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:	COL4A4
Human P-Site:	S1283
P-Site Sequence:	GPPGLPGSVDLLRGE
UniProt:	P53420
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	COL4A4	P53420	S1283	GPPGLPGSVDLLRGE	100 / 9 AA	164
Phosphosite 1:	SCUBE1	Q8IWY4	S31	GGSGLPGSVDVDECS	87 / 8 AA	108
Phosphosite 2:	COL9A3	Q14050	S224	GPAGLPGSVGLQGPR	87 / 8 AA	64
Phosphosite 3:	ECM2	O94769	S486	IPQGLPGSIEELYLE	66 / 9 AA	80
Phosphosite 4:	CNGA1	P29973	S633	KVTRMEGSVDLLQTR	75 / 8 AA	79
Phosphosite 5:	PFAS	O15067	S83	ESWLLPGSNDLLLEV	87 / 8 AA	145
Phosphosite 6:	SALL2	Q9Y467	S309	PSPALPGSTDQLIAS	66 / 9 AA	105
Phosphosite 7:	XYLT2	Q9H1B5	S590	FEPRGLPSSVHLYFY	75 / 8 AA	97
Phosphosite 8:	XYLT2	Q9H1B5	S591	EPRGLPSSVHLYFYD	75 / 8 AA	97
Phosphosite 9:	UBE1L	P41226	S744	QMHGLPGSQDWTALR	75 / 8 AA	112
Phosphosite 10:	STYXL1	Q9Y6J8	S65	NEYLLPESVDLECVK	85 / 7 AA	36
Phosphosite 11:	COL15A1	P39059	S1131	GQPGLPGSRNLVTAF	66 / 9 AA	142
Phosphosite 12:	COL11A2	P13942	S1373	GLRGLPGSVGQQGRP	100 / 6 AA	172
Phosphosite 13:	ZNF273	Q14593	S31	KTPGLPGSLEMGPLT	62 / 8 AA	65
Phosphosite 14:	TBRG1	Q3YBR2	S365	NDPLLPGSLDLPELQ	85 / 7 AA	45
Phosphosite 15:	COL4A1	P02462	S792	GPPGLPGSVGSPGVP	85 / 7 AA	161
Phosphosite 16:	CGN	Q9P2M7	S304	QEAAPPGSVDHMKAT	71 / 7 AA	136
Phosphosite 17:	COL8A2	P25067	S365	GPPGLPGSAGLPGRR	75 / 8 AA	67
Phosphosite 18:	VAV2	P52735	S54	LHNLSPGSIDLKDIN	83 / 6 AA	101
Phosphosite 19:	FILIP1	Q7Z7B0	S592	KSSELSCSVDLLKKR	66 / 9 AA	138
Phosphosite 20:	GCN1L1	Q92616	S1517	SWRTKAGSVELLGAM	71 / 7 AA	293