RNAi screen result	RNAPII IP (MG132)	CSB IP	CSB IP (MG132)	Chrom.	Chrom. (MG132)	Ubi /Phospo	Ubi /Phospho (MG132)
W

Gene name	MGoogle Score	RNAi high	RNAi low	RNAPII-IP (MG132)	CSB-IP	CSB-IP (MG132)	Chrom.	Chrom. (MG132)
CBX1	1	-2.050	3.860		-0.630	0.171	1.328	1.100
CBX5	0	0.350	-0.490	0.332	-0.485	0.744	0.961	0.512
CBX3	0	0.390	0.010	-0.267	-0.513	0.225

Gene name	PTM type	PTM site	UV	UV (MG132)	Sequence
CBX1	Ubiquitylation	K35	0.698		_GK(gl)VEYLLK_
CBX1	Phosphorylation	S89	0.056	0.422	_ADS(ph)DSEDKGEESKPK_
CBX1	Ubiquitylation	K139	-0.287		_WK(gl)NSDEADLVPAK_
CBX1	Ubiquitylation	K150	0.289	-0.097	_NSDEADLVPAK(gl)EANVK_
CBX3	Ubiquitylation	K5	0.311	0.641	_(ac)ASNK(gl)TTLQK_
CBX3	Ubiquitylation	K44	0.789		_VVNGK(gl)VEYFLK_
CBX3	Phosphorylation	S93	0.091	0.587	_RKS(ph)LSDSESDDSK_
CBX3	Ubiquitylation	K143	0.274		_WK(gl)DSDEADLVLAK_
CBX3	Ubiquitylation	K154	0.457	-0.090	_WKDSDEADLVLAK(gl)EANMK_
CBX5	Phosphorylation	S14	-0.620	0.260	_RTADSSSS(ph)EDEEEYVVEK_
CBX5	Ubiquitylation	K32	1.081		_VVK(gl)GQVEYLLK_
CBX5	Ubiquitylation	K68	1.329		_NLDCPELISEFMK(gl)K_
CBX5	Ubiquitylation	K69	0.893		_NLDCPELISEFMKK(gl)_
CBX5	Ubiquitylation	K91	1.360		_K(gl)SNFSNSADDIK_
CBX5	Phosphorylation	S92	0.064	-0.325	_RKS(ph)NFSNSADDIK_
CBX5	Ubiquitylation	K102	1.233	1.344	_KSNFSNSADDIK(gl)SK_
CBX5	Ubiquitylation	K154	0.568	0.740	_WKDTDEADLVLAK(gl)EANVK_