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:	Rb
Human P-Site:	T543
P-Site Sequence:	IKAEGNLTREMIKHL
UniProt:	P06400
Intern. Prot. ID:	IPI00302829

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	Rb	P06400	T543	IKAEGNLTREMIKHL	100 / 9 AA	106
Phosphosite 1:	CTCF	P49711	T717	DAPNGDLTPEMILSM	75 / 8 AA	83
Phosphosite 2:	CUL4A	Q13619	T544	TPMEVHLTPEMIKLQ	66 / 9 AA	88
Phosphosite 3:	ZFYVE28	Q9HCC9	T212	ALDFGYLTQDMIDDY	62 / 8 AA	96
Phosphosite 4:	ARC	Q7LC44	S280	QYSEGTLSREAIQRE	66 / 9 AA	45
Phosphosite 5:	LUZP1	Q86V48	T103	LEEEENLTRELKSEI	75 / 8 AA	120
Phosphosite 6:	MGAT1	P26572	T51	DGDPASLTREVIRLA	62 / 8 AA	51
Phosphosite 7:	ABCF2	Q9UG63	T148	HIDIYHLTREMPPSD	83 / 6 AA	71
Phosphosite 8:	NRAP	Q86VF7	T287	IGAEGILTRECADQY	85 / 7 AA	197
Phosphosite 9:	NES	P48681	T1115	LGDPGHLTREEVMEP	62 / 8 AA	177
Phosphosite 10:	FBXO8	Q9NRD0	T26	YSEQGYLTREQSRRM	62 / 8 AA	37
Phosphosite 11:	ZNF23	P17027	T56	IQTDNDLTKEMYEGK	50 / 8 AA	73
Phosphosite 12:	QRFPR	Q96P65	T21	LLRDHNLTREQFIAL	55 / 9 AA	49
Phosphosite 13:	C17orf97	Q6ZQX7	T439	LCFEGNLTPKLLHSD	55 / 9 AA	50
Phosphosite 14:	FBXO8	Q9NRD0	Y24	EGYSEQGYLTREQSR	71 / 7 AA	37
Phosphosite 15:	SIL1	Q9H173	T353	AEEEAELTQEMSPEK	62 / 8 AA	52
Phosphosite 16:	CDC42EP4	Q9H3Q1	T23	RRSRADLTAEMISAP	62 / 8 AA	38
Phosphosite 17:	EPS15	P42566	T304	IDPPHVLTPEMIPPS	83 / 6 AA	99
Phosphosite 18:	CPLX2	Q6PUV4	T95	QPCEGSLTRPKKAIP	62 / 8 AA	15
Phosphosite 19:	CPLX1	O14810	T95	ANSEGSLTRPKKAIP	62 / 8 AA	15
Phosphosite 20:	CYP19A1	P11511	T292	AEKRGDLTRENVNQC	83 / 6 AA	58