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:	S645
P-Site Sequence:	GLMGSNGSPGQPGTP
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	S645	GLMGSNGSPGQPGTP	100 / 9 AA	99
Phosphosite 1:	CO3A1	P02461	S1177	GERGSEGSPGHPGQP	77 / 9 AA	139
Phosphosite 2:	ANKRD56	A6NEL2	S166	KGGGSKGSPGQRPPV	77 / 9 AA	86
Phosphosite 3:	CO3A1	P02461	S469	GEDGKDGSPGEPGAN	66 / 9 AA	139
Phosphosite 4:	COL14A1	Q05707	S1549	GSPGRDGSPGQRGLP	66 / 9 AA	194
Phosphosite 5:	COL22A1	Q8NFW1	S1355	GSKGENGSPGLPGFL	77 / 9 AA	161
Phosphosite 6:	COL21A1	Q96P44	S681	GEPGATGSPGEPGYM	66 / 9 AA	99
Phosphosite 7:	COL22A1	Q8NFW1	S1334	GKNGSPGSPGEPGPS	77 / 9 AA	161
Phosphosite 8:	COL5A3	P25940	S1008	GPVGANGSPGERGPL	66 / 9 AA	172
Phosphosite 9:	S1PR5	Q9H228	S381	DTSGSTGSPGAPTAA	77 / 9 AA	42
Phosphosite 10:	CO3A1	P02461	S1039	GDRGENGSPGAPGAP	77 / 9 AA	139
Phosphosite 11:	COL1A2	P08123	T209	GAPGENGTPGQTGAR	75 / 8 AA	129
Phosphosite 12:	F8	P00451	S1533	PTETSNGSPGHLDLV	85 / 7 AA	267
Phosphosite 13:	C17orf82	Q86X59	S84	GGSPSSGSPGHPPGS	75 / 8 AA	25
Phosphosite 14:	COL22A1	Q8NFW1	S1331	GPPGKNGSPGSPGEP	77 / 9 AA	161
Phosphosite 15:	UNC80	Q8N2C7	S157	HQVENQGSPGQPCQS	100 / 6 AA	363
Phosphosite 16:	NKX1-2	Q9UD57	S274	GGGGSGGSPGPPGTG	77 / 9 AA	35
Phosphosite 17:	COL4A3	Q01955	S1249	GPPGSRGSPGAPGPP	77 / 9 AA	162
Phosphosite 18:	ADD1	P35611	S710	ADPGSDGSPGKSPSK	75 / 8 AA	81
Phosphosite 19:	CREBBP	Q92793	S2307	QMKQQIGSPGQPNPM	100 / 6 AA	265
Phosphosite 20:	NFAT2	O95644	S813	PVATHPGSPGQPPPA	100 / 6 AA	101