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:	IL-21R
Human P-Site:	S300
P-Site Sequence:	GAPFTGSSLELGPWS
UniProt:	Q9HBE5
Intern. Prot. ID:	IPI00034249

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	IL-21R	Q9HBE5	S300	GAPFTGSSLELGPWS	100 / 9 AA	59
Phosphosite 1:	NFAT2	O95644	S324	NALTTDSSLDLGDGV	75 / 8 AA	101
Phosphosite 2:	ARID2	Q68CP9	S1327	SLISNGPSLELGENG	75 / 8 AA	197
Phosphosite 3:	TCF4	P15884	S48	ASGHFTGSNVEDRSS	71 / 7 AA	71
Phosphosite 4:	SHROOM3	Q8TF72	S676	ESLRRHSSLELGRGT	100 / 6 AA	217
Phosphosite 5:	ABCA13	Q86UQ4	S2038	NANVTGSSLEALSSF	100 / 6 AA	576
Phosphosite 6:	ZNF318	Q5VUA4	S2202	GDPSKCSSLELGPLQ	100 / 6 AA	251
Phosphosite 7:	CDR2L	Q86X02	S180	AFRLHSSSLELGPRP	100 / 6 AA	53
Phosphosite 8:	DNAJB12	Q9NXW2	T306	DTFSEEYTGSSLKTV	83 / 6 AA	42
Phosphosite 9:	DNAJB12	Q9NXW2	S308	FSEEYTGSSLKTVER	83 / 6 AA	42
Phosphosite 10:	NANOS1	Q8WY41	S125	SRGRYLGSALELRAL	62 / 8 AA	30
Phosphosite 11:	NELL2	Q99435	T783	EMNVVRFTGSSWIKH	83 / 6 AA	91
Phosphosite 12:	NELL2	Q99435	S786	VVRFTGSSWIKHGTE	83 / 6 AA	91
Phosphosite 13:	LMTK2	Q8IWU2	S561	QLEEKSGSNLELDYP	71 / 7 AA	165
Phosphosite 14:	CSMD2	Q7Z408	T269	EGSSLWFTGASLPAP	83 / 6 AA	380
Phosphosite 15:	PPM1B	O75688	S93	RAAGKSGSALELSVE	71 / 7 AA	53
Phosphosite 16:	PPFIA3	O75145	S512	YSRSLPGSALELRYS	62 / 8 AA	133
Phosphosite 17:	BZRAP1	O95153	T200	APLPRPGTSLELCRK	83 / 6 AA	200
Phosphosite 18:	BZRAP1	O95153	S201	PLPRPGTSLELCRKA	83 / 6 AA	200
Phosphosite 19:	ZNF354C	Q86Y25	S162	SEDGNHTSLELGKSL	83 / 6 AA	65
Phosphosite 20:	SgK288	Q8NFD2	S585	MLLRYGASLELPTHQ	83 / 6 AA	85