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:	COL28A1
Human P-Site:	S508
P-Site Sequence:	GPKGEPGSIGLPGQP
UniProt:	Q2UY09
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	COL28A1	Q2UY09	S508	GPKGEPGSIGLPGQP	100 / 9 AA	117
Phosphosite 1:	COL5A2	P05997	S613	GIRGQPGSMGLPGPK	77 / 9 AA	145
Phosphosite 2:	COL21A1	Q96P44	Y687	GSPGEPGYMGLPGIQ	77 / 9 AA	99
Phosphosite 3:	COL4A1	P02462	S759	GTPGEKGSIGVPGVP	77 / 9 AA	161
Phosphosite 4:	COL22A1	Q8NFW1	S534	GEKGEKGSLGLPGPP	77 / 9 AA	161
Phosphosite 5:	COL27A1	Q8IZC6	S899	GKVGDKGSIGFPGPP	66 / 9 AA	187
Phosphosite 6:	COL27A1	Q8IZC6	S1524	GNQGEPGSKGQPGDS	77 / 9 AA	187
Phosphosite 7:	IFNGR1	P15260	S391	SNQSEPGSIALNSYH	75 / 8 AA	54
Phosphosite 8:	COL4A5	P29400	S1055	GVPGQPGSPGLPGQK	77 / 9 AA	161
Phosphosite 9:	COL4A1	P02462	S1155	GQKGEPGSDGIPGSA	77 / 9 AA	161
Phosphosite 10:	COL22A1	Q8NFW1	S1064	GDKGSPGSRGLPGFP	77 / 9 AA	161
Phosphosite 11:	COL1A2	P08123	S404	GLRGSPGSRGLPGAD	77 / 9 AA	129
Phosphosite 12:	CO3A1	P02461	S1018	GRDGNPGSDGLPGRD	77 / 9 AA	139
Phosphosite 13:	DPPA4	Q7L190	S38	QASNQPNSIALPGTS	55 / 9 AA	34
Phosphosite 14:	ZNF638	Q14966	S36	GPFMRPGSMGLPRFY	85 / 7 AA	221
Phosphosite 15:	COL9A3	Q14050	S570	GPPGPPGSIGHPGAR	77 / 9 AA	64
Phosphosite 16:	SF3B3	Q15393	S659	DELGERGSIGFLYLN	75 / 8 AA	136
Phosphosite 17:	COL1A1	P02452	T478	ARGEPGPTGLPGPPG	75 / 8 AA	139
Phosphosite 18:	COL4A1	P02462	S578	GPKGSPGSVGLKGER	75 / 8 AA	161
Phosphosite 19:	SPRR3	Q9UBC9	S114	TKVPEPGSIKVPDQG	75 / 8 AA	18
Phosphosite 20:	COL16A1	Q07092	S1492	GRPGAPGSPGLPGQI	77 / 9 AA	158