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:	S339
P-Site Sequence:	PRPFIHASSSKSLHL
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	S339	PRPFIHASSSKSLHL	100 / 9 AA	42
Phosphosite 1:	PRR21	Q8WXC7	S325	PRPFVHASSSTSLHP	77 / 9 AA	42
Phosphosite 2:	ELYS	Q8WYP5	S1138	CSEFIQQSSMKSPLY	66 / 9 AA	252
Phosphosite 3:	FLJ32110	A4D1E1	S323	DSIGIHASFSKSNIH	87 / 8 AA	153
Phosphosite 4:	RGAG4	Q5HYW3	S478	EPTFVHASSQTSGPT	66 / 9 AA	65
Phosphosite 5:	KIAA0141	Q14154	S201	DFGFLHASSSIESEA	85 / 7 AA	56
Phosphosite 6:	PRR21	Q8WXC7	S129	PRPFVHASSPTALPP	55 / 9 AA	42
Phosphosite 7:	PRR21	Q8WXC7	S341	PFIHASSSKSLHLRL	100 / 7 AA	42
Phosphosite 8:	COX-2	P35354	S583	TVTINASSSRSGLDD	75 / 8 AA	69
Phosphosite 9:	COX-2	P35354	S582	KTVTINASSSRSGLD	75 / 8 AA	69
Phosphosite 10:	ZNF559	Q9BR84	S394	GKAFINSSSFKSHMQ	66 / 9 AA	62
Phosphosite 11:	PRR21	Q8WXC7	S269	PRPFLHASSPTALRP	55 / 9 AA	42
Phosphosite 12:	PRR21	Q8WXC7	S157	PRPFLHASSPTALPP	55 / 9 AA	42
Phosphosite 13:	PRR21	Q8WXC7	S326	RPFVHASSSTSLHPR	75 / 8 AA	42
Phosphosite 14:	ZNF234	Q14588	S273	GRAFIHASHLQEHQR	100 / 5 AA	81
Phosphosite 15:	ACBD5	Q5T8D3	S256	QNDIHASSSLNGRST	100 / 6 AA	60
Phosphosite 16:	LRRC53	A6NM62	S528	QRHFITSSSSKPCEP	75 / 8 AA	141
Phosphosite 17:	ZNF69	Q9UC07	S401	GKAFIHSSSLRYHER	83 / 6 AA	66
Phosphosite 18:	ZNF69	Q9UC07	S400	CGKAFIHSSSLRYHE	83 / 6 AA	66
Phosphosite 19:	BTBD11	A6QL63	S1097	RIQSIHLSSSKGSVV	85 / 7 AA	121
Phosphosite 20:	ZNF256	Q9Y2P7	S364	GKSFIHSSSLITHQR	83 / 6 AA	72