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:	Y281
P-Site Sequence:	PEGLPPSYVFVSTQR
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	Y281	PEGLPPSYVFVSTQR	100 / 9 AA	99
Phosphosite 1:	COL21A1	Q96P44	S280	FPEGLPPSYVFVSTQ	100 / 8 AA	99
Phosphosite 2:	EpoR	P19235	Y504	AEPLPPSYVACS___	77 / 9 AA	55
Phosphosite 3:	BCoR	Q6W2J9	S637	ENGLPPSSIFLSPNE	66 / 9 AA	192
Phosphosite 4:	RGMB	Q6NW40	Y160	GDQNPPSYLFCGLFG	62 / 8 AA	48
Phosphosite 5:	FBN2	P35556	Y841	SCTCPPGYVFRTETE	83 / 6 AA	315
Phosphosite 6:	FMN1	Q68DA7	Y1350	EKEITPSYVFMVWYE	62 / 8 AA	158
Phosphosite 7:	RGMB	Q6NW40	S159	RGDQNPPSYLFCGLF	71 / 7 AA	48
Phosphosite 8:	CASKIN2	Q8WXE0	Y754	PGQGPPPYVFMYPQG	71 / 7 AA	127
Phosphosite 9:	CTDSP1	Q9GZU7	S211	ILDNSPASYVFHPDN	83 / 6 AA	29
Phosphosite 10:	SDCCAG1	O60524	S647	KKNFLPPSYLMMGFS	62 / 8 AA	123
Phosphosite 11:	Dicer1	Q9UPY3	Y1385	VNWLPPGYVVNQDKS	83 / 6 AA	219
Phosphosite 12:	MAGE-C1	O60732	Y974	EVDPDDSYVFVNTLD	83 / 6 AA	124
Phosphosite 13:	CLMN	Q96JQ2	S348	ETSHPPPSKVFVCDK	85 / 7 AA	112
Phosphosite 14:	VPS13B	Q7Z7G8	Y139	DPDLPPGYVQSLIRR	83 / 6 AA	449
Phosphosite 15:	TBX18	O95935	Y457	APPRTPSYVGVSSST	85 / 7 AA	65
Phosphosite 16:	RYR1	P21817	Y2714	AGALPPDYVDASYSS	83 / 6 AA	565
Phosphosite 17:	TMEM135	Q86UB9	S110	FGAALPASYVAILIE	62 / 8 AA	52
Phosphosite 18:	MPHOSPH1	Q96Q89	Y15	EGVPRPSYVFSADPI	100 / 5 AA	211
Phosphosite 19:	ARPP-21	Q9UBL0	Y592	QPAQQPSYVIASTGQ	55 / 9 AA	89
Phosphosite 20:	CTDSP1	Q9GZU7	Y212	LDNSPASYVFHPDNA	83 / 6 AA	29