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:	T687
P-Site Sequence:	QGSCMGPTTPDSRPR
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	T687	QGSCMGPTTPDSRPR	100 / 9 AA	83
Phosphosite 1:	PCSK4	Q6UW60	T688	GSCMGPTTPDSRPRL	100 / 8 AA	83
Phosphosite 2:	MUC6	Q6W4X9	T1199	CVPCMPPTTPQPPTT	66 / 9 AA	252
Phosphosite 3:	USP19	O94966	T1283	PLPRGPTTPDEGCLR	85 / 7 AA	146
Phosphosite 4:	USP19	O94966	T1282	GPLPRGPTTPDEGCL	85 / 7 AA	146
Phosphosite 5:	TXNDC3	Q8N427	T539	WRRLMGPTDPEEAKL	71 / 7 AA	67
Phosphosite 6:	RALGAPB	Q86X10	T733	SGGSTEPTTPDSERP	66 / 9 AA	167
Phosphosite 7:	GLUD2	P49448	T409	AEGANGPTTPEADKI	71 / 7 AA	61
Phosphosite 8:	GLUD1	P00367	T409	AEGANGPTTPEADKI	71 / 7 AA	61
Phosphosite 9:	RALGAPB	Q86X10	T734	GGSTEPTTPDSERPA	85 / 7 AA	167
Phosphosite 10:	LLGL1	Q15334	T1000	AHSMGPDTPEPPEAA	62 / 8 AA	115
Phosphosite 11:	GLUD2	P49448	T410	EGANGPTTPEADKIF	71 / 7 AA	61
Phosphosite 12:	GLUD1	P00367	T410	EGANGPTTPEADKIF	71 / 7 AA	61
Phosphosite 13:	PKN1	Q16512	T353	PSMGGPGTPDSRPPF	85 / 7 AA	104
Phosphosite 14:	KIAA1109	Q2LD37	T4296	LPTSGPGTPDSIEGV	85 / 7 AA	555
Phosphosite 15:	SH3GLB2	Q9NR46	T108	AASELGPTTPYGKTL	83 / 6 AA	44
Phosphosite 16:	SH3GLB2	Q9NR46	T109	ASELGPTTPYGKTLI	83 / 6 AA	44
Phosphosite 17:	PYHIN1	Q6K0P9	T444	KTPQMPPTTPSSSSF	75 / 8 AA	55
Phosphosite 18:	IFI16	Q16666	T434	RTPQMPPTTPSSSFF	75 / 8 AA	88
Phosphosite 19:	LRCH4	O75427	S521	QSGSGPSSPDSVLRP	71 / 7 AA	73
Phosphosite 20:	PYHIN1	Q6K0P9	T445	TPQMPPTTPSSSSFT	75 / 8 AA	55