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:	KRT4
Human P-Site:	S521
P-Site Sequence:	GSVSGSSSSKIISTT
UniProt:	P19013
Intern. Prot. ID:	IPI00290078

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	KRT4	P19013	S521	GSVSGSSSSKIISTT	100 / 9 AA	57
Phosphosite 1:	KRT4	P19013	S522	SVSGSSSSKIISTTT	100 / 8 AA	57
Phosphosite 2:	KRT4	P19013	S520	GGSVSGSSSSKIIST	100 / 8 AA	57
Phosphosite 3:	T-cell receptor alpha chain V region PY14	P01737	S122	LEPNSSASKIIFGSG	75 / 8 AA	15
Phosphosite 4:	GABRA4	P48169	T515	PPPSGSGTSKIDKYA	75 / 8 AA	62
Phosphosite 5:	STAG1	Q8WVM7	S1068	MSVNSGSSSSKTSSV	87 / 8 AA	144
Phosphosite 6:	RGS22	Q8NE09	S1016	ESKWISSSCKIIAFR	85 / 7 AA	147
Phosphosite 7:	FAM83B	Q5T0W9	S566	CTTGSSNSTIIGSQG	75 / 8 AA	115
Phosphosite 8:	BBX	Q8WY36	S414	PDFSYSASSKIIISD	85 / 7 AA	105
Phosphosite 9:	STAG1	Q8WVM7	S1069	SVNSGSSSSKTSSVR	87 / 8 AA	144
Phosphosite 10:	MED1	Q15648	S1169	GLSSGSSSTKMKPQG	75 / 8 AA	168
Phosphosite 11:	FAM190A	Q9C0I3	S496	RKQRAGSSSSKMNSL	85 / 7 AA	100
Phosphosite 12:	STAG1	Q8WVM7	S1067	RMSVNSGSSSSKTSS	100 / 7 AA	144
Phosphosite 13:	FAM190A	Q9C0I3	S497	KQRAGSSSSKMNSLD	85 / 7 AA	100
Phosphosite 14:	MED12	Q93074	S654	KEAEGSSSSKLEDPG	85 / 7 AA	243
Phosphosite 15:	SUV420H1	Q4FZB7	S774	NSGSGSSSTKLKIQL	75 / 8 AA	99
Phosphosite 16:	MED1	Q15648	S1168	HGLSSGSSSTKMKPQ	75 / 8 AA	168
Phosphosite 17:	SRMS	Q9H3Y6	S385	DIYSPSSSSKIPVKW	87 / 8 AA	55
Phosphosite 18:	SRMS	Q9H3Y6	S384	DDIYSPSSSSKIPVK	87 / 8 AA	55
Phosphosite 19:	FAM190A	Q9C0I3	S498	QRAGSSSSKMNSLDV	85 / 7 AA	100
Phosphosite 20:	NPY5R	Q15761	S327	RSQLSSSSKFIPGVP	85 / 7 AA	51