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)
GBA	1	-1.380	2.580	0.407			0.357	0.150
SPTLC1	0	0.110	-0.670				-0.731	-0.718
SPTLC1	0	0.110	-0.670
SPTLC2	0	0.960	-0.520				-0.006	0.034
SMPD4	0	-0.820	0.770				-0.386
SMPD4	0	0.310	-0.590				-0.386
SMPD4	0	-0.820	0.770				0.160	-0.145
SMPD4	0	0.310	-0.590				0.160	-0.145
CERS2	0	0.540	-0.590				0.176	0.286
SAMD8	0	-1.010	1.870
CERS1	0						1.058	0.489

Gene name	PTM type	PTM site	UV	UV (MG132)	Sequence
CERS1	Ubiquitylation	K87	-0.800	-0.846	_LFRPLAK(gl)R_
CERS2	Ubiquitylation	K96	-0.388	1.140	_QPK(gl)QVEVELLSR_
CERS2	Ubiquitylation	K131		-0.387	_NQDRPSLLK(gl)K_
CERS2	Ubiquitylation	K132	-0.187	0.184	_NQDRPSLLKK(gl)_
SAMD8	Ubiquitylation	K66		0.144	_VLGDIK(gl)R_
SMPD4	Phosphorylation	S169	-0.702	-0.315	_ASIQECILPDS(ph)PLYHNK_
SMPD4	Ubiquitylation	K453	-1.177	-1.794	_YAPDK(gl)QAPGSDSQPR_
SMPD4	Phosphorylation	S792	-0.397	0.128	_HLLS(ph)PVGR_
SPTLC1	Ubiquitylation	K127	0.685	0.734	_AAALASLKK(gl)_
SPTLC1	Ubiquitylation	K197		0.964	_AACFAIQK(gl)GLQASR_
SPTLC1	Ubiquitylation	K207		0.061	_SDIK(gl)LFK_
SPTLC2	Ubiquitylation	K391		-0.081	_SFGASGGYIGGK(gl)K_
SPTLC2	Ubiquitylation	K392		-0.081	_SFGASGGYIGGK(gl)K_