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:	PARP9
Human P-Site:	S500
P-Site Sequence:	NNYSVPQSTREEKRE
UniProt:	Q8IXQ6
Intern. Prot. ID:	IPI00027803

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	PARP9	Q8IXQ6	S500	NNYSVPQSTREEKRE	100 / 9 AA	96
Phosphosite 1:	C8orf73	A6NGR9	S103	PHQVPQSSWEEGVLA	75 / 8 AA	77
Phosphosite 2:	C8orf73	A6NGR9	S102	GPHQVPQSSWEEGVL	75 / 8 AA	77
Phosphosite 3:	SgK307	Q8IWB6	S714	SSLSLPESTREAKSN	75 / 8 AA	168
Phosphosite 4:	MYBPH	Q13203	S38	GEVAVSESTREEQVP	66 / 9 AA	52
Phosphosite 5:	FGD6	Q6ZV73	S44	VISSVPQSTKKMKPA	85 / 7 AA	161
Phosphosite 6:	DCBLD2	Q96PD2	T756	VYQVPQSTQEVSGAG	85 / 7 AA	85
Phosphosite 7:	DCBLD2	Q96PD2	S755	LVYQVPQSTQEVSGA	85 / 7 AA	85
Phosphosite 8:	RAI1	Q7Z5J4	S507	PPSSTPQSTHAEPQE	66 / 9 AA	203
Phosphosite 9:	CENPC1	Q03188	S62	STKSVPNSTRKIKDT	75 / 8 AA	107
Phosphosite 10:	STOX2	Q9P2F5	S647	DRQVPHSSREPVGHK	71 / 7 AA	103
Phosphosite 11:	TP53BP2	Q13625	S432	GSASVPQSTGNALDQ	100 / 6 AA	126
Phosphosite 12:	BAZ2A	Q9UIF9	T1546	TCPSPDSTREDLAYC	71 / 7 AA	211
Phosphosite 13:	FLNA	P21333	S1991	TATVVPPSGREEPCL	75 / 8 AA	281
Phosphosite 14:	STOX2	Q9P2F5	S646	SDRQVPHSSREPVGH	71 / 7 AA	103
Phosphosite 15:	CCDC129	Q6ZRS4	S132	STASVPQSIPEWLEF	75 / 8 AA	99
Phosphosite 16:	APPL2	Q8NEU8	T586	VIRVPESTGEESLST	75 / 8 AA	74
Phosphosite 17:	BAZ2A	Q9UIF9	S1545	WTCPSPDSTREDLAY	71 / 7 AA	211
Phosphosite 18:	KCTD13	Q8WZ19	S110	GSVPLPESTRELGEL	62 / 8 AA	36
Phosphosite 19:	FAM190A	Q9C0I3	S176	TRRSVKQSTRKLLPK	75 / 8 AA	100
Phosphosite 20:	ITSN1	Q15811	S220	AEWAVPQSSRLKYRQ	71 / 7 AA	195