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:	T103
P-Site Sequence:	LKRKPPSTNAGRRQK
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	T103	LKRKPPSTNAGRRQK	100 / 9 AA	18
Phosphosite 1:	IL21	Q9HBE4	S102	KLKRKPPSTNAGRRQ	100 / 8 AA	18
Phosphosite 2:	FAM110A	Q9BQ89	S149	PRPPPSTSAVRRVDV	75 / 8 AA	31
Phosphosite 3:	FAM110A	Q9BQ89	T148	PPRPPPSTSAVRRVD	75 / 8 AA	31
Phosphosite 4:	PTHR	Q03431	T392	LATKLRETNAGRCDT	66 / 9 AA	66
Phosphosite 5:	NPAT	Q14207	S1111	SSTLKPPSNNAIKRE	85 / 7 AA	154
Phosphosite 6:	MGC15523	Q9HBR0	S524	PEENKPPSRHAGGKA	75 / 8 AA	120
Phosphosite 7:	HMCN1	Q96RW7	S4790	TCDNPPPSNGGRACG	55 / 9 AA	613
Phosphosite 8:	MEI1	Q5TIA1	T1249	LEGLPPSTSSGQPPL	62 / 8 AA	141
Phosphosite 9:	ZNF512	Q96ME7	T560	QKVKPPKTNHKRGRK	66 / 9 AA	65
Phosphosite 10:	ASH1L	Q9NR48	S1748	ASAPPSSSPGRSHSK	62 / 8 AA	333
Phosphosite 11:	ASH1L	Q9NR48	S1747	TASAPPSSSPGRSHS	62 / 8 AA	333
Phosphosite 12:	Rab13	P51153	S186	GNGNKPPSTDLKTCD	83 / 6 AA	23
Phosphosite 13:	BSN	Q9UPA5	S38	PGAGKPPSAPAGGGQ	75 / 8 AA	416
Phosphosite 14:	Rab13	P51153	T187	NGNKPPSTDLKTCDK	83 / 6 AA	23
Phosphosite 15:	CECR2	Q9BXF3	T1124	NAATPPSTDPGLTGG	71 / 7 AA	164
Phosphosite 16:	MEI1	Q5TIA1	S1250	EGLPPSTSSGQPPLQ	62 / 8 AA	141
Phosphosite 17:	CECR2	Q9BXF3	S1123	QNAATPPSTDPGLTG	62 / 8 AA	164
Phosphosite 18:	AML1	Q01196	T406	PRILPPCTNASTGSA	71 / 7 AA	49
Phosphosite 19:	CEP192	Q8TEP8	T1674	PMTKPPSTKVEIRNK	62 / 8 AA	213
Phosphosite 20:	NFAT5	O94916	T528	SVGIYVVTNAGRSHD	100 / 5 AA	166