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:	S350
P-Site Sequence:	SDGVPKPSFWPTAQN
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	S350	SDGVPKPSFWPTAQN	100 / 9 AA	59
Phosphosite 1:	CUL7	Q14999	T972	EILGPKPTFWPVFRE	85 / 7 AA	191
Phosphosite 2:	PARC	Q8IWT3	T1301	EVLGPKPTFWPLFRE	85 / 7 AA	281
Phosphosite 3:	TM7SF4	Q9H295	T282	RKYVIIPTFWPTPKE	66 / 9 AA	53
Phosphosite 4:	TNF-R1	P19438	S272	KPLAPNPSFSPTPGF	66 / 9 AA	50
Phosphosite 5:	ZFC3H1	O60293	S132	SESSPRPSFWERSHL	83 / 6 AA	226
Phosphosite 6:	AHNAK2	Q8IVF2	S4710	HFKVPKVSFSSTKTP	66 / 9 AA	617
Phosphosite 7:	UBE4B	O95155	S281	SSPAPTPSFWSSVPV	55 / 9 AA	146
Phosphosite 8:	MAP1S	Q66K74	S274	GGSNPKSSFWKLVRH	83 / 6 AA	112
Phosphosite 9:	MAP1S	Q66K74	S273	NGGSNPKSSFWKLVR	83 / 6 AA	112
Phosphosite 10:	IL-21R	Q9HBE5	T354	PKPSFWPTAQNSGGS	100 / 5 AA	59
Phosphosite 11:	UBE4B	O95155	T279	YESSPAPTPSFWSSV	71 / 7 AA	146
Phosphosite 12:	STK24	Q9Y6E0	S272	ACLNKEPSFRPTAKE	83 / 6 AA	49
Phosphosite 13:	MST4	Q9P289	S260	ACLNKDPSFRPTAKE	83 / 6 AA	47
Phosphosite 14:	FRMPD1	Q5SYB0	S142	TSGVPKSSFLTEEKR	71 / 7 AA	173
Phosphosite 15:	FRMPD1	Q5SYB0	S141	CTSGVPKSSFLTEEK	71 / 7 AA	173
Phosphosite 16:	RP1	P56715	S1645	KADIIKPSFFPGSTR	62 / 8 AA	241
Phosphosite 17:	ZBTB46	Q86UZ6	S298	RASSPVPSFLPTSGW	75 / 8 AA	64
Phosphosite 18:	PROX2	Q3B8N5	S213	HQESEKPSFLPSGAP	71 / 7 AA	66
Phosphosite 19:	SENP3	Q9H4L4	S69	RLPVPRPSFDASASE	83 / 6 AA	65
Phosphosite 20:	CENTB1	Q15027	S547	PPVPPKPSIRPRPGS	71 / 7 AA	82