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)
COPS2	1	-0.730	0.380	0.562	1.638	0.915
GPS1	1	0.850	-0.820		1.476	0.259
GPS1	1	0.850	-0.820	0.185
COPS8	1	-2.510	4.680	-0.425
COPS7A	0	-0.880	1.150	-0.112
COPS5	0	-0.780	1.480	-0.905	0.882	0.714
COPS4	0	0.660	-0.480		0.087	0.400	-0.088
COPS4	0	0.660	-0.480	-0.426
COPS3	0	1.000	-0.850	-0.060			0.717	0.043
TP53	0	-1.070	1.050	-2.808	0.076	-0.094	0.436	0.497
COPS6	0	0.920	-0.550	0.202			-0.766	0.032

Gene name	PTM type	PTM site	UV	UV (MG132)	Sequence
COPS2	Ubiquitylation	K423	0.078	1.264	_IDQVNQLLELDHQK(gl)R_
COPS2	Ubiquitylation	K434	0.640	0.787	_YTALDK(gl)WTNQLNSLNQAVVSK_
COPS3	Ubiquitylation	K125		0.384	_GIGILK(gl)QAIDK_
COPS3	Ubiquitylation	K281	0.168	0.593	_NLVNK(gl)HSETFTR_
COPS3	Ubiquitylation	K296	0.462		_DNNMGLVK(gl)QCLSSLYK_
COPS3	Ubiquitylation	K391	0.160	-0.420	_LK(gl)AMDQEITVNPQFVQK_
COPS3	Phosphorylation	S407		1.311	_S(ph)MGSQEDDSGNKPSSYS_
COPS3	Phosphorylation	S410	0.685	1.334	_SM(ox)GS(ph)QEDDSGNKPSSYS_
COPS3	Phosphorylation	S423	0.370	0.214	_SMGSQEDDSGNKPSSYS(ph)_
COPS4	Ubiquitylation	K369	0.523		_AEK(gl)IASQMITEGR_
COPS5	Ubiquitylation	K34	0.220		_K(gl)QQQEILAAKPWTK_
COPS5	Ubiquitylation	K56	0.550		_YCK(gl)ISALALLK_
COPS5	Ubiquitylation	K180		0.752	_TISAGK(gl)VNLGAFR_
COPS5	Ubiquitylation	K194	-1.866		_GYK(gl)PPDEGPSEYQTIPLNK_
COPS7A	Ubiquitylation	K20		-0.948	_VTGQNQEQFLLLAK(gl)SAK_
COPS7A	Ubiquitylation	K95		-1.113	_NLPPLTEAQKNK(gl)_
COPS7A	Ubiquitylation	K199	0.012	-0.446	_ANQHK(gl)EQQLGLK_
COPS7A	Ubiquitylation	K217	0.124	-0.288	_QQIESEVANLK(gl)K_
COPS7A	Ubiquitylation	K218		-0.316	_QQIESEVANLK(gl)K_
COPS7A	Ubiquitylation	K269	-0.070		_GSAK(gl)IWSK_
GPS1	Ubiquitylation	K177		-0.421	_ALLK(gl)LEK_
GPS1	Ubiquitylation	K186	-0.059	0.041	_LDTDLK(gl)NYK_
GPS1	Ubiquitylation	K189	-0.352	-0.135	_NYK(gl)GNSIK_
GPS1	Ubiquitylation	K194	0.155	-0.182	_GNSIK(gl)ESIRR_
GPS1	Ubiquitylation	K283	0.835	0.572	_DSQTQAILTK(gl)LK_
GPS1	Ubiquitylation	K372		-0.090	_FYESK(gl)YASCLK_
GPS1	Ubiquitylation	K457	-0.226	-0.201	_VDSHSK(gl)ILYAR_
GPS1	Ubiquitylation	K473	-0.128	0.230	_STTFEK(gl)SLLMGK_
GPS1	Ubiquitylation	K479		0.097	_SLLMGK(gl)EFQR_
GPS1	Ubiquitylation	K502	-0.539	-1.230	_NQIHVK(gl)SPPREGSQGELTPANSQSR_
GPS1	Phosphorylation	S503		-0.084	_NQIHVKS(ph)PPR_
GPS1	Phosphorylation	S509	0.192	0.433	_EGS(ph)QGELTPANSQSR_
GPS1	Phosphorylation	T514	0.479	0.814	_EGSQGELT(ph)PANS(ph)QSR_
GPS1	Phosphorylation	S518		3.914	_EGSQGELT(ph)PANS(ph)QSR_
TP53	Ubiquitylation	K120	-0.188		_LGFLHSGTAK(gl)SVTCTYSPALNK_
TP53	Ubiquitylation	K164	0.157	-1.260	_AMAIYK(gl)QSQHMTEVVR_
TP53	Phosphorylation	S314	-0.695	-1.000	_ALPNNTSS(ph)SPQPK_
TP53	Phosphorylation	S315	-0.762	-0.959	_RALPNNTSSS(ph)PQPK_
TP53	Ubiquitylation	K320	-0.978		_ALPNNTSSSPQPKK(gl)_
TP53	Ubiquitylation	K357	-0.231	-0.823	_ELNEALELKDAQAGK(gl)EPGGSR_