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:	PRR21
Human P-Site:	S157
P-Site Sequence:	PRPFLHASSPTALPP
UniProt:	Q8WXC7
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	PRR21	Q8WXC7	S157	PRPFLHASSPTALPP	100 / 9 AA	42
Phosphosite 1:	PRR21	Q8WXC7	S269	PRPFLHASSPTALRP	100 / 9 AA	42
Phosphosite 2:	PRR21	Q8WXC7	S129	PRPFVHASSPTALPP	88 / 9 AA	42
Phosphosite 3:	POU2F3	Q9UKI9	S401	PGSGLHASSPTASQN	100 / 8 AA	47
Phosphosite 4:	POU2F3	Q9UKI9	S402	GSGLHASSPTASQNN	100 / 8 AA	47
Phosphosite 5:	PRR21	Q8WXC7	S270	RPFLHASSPTALRPC	100 / 8 AA	42
Phosphosite 6:	PRR21	Q8WXC7	S158	RPFLHASSPTALPPC	100 / 8 AA	42
Phosphosite 7:	PRR21	Q8WXC7	S130	RPFVHASSPTALPPC	87 / 8 AA	42
Phosphosite 8:	PRR21	Q8WXC7	S102	RPFVHASSPTALRPC	87 / 8 AA	42
Phosphosite 9:	C20orf151	Q8NC74	S270	LDSFLRASRPSAMTH	66 / 9 AA	71
Phosphosite 10:	FLJ21986	A4D0V7	S318	FETFLRASSPQQAFD	85 / 7 AA	117
Phosphosite 11:	KIAA0141	Q14154	S201	DFGFLHASSSIESEA	66 / 9 AA	56
Phosphosite 12:	RGAG4	Q5HYW3	S478	EPTFVHASSQTSGPT	66 / 9 AA	65
Phosphosite 13:	PRR21	Q8WXC7	S325	PRPFVHASSSTSLHP	66 / 9 AA	42
Phosphosite 14:	ZFYVE28	Q9HCC9	S670	ARELHAGSPSAHEAP	75 / 8 AA	96
Phosphosite 15:	C2orf84	Q86W67	S104	KARLHASSPYFTFTS	100 / 6 AA	24
Phosphosite 16:	C2orf84	Q86W67	S103	EKARLHASSPYFTFT	100 / 6 AA	24
Phosphosite 17:	MAPRE2	Q15555	S200	KKSHHANSPTAGAAK	85 / 7 AA	37
Phosphosite 18:	PCDH7	O60245	S1011	TVQLHPQSPTAGKKH	75 / 8 AA	116
Phosphosite 19:	HEYL	Q9NQ87	S279	IAPLLQSSSPTPPGP	55 / 9 AA	35
Phosphosite 20:	C1orf182	Q96A04	S38	SYINLQASSPPATFL	75 / 8 AA	14