Note - Blast analyses are based on comparisons of the phosphosites and the bordering four amino acids on each side of these phosphosites.

Phosphosite
Human Protein:	SON
Human P-Site:	S2038
P-Site Sequence:	SPIRRKRSRSSERGR
UniProt:	P18583
Intern. Prot. ID:	IPI00000192

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	SON	P18583	S2038	SPIRRKRSRSSERGR	100 / 9 AA	264
Phosphosite 1:	CLK4	Q9HAZ1	S136	KSHRRKRSRSIEDDE	88 / 9 AA	57
Phosphosite 2:	FBXO18	Q8NFZ0	S124	APPSRKRSWSSEEES	87 / 8 AA	118
Phosphosite 3:	CLK1	P49759	T138	KSHRRKRTRSVEDDE	77 / 9 AA	57
Phosphosite 4:	ZNF265	O95218	S305	RKKRRTRSRSPERRH	77 / 9 AA	37
Phosphosite 5:	CLK1	P49759	S34	SHKRRKRSHSSAQEN	77 / 9 AA	57
Phosphosite 6:	SON	P18583	S2040	IRRKRSRSSERGRSP	100 / 7 AA	264
Phosphosite 7:	SON	P18583	S1829	LRSRSKRSKSSEHKS	77 / 9 AA	264
Phosphosite 8:	RBM39	Q14498	S74	KSRERKRSRSKERRR	87 / 8 AA	59
Phosphosite 9:	PRPF38B	Q5VTL8	S501	KEKSRKRSRSKERSH	87 / 8 AA	64
Phosphosite 10:	PTTG1IP	P53801	S126	CCCRRKRSRKPDRSE	66 / 9 AA	20
Phosphosite 11:	SRRM3	A6NNA2	S396	RRRRRRRSRSSASAP	77 / 9 AA	65
Phosphosite 12:	CCNL1	Q9UK58	S502	HRDRRERSRSFERSH	77 / 9 AA	60
Phosphosite 13:	TRIM28	Q13263	S471	HVSGVKRSRSGEGEV	85 / 7 AA	89
Phosphosite 14:	CCNL2	Q96S94	S498	RDQRRERSRSYERTG	77 / 9 AA	58
Phosphosite 15:	RSRC1	Q96IZ7	S83	YGSRRKRSRSRSRGR	100 / 7 AA	39
Phosphosite 16:	CROP	O95232	S293	DRERRKRSRSRSRHS	100 / 7 AA	51
Phosphosite 17:	ATF7IP	Q6VMQ6	S557	EFSRRKRSKSEDMDN	66 / 9 AA	136
Phosphosite 18:	TRIM28	Q13263	S473	SGVKRSRSGEGEVSG	85 / 7 AA	89
Phosphosite 19:	PHRF1	Q9P1Y6	S1165	RRKRRSRSPSSEHRA	77 / 9 AA	179
Phosphosite 20:	CGNL1	Q0VF96	S386	NPDDRKRSRSVDSAF	75 / 8 AA	149