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:	MATN3
Human P-Site:	S347
P-Site Sequence:	NEDRKTCSAQDKCAL
UniProt:	O15232
Intern. Prot. ID:	IPI00005690

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	MATN3	O15232	S347	NEDRKTCSAQDKCAL	100 / 9 AA	53
Phosphosite 1:	PARP12	Q9H0J9	S285	YHIRKSCSFQDKCHR	77 / 9 AA	79
Phosphosite 2:	MATN3	O15232	T345	TLNEDRKTCSAQDKC	100 / 7 AA	53
Phosphosite 3:	PAR3-beta	Q8TEW8	S635	LHPLGTCSPQDKQKG	85 / 7 AA	132
Phosphosite 4:	MATN3	O15232	S389	NADKKTCSVRDKCAL	66 / 9 AA	53
Phosphosite 5:	NCBP1	Q09161	T331	SHWKERKTCAAQLVS	85 / 7 AA	92
Phosphosite 6:	MATN3	O15232	S305	NADKKTCSALDRCAL	66 / 9 AA	53
Phosphosite 7:	LRP3	O75074	S722	DAPREPCSAQDPHPQ	75 / 8 AA	83
Phosphosite 8:	LKB1	Q15831	S419	NPARKACSASSKIRR	66 / 9 AA	49
Phosphosite 9:	URB1	O60287	S1164	LVQLLTCSPQDQLQS	71 / 7 AA	254
Phosphosite 10:	ASTN1	O14525	T1283	LSRDLRKTCEEQTLS	71 / 7 AA	145
Phosphosite 11:	CYP4X1	Q8N118	T173	KWEKICSTQDTSVEV	71 / 7 AA	59
Phosphosite 12:	CYP4X1	Q8N118	S172	DKWEKICSTQDTSVE	71 / 7 AA	59
Phosphosite 13:	MATN3	O15232	S431	NEDKKTCSATEEARR	62 / 8 AA	53
Phosphosite 14:	ZNF703	Q9H7S9	S400	GSSCSTCSAHDPAGP	83 / 6 AA	58
Phosphosite 15:	LRFN5	Q96NI6	S618	IQSSETCSSQDSSTT	62 / 8 AA	79
Phosphosite 16:	LRFN5	Q96NI6	S619	QSSETCSSQDSSTTT	83 / 6 AA	79
Phosphosite 17:	ERAP2	Q6P179	S357	LFDPKTSSASDKLWV	66 / 9 AA	110
Phosphosite 18:	ABCA2	Q9BZC7	S1643	EPVRCTCSAQGTGFS	66 / 9 AA	270
Phosphosite 19:	GABRE	P78334	S424	GEERPSCSAQQPPSP	62 / 8 AA	58
Phosphosite 20:	KIAA1904	Q5R3F8	T628	DAAVTRKTCSVSSSG	83 / 6 AA	90