S449	-0.031	0.247	_M(ox)YPPRS(ph)PK_
ATXN2L	Ubiquitylation	K507	-0.776		_ISLAPTDVK(gl)ELSTKEPGR_
ATXN2L	Ubiquitylation	K538	-1.286		_VPGLQNEQK(gl)R_
ATXN2L	Phosphorylation	S559	-0.284	-0.125	_LQPSSS(ph)PENSLDPFPPR_
ATXN2L	Phosphorylation	S589	0.433	0.975	_EKEVDGLLTS(ph)EPM(ox)GSPVSSK_
ATXN2L	Phosphorylation	S594	0.171	0.492	_EVDGLLTSEPMGS(ph)PVSSK_
ATXN2L	Phosphorylation	S630		-2.209	_TESVSDKEDKPPLAPSGGTEGPEQPPPPCPS(ph)QTGSPPVGLIK_
ATXN2L	Phosphorylation	T632	-3.399	-2.759	_TESVSDKEDKPPLAPSGGTEGPEQPPPPCPSQT(ph)GSPPVGLIK_
ATXN2L	Phosphorylation	S680	0.025	-0.810	_STS(ph)TPTSPGPR_
ATXN2L	Phosphorylation	T683	-1.044	-0.897	_STSTPT(ph)SPGPR_
LSM11	Phosphorylation	S21	-1.366	-1.012	_SAGAGSPARPPS(ph)PR_
LSM4	Ubiquitylation	K52	-1.562		_DGDK(gl)FWR_
LSM4	Ubiquitylation	K67	-0.211	0.950	_GSTIK(gl)YLR_
LSM7	Ubiquitylation	K17	-0.496		_ESILDLSK(gl)YIDK_
LSM7	Ubiquitylation	K26	-0.221	-0.411	_VK(gl)FQGGR_
SNRPB	Ubiquitylation	K8	0.805		_SSK(gl)MLQHIDYR_
SNRPB	Ubiquitylation	K32		0.987	_IFIGTFK(gl)_
SNRPB	Ubiquitylation	K88	-0.870		_GENLVSMTVEGPPPK(gl)DTGIAR_
SNRPD1	Ubiquitylation	K44	0.032		_AVK(gl)MTLK_
SNRPD2	Phosphorylation	S2	-0.117	0.507	_(ac)S(ph)LLNKPK_
SNRPD2	Ubiquitylation	K6	-0.352		_(ac)SLLNK(gl)PK_
SNRPD2	Ubiquitylation	K8	-0.201	-0.603	_(ac)SLLNKPK(gl)SEMTPEELQK_
SNRPD2	Phosphorylation	T12		0.766	_SEMT(ph)PEELQKR_
SNRPD2	Ubiquitylation	K98	0.883	0.887	_YISK(gl)MFLR_
SNRPD2	Ubiquitylation	K118	-0.918	-0.587	_NPLIAGK(gl)_
SNRPD3	Ubiquitylation	K78		0.797	_FLILPDMLK(gl)NAPMLK_
SNRPD3	Ubiquitylation	K84	-0.440	0.082	_NAPMLK(gl)SMK_
SNRPF	Ubiquitylation	K8	-1.763		_(ac)SLPLNPK(gl)PFLNGLTGKPVMVK_
SNRPF	Ubiquitylation	K17	-1.612		_(ac)SLPLNPKPFLNGLTGK(gl)PVMVK_
SNRPF	Ubiquitylation	K24	0.208	0.915	_LK(gl)WGMEYK_
SNRPG	Ubiquitylation	K3	0.152		_(ac)SK(gl)AHPPELKK(gl)_
SNRPG	Ubiquitylation	K11	-0.955		_AHPPELKK(gl)_
SNRPG	Ubiquitylation	K20	-0.065		_LSLK(gl)LNGGR_
SNRPN	Ubiquitylation	K8	0.805		_SSK(gl)MLQHIDYR_
SNRPN	Ubiquitylation	K32		0.987	_IFIGTFK(gl)_
SNRPN	Ubiquitylation	K88	-0.870		_GENLVSMTVEGPPPK(gl)DTGIAR_