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:	Y257
P-Site Sequence:	SPKKIKGYEVTSKVD
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	Y257	SPKKIKGYEVTSKVD	100 / 9 AA	99
Phosphosite 1:	CACNB2	Q08289	Y294	VGPSLKGYEVTDMMQ	85 / 7 AA	74
Phosphosite 2:	CACNB1	Q02641	Y242	VGPSLKGYEVTDMMQ	85 / 7 AA	66
Phosphosite 3:	CACNB3	P54284	Y190	VGPSLKGYEVTDMMQ	85 / 7 AA	55
Phosphosite 4:	CACNB4	O00305	Y232	VGPSLKGYEVTDMMQ	85 / 7 AA	58
Phosphosite 5:	FRMD6	Q96NE9	Y94	EASKVRQYEVTWGID	55 / 9 AA	72
Phosphosite 6:	LTBP2	Q14767	Y1040	RCSCEQGYEVTSDEK	85 / 7 AA	195
Phosphosite 7:	EIF4A2	Q14240	Y71	IIPCIKGYDVIAQAQ	62 / 8 AA	46
Phosphosite 8:	EIF4A1	P60842	Y70	ILPCIKGYDVIAQAQ	62 / 8 AA	46
Phosphosite 9:	ME3	Q16798	Y51	VPLKKRGYDVTRNPH	55 / 9 AA	67
Phosphosite 10:	CNTN4	Q8IWV2	Y836	NRGRIQGYEVKYWRH	71 / 7 AA	113
Phosphosite 11:	CKAP2L	Q8IYA6	Y321	NETKIRSYPVTEQRV	62 / 8 AA	84
Phosphosite 12:	TLR7	Q9NYK1	Y881	CKAKIKGYQRLISPD	83 / 6 AA	121
Phosphosite 13:	POT1	Q9NUX5	Y610	LECFIKSYNVTNGTD	62 / 8 AA	71
Phosphosite 14:	ALDH6A1	Q02252	Y393	RKIKVKGYENGNFVG	83 / 6 AA	58
Phosphosite 15:	SYNE1	Q8NF91	Y5791	LAQKIKGYQEQIASL	83 / 6 AA	1011
Phosphosite 16:	AREG	P15514	T52	SADGFEVTSRSEMSS	83 / 6 AA	28
Phosphosite 17:	ST6GALNAC1	Q9NSC7	Y400	SGALIKGYEQDVGTR	100 / 5 AA	69
Phosphosite 18:	TAF1	P21675	Y1823	SFSSIGGYEVSEEEE	71 / 7 AA	213
Phosphosite 19:	TTN	Q8WZ42	Y14549	GGSRIKGYIVERCPR	71 / 7 AA	3816
Phosphosite 20:	mGluR1	Q13255	Y330	RDEVIEGYEVEANGG	83 / 6 AA	132