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:	T758
P-Site Sequence:	IALDKSNTHISNSLF
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	T758	IALDKSNTHISNSLF	100 / 9 AA	119
Phosphosite 1:	C4orf21	Q86YA3	S756	ECIALDKSNTHISNS	100 / 7 AA	119
Phosphosite 2:	STXBP5L	Q9Y2K9	T179	VGTERGNTHIVNIES	55 / 9 AA	132
Phosphosite 3:	C4orf21	Q86YA3	S761	DKSNTHISNSLFYPL	100 / 6 AA	119
Phosphosite 4:	ZNF765	Q7L2R6	T186	RISCRPETHISNDYG	62 / 8 AA	62
Phosphosite 5:	ZNF761	Q86XN6	T186	RISCRPKTHISNNHG	62 / 8 AA	88
Phosphosite 6:	ZNF813	Q6ZN06	T186	RISCRPKTHISNNYG	62 / 8 AA	72
Phosphosite 7:	ZNF468	Q5VIY5	T186	RICCRPKTHISNKYG	62 / 8 AA	61
Phosphosite 8:	ZNF28	P17035	T186	RICCRPKTHISNKYG	62 / 8 AA	84
Phosphosite 9:	TASP1	Q9H6P5	T391	AQDGKAKTHISRLPP	62 / 8 AA	44
Phosphosite 10:	ZIC5	Q96T25	T539	RGCDKSYTHPSSLRK	66 / 9 AA	66
Phosphosite 11:	ZIC1	Q15915	T372	KMCDKSYTHPSSLRK	66 / 9 AA	48
Phosphosite 12:	Zic2	O95409	T403	KMCDKSYTHPSSLRK	66 / 9 AA	55
Phosphosite 13:	ZIC3	O60481	T398	KVCDKSYTHPSSLRK	66 / 9 AA	51
Phosphosite 14:	ZIC5	Q96T25	Y538	IRGCDKSYTHPSSLR	75 / 8 AA	66
Phosphosite 15:	ZIC1	Q15915	Y371	CKMCDKSYTHPSSLR	75 / 8 AA	48
Phosphosite 16:	Zic2	O95409	Y402	CKMCDKSYTHPSSLR	75 / 8 AA	55
Phosphosite 17:	ZIC3	O60481	Y397	CKVCDKSYTHPSSLR	75 / 8 AA	51
Phosphosite 18:	ZNF229	Q9UJW7	T334	GRGVRQNTHIRNHPR	62 / 8 AA	94
Phosphosite 19:	SEC63D1	A2PYH4	T1112	TMQRKSETQISHSKH	62 / 8 AA	163
Phosphosite 20:	ALMS1	Q8TCU4	S3004	NNQHKPKSHISNINV	62 / 8 AA	461