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:	S838
P-Site Sequence:	ILVSIGESFGTSEKF
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	S838	ILVSIGESFGTSEKF	100 / 9 AA	106
Phosphosite 1:	ZNF289	Q8N6H7	S368	NPFSLGESFGSRWDT	75 / 8 AA	57
Phosphosite 2:	AGPS	O00116	S527	EYYVLGESFETSAPW	75 / 8 AA	73
Phosphosite 3:	ZMYM5	Q9UJ78	S34	SLMDIGDSFGHPACP	83 / 6 AA	75
Phosphosite 4:	NUPL1	Q9BVL2	S487	PQPSLGVSFGTPFGS	66 / 9 AA	61
Phosphosite 5:	SEC23B	Q15437	S378	GYMVMGDSFNTSLFK	62 / 8 AA	86
Phosphosite 6:	SEC23A	Q15436	S376	GYMVMGDSFNTSLFK	62 / 8 AA	86
Phosphosite 7:	SNX14	Q9Y5W7	S500	NTQKRGESFGISRIG	85 / 7 AA	110
Phosphosite 8:	Rb	P06400	T841	SIGESFGTSEKFQKI	100 / 6 AA	106
Phosphosite 9:	Zinc finger protein 891	A8MT65	S412	ECNQCGKSFGTSSYL	75 / 8 AA	64
Phosphosite 10:	SSH2	Q76I76	S40	QPRSISESFLTVKGA	75 / 8 AA	158
Phosphosite 11:	ZKSCAN2	Q63HK3	S756	RLLKYGESFGRSTRL	85 / 7 AA	111
Phosphosite 12:	MLL3	Q8NEZ4	S2312	TPRSQSDSFGTSQTA	66 / 9 AA	541
Phosphosite 13:	FNIP1	Q8TF40	S310	PRWSIEESFNLSDES	66 / 9 AA	131
Phosphosite 14:	eIF4E	P06730	S141	LLCLIGESFDDYSDD	83 / 6 AA	25
Phosphosite 15:	CYP4F22	Q6NT55	S479	PRNCIGQSFAMAELR	44 / 9 AA	62
Phosphosite 16:	SLC22A5	O76082	T515	FLPESFGTPLPDTID	83 / 6 AA	63
Phosphosite 17:	WDR21C	Q8NA75	S220	VVTGHQQSFGTSSDV	83 / 6 AA	44
Phosphosite 18:	EIF4E1B	A6NMX2	S166	LLCLIGESFEEHSRE	100 / 5 AA	28
Phosphosite 19:	INA	Q16352	S469	KTSQIGESFEEILEE	100 / 5 AA	55
Phosphosite 20:	RELN	P78509	S712	QTFPMFISESFGSSR	83 / 6 AA	388