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:	S406
P-Site Sequence:	QHLVVRASKPAHLQA
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	S406	QHLVVRASKPAHLQA	100 / 9 AA	83
Phosphosite 1:	MUC5AC	P98088	S72	TIPVVRASNPAHNGR	88 / 9 AA	527
Phosphosite 2:	FURIN	P09958	S401	QHLVVQTSKPAHLNA	77 / 9 AA	87
Phosphosite 3:	SPEG	Q15772	S2226	RPEPVRASKPAPPPQ	87 / 8 AA	354
Phosphosite 4:	MRF	Q9Y2G1	S532	ERIIVRASNPGQFES	55 / 9 AA	124
Phosphosite 5:	FAM13C1	Q8NE31	T126	ECQVRAGTPAHESPQ	75 / 8 AA	66
Phosphosite 6:	C8orf44	Q96CB5	S62	RSPEVRSSKPAWPTW	75 / 8 AA	18
Phosphosite 7:	GCLC	P48506	S231	DDEASRASKPDHIYM	85 / 7 AA	73
Phosphosite 8:	SYVN1	Q86TM6	S337	RMDVLRASLPAQSPP	66 / 9 AA	68
Phosphosite 9:	DNMBP	Q6XZF7	S642	PPLVVRPSRPAPLPP	75 / 8 AA	177
Phosphosite 10:	C8orf44	Q96CB5	S61	GRSPEVRSSKPAWPT	85 / 7 AA	18
Phosphosite 11:	KIAA2018	Q68DE3	S1390	SNSVVPVSNPAHGDG	66 / 9 AA	241
Phosphosite 12:	MYCBP2	O75592	S1882	VSTVVRASKDLLHRA	100 / 6 AA	510
Phosphosite 13:	AIFM3	Q96NN9	S168	EKVYVRASKQALQLQ	85 / 7 AA	67
Phosphosite 14:	PPP1CC	P36873	S22	RLLEVRGSKPGKNVQ	71 / 7 AA	37
Phosphosite 15:	USE1	Q9NZ43	S51	QALKVHASKPASEVI	85 / 7 AA	29
Phosphosite 16:	coronin 1A	P31146	S9	SRQVVRSSKFRHVFG	66 / 9 AA	51
Phosphosite 17:	IPO9	Q96P70	T681	LTTVVRNTKPPLSQL	62 / 8 AA	116
Phosphosite 18:	SHANK2	Q9UPX8	S400	PEEIVPASKPSRAAE	55 / 9 AA	159
Phosphosite 19:	C2orf61	Q8N801	S27	GESFITASKPAQKTS	62 / 8 AA	20
Phosphosite 20:	JMJD3	O15054	S1143	AADVVRASRNAKVKG	75 / 8 AA	180