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)
PIK3R2	1	2.740	-1.180				0.269	0.348
PIK3CB	0	-1.390	2.350
PIK3CB	0	-0.710	1.450
SOS1	0	0.500	-0.620	-0.570
PIK3R3	0	-0.140	-0.480
PIK3R3	0	-0.140	-0.480				-0.441	0.147
PIK3CA	0
PIK3R1	0	1.910	-1.220				-0.441	0.147
JAK1	0	0.190	-0.100		-1.504	-0.381		-0.438
INPPL1	0	1.690	-0.810
HRAS	0	1.470	-0.520
GRB2	0	-0.240	0.300		-1.021	0.057	0.906

Gene name	PTM type	PTM site	UV	UV (MG132)	Sequence
GRB2	Ubiquitylation	K10	0.146		_YDFK(gl)ATADDELSFK_
GRB2	Ubiquitylation	K20	-0.078		_ATADDELSFK(gl)R_
GRB2	Ubiquitylation	K69	-0.362	0.641	_AK(gl)AEEMLSK_
GRB2	Ubiquitylation	K76	0.754		_AEEMLSK(gl)QR_
GRB2	Ubiquitylation	K109	0.381	-0.002	_FGNDVQHFK(gl)VLR_
HRAS	Ubiquitylation	K170	-1.005		_K(gl)LNPPDESGPGCMSCK_
INPPL1	Phosphorylation	S1003	-1.290		_NSFNNPAYYVLEGVPHQLLPPEPPS(ph)PAR_
JAK1	Ubiquitylation	K227	-0.405		_YIPETLNK(gl)SIR_
JAK1	Ubiquitylation	K249	0.116	0.771	_DFLK(gl)EFNNK_
JAK1	Ubiquitylation	K559	-0.478		_EISNLLVATK(gl)K_
PIK3CA	Ubiquitylation	K864	0.390	0.588	_NSHTIM(ox)QIQCK(gl)GGLK_
PIK3CA	Ubiquitylation	K868	0.204	0.651	_NSHTIM(ox)QIQCKGGLK(gl)_
PIK3CA	Ubiquitylation	K974	-0.273		_GAQECTK(gl)TREFER_
PIK3CB	Ubiquitylation	K1044		0.990	_SEEEALKQFKQK(gl)_
PIK3R2	Phosphorylation	S262		-2.237	_APPPPS(ph)SPPPGGAPDGSEPSPDFPALLVEK_
PIK3R2	Phosphorylation	S263		-2.237	_APPPPS(ph)SPPPGGAPDGSEPSPDFPALLVEK_
PIK3R2	Ubiquitylation	K500	-0.189		_IFEEQGQTQEK(gl)CSK_
PIK3R2	Ubiquitylation	K541	-0.609		_TK(gl)LEQQLR_
PIK3R2	Ubiquitylation	K564	-0.431	-1.022	_MNSLK(gl)PDLMQLR_
PIK3R3	Ubiquitylation	K226		-0.376	_YQQDQLVKEDNIDAVGKK(gl)_
PIK3R3	Ubiquitylation	K320		0.385	_LGEIHDSK(gl)MR_
SOS1	Phosphorylation	S1082	0.278		_IPESETESTASAPNS(ph)PR_
SOS1	Phosphorylation	S1166	0.097	-0.094	_RPESAPAES(ph)SPSK_