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:	S957
P-Site Sequence:	GVMVRGHSSQLGCGQ
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	S957	GVMVRGHSSQLGCGQ	100 / 9 AA	119
Phosphosite 1:	C4orf21	Q86YA3	S958	VMVRGHSSQLGCGQF	100 / 8 AA	119
Phosphosite 2:	CLEC18C	Q8NCF0	S158	TQLVWATSSQLGCGR	66 / 9 AA	50
Phosphosite 3:	CLEC18B	Q6UXF7	S158	TQLVWATSSQLGCGR	66 / 9 AA	50
Phosphosite 4:	THAP4	Q8WY91	S116	TGGVRGHSSAATSRG	100 / 6 AA	63
Phosphosite 5:	KIF5A	Q12840	S915	SSGKRGHSAQIAKPV	62 / 8 AA	117
Phosphosite 6:	LPP	Q93052	S375	LQPKGGHSGQLGPSS	85 / 7 AA	66
Phosphosite 7:	KIF5B	P33176	S917	NMARRGHSAQIAKPI	62 / 8 AA	110
Phosphosite 8:	FAM122A	Q96E09	S82	ASPVRMHSSRLHQIK	75 / 8 AA	31
Phosphosite 9:	C4BPA	P04003	S90	PGYVRSHSTQTLTCN	71 / 7 AA	67
Phosphosite 10:	MOGS	Q13724	S235	KFISGHTSELGDFRF	62 / 8 AA	92
Phosphosite 11:	SYTL1	Q8IYJ3	S8	MPQRGHPSQEGLWAL	75 / 8 AA	62
Phosphosite 12:	C4BPA	P04003	S88	CLPGYVRSHSTQTLT	71 / 7 AA	67
Phosphosite 13:	TNC	P24821	S1334	HGEVRGHSTRPLAVE	71 / 7 AA	241
Phosphosite 14:	GPR98	Q8WXG9	S5830	LSVKGQSSQLLTNDN	71 / 7 AA	693
Phosphosite 15:	MEF2D	Q14814	T259	PPPPTHSTQLGAPSR	83 / 6 AA	56
Phosphosite 16:	MEF2D	Q14814	S258	SPPPPTHSTQLGAPS	83 / 6 AA	56
Phosphosite 17:	SMCHD1	A6NHR9	S855	QDEFGHTSQLVTDIQ	83 / 6 AA	226
Phosphosite 18:	HAL	P42357	S195	VNLVRSHSSGVGKPL	66 / 9 AA	73
Phosphosite 19:	ECSCR	Q19T08	S24	LLFRGHNSQPTMTQT	83 / 6 AA	21
Phosphosite 20:	LBA1	O15050	S633	STAPGHTSQLKSQGS	71 / 7 AA	284