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:	S175
P-Site Sequence:	DVIITDSSDPMGPAE
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	S175	DVIITDSSDPMGPAE	100 / 9 AA	34
Phosphosite 1:	Putative IQ motif and ankyrin repeat domain-containing protein LOC642574	A8MXQ7	S467	FGVWTDSSDLMGVPR	87 / 8 AA	68
Phosphosite 2:	HOOK1	Q9UJC3	S112	LNQITECSDPVELGR	62 / 8 AA	85
Phosphosite 3:	TRNT1	Q96Q11	S340	LIKATDSSDPLKPYQ	85 / 7 AA	50
Phosphosite 4:	TRNT1	Q96Q11	S339	DLIKATDSSDPLKPY	85 / 7 AA	50
Phosphosite 5:	DEPP	Q9NTK1	S142	PHRQMDSSKPMGAPR	85 / 7 AA	23
Phosphosite 6:	LOC375337	Q8N9V7	S95	QVSPSDSSDPRGLEA	75 / 8 AA	191
Phosphosite 7:	EFCAB5	A4FU69	T337	QLDITDSTEPRLNKM	62 / 8 AA	173
Phosphosite 8:	EFCAB5	A4FU69	S336	KQLDITDSTEPRLNK	62 / 8 AA	173
Phosphosite 9:	TMEM183A	Q8IXX5	S97	PCDIIDSSDEMDAQE	66 / 9 AA	43
Phosphosite 10:	TMEM183B	Q1AE95	S97	PYDIIDSSDEMDAQE	66 / 9 AA	43
Phosphosite 11:	TMEM183A	Q8IXX5	S96	EPCDIIDSSDEMDAQ	75 / 8 AA	43
Phosphosite 12:	TMEM183B	Q1AE95	S96	EPYDIIDSSDEMDAQ	75 / 8 AA	43
Phosphosite 13:	REL	Q04864	S503	VNMMTTSSDSMGETD	66 / 9 AA	69
Phosphosite 14:	SYT10	Q6XYQ8	S399	AMDITGSSDPYVKVS	85 / 7 AA	59
Phosphosite 15:	RASA4	O43374	S26	AKDITGSSDPYCIVK	85 / 7 AA	90
Phosphosite 16:	Putative IQ motif and ankyrin repeat domain-containing protein LOC642574	A8MXQ7	S466	RFGVWTDSSDLMGVP	85 / 7 AA	68
Phosphosite 17:	REV1	Q9UBZ9	S1180	REWITTISDPMEEDI	75 / 8 AA	138
Phosphosite 18:	MGC45438	Q6UX73	S174	LGTGTDSSEPCGLSD	75 / 8 AA	49
Phosphosite 19:	C1orf85	Q8WWB7	S163	SWNNITDSLDPATLS	85 / 7 AA	44
Phosphosite 20:	ARHGEF1	Q92888	S631	LSHLRQSSDPMLSEF	62 / 8 AA	102