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:	PDE1B
Human P-Site:	S273
P-Site Sequence:	EHTGTTNSFHIQTKS
UniProt:	Q01064
Intern. Prot. ID:	IPI00005592

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	PDE1B	Q01064	S273	EHTGTTNSFHIQTKS	100 / 9 AA	61
Phosphosite 1:	MTRR	Q9UBK8	S556	ISPRTTNSFHLPDDP	75 / 8 AA	80
Phosphosite 2:	DHX40	Q8IX18	T52	QEGGTTPTFPIQKQR	66 / 9 AA	89
Phosphosite 3:	HCN4	Q9Y3Q4	S856	VDTPSSSSFHIQQLA	62 / 8 AA	129
Phosphosite 4:	CTBS	Q01459	S166	LVKETTDSFHREIEG	55 / 9 AA	44
Phosphosite 5:	MTRR	Q9UBK8	T554	ISISPRTTNSFHLPD	100 / 6 AA	80
Phosphosite 6:	PDE2A	O00408	S706	DHRGTNNSFQVASKS	62 / 8 AA	106
Phosphosite 7:	Putative uncharacterized protein LOC400499	Q6ZTK2	S107	QGQLWTNSLRIQYSL	71 / 7 AA	62
Phosphosite 8:	C6orf152	Q86VQ0	S252	NLELSTNSFQRQLLA	62 / 8 AA	81
Phosphosite 9:	PTPRT	O14522	Y562	GLYPGTTYSFTIKAS	75 / 8 AA	164
Phosphosite 10:	NCOA4	Q13772	S280	NSHSTTSSFSIEMEK	55 / 9 AA	70
Phosphosite 11:	CCDC73	Q6ZRK6	S868	GQLEESHSFHIEPSG	57 / 7 AA	124
Phosphosite 12:	AGGF1	Q8N302	S513	KIGETVLSFHIHPGS	55 / 9 AA	81
Phosphosite 13:	ANKRD16	Q6P6B7	S140	KNKDGWNSFHIASRE	100 / 5 AA	39
Phosphosite 14:	CHD9	Q3L8U1	S1593	KVKTQTSSFDIQKAE	71 / 7 AA	326
Phosphosite 15:	MEKK4	Q9Y6R4	S481	IRQPIDNSFDIQSRD	83 / 6 AA	182
Phosphosite 16:	CCDC87	Q9NVE4	S456	SDRNFLDSFHIEGAG	66 / 6 AA	96
Phosphosite 17:	ABP1	P19801	S528	DVAGTKNSFQTLQMK	71 / 7 AA	85
Phosphosite 18:	VPS13A	Q96RL7	S807	EVSAPVKSFQIQTST	44 / 9 AA	360
Phosphosite 19:	OPHN1	O60890	S703	SGPTKTPSFHIKRPA	71 / 7 AA	92
Phosphosite 20:	COL12A1	Q99715	S738	VTDETTDSFKITWTQ	71 / 7 AA	333