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:	S92
P-Site Sequence:	NERIINVSIKKLKRK
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	S92	NERIINVSIKKLKRK	100 / 9 AA	18
Phosphosite 1:	PSMC5	P62195	S400	KDSEKNMSIKKLWK_	85 / 7 AA	46
Phosphosite 2:	TRIP13	Q15645	S41	KKEDINLSVRKLLNR	62 / 8 AA	49
Phosphosite 3:	CXXC6	Q8NFU7	S773	LPAETNVSFKKFNIE	62 / 8 AA	235
Phosphosite 4:	SLK	Q9H2G2	S689	EKKEIPVSIKKEPEV	85 / 7 AA	143
Phosphosite 5:	ASNSD1	Q9NWL6	S433	NFVEINVSMEELQKL	62 / 8 AA	72
Phosphosite 6:	ZBTB1	Q9Y2K1	S379	YYVEEDVSIKKSGRK	83 / 6 AA	82
Phosphosite 7:	SCARB2	Q14108	Y388	KRFQINIYVKKLDDF	62 / 8 AA	54
Phosphosite 8:	BRIP1	Q9BX63	S895	HQKVLNVSIKDRTNI	71 / 7 AA	141
Phosphosite 9:	THADA	Q6YHU6	S1130	LNRCPNVSLQKLPEQ	71 / 7 AA	220
Phosphosite 10:	ERC1	Q8IUD2	S308	TLNARDESIKKLLEM	71 / 7 AA	128
Phosphosite 11:	ERC2	O15083	S304	TLNARDESIKKLLEM	71 / 7 AA	111
Phosphosite 12:	TAF1C	Q15572	S146	TKKKTVVSVKKLLQD	83 / 6 AA	95
Phosphosite 13:	MX1	P20591	S488	RLAFTDVSIKNFEEF	44 / 9 AA	76
Phosphosite 14:	SERPINB5	P36952	S135	TKGQINNSIKDLTDG	75 / 8 AA	42
Phosphosite 15:	AKAP12	Q02952	S806	GKEESWVSIKKFIPG	71 / 7 AA	191
Phosphosite 16:	CTDSPL	O15194	S33	KASQCNVSLKKQRSR	71 / 7 AA
Phosphosite 17:	DEPDC5	O75140	T273	EWTSLLVTIKKLFIQ	83 / 6 AA	178
Phosphosite 18:	ZCCHC4	Q9H5U6	T152	VLGNVSITQLRRPSQ	71 / 7 AA	59
Phosphosite 19:	EIF4G3	O43432	S719	PRKIITVSVKEDVHL	71 / 7 AA	177
Phosphosite 20:	THUMPD3	Q9BV44	S138	KVWKINASFKKKKAK	71 / 7 AA	57