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:	C4orf21
Human P-Site:	S904
P-Site Sequence:	ELSEPLQSVQFSSSG
UniProt:	Q86YA3
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	C4orf21	Q86YA3	S904	ELSEPLQSVQFSSSG	100 / 9 AA	119
Phosphosite 1:	PIP5K	Q9Y2I7	T442	LYRPLQSTEFSETPS	75 / 8 AA	237
Phosphosite 2:	PIP5K	Q9Y2I7	S441	ALYRPLQSTEFSETP	75 / 8 AA	237
Phosphosite 3:	SPATA7	Q9P0W8	S566	LNTSPSQSVQFSSVK	87 / 8 AA	68
Phosphosite 4:	CERK	Q8TCT0	S12	GAAEPLQSVLWVKQQ	75 / 8 AA	60
Phosphosite 5:	ZDBF2	Q9HCK1	S1295	DSHEPLQSVTNKIPG	100 / 6 AA	266
Phosphosite 6:	NFATC2IP	Q8NCF5	S288	RMSEPLQSVVDHMAT	100 / 6 AA	46
Phosphosite 7:	OBSCN	Q5VST9	S3898	VFREPLQSLQAEEGS	85 / 7 AA	868
Phosphosite 8:	RPS16	P62249	S9	PSKGPLQSVQVFGRK	100 / 6 AA	16
Phosphosite 9:	GAA	P10253	S210	RAPSPLYSVEFSEEP	75 / 8 AA	105
Phosphosite 10:	NES	P48681	S873	EIQEPLESVEVNQET	71 / 7 AA	177
Phosphosite 11:	ZBTB8OS	Q8IWT0	T75	GTVEPLQTVEVETQG	71 / 7 AA	19
Phosphosite 12:	CTSW	P56202	S127	RSEEPEESVPFSCDW	66 / 9 AA	42
Phosphosite 13:	Fe65	O00213	S185	GLPEPLESVEAPPRP	71 / 7 AA	77
Phosphosite 14:	ZDBF2	Q9HCK1	S1209	DSDDPLQSVADRLRE	83 / 6 AA	266
Phosphosite 15:	TSC22D1	Q15714	S894	AQQIPLSSTQFSAQS	75 / 8 AA	110
Phosphosite 16:	SLC38A2	Q96QD8	S469	VKKEPMKSVQKIGAL	71 / 7 AA	56
Phosphosite 17:	MBD4	O95243	S71	LLQEPIASAQFGATA	55 / 9 AA	66
Phosphosite 18:	Nlp	Q9Y2I6	S345	NGREILQSLDFSVDE	66 / 9 AA	160
Phosphosite 19:	KLHL11	Q9NVR0	S127	EYFTPLLSGQFSESR	75 / 8 AA	80
Phosphosite 20:	ACOX3	O15254	S485	CFRSPLKSVDFLDAY	71 / 7 AA	78