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:	CDKL5
Human P-Site:	S257
P-Site Sequence:	PAVNHPQSLERRYLG
UniProt:	O76039
Intern. Prot. ID:	IPI00297671

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CDKL5	O76039	S257	PAVNHPQSLERRYLG	100 / 9 AA	116
Phosphosite 1:	UBXD1	Q9BZV1	S252	TTLAQPQSLERHKEQ	75 / 8 AA	50
Phosphosite 2:	GAD1	Q99259	S164	ELSDHPESLEQILVD	62 / 8 AA	67
Phosphosite 3:	FBX38	Q6PIJ6	Y114	LYGLHPRYLERRRVR	75 / 8 AA	134
Phosphosite 4:	FLG	P20930	S127	ENRKRPSSLERRNNR	66 / 9 AA	435
Phosphosite 5:	IGSF1	Q8N6C5	S1151	AASNHSDSLEIWVTD	55 / 9 AA	149
Phosphosite 6:	KIF21B	O75037	S918	AARLKWQSLERRIID	100 / 6 AA	183
Phosphosite 7:	GLI1	P08151	S538	RRVGPPVSLERRSSS	66 / 9 AA	118
Phosphosite 8:	POLR2A	P24928	S508	MNLHLPQSLETRAEI	85 / 7 AA	217
Phosphosite 9:	SPTLC3	Q9NUV7	S279	FKHNNTQSLEKLLRD	62 / 8 AA	62
Phosphosite 10:	LAMA5	O15230	T203	LERFGPQTLERITRD	83 / 6 AA	400
Phosphosite 11:	C17orf63	Q8WU58	S189	QALSHPQSLQQPQGL	62 / 8 AA	60
Phosphosite 12:	ABCC3	O15438	S615	QEELDPQSVERKTIS	62 / 8 AA	169
Phosphosite 13:	Protein FAM75D1	Q6ZQQ2	S1517	LCQSHPQSMPHRKPV	55 / 9 AA	176
Phosphosite 14:	RAET1G	Q6H3X3	S257	SHGHHPQSLQPPPHP	55 / 9 AA	37
Phosphosite 15:	KCNH4	Q9UQ05	S155	GDSNHENSLGRRGAT	66 / 9 AA	112
Phosphosite 16:	CATSPER3	Q86XQ3	S391	LPQEKPQSLEKVDEK	83 / 6 AA	46
Phosphosite 17:	HSD17B6	O14756	S219	GMTNMTQSLERMKQS	66 / 9 AA	36
Phosphosite 18:	LOC643677	Q8NDH2	S2311	KSHRHPESQERKKAR	62 / 8 AA	278
Phosphosite 19:	F10	P00742	T176	PYPCGKQTLERRKRS	83 / 6 AA	55
Phosphosite 20:	NSD1	Q96L73	S2374	AASPRPQSLEKTSVP	71 / 7 AA	297