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:	S100
P-Site Sequence:	LNSRTFISSGRSLGC
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	S100	LNSRTFISSGRSLGC	100 / 9 AA	119
Phosphosite 1:	C4orf21	Q86YA3	S101	NSRTFISSGRSLGCQ	100 / 8 AA	119
Phosphosite 2:	C1RL	Q9NZP8	S130	PGQREFVSSGRSLRL	77 / 9 AA	53
Phosphosite 3:	TNFRSF11A	Q9Y6Q6	S535	NSNSTFISSGQVMNF	85 / 7 AA	66
Phosphosite 4:	PALB2	Q86YC2	S157	QQKRTFISQERDCVF	75 / 8 AA	131
Phosphosite 5:	C1RL	Q9NZP8	S131	GQREFVSSGRSLRLT	85 / 7 AA	53
Phosphosite 6:	VPS18	Q9P253	S528	ECFRTFLSSPRHKEW	75 / 8 AA	110
Phosphosite 7:	C4orf21	Q86YA3	T97	APELNSRTFISSGRS	100 / 6 AA	119
Phosphosite 8:	PPM1K	Q8N3J5	S367	SFSRSFASSGRWA__	66 / 9 AA	41
Phosphosite 9:	SCRT2	Q9NQ03	S114	SMDAFFISDGRSRRR	85 / 7 AA	33
Phosphosite 10:	COL6A6	A6NMZ7	S1871	RKIATFFSSGQSADA	75 / 8 AA	247
Phosphosite 11:	ADARB2	Q9NS39	S320	DGRTFEGSGRSKKLA	75 / 8 AA	81
Phosphosite 12:	ATP8B1	O43520	S1222	RGYADLISSGRSIRK	85 / 7 AA	144
Phosphosite 13:	ATP8B1	O43520	S1223	GYADLISSGRSIRKK	85 / 7 AA	144
Phosphosite 14:	PKIA	P61925	S14	TYADFIASGRTGRRN	71 / 7 AA	8
Phosphosite 15:	RapGEF1	Q13905	S728	TTYRTFISPEELIKK	71 / 7 AA	121
Phosphosite 16:	C3	P01024	T1583	VQVGQQRTFISPIKC	83 / 6 AA	187
Phosphosite 17:	SDR42E1	Q8WUS8	S255	SGQPYFISDGRPVNN	71 / 7 AA	44
Phosphosite 18:	PTGER3	P43115	T212	GTWCFISTGRGGNGT	71 / 7 AA	43
Phosphosite 19:	MGAM	O43451	S1516	TRSTFPSSGRWAGHW	75 / 8 AA	210
Phosphosite 20:	C9orf75	Q4KMQ1	S642	PRATFVSSVRPESSR	62 / 8 AA	76