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:	spermidine synthase
Human P-Site:	Y48
P-Site Sequence:	LHHRRSRYQDILVFR
UniProt:	P19623
Intern. Prot. ID:	IPI00292020

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	spermidine synthase	P19623	Y48	LHHRRSRYQDILVFR	100 / 9 AA	34
Phosphosite 1:	spermidine synthase	P19623	S46	QLLHHRRSRYQDILV	100 / 7 AA	34
Phosphosite 2:	DNAJC1	Q96KC8	Y125	DDERRQRYDDILING	77 / 9 AA	64
Phosphosite 3:	PTPN22	Q9Y2R2	Y60	KNIKKNRYKDILPYD	55 / 9 AA	92
Phosphosite 4:	MIXL1	Q9H2W2	Y110	LVFRRTRYPDIHLRE	75 / 8 AA	25
Phosphosite 5:	PTPN12	Q05209	Y64	ENVKKNRYKDILPFD	55 / 9 AA	88
Phosphosite 6:	PTPN13	Q12923	Y2243	ENRRKNRYKNILPYD	55 / 9 AA	277
Phosphosite 7:	SNX7	Q9UNH6	Y74	EFEVRRRYQDFLWLK	75 / 8 AA	45
Phosphosite 8:	IQGAP2	Q13576	Y1393	HVSSENKYQDILNEI	71 / 7 AA	181
Phosphosite 9:	RAB7B	Q96AH8	Y175	ASRALSRYQSILENH	85 / 7 AA	23
Phosphosite 10:	RAB7B	Q96AH8	S177	RALSRYQSILENHLT	85 / 7 AA	23
Phosphosite 11:	ANGPTL2	Q9UKU9	Y462	GGHYRSRYQDGVYWA	100 / 6 AA	57
Phosphosite 12:	ANGPTL6	Q8NI99	Y442	GGHYRSRYQDGVYWA	100 / 6 AA	52
Phosphosite 13:	PTPN20A	Q4JDL3	Y189	SNREKNRYRDILPYD	62 / 8 AA	48
Phosphosite 14:	aven	Q9NQS1	Y121	IVSNWDRYQDIEKEV	71 / 7 AA	39
Phosphosite 15:	APOBEC3H	Q6NTF7	Y191	GVRAQGRYMDILCDA	62 / 8 AA	24
Phosphosite 16:	DHX37	Q8IY37	Y380	EAHERSVYTDILIGL	75 / 8 AA	130
Phosphosite 17:	TMEM22	Q8TBE7	Y403	RNLRRQDYQEILDSP	66 / 9 AA	46
Phosphosite 18:	SLTM	Q9NWH9	Y576	RPSRRGRYEKIHGRS	62 / 8 AA	117
Phosphosite 19:	GOLGA4	Q13439	Y2059	LKRTAKRYEEILDAR	66 / 6 AA	261
Phosphosite 20:	SYNE1	Q8NF91	Y4605	LHTQLAKYQNILEQS	57 / 7 AA	1011