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:	RP1-21O18.1
Human P-Site:	S423
P-Site Sequence:	TRQSLSLSEGEEQMD
UniProt:	Q674X7
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	RP1-21O18.1	Q674X7	S423	TRQSLSLSEGEEQMD	100 / 9 AA	86
Phosphosite 1:	TMEPAI	Q969W9	S153	LPPTISLSDGEEPPP	66 / 9 AA	32
Phosphosite 2:	C18orf1	O15165	S175	LPPTISLSDGEEPPP	66 / 9 AA	34
Phosphosite 3:	SLCO4C1	Q6ZQN7	S81	KLRSLSLSEFEEGSY	88 / 9 AA	79
Phosphosite 4:	REG1B	P48304	S20	SLMFLSLSQGQESQT	75 / 8 AA	19
Phosphosite 5:	ROBO4	Q8WZ75	S805	VALCLELSEGEETPR	77 / 9 AA	107
Phosphosite 6:	CHAF1A	Q13111	S616	PGESLSHSEGDDDDD	66 / 9 AA	107
Phosphosite 7:	Peregrin	P55201	S462	RLPALSHSEGEEDED	77 / 9 AA	138
Phosphosite 8:	RP1-21O18.1	Q674X7	S421	SPTRQSLSLSEGEEQ	100 / 7 AA	86
Phosphosite 9:	FRY	Q5TBA9	T2632	DSFSLDMTEGEEKGN	66 / 9 AA	339
Phosphosite 10:	ITGA5	P08648	S128	LESSLSSSEGEEPVE	88 / 9 AA	115
Phosphosite 11:	CCDC88C	Q9P219	S1963	VRAGLSLSEGDGVPG	75 / 8 AA	228
Phosphosite 12:	C21orf2	O43822	S136	EELSRALSEGEEITA	77 / 9 AA	28
Phosphosite 13:	ZRANB1	Q9UGI0	S697	IRPCTSLSDGEEDED	85 / 7 AA	81
Phosphosite 14:	S100PBP	Q96BU1	S42	DDSLLELSEGEEDDG	87 / 8 AA	46
Phosphosite 15:	ZNF804A	Q7Z570	S668	KSESISLSDNEEMCK	66 / 9 AA	137
Phosphosite 16:	ECD	O95905	S381	PESSLAMSPGEEILT	66 / 9 AA	73
Phosphosite 17:	HGK	O95819	S805	AASSLNLSNGETESV	75 / 8 AA	142
Phosphosite 18:	ZNF462	Q96JM2	S794	AEIELTLSEDEEDYY	75 / 8 AA	285
Phosphosite 19:	SH3D19	Q5HYK7	S593	QKDELSFSEGEIIIL	85 / 7 AA	87
Phosphosite 20:	CHRM1	P11229	S291	SMESLTSSEGEEPGS	77 / 9 AA	51