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:	IL21
Human P-Site:	S120
P-Site Sequence:	LTCPSCDSYEKKPPK
UniProt:	Q9HBE4
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	IL21	Q9HBE4	S120	LTCPSCDSYEKKPPK	100 / 9 AA	18
Phosphosite 1:	IL21	Q9HBE4	Y121	TCPSCDSYEKKPPKE	100 / 8 AA	18
Phosphosite 2:	ITPR2	Q14571	Y256	KFLTCDEYEKKQHIF	75 / 8 AA	308
Phosphosite 3:	IL21	Q9HBE4	S117	KHRLTCPSCDSYEKK	100 / 6 AA	18
Phosphosite 4:	TMC3	Q7Z5M5	Y898	VINECDSYKKKHLNV	85 / 7 AA	126
Phosphosite 5:	HNRNPR	O43390	Y229	AVKLCDSYEIRPGKH	71 / 7 AA	71
Phosphosite 6:	SMURF1	Q9HCE7	S736	IDIPPYESYEKLYEK	62 / 8 AA	86
Phosphosite 7:	SMURF2	Q9HAU4	S727	IDIPPYESYEKLYEK	62 / 8 AA	86
Phosphosite 8:	TAS2R40	P59535	S180	IPIPSSNSTEKKYFS	66 / 9 AA	37
Phosphosite 9:	VWA5B1	Q5TIE3	S1119	PRHPSCDSFSLEPLA	83 / 6 AA	134
Phosphosite 10:	HNRNPR	O43390	S228	EAVKLCDSYEIRPGK	71 / 7 AA	71
Phosphosite 11:	VWA5B1	Q5TIE3	S1116	SSPPRHPSCDSFSLE	83 / 6 AA	134
Phosphosite 12:	HERC2P3	Q9BVR0	S555	LIGPSCDSVEEDMNA	85 / 7 AA	129
Phosphosite 13:	KIAA0317	O15033	S801	LCLPTYDSYEEVHRM	71 / 7 AA	94
Phosphosite 14:	MLL	Q03164	S458	FSAPSCGSSEKSSAA	75 / 8 AA	432
Phosphosite 15:	KCNU1	A8MYU2	S133	DPVGSCSSYEDKTIP	75 / 8 AA	130
Phosphosite 16:	KCNU1	A8MYU2	Y134	PVGSCSSYEDKTIPI	75 / 8 AA	130
Phosphosite 17:	ABCB1	P08183	S377	DNKPSIDSYSKSGHK	75 / 8 AA	141
Phosphosite 18:	UBLE1A	Q9UBE0	S259	DKGRDPSSDTYEEDS	71 / 7 AA	38
Phosphosite 19:	FSIP2	Q5CZC0	Y1900	EGILCDIYEKTLFQN	83 / 6 AA	370
Phosphosite 20:	PDCD11	Q14690	Y119	VTEICDAYTKKLNEQ	71 / 7 AA	209