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:	STX3
Human P-Site:	Y256
P-Site Sequence:	ETKKAVKYQSQARKK
UniProt:	Q13277
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	STX3	Q13277	Y256	ETKKAVKYQSQARKK	100 / 9 AA	33
Phosphosite 1:	STX1A	Q16623	Y257	DTKKAVKYQSKARRK	88 / 9 AA	33
Phosphosite 2:	STX1B	P61266	Y256	DTKKAVKYQSKARRK	88 / 9 AA	33
Phosphosite 3:	STX2	P32856	Y256	ETKKAIKYQSKARRK	77 / 9 AA	33
Phosphosite 4:	STX3	Q13277	S258	KKAVKYQSQARKKLI	100 / 7 AA	33
Phosphosite 5:	STX1A	Q16623	S259	KKAVKYQSKARRKKI	85 / 7 AA	33
Phosphosite 6:	STX1B	P61266	S258	KKAVKYQSKARRKKI	85 / 7 AA	33
Phosphosite 7:	KIAA1529	Q9P1Z9	Y1372	ISKKILEYQSQANKY	66 / 9 AA	198
Phosphosite 8:	CCDC141	Q6ZP82	Y367	RNLKALKYQIQQVDM	75 / 8 AA	101
Phosphosite 9:	ZNF840P	A6NDX5	Y616	TCEKAFKYQSNFTKH	85 / 7 AA	83
Phosphosite 10:	ASPM	Q8IZT6	Y1844	GYNKRVKYQSVLQSI	85 / 7 AA	410
Phosphosite 11:	TTC28	Q96AY4	Y536	MYDQAVKYHRQELQI	62 / 8 AA	271
Phosphosite 12:	SLC9A9	Q8IVB4	Y591	QDELAINYQEQASSP	62 / 8 AA	73
Phosphosite 13:	STX2	P32856	S258	KKAIKYQSKARRKKW	71 / 7 AA	33
Phosphosite 14:	ZNF765	Q7L2R6	Y138	AGNKPVKYQLGFSFH	83 / 6 AA	62
Phosphosite 15:	ST8SIA4	Q92187	Y314	LNGKAVKYHYYDDLK	83 / 6 AA	41
Phosphosite 16:	TXNDC5	Q8NBS9	Y151	PGQEAVKYQGPRDFQ	71 / 7 AA	48
Phosphosite 17:	PRMT10	Q6P2P2	S337	PTNVKFQSPAYSSVD	71 / 7 AA	95
Phosphosite 18:	SNAI1	O95863	Y236	THSDVKKYQCQACAR	83 / 6 AA	29
Phosphosite 19:	C4orf31	Q8TB73	Y557	HGGHSVKYQSKVVKT	83 / 6 AA	65
Phosphosite 20:	CTTNBP2NL	Q9P2B4	S468	AARHKFQSQADQDQQ	83 / 6 AA	70