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:	IGSF21
Human P-Site:	T243
P-Site Sequence:	NRGGRPYTERPSRGL
UniProt:	Q96ID5
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	IGSF21	Q96ID5	T243	NRGGRPYTERPSRGL	100 / 9 AA	52
Phosphosite 1:	IGSF21	Q96ID5	Y242	ENRGGRPYTERPSRG	100 / 8 AA	52
Phosphosite 2:	MEGF11	A6BM72	T976	VHMGSPYTDVPSLST	66 / 9 AA	111
Phosphosite 3:	VWA1	Q6PCB0	T84	HVGSRPYTEFPFGQH	75 / 8 AA	47
Phosphosite 4:	VWA1	Q6PCB0	Y83	VHVGSRPYTEFPFGQ	85 / 7 AA	47
Phosphosite 5:	PLXNA3	P51805	S1521	VYKGIPYSQRPKAED	62 / 8 AA	208
Phosphosite 6:	ULK1	O75385	Y502	SLGGGRPYTPSPQVG	75 / 8 AA	113
Phosphosite 7:	ULK1	O75385	T503	LGGGRPYTPSPQVGT	75 / 8 AA	113
Phosphosite 8:	COASY	Q13057	Y244	LPELLQPYTERVEHL	83 / 6 AA	62
Phosphosite 9:	Plxna1	Q9UIW2	S1546	AYKGVPYSQRPKAAD	62 / 8 AA	211
Phosphosite 10:	GLIS3	Q8NEA6	T642	QRTQPPYTQQPSGSH	71 / 7 AA	84
Phosphosite 11:	COASY	Q13057	T245	PELLQPYTERVEHLS	83 / 6 AA	62
Phosphosite 12:	PITPNM2	Q9BZ72	T49	ILENRPYTDGPGGSG	62 / 8 AA	149
Phosphosite 13:	PITPNM1	O00562	T49	ILANRPYTDGPGGSG	62 / 8 AA	135
Phosphosite 14:	KIAA0284	Q9Y4F5	Y191	AQRQGEPYPERPKGP	75 / 8 AA	172
Phosphosite 15:	MARCH-X	Q8NA82	T364	SNAMEPATERPSAGQ	85 / 7 AA	91
Phosphosite 16:	TBL3	Q12788	T764	LEALLPYTERHFQRL	100 / 5 AA	89
Phosphosite 17:	C9orf114	Q5T280	T74	EDRGRPYTLSVALPG	100 / 5 AA	42
Phosphosite 18:	GPR84	Q9NQS5	T179	RIRGRPYTTILMGIY	100 / 5 AA	44
Phosphosite 19:	PITPNM1	O00562	Y48	EILANRPYTDGPGGS	71 / 7 AA	135
Phosphosite 20:	LRP6	O75581	Y1592	ESCPPSPYTERSYSH	100 / 5 AA	180