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:	T117
P-Site Sequence:	SGLKRKFTGFQGPRQ
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	T117	SGLKRKFTGFQGPRQ	100 / 9 AA	119
Phosphosite 1:	AFTPH	Q6ULP2	T391	KEESRKFTNFQSPNI	75 / 8 AA	102
Phosphosite 2:	GINS3	Q9BRX5	T212	NYKKRKFTDMED___	55 / 9 AA	25
Phosphosite 3:	COL5A2	P05997	T1148	QKGHRGFTGLQGLPG	75 / 8 AA	145
Phosphosite 4:	COL2A1	P02458	T1136	LKGHRGFTGLQGLPG	75 / 8 AA	142
Phosphosite 5:	VPS33A	Q96AX1	T214	IRMKREFTGSQNSIF	75 / 8 AA	68
Phosphosite 6:	HDGFRP3	Q9Y3E1	Y99	PGVKFTGYQAIQQQS	71 / 7 AA	23
Phosphosite 7:	RG9MTD1	Q7L0Y3	T382	FVPKRKHTGFLEISQ	85 / 7 AA	47
Phosphosite 8:	HPS3	Q969F9	S287	ADEKRKYSHFQHLLY	62 / 8 AA	114
Phosphosite 9:	HPS3	Q969F9	Y286	LADEKRKYSHFQHLL	62 / 8 AA	114
Phosphosite 10:	CSTF3	Q12996	T510	KVEKRRFTAFKEEYE	55 / 9 AA	83
Phosphosite 11:	DYSF	O75923	T533	YGSPREFTGFPDPYT	62 / 8 AA	237
Phosphosite 12:	LIG3	P49916	S227	STNPRKFSGFSAKPN	83 / 6 AA	113
Phosphosite 13:	PITPNB	P48739	T222	KQEKRIFTNFHRQLF	62 / 8 AA	32
Phosphosite 14:	ACTL9	Q8TC94	T348	CGGSSLFTGFEGRFR	83 / 6 AA	46
Phosphosite 15:	LOC63920	Q8IZ13	T425	RIEKRNFTNFPFLEE	62 / 8 AA	68
Phosphosite 16:	MTMR10	Q9NXD2	T429	DPYFRTITGFQSLIQ	62 / 8 AA	88
Phosphosite 17:	TAPBPL	Q9BX59	T79	DGSLEDFTDFQGGTL	71 / 7 AA	50
Phosphosite 18:	PECI	O75521	T137	PGTDRKSTGFETLVV	71 / 7 AA	40
Phosphosite 19:	PECI	O75521	S136	EPGTDRKSTGFETLV	71 / 7 AA	40
Phosphosite 20:	OSTN	P61366	S85	TKKKRSFSGFGSPLD	71 / 7 AA	15