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:	STX1A
Human P-Site:	S121
P-Site Sequence:	RIRKTQHSTLSRKFV
UniProt:	Q16623
Intern. Prot. ID:	IPI00003370

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	STX1A	Q16623	S121	RIRKTQHSTLSRKFV	100 / 9 AA	33
Phosphosite 1:	STX1B	P61266	S120	RIRKTQHSTLSRKFV	100 / 9 AA	33
Phosphosite 2:	STX1A	Q16623	T122	IRKTQHSTLSRKFVE	100 / 8 AA	33
Phosphosite 3:	STX1B	P61266	T121	IRKTQHSTLSRKFVE	100 / 8 AA	33
Phosphosite 4:	STX3	Q13277	S121	RIRKSQHSVLSRKFV	77 / 9 AA	33
Phosphosite 5:	STX2	P32856	S120	RIRRTQHSVLSRKFV	77 / 9 AA	33
Phosphosite 6:	MLTK	Q9NYL2	S703	YSGKSQHSTPSRGRY	77 / 9 AA	91
Phosphosite 7:	FAM178B	Q8IXR5	S700	WQEKTQLSSLSRLLG	77 / 9 AA	94
Phosphosite 8:	HDAC4	P56524	S209	WYGKTQHSSLDQSSP	66 / 9 AA	119
Phosphosite 9:	GPR142	Q7Z601	S48	HAQKSQHSCLSHSRW	66 / 9 AA	51
Phosphosite 10:	PCDH10	Q9P2E7	S1011	GKEKALHSTLERKEL	66 / 9 AA	113
Phosphosite 11:	C1orf85	Q8WWB7	S90	VATNTPHSTLSVNWS	75 / 8 AA	44
Phosphosite 12:	STX1A	Q16623	T118	ADLRIRKTQHSTLSR	100 / 6 AA	33
Phosphosite 13:	STX1B	P61266	T117	ADLRIRKTQHSTLSR	100 / 6 AA	33
Phosphosite 14:	ZNF624	Q9P2J8	T7	_MSLQDSTLSREGKP	85 / 7 AA	100
Phosphosite 15:	MLTK	Q9NYL2	T704	SGKSQHSTPSRGRYP	75 / 8 AA	91
Phosphosite 16:	ZNF624	Q9P2J8	S6	__MSLQDSTLSREGK	85 / 7 AA	100
Phosphosite 17:	C1orf85	Q8WWB7	T91	ATNTPHSTLSVNWSL	85 / 7 AA	44
Phosphosite 18:	FAM178B	Q8IXR5	S701	QEKTQLSSLSRLLGL	75 / 8 AA	94
Phosphosite 19:	COBLL1	Q53SF7	S719	NNISTQHSCLSSQDS	85 / 7 AA	132
Phosphosite 20:	ZNF564	Q8TBZ8	S116	GKVFMHHSSLSRHIR	71 / 7 AA	64