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:	T679
P-Site Sequence:	LKGEPGATGSPGEPG
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	T679	LKGEPGATGSPGEPG	100 / 9 AA	99
Phosphosite 1:	COL5A1	P20908	T1374	DDGEPGQTGSPGPTG	88 / 9 AA	184
Phosphosite 2:	ZNF581	Q9P0T4	S78	SQREPGASGAPGQKK	77 / 9 AA	22
Phosphosite 3:	COL5A3	P25940	T847	ERGQPGATGQPGPKG	77 / 9 AA	172
Phosphosite 4:	COL11A2	P13942	S1218	EKGEPGESGSPGIQG	77 / 9 AA	172
Phosphosite 5:	COL7A1	Q02388	T2295	PKGEPGPTGAPGQAV	77 / 9 AA	295
Phosphosite 6:	COL7A1	Q02388	T2212	LKGEPGETGPPGRGL	77 / 9 AA	295
Phosphosite 7:	COL8A2	P25067	T432	PKGEPGFTGRPGGPG	77 / 9 AA	67
Phosphosite 8:	OTOL1	A6NHN0	T118	QKGEPGETGQPGPKG	77 / 9 AA	49
Phosphosite 9:	HSFX1	Q9UBD0	T54	AWDDPGSTGSPNLRL	75 / 8 AA	47
Phosphosite 10:	HSFX1	Q9UBD0	S53	PAWDDPGSTGSPNLR	75 / 8 AA	47
Phosphosite 11:	C19orf6	Q4ZIN3	S510	GPVSPGASGSPGPVA	87 / 8 AA	68
Phosphosite 12:	COL4A3	Q01955	T855	RSGFPGETGSPGIPG	87 / 8 AA	162
Phosphosite 13:	COL16A1	Q07092	T1095	QPGYPGATGPPGLPG	87 / 8 AA	158
Phosphosite 14:	COL4A2	P08572	T874	DRGDPGDTGAPGPVG	66 / 9 AA	168
Phosphosite 15:	C3orf33	Q6P1S2	T8	MAGQPAATGSPSADK	66 / 9 AA	34
Phosphosite 16:	COL5A2	P05997	T725	ERGEPGITGLPGEKG	77 / 9 AA	145
Phosphosite 17:	COL1A1	P02452	T478	ARGEPGPTGLPGPPG	77 / 9 AA	139
Phosphosite 18:	COL21A1	Q96P44	S681	GEPGATGSPGEPGYM	100 / 7 AA	99
Phosphosite 19:	LAMA2	P24043	T1514	ERCAPGYTGSPGNPG	77 / 9 AA	343
Phosphosite 20:	COL9A1	P20849	T744	VQGEQGATGLPGVQG	77 / 9 AA	92