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:	C21orf25
Human P-Site:	S439
P-Site Sequence:	GRASPLSSDSPVKTP
UniProt:	Q9Y426
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	C21orf25	Q9Y426	S439	GRASPLSSDSPVKTP	100 / 9 AA	76
Phosphosite 1:	C21orf25	Q9Y426	S438	VGRASPLSSDSPVKT	100 / 8 AA	76
Phosphosite 2:	C21orf25	Q9Y426	S441	ASPLSSDSPVKTPIK	100 / 7 AA	76
Phosphosite 3:	USP17L1P	Q7RTZ2	S45	PEKSPLSSETRVDLC	66 / 9 AA	60
Phosphosite 4:	USP17L8	P0C7I0	S45	PEKSPLSSETRVDLC	66 / 9 AA	60
Phosphosite 5:	USP17L4	A6NCW7	S45	PEKSPLSSETRVDLC	66 / 9 AA	60
Phosphosite 6:	USP17L3	A6NCW0	S45	PEKSPLSSETRVDLC	66 / 9 AA	60
Phosphosite 7:	PIWIL4	Q7Z3Z4	S568	SIKKYLSSDCPVPSQ	85 / 7 AA	97
Phosphosite 8:	USP17L2	Q6R6M4	S45	PEKSPLSSEARVDLC	66 / 9 AA	60
Phosphosite 9:	ALS2CR8	Q8N187	S201	GPLQPLSSNTPIWAC	62 / 8 AA	81
Phosphosite 10:	PLEKHA6	Q9Y2H5	S1033	APPANPLSSESPRGA	75 / 8 AA	117
Phosphosite 11:	PLEKHA6	Q9Y2H5	S1034	PPANPLSSESPRGAD	75 / 8 AA	117
Phosphosite 12:	HIVEP1	P15822	T575	VTVSPLRTDSPKAMD	75 / 8 AA	297
Phosphosite 13:	ZDBF2	Q9HCK1	S708	SSRSSLSSDSPASLY	77 / 9 AA	266
Phosphosite 14:	ZDBF2	Q9HCK1	S707	QSSRSSLSSDSPASL	87 / 8 AA	266
Phosphosite 15:	C10orf112	Q5VYJ5	S1225	YGSVPLSSNSPFKVA	85 / 7 AA	164
Phosphosite 16:	ANK2	Q01484	S2504	SSGKSPLSPDTPSSE	75 / 8 AA	430
Phosphosite 17:	ZBTB9	Q96C00	T192	STESPASTESPVGGE	66 / 9 AA	51
Phosphosite 18:	CPEB3	Q8NE35	S42	APSTPLSSETPKPEE	62 / 8 AA	76
Phosphosite 19:	SSH2	Q76I76	S1170	SQESPLSSGSEVPYK	77 / 9 AA	158
Phosphosite 20:	CAMSAP1L1	Q08AD1	S960	SSAIAPFSSDSPRPT	75 / 8 AA	168