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:	T69
P-Site Sequence:	ESDRYLITVEEVKVA
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	T69	ESDRYLITVEEVKVA	100 / 9 AA	119
Phosphosite 1:	TTN	Q8WZ42	S4214	VESKYLISTEEVSYF	66 / 9 AA	3816
Phosphosite 2:	WFIKKN2	Q8TEU8	T484	DSGRALVTVDEVLKD	66 / 9 AA	64
Phosphosite 3:	C4orf21	Q86YA3	Y66	DDLESDRYLITVEEV	100 / 6 AA	119
Phosphosite 4:	TTN	Q8WZ42	T4215	ESKYLISTEEVSYFN	75 / 8 AA	3816
Phosphosite 5:	ESPN	B1AK53	T326	HCTRYLRTVENLSVE	66 / 9 AA	92
Phosphosite 6:	MLL3	Q8NEZ4	S4601	RRCRYLCSIEEKDGR	62 / 8 AA	541
Phosphosite 7:	CATSPERB	Q9H7T0	T973	LQSPYLVTVTEVNMR	66 / 9 AA	127
Phosphosite 8:	PATL1	Q86TB9	S546	YERRYLLSLEEERPA	62 / 8 AA	87
Phosphosite 9:	ATP7A	Q04656	S221	VYQPHLISVEEMKKQ	55 / 9 AA	163
Phosphosite 10:	ADAMTS4	O75173	T244	GLKRYLLTVMAAAAK	83 / 6 AA	90
Phosphosite 11:	ADAL	Q6DHV7	Y143	NLDIDVRYLIAVDRR	83 / 6 AA	40
Phosphosite 12:	EMILIN2	Q9BXX0	Y952	TAPYDGRYLITATLT	83 / 6 AA	116
Phosphosite 13:	GRIN2B	Q13224	Y338	QSNMLNRYLINVTFE	83 / 6 AA	166
Phosphosite 14:	ADAMTS4	O75173	Y241	HGAGLKRYLLTVMAA	83 / 6 AA	90
Phosphosite 15:	HEY2	Q9UBP5	S138	TEVARYLSSVEGLDS	71 / 7 AA	36
Phosphosite 16:	TGFBR1	P36897	T298	YLNRYTVTVEGMIKL	55 / 9 AA	56
Phosphosite 17:	HEY2	Q9UBP5	S139	EVARYLSSVEGLDSS	55 / 9 AA	36
Phosphosite 18:	QKI	Q96PU8	T156	EDLHVLITVEDAQNR	62 / 8 AA
Phosphosite 19:	STON1	Q9Y6Q2	T392	DFLDFLTTVEEELMK	71 / 7 AA	83
Phosphosite 20:	ZSWIM6	Q9HCJ5	Y313	QLQKFVQYLITVHHT	83 / 6 AA	133