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:	S134
P-Site Sequence:	PACPEGSSAANGTME
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	S134	PACPEGSSAANGTME	100 / 9 AA	29
Phosphosite 1:	TRIM28	Q13263	S612	VVAPEGTSAPGGGPG	66 / 9 AA	89
Phosphosite 2:	CEBPE	Q15744	S130	EPRGPEGSRAASRGS	75 / 8 AA	31
Phosphosite 3:	GORASP2	Q9H8Y8	S376	PLVPESSSAASSGEL	66 / 9 AA	47
Phosphosite 4:	GORASP2	Q9H8Y8	S375	FPLVPESSSAASSGE	75 / 8 AA	47
Phosphosite 5:	TRIM37	O94972	S893	PVLPEGASAAPEEGM	85 / 7 AA	108
Phosphosite 6:	ARHGEF5	Q12774	S1051	SILPEGSSDSRGPAV	66 / 9 AA	177
Phosphosite 7:	GORASP2	Q9H8Y8	S374	SFPLVPESSSAASSG	85 / 7 AA	47
Phosphosite 8:	ZNF444	Q8N0Y2	S109	AASPDGSSATRVPQD	71 / 7 AA	35
Phosphosite 9:	HKR2	P10073	S184	ACEPEGSSERSGLSG	66 / 9 AA	55
Phosphosite 10:	ZNF444	Q8N0Y2	S108	PAASPDGSSATRVPQ	71 / 7 AA	35
Phosphosite 11:	MEOX1	P50221	S169	RGKPEGSSKARKERT	85 / 7 AA	28
Phosphosite 12:	TNIP1	Q15025	S139	EQNSPESSSHANAMA	75 / 8 AA	72
Phosphosite 13:	Hoxd10	P28358	S173	YNNSPEGSSTVMLQL	71 / 7 AA	38
Phosphosite 14:	SPANXN2	Q5MJ10	S161	LDPPEGSSQEDEDLD	62 / 8 AA	20
Phosphosite 15:	ATCAY	Q86WG3	S147	DGTTEDGSAANGRLW	75 / 8 AA	42
Phosphosite 16:	FAM63A	Q8N5J2	S75	SPLPEASSAPPGPTL	66 / 9 AA	52
Phosphosite 17:	ANKRD30A	Q9BXX3	T276	QNTNPEGTSAGTPDE	83 / 6 AA	159
Phosphosite 18:	MRPL23	Q16540	S121	KDESPEGSAADDLYS	62 / 8 AA	18
Phosphosite 19:	SELH	Q8IZQ5	S89	TLLRPDGSSAELWTG	83 / 6 AA	13
Phosphosite 20:	SELH	Q8IZQ5	S90	LLRPDGSSAELWTGI	83 / 6 AA	13