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:	MATR3
Human P-Site:	S598
P-Site Sequence:	KSRKRSYSPDGKESP
UniProt:	P43243
Intern. Prot. ID:	IPI00017297

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	MATR3	P43243	S598	KSRKRSYSPDGKESP	100 / 9 AA	95
Phosphosite 1:	MATR3	P43243	Y597	DKSRKRSYSPDGKES	100 / 8 AA	95
Phosphosite 2:	TAB1	Q15750	S38	SASNRSYSADGKGTE	77 / 9 AA	55
Phosphosite 3:	MATR3	P43243	S596	KDKSRKRSYSPDGKE	100 / 7 AA	95
Phosphosite 4:	C12orf35	Q9HCM1	S1708	RLSKRSFSADGFEML	75 / 8 AA	195
Phosphosite 5:	TAB1	Q15750	Y37	GSASNRSYSADGKGT	75 / 8 AA	55
Phosphosite 6:	CLK1	P49759	Y8	MRHSKRTYCPDWDDK	71 / 7 AA	57
Phosphosite 7:	NOBOX	O60393	S198	EVKIGKRSYSPAPGK	85 / 7 AA	74
Phosphosite 8:	NOBOX	O60393	Y199	VKIGKRSYSPAPGKQ	85 / 7 AA	74
Phosphosite 9:	NOBOX	O60393	S200	KIGKRSYSPAPGKQK	85 / 7 AA	74
Phosphosite 10:	SLC26A8	Q96RN1	S961	RHPMDSYSPEGNSNE	71 / 7 AA	109
Phosphosite 11:	PPHLN1	Q8NEY8	S153	GSSVSSRSYSPERSK	83 / 6 AA	53
Phosphosite 12:	HSPA12A	O43301	S587	LGELVKRSYTPAKPS	71 / 7 AA	75
Phosphosite 13:	Cbl-b	Q13191	Y337	LYPDGRSYNPDLTGL	83 / 6 AA	109
Phosphosite 14:	HSPA12A	O43301	Y588	GELVKRSYTPAKPSQ	71 / 7 AA	75
Phosphosite 15:	PPHLN1	Q8NEY8	Y154	SSVSSRSYSPERSKS	83 / 6 AA	53
Phosphosite 16:	PPHLN1	Q8NEY8	S155	SVSSRSYSPERSKSY	83 / 6 AA	53
Phosphosite 17:	EML1	O00423	S635	QLSVMRYSPDGNFLA	83 / 6 AA	90
Phosphosite 18:	BBS9	Q3SYG4	Y495	SVYLKRSYTPSELEG	83 / 6 AA	99
Phosphosite 19:	BBS9	Q3SYG4	T496	VYLKRSYTPSELEGN	83 / 6 AA	99
Phosphosite 20:	NCOR2	Q9Y618	S2057	GYHGSSYSPEGVEPV	71 / 7 AA	275