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:	S390
P-Site Sequence:	KKYNVDQSVGNNDPS
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	S390	KKYNVDQSVGNNDPS	100 / 9 AA	119
Phosphosite 1:	K9	P35527	T219	KDQIVDLTVGNNKTL	75 / 8 AA	62
Phosphosite 2:	ANKH	Q9HCJ1	S123	KLHHVDESVGSKTRR	55 / 9 AA	54
Phosphosite 3:	EXOSC10	Q01780	S861	AAKKIKQSVGNKSMS	55 / 9 AA	101
Phosphosite 4:	LMNA	P02545	S463	NKSNEDQSMGNWQIK	75 / 8 AA	74
Phosphosite 5:	SOX30	O94993	S149	LGPSLDQSVGPRGAV	71 / 7 AA	82
Phosphosite 6:	AAK1	Q2M2I8	S850	DKYLVNQSLGNSPAT	62 / 8 AA	94
Phosphosite 7:	SCARB2	Q14108	S124	YVFERDQSVGDPKID	83 / 6 AA	54
Phosphosite 8:	PFAS	O15067	S687	LTNKVDRSVGGLVAQ	71 / 7 AA	145
Phosphosite 9:	CLOCK	O15516	S153	PSDLVDQSIFNFIPE	71 / 7 AA	95
Phosphosite 10:	PPP1R8	Q12972	S218	NPEDVDPSVGRFRNM	71 / 7 AA	38
Phosphosite 11:	FAM91A1	Q658Y4	S25	LPANVRQSLGNSQRE	66 / 9 AA	94
Phosphosite 12:	LMNB2	Q03252	S477	NNSDKDQSLGNWRIK	83 / 6 AA	68
Phosphosite 13:	DDX60	Q8IY21	S1200	KTRNVDQSLIHEAEH	83 / 6 AA	198
Phosphosite 14:	ANKRD13A	Q8IZ07	S461	TNFEVDQSVFEIPES	83 / 6 AA	68
Phosphosite 15:	BMP15	O95972	S351	INQLVDQSVPRPSCV	100 / 5 AA	45
Phosphosite 16:	MAPK8IP2	Q13387	S799	SMRPVAQSVGRAFLE	83 / 6 AA	88
Phosphosite 17:	RAB6B	Q9NRW1	S23	LVFLGEQSVGKTSLI	57 / 7 AA	23
Phosphosite 18:	AVL9	Q8NBF6	S613	TGKAVGQSVGGAFSS	71 / 7 AA	72
Phosphosite 19:	QRICH2	Q9H0J4	S1491	DLAQMEQSVGRLRSM	66 / 6 AA	181
Phosphosite 20:	BORA	Q6PGQ7	S183	ADEFADQSPGNLSSS	71 / 7 AA	61