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:	COL21A1
Human P-Site:	Y480
P-Site Sequence:	GQDGKPGYQGIAGTP
UniProt:	Q96P44
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	COL21A1	Q96P44	Y480	GQDGKPGYQGIAGTP	100 / 9 AA	99
Phosphosite 1:	COL4A2	P08572	Y605	GPPGDPGYPGIPGTK	66 / 9 AA	168
Phosphosite 2:	SCUBE2	Q9NQ36	Y77	KCSCKPGYQGEGRQC	100 / 6 AA	110
Phosphosite 3:	CANX	P27824	Y393	PMIDNPSYQGIWKPR	62 / 8 AA	68
Phosphosite 4:	CANX	P27824	S392	PPMIDNPSYQGIWKP	62 / 8 AA	68
Phosphosite 5:	CLGN	O14967	Y382	PLVDNPNYQGIWSPR	62 / 8 AA	70
Phosphosite 6:	ACSM2A	Q68CK6	Y382	TMKIKPGYMGTAASC	75 / 8 AA	64
Phosphosite 7:	ACSM2A	Q08AH3	Y382	TMKIKPGYMGTAASC	75 / 8 AA	64
Phosphosite 8:	KIAA0586	Q9BVV6	Y637	QVYGKPVYQGHRSTL	85 / 7 AA	169
Phosphosite 9:	PALMD	Q9NP74	Y463	GEAEKPSYHPIAPHS	55 / 9 AA	63
Phosphosite 10:	CO3A1	P02461	Y199	GSPGSPGYQGPPGEP	85 / 7 AA	139
Phosphosite 11:	COL10A1	Q03692	Y390	GSDGKPGYPGKPGLD	85 / 7 AA	66
Phosphosite 12:	PGLYRP4	Q96LB8	Y300	QGSSTPGYDDIALGI	55 / 9 AA	41
Phosphosite 13:	CSGALNACT1	Q8TDX6	Y57	SPTGKEGYQAVLQEW	62 / 8 AA	61
Phosphosite 14:	C2orf70	A6NJV1	Y26	PPGLMPGYQGHVPTV	83 / 6 AA	23
Phosphosite 15:	C4orf22	Q6V702	Y176	VSNSSPNYQVIADNP	55 / 9 AA	27
Phosphosite 16:	MEPE	Q9NQ76	Y303	LDTKKPGYNEIPERE	62 / 8 AA	58
Phosphosite 17:	RAPGEF6	Q8TEU7	Y1511	PPPTPPGYLGISLAD	71 / 7 AA	179
Phosphosite 18:	CEP350	Q5VT06	Y689	ETQAKPGYQPSGESD	83 / 6 AA	351
Phosphosite 19:	C3orf50	Q0D2K5	Y92	SCTCKSGYQGNRCQK	83 / 6 AA	22
Phosphosite 20:	LRRK1	Q38SD2	Y1453	GVEGTPGYQAPEIRP	71 / 7 AA	228