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:	SLC7A4
Human P-Site:	S421
P-Site Sequence:	FQKSSPPSSPGPASP
UniProt:	O43246
Intern. Prot. ID:	IPI00748296

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	SLC7A4	O43246	S421	FQKSSPPSSPGPASP	100 / 9 AA	68
Phosphosite 1:	WFIKKN1	Q96NZ8	S166	HVLSWPPSSPGPPET	88 / 9 AA	59
Phosphosite 2:	SLC7A4	O43246	S422	QKSSPPSSPGPASPG	100 / 8 AA	68
Phosphosite 3:	KIAA0467	Q5T011	S1418	SLALWPPSSPGPPDP	87 / 8 AA	278
Phosphosite 4:	RGL3	Q3MIN7	S573	PAGSPPASPGPQGPS	87 / 8 AA	78
Phosphosite 5:	WFIKKN1	Q96NZ8	S167	VLSWPPSSPGPPETT	87 / 8 AA	59
Phosphosite 6:	KIAA0467	Q5T011	S1419	LALWPPSSPGPPDPL	87 / 8 AA	278
Phosphosite 7:	MMACHC	Q9Y4U1	S279	PRVSPPASPGP____	87 / 8 AA	32
Phosphosite 8:	KCNK15	Q9H427	S311	LGFSPPSSPGVVRGG	100 / 7 AA	36
Phosphosite 9:	ENHO	Q6UWT2	S51	LSESSPNSSPGPCPE	88 / 9 AA	8
Phosphosite 10:	TTC31	Q49AM3	S214	DGDESPPSSPGNPVQ	100 / 7 AA	57
Phosphosite 11:	KCNK15	Q9H427	S310	NLGFSPPSSPGVVRG	100 / 7 AA	36
Phosphosite 12:	TTC31	Q49AM3	S215	GDESPPSSPGNPVQG	100 / 7 AA	57
Phosphosite 13:	ZNF335	Q9H4Z2	S745	AAPGPPPSSPGPPEI	100 / 7 AA	145
Phosphosite 14:	MMP21	Q8N119	S132	PPPSAPPSPPGPPPR	77 / 9 AA	65
Phosphosite 15:	ZNF335	Q9H4Z2	S746	APGPPPSSPGPPEIP	100 / 7 AA	145
Phosphosite 16:	ZIC5	Q96T25	S558	HCKSPPPSPGPLGYS	87 / 8 AA	66
Phosphosite 17:	ITPKA	P23677	T94	EEPDVPPTSPGPPER	85 / 7 AA	51
Phosphosite 18:	RELL1	Q8IUW5	S161	TPGSPPVSPGPLSPG	87 / 8 AA	29
Phosphosite 19:	CABP4	P57796	S87	PAGAPPASPGPASSR	75 / 8 AA	30
Phosphosite 20:	Bim	O43521	S69	GPLAPPASPGPFATR	75 / 8 AA	22