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:	S324
P-Site Sequence:	YSCHPPRSPAKRLQL
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	S324	YSCHPPRSPAKRLQL	100 / 9 AA	59
Phosphosite 1:	NBEA	Q8NFP9	S2564	IEPHPPRSSAMHLCF	66 / 9 AA	328
Phosphosite 2:	LRFN4	Q6PJG9	S575	PKAHPPRSPPPRPQR	77 / 9 AA	67
Phosphosite 3:	CHCHD5	Q9BSY4	S98	EQVQPPRSPATVEAQ	75 / 8 AA	12
Phosphosite 4:	ZFHX4	Q86UP3	S1645	PAHHPPQSPAQIQMQ	75 / 8 AA	394
Phosphosite 5:	KIAA2026	Q5HYC2	S1137	PLQHPLRSPTKFINS	75 / 8 AA	134
Phosphosite 6:	DNAJC5G	Q8N7S2	S173	VQSQPPRSGAKCDFR	75 / 8 AA	21
Phosphosite 7:	Kv2.1	Q14721	S737	SAKTPPRSPEKHTAI	75 / 8 AA	96
Phosphosite 8:	TP53BP1	Q12888	S1678	ITSEEERSPAKRGRK	100 / 6 AA	214
Phosphosite 9:	Elk-1	P19419	S389	LSPIAPRSPAKLSFQ	85 / 7 AA	45
Phosphosite 10:	BCL2L12	Q9HB09	S121	PVPTPPRSPAQEEPT	85 / 7 AA	37
Phosphosite 11:	PTPRJ	Q12913	S14	EARLPPRSPGLRWAL	75 / 8 AA	146
Phosphosite 12:	KIAA1602	Q9HCH0	T789	LCPQVPRTPAKVPTS	62 / 8 AA	139
Phosphosite 13:	VGLL4	Q14135	S52	RTGPPPISPSKRKFS	75 / 8 AA	31
Phosphosite 14:	PHRF1	Q9P1Y6	T333	QRPLTPRTPARRKRK	71 / 7 AA	179
Phosphosite 15:	C6orf132	Q5T0Z8	S279	TRASPPRSPAEPKGS	85 / 7 AA	124
Phosphosite 16:	TACC2	O95359	S2321	TPASPPRSPAEPNDI	85 / 7 AA	309
Phosphosite 17:	PRC1	O43663	T470	LYGSAPRTPSKRRGL	71 / 7 AA	72
Phosphosite 18:	KIAA1267	Q7Z3B3	S820	ATHHPPHSPLVRQLS	66 / 9 AA	121
Phosphosite 19:	D430041B17	A6NL88	S434	HLLSPPRSPALPPDP	100 / 6 AA	56
Phosphosite 20:	PRC1	O43663	S472	GSAPRTPSKRRGLAP	71 / 7 AA	72