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:	RNF121
Human P-Site:	S224
P-Site Sequence:	PTKHLSDSVCAVCGQ
UniProt:	Q9H920
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	RNF121	Q9H920	S224	PTKHLSDSVCAVCGQ	100 / 9 AA	38
Phosphosite 1:	PALB2	Q86YC2	S766	QLAHLKDSVCLASDT	85 / 7 AA	131
Phosphosite 2:	Zfp827	Q17R98	S481	VKGSPHLSDSACLGQ	85 / 7 AA	119
Phosphosite 3:	Zfp827	Q17R98	S483	GSPHLSDSACLGQQR	85 / 7 AA	119
Phosphosite 4:	USP3	Q9Y6I4	S9	ECPHLSSSVCIAPDS	85 / 7 AA	59
Phosphosite 5:	C1orf167	Q5SNV9	T486	TAFHLSDTVPASSAS	75 / 8 AA	162
Phosphosite 6:	XPO1	O14980	S197	KSKHLKDSMCNEFSQ	71 / 7 AA	123
Phosphosite 7:	ARHGEF7	Q14155	S141	DIGLGSDSVCARPSS	100 / 6 AA	90
Phosphosite 8:	PPP1R3A	Q16821	S24	EVPNLSDSLCEDEEV	62 / 8 AA	126
Phosphosite 9:	USP54	Q70EL1	S444	DTGHLTDSECNQKHT	71 / 7 AA	187
Phosphosite 10:	USP54	Q70EL1	T442	SRDTGHLTDSECNQK	71 / 7 AA	187
Phosphosite 11:	LY6H	O94772	T50	KQCQPSDTVCASVRI	62 / 8 AA	15
Phosphosite 12:	NRAP	Q86VF7	S1511	RLNALHLSDKVYRNS	71 / 7 AA	197
Phosphosite 13:	C14orf49	Q6ZMZ3	S415	NLKPLSDSVIATIQE	75 / 8 AA	112
Phosphosite 14:	PPP1R3A	Q16821	S22	FLEVPNLSDSLCEDE	71 / 7 AA	126
Phosphosite 15:	AFG3L2	Q9Y4W6	S537	LIAARHLSDSINQKH	83 / 6 AA	89
Phosphosite 16:	AFG3L2	Q9Y4W6	S539	AARHLSDSINQKHFE	83 / 6 AA	89
Phosphosite 17:	CENTG2	Q9UPQ3	S501	SDTGLGDSVCSSPSI	71 / 7 AA	94
Phosphosite 18:	PHF17	Q6IE81	S137	DIRTLADSVCRYDLN	83 / 6 AA	96
Phosphosite 19:	C1orf167	Q5SNV9	S484	ERTAFHLSDTVPASS	83 / 6 AA	162
Phosphosite 20:	NUP188	Q5SRE5	T1124	HADIMHLTDSVVRRQ	71 / 7 AA	196