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:	CDK4
Human P-Site:	Y21
P-Site Sequence:	VGAYGTVYKARDPHS
UniProt:	P11802
Intern. Prot. ID:	IPI00007811

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CDK4	P11802	Y21	VGAYGTVYKARDPHS	100 / 9 AA	34
Phosphosite 1:	CDK12	Q9NYV4	Y742	EGTYGQVYKARDKDT	88 / 9 AA	164
Phosphosite 2:	CDK13	Q14004	Y720	EGTYGQVYKARDKDT	88 / 9 AA	165
Phosphosite 3:	MAP4K2	Q12851	Y31	AGTYGDVYKARDTVT	88 / 9 AA	92
Phosphosite 4:	CDK7	P50613	Y27	EGQFATVYKARDKNT	77 / 9 AA	39
Phosphosite 5:	CDK10	Q15131	Y54	EGTYGIVYRARDTQT	77 / 9 AA	41
Phosphosite 6:	CDK2	P24941	Y19	EGTYGVVYKARNKLT	77 / 9 AA	34
Phosphosite 7:	KHS1	Q9Y4K4	Y35	SGTYGDVYKARNVHT	77 / 9 AA	95
Phosphosite 8:	KHS2	Q8IVH8	Y31	SGTYGDVYKARNVNT	77 / 9 AA	101
Phosphosite 9:	CDK3	Q00526	Y19	EGTYGVVYKAKNRET	66 / 9 AA	35
Phosphosite 10:	CDK4	P11802	T19	IGVGAYGTVYKARDP	100 / 7 AA	34
Phosphosite 11:	CDK11	Q9BWU1	Y36	RGTYGHVYKARRKDG	87 / 8 AA	57
Phosphosite 12:	Cdc2L2	Q9UQ88	Y438	EGTYGVVYRAKDKKT	66 / 9 AA	91
Phosphosite 13:	CDK11B	P21127	Y453	EGTYGVVYRAKDKKT	66 / 9 AA	93
Phosphosite 14:	CDK1	P06493	Y19	EGTYGVVYKGRHKTT	66 / 9 AA	34
Phosphosite 15:	HRI	Q9BQI3	Y182	KGGYGRVYKVRNKLD	66 / 9 AA	71
Phosphosite 16:	PCTAIRE2	Q00537	Y207	EGTYATVYKGRSKLT	75 / 8 AA	60
Phosphosite 17:	STK10	O94804	Y51	DGAFGKVYKAKNKET	55 / 9 AA	112
Phosphosite 18:	TNIK	Q9UKE5	Y40	NGTYGQVYKGRHVKT	66 / 9 AA	155
Phosphosite 19:	MINK1	Q8N4C8	Y40	NGTYGQVYKGRHVKT	66 / 9 AA	150
Phosphosite 20:	HGK	O95819	Y40	NGTYGQVYKGRHVKT	66 / 9 AA	142