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:	COL4A3
Human P-Site:	S603
P-Site Sequence:	GPPGDPGSPGSPGPA
UniProt:	Q01955
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	COL4A3	Q01955	S603	GPPGDPGSPGSPGPA	100 / 9 AA	162
Phosphosite 1:	COL29A1	A8TX70	S1492	GEKGDPGSQGSPGSR	88 / 9 AA	290
Phosphosite 2:	COL4A4	P53420	S1092	GPKGEPGSPGCPGHF	77 / 9 AA	164
Phosphosite 3:	COL2A1	P02458	T397	GPRGEPGTPGSPGPA	77 / 9 AA	142
Phosphosite 4:	CO3A1	P02461	S131	GIPGQPGSPGSPGPP	88 / 9 AA	139
Phosphosite 5:	COL10A1	Q03692	S471	GSKGDPGSPGPPGPA	88 / 9 AA	66
Phosphosite 6:	CO3A1	P02461	S193	GTSGHPGSPGSPGYQ	88 / 9 AA	139
Phosphosite 7:	COL4A3	Q01955	S1105	GPEGAPGSPGSPGLP	88 / 9 AA	162
Phosphosite 8:	SMEK1	Q6IN85	S777	GSPGSPGSPGSPGSV	88 / 9 AA	95
Phosphosite 9:	SMEK1	Q6IN85	S774	GSPGSPGSPGSPGSP	88 / 9 AA	95
Phosphosite 10:	SMEK1	Q6IN85	S771	NLPGSPGSPGSPGSP	88 / 9 AA	95
Phosphosite 11:	COL4A4	P53420	S1055	GDQGEPGSPGPPGFS	77 / 9 AA	164
Phosphosite 12:	COL2A1	P02458	T157	GRDGEPGTPGNPGPP	66 / 9 AA	142
Phosphosite 13:	COL9A2	Q14055	S642	GKDGDRGSPGAPGEA	77 / 9 AA	65
Phosphosite 14:	COL4A1	P02462	T973	GSRGDPGTPGVPGKD	77 / 9 AA	161
Phosphosite 15:	COL4A4	P53420	S1217	GERGDPGSPGISPPG	100 / 7 AA	164
Phosphosite 16:	COL6A2	P12110	T431	GRRGDPGTKGSPGSD	77 / 9 AA	109
Phosphosite 17:	COL7A1	Q02388	S2600	GIPGDPGSPGKDGVP	100 / 7 AA	295
Phosphosite 18:	COL16A1	Q07092	T695	GNPGDPGTPGTTGRP	75 / 8 AA	158
Phosphosite 19:	COL7A1	Q02388	T1318	GRAGNPGTPGAPGLK	66 / 9 AA	295
Phosphosite 20:	COL4A4	P53420	S315	GPRGDPGSYGSPGFP	88 / 9 AA	164