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:	tau
Human P-Site:	S721
P-Site Sequence:	PVVSGDTSPRHLSNV
UniProt:	P10636
Intern. Prot. ID:	IPI00747283

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	tau	P10636	S721	PVVSGDTSPRHLSNV	100 / 9 AA	79
Phosphosite 1:	tau	P10636	T720	SPVVSGDTSPRHLSN	100 / 8 AA	79
Phosphosite 2:	C4orf42	Q0VAR9	T48	PQGSWGQTSPRHSIL	75 / 8 AA	20
Phosphosite 3:	C4orf42	Q0VAR9	S49	QGSWGQTSPRHSILC	75 / 8 AA	20
Phosphosite 4:	MTMR4	Q9NYA4	T923	SFPSGEATPRRLLSY	55 / 9 AA	133
Phosphosite 5:	KIAA1549	Q9HCM3	T1482	DDLSSGDTKERHRVY	75 / 8 AA	203
Phosphosite 6:	RABGEF1	Q9UJ41	T606	DRYMSGQTSPRKQEA	85 / 7 AA	79
Phosphosite 7:	RABGEF1	Q9UJ41	S607	RYMSGQTSPRKQEAE	85 / 7 AA	79
Phosphosite 8:	TCEANC	Q8N8B7	S249	NLLSGTTSPREFAEM	66 / 9 AA	40
Phosphosite 9:	C1orf113	A4FU49	S444	TLVRGDSSPRQAELK	71 / 7 AA	71
Phosphosite 10:	C1orf113	A4FU49	S443	CTLVRGDSSPRQAEL	71 / 7 AA	71
Phosphosite 11:	ADD3	Q9UEY8	S461	ESRNGETSPRTKITW	71 / 7 AA	79
Phosphosite 12:	ADD3	Q9UEY8	T460	EESRNGETSPRTKIT	71 / 7 AA	79
Phosphosite 13:	CSNK1E	P49674	S363	IQPAGNTSPRAISRV	71 / 7 AA	47
Phosphosite 14:	DLGAP4	Q9Y2H0	S7	_MKGLGDSRPRHLSD	71 / 7 AA	108
Phosphosite 15:	SHANK1	Q9Y566	S1979	SASSSSTSTRHLQGV	66 / 9 AA	225
Phosphosite 16:	ERVK6	Q9WJR5	T931	SREHKGDTNPREYAA	83 / 6 AA	108
Phosphosite 17:	ERVK6	Q9BXR3	T928	SREHKGDTNPREYAA	83 / 6 AA	108
Phosphosite 18:	HERV-K_11q22.1 provirus ancestral Pol protein	P63136	T926	SREHKGDTNPREYAA	83 / 6 AA	107
Phosphosite 19:	HERV-K_8p23.1 provirus ancestral Pol protein	P63133	T928	SREHKGDTNPREYAA	83 / 6 AA	108
Phosphosite 20:	HERV-K_19p13.11 provirus ancestral Pol protein	P63132	T928	SREHKGDTNPREYAA	83 / 6 AA	108