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:	S549
P-Site Sequence:	TEEESQESNKISQDS
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	S549	TEEESQESNKISQDS	100 / 9 AA	119
Phosphosite 1:	KIAA1462	Q9P266	S1002	EPREPQESPKITSAF	66 / 9 AA	148
Phosphosite 2:	CACNA1D	Q01668	S1310	TPGNSEESNRISITF	75 / 8 AA	245
Phosphosite 3:	ADAM2	Q99965	S46	EGIESQASYKIVIEG	75 / 8 AA	82
Phosphosite 4:	DOCK10	Q96BY6	S586	SPLFRQESSKISTED	85 / 7 AA	249
Phosphosite 5:	PPP2R3C	Q969Q6	T267	LSKESQETNWFSAPS	66 / 9 AA	53
Phosphosite 6:	TRPM3	Q9HCF6	S1303	TGLERAESNKIRSRT	66 / 9 AA	198
Phosphosite 7:	SNX24	Q9Y343	S125	DETESEESSKLSHQP	66 / 9 AA	20
Phosphosite 8:	CCDC18	Q5T9S5	S481	CNDSQESSKLSSLET	75 / 8 AA	169
Phosphosite 9:	TTN	Q8WZ42	S33344	NGVELQESSKIHYTN	75 / 8 AA	3816
Phosphosite 10:	C5orf42	Q9H799	S978	HLGESQESNLRGCGD	100 / 6 AA	237
Phosphosite 11:	C5orf42	Q9H799	S975	QSVHLGESQESNLRG	100 / 6 AA	237
Phosphosite 12:	SRPR	P08240	S127	LLREAEESSKIRAPT	62 / 8 AA	70
Phosphosite 13:	HERC2	O95714	S3364	DADSSAASNKISGAS	75 / 8 AA	527
Phosphosite 14:	USH1C	Q9Y6N9	S327	QKRLAMESNKILQEQ	71 / 7 AA	62
Phosphosite 15:	KLK13	Q9UKR3	S24	GGVSQESSKVLNTNG	71 / 7 AA	31
Phosphosite 16:	C4orf21	Q86YA3	S546	TSDTEEESQESNKIS	100 / 6 AA	119
Phosphosite 17:	C13orf39	Q5VZV1	S45	TGGVLEESNKIEPSL	83 / 6 AA	30
Phosphosite 18:	ATP7A	Q04656	S1065	QVKVLTESNRISHHK	83 / 6 AA	163
Phosphosite 19:	CLMN	Q96JQ2	S479	KEQKQESSKIPESSS	71 / 7 AA	112
Phosphosite 20:	SMG1	Q96Q15	S1906	SPPASQDSNKDEPKS	83 / 6 AA	410