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:	RSPO1
Human P-Site:	Y83
P-Site Sequence:	LPSCPPGYFDARNPD
UniProt:	Q2MKA7
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	RSPO1	Q2MKA7	Y83	LPSCPPGYFDARNPD	100 / 9 AA	29
Phosphosite 1:	R-spondin	Q2I0M5	Y77	LHDCPPGYFGIRGQE	77 / 9 AA	26
Phosphosite 2:	FBN1	P35555	Y2678	LCGCPPGYFRIGQGH	100 / 6 AA	312
Phosphosite 3:	TNFRSF6B	O95407	T157	CQPCPPGTFSASSSS	66 / 9 AA	33
Phosphosite 4:	NOTCH3	Q9UM47	Y1197	RCTCPPGYTGLRCEA	66 / 9 AA	244
Phosphosite 5:	CKMT1A	P12532	Y153	ASKIRSGYFDERYVL	55 / 9 AA	47
Phosphosite 6:	ANXA7	P20073	Y260	ALFMPPTYYDAWSLR	62 / 8 AA	53
Phosphosite 7:	ANXA7	P20073	Y261	LFMPPTYYDAWSLRK	62 / 8 AA	53
Phosphosite 8:	FBN2	P35556	Y2725	LCGCPPGYYRVGQGH	83 / 6 AA	315
Phosphosite 9:	NRK1	Q9NWW6	Y142	QPPDSPGYFDGHVWP	62 / 8 AA	23
Phosphosite 10:	FBN3	Q75N90	Y2640	LCGCPQGYFRAGQGH	75 / 8 AA	300
Phosphosite 11:	HSPG2	P98160	Y1536	ECRCPPGYIGLSCQD	71 / 7 AA	469
Phosphosite 12:	SERHL2	Q9H4I8	Y249	LIKAVHGYFDSRQNY	71 / 7 AA	35
Phosphosite 13:	FBLN5	Q9UBX5	Y277	FCSCPPGYILLDDNR	83 / 6 AA	50
Phosphosite 14:	ADI1	Q9BV57	Y104	YILDGSGYFDVRDKE	71 / 7 AA	22
Phosphosite 15:	LAMA3	Q16787	Y1773	CERCAPGYFGNPQKF	71 / 7 AA	367
Phosphosite 16:	SERHL2	Q9H4I8	S252	AVHGYFDSRQNYSEK	83 / 6 AA	35
Phosphosite 17:	NDFIP1	Q9BT67	Y173	FSTYFPGYFDGQYWL	71 / 7 AA	25
Phosphosite 18:	HMCN1	Q96RW7	Y5461	QCICPPGYQLTHNGK	100 / 5 AA	613
Phosphosite 19:	DDX3Y	O15523	S85	RGKPGYFSERGSGSR	71 / 7 AA	73
Phosphosite 20:	FBN1	P35555	Y2004	RCICPPGYSLQNEKC	100 / 5 AA	312