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:	S20
P-Site Sequence:	SWTHLTISSRGIKGK
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	S20	SWTHLTISSRGIKGK	100 / 9 AA	29
Phosphosite 1:	RICH2	Q17R89	S264	LEEHLTISGREIAFP	77 / 9 AA	89
Phosphosite 2:	IARS	P41252	T507	RESVDHLTIPSRCGK	85 / 7 AA	144
Phosphosite 3:	RICH2	Q17R89	T262	KPLEEHLTISGREIA	85 / 7 AA	89
Phosphosite 4:	C10orf112	Q5VYJ5	S287	IRKHLNISSRQPFQI	85 / 7 AA	164
Phosphosite 5:	Wnk2	Q9Y3S1	S2017	STGHLADSSRGPPAK	75 / 8 AA	243
Phosphosite 6:	Bcl-11A	Q9H165	S116	DDDCLSTSSRGICPK	66 / 9 AA	91
Phosphosite 7:	DNAJC11	Q9NVH1	S246	TNCALQFSSRGIRPG	75 / 8 AA	63
Phosphosite 8:	FAM43A	Q8N2R8	S114	TKMKLTVSAQGIRMV	62 / 8 AA	46
Phosphosite 9:	CD163	Q86VB7	S1084	QRQRLAVSSRGENLV	62 / 8 AA	125
Phosphosite 10:	BXDC2	Q8TDN6	S66	KERILIFSSRGINFR	75 / 8 AA	41
Phosphosite 11:	PARS2	Q7L3T8	T417	LDDRTHLTIGNRLKD	71 / 7 AA	53
Phosphosite 12:	HIST1H2BA	Q96A08	S93	SKRSTISSREIQTAV	85 / 7 AA	14
Phosphosite 13:	CD163	Q86VB7	S1085	RQRLAVSSRGENLVH	71 / 7 AA	125
Phosphosite 14:	LPLUNC3	P59826	S152	SRVALAVSSRGTPIL	62 / 8 AA	50
Phosphosite 15:	CEP170L	Q96L14	T108	AEPPDHLTITRRRTW	71 / 7 AA	33
Phosphosite 16:	CEP170	Q5SW79	T1399	AEPPDHLTITRRRTW	71 / 7 AA	175
Phosphosite 17:	LPLUNC3	P59826	S153	RVALAVSSRGTPILI	62 / 8 AA	50
Phosphosite 18:	HIST1H2BA	Q96A08	S92	YSKRSTISSREIQTA	85 / 7 AA	14
Phosphosite 19:	CEP170L	Q96L14	T110	PPDHLTITRRRTWSR	71 / 7 AA	33
Phosphosite 20:	CEP170	Q5SW79	T1401	PPDHLTITRRRTWSR	71 / 7 AA	175