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:	GPC4
Human P-Site:	S355
P-Site Sequence:	PAGRISRSISESAFS
UniProt:	O75487
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	GPC4	O75487	S355	PAGRISRSISESAFS	100 / 9 AA	62
Phosphosite 1:	GPC4	O75487	S353	PLPAGRISRSISESA	100 / 7 AA	62
Phosphosite 2:	WDR62	O43379	S1226	SRARISRSISLGDSE	100 / 7 AA	166
Phosphosite 3:	WDR62	O43379	S1224	ASSRARISRSISLGD	100 / 7 AA	166
Phosphosite 4:	GPC4	O75487	S357	GRISRSISESAFSAR	100 / 7 AA	62
Phosphosite 5:	CCDC134	Q9H6E4	S225	KGPRISRSQSEL___	87 / 8 AA	27
Phosphosite 6:	USP54	Q70EL1	S1418	NLRRISRSLSGTVVS	66 / 9 AA	187
Phosphosite 7:	SLC6A15	Q9H2J7	S217	EALNISSSISESGGL	87 / 8 AA	82
Phosphosite 8:	MAPKBP1	O60336	S1259	TSSMAKISRSISVGE	85 / 7 AA	164
Phosphosite 9:	MAPKBP1	O60336	S1261	SMAKISRSISVGENL	85 / 7 AA	164
Phosphosite 10:	C11orf63	Q6NUN7	S621	NQVKISRSNSEGYLF	66 / 9 AA	89
Phosphosite 11:	AHCYL2	Q96HN2	S147	GRRSLSRSISQSSTD	75 / 8 AA	67
Phosphosite 12:	AHCYL1	O43865	S66	GRRSLSRSISQSSTD	75 / 8 AA	59
Phosphosite 13:	SFRP2	Q96HF1	S289	EFKRISRSIRKLQC_	100 / 6 AA	33
Phosphosite 14:	SFRP2	Q96HF1	S287	QREFKRISRSIRKLQ	100 / 6 AA	33
Phosphosite 15:	USP54	Q70EL1	S1416	AENLRRISRSLSGTV	85 / 7 AA	187
Phosphosite 16:	SSH2	Q76I76	S38	RSQPRSISESFLTVK	85 / 7 AA	158
Phosphosite 17:	RGPR-p117	Q96JE7	S866	PLAARPRSISESSAS	85 / 7 AA	117
Phosphosite 18:	ITIH2	P19823	S611	AKRRITRSILQMSLD	62 / 8 AA	106
Phosphosite 19:	FDCSP	Q8NFU4	S30	DQEREKRSISDSDEL	66 / 9 AA	10
Phosphosite 20:	SSH2	Q76I76	S36	ECRSQPRSISESFLT	85 / 7 AA	158