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:	CTK
Human P-Site:	S499
P-Site Sequence:	SGQDADGSTSPRSQE
UniProt:	P42679
Intern. Prot. ID:	IPI00000868

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CTK	P42679	S499	SGQDADGSTSPRSQE	100 / 9 AA	56
Phosphosite 1:	CTK	P42679	T500	GQDADGSTSPRSQEP	100 / 8 AA	56
Phosphosite 2:	CTK	P42679	S501	QDADGSTSPRSQEP_	100 / 7 AA	56
Phosphosite 3:	CREB3L1	Q96BA8	S219	HGSDSDGSQSPRSLP	77 / 9 AA	57
Phosphosite 4:	FOXJ3	Q9UPW0	S221	YNTDQDGSDSPRSSL	77 / 9 AA	69
Phosphosite 5:	CPNE6	O95741	T99	FDAEDGATSPRNDTF	85 / 7 AA	62
Phosphosite 6:	CPNE6	O95741	S100	DAEDGATSPRNDTFL	85 / 7 AA	62
Phosphosite 7:	MBD5	Q9P267	S236	SQIYGDGSISPRTDP	75 / 8 AA	160
Phosphosite 8:	MBD5	Q9P267	S238	IYGDGSISPRTDPLG	85 / 7 AA	160
Phosphosite 9:	SESN2	P58004	S225	PEGDADGSPAPQAPT	66 / 9 AA	54
Phosphosite 10:	PRSS33	Q8NF86	S101	ALRLGSTSPRTLSVP	100 / 6 AA	30
Phosphosite 11:	SPARCL1	Q14515	T331	PTDDGNTTPRNHGVD	71 / 7 AA	75
Phosphosite 12:	PRSS33	Q8NF86	S99	LGALRLGSTSPRTLS	100 / 6 AA	30
Phosphosite 13:	CSDE1	O75534	T481	AKDVEGSTSPQIGDK	62 / 8 AA	89
Phosphosite 14:	SPARCL1	Q14515	T330	EPTDDGNTTPRNHGV	71 / 7 AA	75
Phosphosite 15:	GPR123	Q86SQ6	S226	QGCWGSTSPRGQAVS	100 / 6 AA	137
Phosphosite 16:	PRSS33	Q8NF86	T100	GALRLGSTSPRTLSV	100 / 6 AA	30
Phosphosite 17:	C20orf7	Q5TEU4	S40	VSPRGSTSPRTLNIF	100 / 6 AA	39
Phosphosite 18:	GPR123	Q86SQ6	S224	GAQGCWGSTSPRGQA	100 / 6 AA	137
Phosphosite 19:	WRNIP1	Q96S55	S151	AAAAAAGSASPRSWD	75 / 8 AA	72
Phosphosite 20:	ZBTB8A	Q96BR9	S159	SGGWQEGSSSPRSHL	71 / 7 AA	50