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:	S864
P-Site Sequence:	QQTYEPDSPPEVRKP
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	S864	QQTYEPDSPPEVRKP	100 / 9 AA	119
Phosphosite 1:	NCOR1	O75376	S2151	SEPYEPISPPQVPVV	77 / 9 AA	270
Phosphosite 2:	SHROOM2	Q13796	S456	AASFQNDSPPQVRGL	55 / 9 AA	176
Phosphosite 3:	ECM29	Q5VYK3	S1826	LATMEPDSRPELQEK	75 / 8 AA	204
Phosphosite 4:	HOXA3	O43365	S293	SVPYEPQSPPPFSKP	85 / 7 AA	46
Phosphosite 5:	CBFA2T3	O75081	S65	KASAMPDSPAEVKTQ	85 / 7 AA	71
Phosphosite 6:	RARS2	Q5T160	S544	KTLQIKDSPPEVAGA	100 / 6 AA	66
Phosphosite 7:	RSF1	Q96T23	S748	SRKKKPDSPPKVLEP	75 / 8 AA	164
Phosphosite 8:	NUCKS1	Q9H1E3	S214	EEDEEPESPPEKKTS	85 / 7 AA	27
Phosphosite 9:	TRAPPC2	O14582	S119	NPFYEPNSPIRSSAF	83 / 6 AA	16
Phosphosite 10:	SDF4	Q9BRK5	S209	DRWYQADSPPADLLL	71 / 7 AA	42
Phosphosite 11:	AASDH	Q4L235	S92	YVPIEPDSPPSLSTH	85 / 7 AA	123
Phosphosite 12:	DOS	Q8N350	S419	AGGASPDSPPERGAG	100 / 6 AA	76
Phosphosite 13:	SREBP2	Q12772	S469	KVKDEPDSPPVALGM	100 / 6 AA	124
Phosphosite 14:	CCDC86	Q9H6F5	S47	EETREPGSPPSVQRA	75 / 8 AA	40
Phosphosite 15:	GALNTL4	Q6P9A2	S152	RNLSFPDSLPEVSIV	85 / 7 AA	70
Phosphosite 16:	LACRT	Q9GZZ8	S52	SGPAEPASPPETTTT	75 / 8 AA	14
Phosphosite 17:	E2F2	Q14209	S312	EEVQEPDSPSEEPLP	85 / 7 AA	48
Phosphosite 18:	CREB3L2	Q70SY1	S436	LLIYEEHSPPEESSS	75 / 8 AA	57
Phosphosite 19:	KIAA0174	P53990	S181	NVPYEPDSVVMAEAP	100 / 5 AA	40
Phosphosite 20:	NSUN2	Q08J23	Y661	KGSIVLKYEPDSANP	100 / 5 AA	86