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:	S183
P-Site Sequence:	DPMGPAESLFKESYY
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	S183	DPMGPAESLFKESYY	100 / 9 AA	34
Phosphosite 1:	MAGEA4	P43358	S104	STSPDAESLFREALS	85 / 7 AA	35
Phosphosite 2:	TBN	Q7Z7C8	S202	AKTGETQSLFKDDVS	55 / 9 AA	34
Phosphosite 3:	SLC5A2	P31639	S605	EPQAPAPSLFRQCLL	55 / 9 AA	73
Phosphosite 4:	DNA2	P51530	S808	RALGMSESLFKRLEQ	75 / 8 AA	120
Phosphosite 5:	EXOC1	Q9NV70	S687	EFAGLAESIFKNAER	66 / 9 AA	102
Phosphosite 6:	KLC2	Q9H0B6	T387	GKYQDAETLYKEILT	71 / 7 AA	69
Phosphosite 7:	ZNF786	Q8N393	S159	LACGPSESTLKEGIP	66 / 9 AA	90
Phosphosite 8:	DNAH17	Q9UFH2	S702	EIPDSAESLFSENET	66 / 9 AA	512
Phosphosite 9:	KLC2	Q9H0B6	Y389	YQDAETLYKEILTRA	71 / 7 AA	69
Phosphosite 10:	KLC1	Q07866	Y404	FKQAETLYKEILTRA	71 / 7 AA	65
Phosphosite 11:	GMPPA	Q96IJ6	S373	RARMDSESLFKDGKL	71 / 7 AA	46
Phosphosite 12:	NEURL1B	A8MQ27	S322	RPLRPGESLFVEVGR	75 / 8 AA	59
Phosphosite 13:	ADCK2	Q7Z695	S83	AGAGPAESLPRAGPL	75 / 8 AA	69
Phosphosite 14:	EZH1	Q92800	S440	EWTGAEESLFRVFHG	62 / 8 AA	85
Phosphosite 15:	SLFN5	Q08AF3	S391	RVVYTPESLYKELFS	71 / 7 AA	101
Phosphosite 16:	C10orf47	Q86WR7	S328	GLPGPAESLRAGGQA	100 / 6 AA	46
Phosphosite 17:	IQCA1	Q86XH1	S497	TADRTIESLYKELVE	83 / 6 AA	95
Phosphosite 18:	MAGEA8	P43361	S106	PDPAHLESLFREALD	83 / 6 AA	35
Phosphosite 19:	IQCA1	Q86XH1	Y499	DRTIESLYKELVEEG	83 / 6 AA	95
Phosphosite 20:	HIF2A	Q99814	S361	FSMDQTESLFKPHLM	62 / 8 AA	96