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:	PCSK4
Human P-Site:	Y313
P-Site Sequence:	DNCNCDGYTNSIHTL
UniProt:	Q6UW60
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	PCSK4	Q6UW60	Y313	DNCNCDGYTNSIHTL	100 / 9 AA	83
Phosphosite 1:	FURIN	P09958	Y308	DSCNCDGYTNSIYTL	100 / 9 AA	87
Phosphosite 2:	PCSK5	Q92824	Y326	DHCSCDGYTNSIYTI	88 / 9 AA	102
Phosphosite 3:	PCSK6	P29122	Y360	DYCSCDGYTNSIYTI	88 / 9 AA	106
Phosphosite 4:	PCSK1	P29120	Y322	DNCDCDGYTDSIYTI	77 / 9 AA	84
Phosphosite 5:	ERK2	P28482	Y205	IMLNSKGYTKSIDIW	66 / 9 AA	41
Phosphosite 6:	ZFHX4	Q86UP3	Y981	KCNACDYYTNSVDKL	75 / 8 AA	394
Phosphosite 7:	KY	Q8NBH2	Y228	QKTNCDGYAGLFERM	83 / 6 AA	64
Phosphosite 8:	PCSK5	Q92824	S329	SCDGYTNSIYTISIS	100 / 6 AA	102
Phosphosite 9:	PCSK6	P29122	S363	SCDGYTNSIYTISVS	100 / 6 AA	106
Phosphosite 10:	ZFHX3	Q15911	Y1048	KCNACDYYTNSLEKL	75 / 8 AA	404
Phosphosite 11:	EDDM3B	P56851	Y132	FHCSMDGYVDSIEDL	71 / 7 AA	18
Phosphosite 12:	Smad2	Q15796	Y196	ELPPLDDYTHSIPEN	71 / 7 AA	52
Phosphosite 13:	Smad2	Q15796	T197	LPPLDDYTHSIPENT	71 / 7 AA	52
Phosphosite 14:	ERK2	P28482	T206	MLNSKGYTKSIDIWS	62 / 8 AA	41
Phosphosite 15:	ERK1	P27361	T223	MLNSKGYTKSIDIWS	62 / 8 AA	43
Phosphosite 16:	MYO1H	Q8N1T3	Y858	FRGRKDGYTESLNQP	71 / 7 AA	119
Phosphosite 17:	ZAP70	P43403	Y292	DTLNSDGYTPEPARI	83 / 6 AA	70
Phosphosite 18:	MYO1H	Q8N1T3	T859	RGRKDGYTESLNQPF	71 / 7 AA	119
Phosphosite 19:	PDCD11	Q14690	Y119	VTEICDAYTKKLNEQ	50 / 8 AA	209
Phosphosite 20:	ZAP70	P43403	S289	RRIDTLNSDGYTPEP	83 / 6 AA	70