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:	T257
P-Site Sequence:	LCSKNPSTNFQEPVQ
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	T257	LCSKNPSTNFQEPVQ	100 / 9 AA	34
Phosphosite 1:	spermidine synthase	P19623	S256	MLCSKNPSTNFQEPV	100 / 8 AA	34
Phosphosite 2:	BMAL1	O00327	T44	RKRKGSSTDYQESMD	55 / 9 AA	69
Phosphosite 3:	PAMR1	Q6UXH9	T589	AASRDLSTSFQESHI	55 / 9 AA	80
Phosphosite 4:	GAPDH	P04406	T75	VINGNPITIFQERDP	75 / 8 AA	36
Phosphosite 5:	MORC1	Q86VD1	Y501	VLPSSTNYQEKEFFD	71 / 7 AA	113
Phosphosite 6:	CFLAR	O15519	S198	QKSLKDPSNNFRLHN	62 / 8 AA	55
Phosphosite 7:	SOX4	Q06945	S411	DLLDLNPSSNFESMS	71 / 7 AA	47
Phosphosite 8:	GNPTAB	Q3T906	T178	AKPKNPSTNVSVVVF	100 / 6 AA	144
Phosphosite 9:	SOX4	Q06945	S412	LLDLNPSSNFESMSL	71 / 7 AA	47
Phosphosite 10:	GPR112	Q8IZF6	T530	AETELTSTNFQDVSL	83 / 6 AA	301
Phosphosite 11:	E2F4	Q16254	S334	SGPNPSTSFEPIKAD	71 / 7 AA	44
Phosphosite 12:	E2F4	Q16254	S332	SSSGPNPSTSFEPIK	71 / 7 AA	44
Phosphosite 13:	PAMR1	Q6UXH9	S590	ASRDLSTSFQESHIT	62 / 8 AA	80
Phosphosite 14:	SULT1E1	P49888	T237	EMKNNPSTNYTTLPD	71 / 7 AA	35
Phosphosite 15:	DNA2	P51530	T231	FMHKNTSTDFPQMQL	55 / 9 AA	120
Phosphosite 16:	TSC22D2	O75157	S656	GDEDRNPSTAFYQAF	71 / 7 AA	79
Phosphosite 17:	ZNF518B	Q9C0D4	T251	KASNPRTTFQNKWSD	71 / 7 AA	120
Phosphosite 18:	KIAA0774	Q5JR59	S554	QPTTPSSSFQDVSVF	57 / 7 AA	150
Phosphosite 19:	BMAL1	O00327	Y46	RKGSSTDYQESMDTD	57 / 7 AA	69
Phosphosite 20:	PHF20L1	A8MW92	T53	YNQDFDSTNFEESQD	83 / 6 AA	62