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:	S642
P-Site Sequence:	GMPGLMGSNGSPGQP
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	S642	GMPGLMGSNGSPGQP	100 / 9 AA	99
Phosphosite 1:	COL27A1	Q8IZC6	S845	GMKGLMGSVGEPGLK	77 / 9 AA	187
Phosphosite 2:	COL4A3	Q01955	S512	GAAGLKGSPGSPGNT	77 / 9 AA	162
Phosphosite 3:	WWP1	Q9H0M0	S867	GFAELMGSNGPQKFC	75 / 8 AA	105
Phosphosite 4:	ITCH	Q96J02	S848	GFADLMGSNGPQKFC	66 / 9 AA	103
Phosphosite 5:	FRAP1	P42345	S2177	RKLTLMGSNGHEFVF	100 / 6 AA	289
Phosphosite 6:	COL1A1	P02452	S543	GAKGLTGSPGSPGPD	77 / 9 AA	139
Phosphosite 7:	COL11A2	P13942	S439	GRAGLPGSDGAPGPP	66 / 9 AA	172
Phosphosite 8:	ZNF462	Q96JM2	S419	SAEQLMGSDGNKLLE	71 / 7 AA	285
Phosphosite 9:	Cezanne	Q6GQQ9	S527	NMGGLMHSKGSKPGG	75 / 8 AA	93
Phosphosite 10:	MECT1	Q6UUV9	S540	AMMGLTGSHGSLPDS	75 / 8 AA	67
Phosphosite 11:	COL21A1	Q96P44	S582	GKDGLMGSPGFKGEA	85 / 7 AA	99
Phosphosite 12:	SYNRG	Q9UMZ2	S244	KYPSLMASNGVAVDG	83 / 6 AA	141
Phosphosite 13:	ANK2	Q01484	S2670	PSSMDSNSSPEEVQF	71 / 7 AA	430
Phosphosite 14:	COL21A1	Q96P44	S645	GLMGSNGSPGQPGTP	100 / 6 AA	99
Phosphosite 15:	FRMD4B	Q9Y2L6	S350	KSQFIMASNGSLISS	71 / 7 AA	112
Phosphosite 16:	CO3A1	P02461	S1395	KALKLMGSNEGEFKA	100 / 5 AA	139
Phosphosite 17:	ANK2	Q01484	S2668	PLPSSMDSNSSPEEV	71 / 7 AA	430
Phosphosite 18:	USP43	Q70EL4	S966	SFQMGSKSSPPSPYM	71 / 7 AA	123
Phosphosite 19:	F11	P03951	S352	KCYLKLSSNGSPTKI	71 / 7 AA	70
Phosphosite 20:	NP60	Q49A26	S280	LGLGLMGSGIVSNLL	100 / 5 AA	61