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:	T267
P-Site Sequence:	QEPVQPLTQQQVAQM
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	T267	QEPVQPLTQQQVAQM	100 / 9 AA	34
Phosphosite 1:	THYN1	Q9P016	T209	RLSIQPLTQEEFDFV	62 / 8 AA	26
Phosphosite 2:	CNKSR1	Q969H4	T599	LGQPQPLTQEQWRSS	85 / 7 AA	80
Phosphosite 3:	HCFC1	P51610	T441	APAVQPLTQVGITLL	100 / 6 AA	209
Phosphosite 4:	ZFP276	Q8N554	T580	MSMVHPLTQTQDKAL	75 / 8 AA	67
Phosphosite 5:	FAM186A	A6NE01	T1544	QELGIPLTPQQVQAL	85 / 7 AA	263
Phosphosite 6:	NOL8	Q76FK4	T249	VIERPPLTQQQAAQK	85 / 7 AA	132
Phosphosite 7:	MYST3	Q92794	T1432	VQAVQSLTQEESSEH	62 / 8 AA	225
Phosphosite 8:	EFTUD1	Q7Z2Z2	T434	QNKPRPLTQEEIAQR	50 / 8 AA	125
Phosphosite 9:	ERK5	Q13164	T155	IHSSQPLTLEHVRYF	62 / 8 AA	88
Phosphosite 10:	ETAA1	Q9NY74	T621	CDDIERLTQQQDIRK	62 / 8 AA	103
Phosphosite 11:	MCAT	Q8IVS2	T282	EPAVEPLTQALKAVD	83 / 6 AA	43
Phosphosite 12:	CTNNB1	P35222	T75	QGFSQSFTQEQVADI	62 / 8 AA	85
Phosphosite 13:	MYST4	Q8WYB5	T1549	VQAVQSLTQESSEQD	71 / 7 AA	231
Phosphosite 14:	AUP1	Q9Y679	T255	QDVVQPLTLQVQRPL	85 / 7 AA	53
Phosphosite 15:	STUB1	Q9UNE7	T276	PVTRSPLTQEQLIPN	71 / 7 AA	35
Phosphosite 16:	TET3	O43151	T1270	QEPVDPLTQAEPVPR	62 / 8 AA	179
Phosphosite 17:	CDKL5	O76039	T863	DPRFQPLTAQQTKNS	75 / 8 AA	116
Phosphosite 18:	ZNF609	O15014	T1219	VPVSSPLTQHQSYIP	83 / 6 AA	151
Phosphosite 19:	BRCA2	P51587	T2891	YLPSRALTRQQVRAL	62 / 8 AA	384
Phosphosite 20:	TOX	O94900	T440	MQQHQPLTMQQPLGN	85 / 7 AA	58