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)
MKL2	2	1.160	-0.390
MKL1	1	-1.300	2.170
PHACTR2	0	0.790	-1.030
PHACTR4	0	1.170	-1.060

Gene name	PTM type	PTM site	UV	UV (MG132)	Sequence
MKL1	Phosphorylation	S156		9.908	_VSEPLLSATSAS(ph)PTQVVSQLPMGR_
MKL1	Phosphorylation	T447	0.025	-0.220	_FGST(ph)GSTPPVS(ph)PTPSER_
MKL1	Phosphorylation	T450	-0.735	-0.359	_FGSTGST(ph)PPVS(ph)PTPSER_
MKL1	Phosphorylation	S454	-0.079	-0.336	_FGSTGST(ph)PPVS(ph)PTPSER_
MKL2	Phosphorylation	S552	1.517		_M(ox)TNNEDS(ph)LSPTSSTLSNLELDAAEKDR_
MKL2	Phosphorylation	S554	1.224	1.607	_MTNNEDSLS(ph)PTSSTLSNLELDAAEKDR_
PHACTR2	Phosphorylation	T25	-0.089	-0.364	_ASIANSDGPTAGSQT(ph)PPFK_
PHACTR2	Phosphorylation	S522	0.349	0.178	_RLS(ph)QRPTTEELEQR_
PHACTR2	Phosphorylation	S560		-0.050	_KLS(ph)LRPTVAELQAR_
PHACTR4	Phosphorylation	S118	0.238	0.418	_SSS(ph)PVQVEEEPVR_
PHACTR4	Phosphorylation	S176	0.748	0.601	_RPLS(ph)SSHEASEGQAK_
PHACTR4	Phosphorylation	S270	-1.012		_NS(ph)NPVIAELSQAINSGTLLSKPS(ph)PPLPPK_
PHACTR4	Phosphorylation	S291	-0.803		_NSNPVIAELSQAINSGTLLSKPS(ph)PPLPPK_
PHACTR4	Phosphorylation	S344	-2.017	-2.249	_SPS(ph)PPLPTHIPPEPPRT(ph)PPFPAK_
PHACTR4	Phosphorylation	T358	-1.951	-2.796	_SPS(ph)PPLPTHIPPEPPRT(ph)PPFPAK_
PHACTR4	Phosphorylation	S464	-0.157	0.013	_S(ph)LPITIEM(ox)LK_
PHACTR4	Phosphorylation	S590	-0.597	-0.603	_RLS(ph)QRPTPEELEQR_
PHACTR4	Phosphorylation	S628	0.269	0.069	_KLS(ph)QRPTVAELLAR_
PHACTR4	Phosphorylation	T632	0.174	0.079	_LSQRPT(ph)VAELLAR_