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:	FBXO21
Human P-Site:	Y270
P-Site Sequence:	DAMNYVLYDQLKFKG
UniProt:	O94952
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	FBXO21	O94952	Y270	DAMNYVLYDQLKFKG	100 / 9 AA	72
Phosphosite 1:	C1orf158	Q8N1D5	Y143	PPTNYGLYEQLKQRQ	77 / 9 AA	23
Phosphosite 2:	NCLN	Q969V3	Y507	RDPEFVFYDQLKQVM	66 / 9 AA	63
Phosphosite 3:	TEP1	Q99973	Y629	AMRIPVLYEQLKREK	85 / 7 AA	290
Phosphosite 4:	IQCH	Q86VS3	Y943	QGTVFILYEHLKRHK	50 / 8 AA	117
Phosphosite 5:	CRNKL1	Q9BZJ0	Y543	LWINYALYEELEAKD	62 / 8 AA	100
Phosphosite 6:	FBXO21	O94952	Y267	QVLDAMNYVLYDQLK	100 / 6 AA	72
Phosphosite 7:	NRP2	O60462	Y913	ENYNFELYDGLKHKV	66 / 9 AA	105
Phosphosite 8:	ITPR2	Q14571	Y1811	EKFFKVLYDRMKAAQ	71 / 7 AA	308
Phosphosite 9:	MTX2	O75431	Y25	WPENATLYQQLKGEQ	66 / 9 AA	30
Phosphosite 10:	SUMF2	Q8NBJ7	Y228	AQNNYGLYDLLGNVW	75 / 8 AA	34
Phosphosite 11:	TCEB3B	Q8IYF1	Y389	SCEKYLTYDQLRKQK	55 / 9 AA	84
Phosphosite 12:	PNPO	Q9NVS9	Y212	SWGGYVLYPQVMEFW	55 / 9 AA	30
Phosphosite 13:	SHMT1	P34896	Y183	PDTGYINYDQLEENA	71 / 7 AA	53
Phosphosite 14:	MED12	Q93074	Y726	EGTLGVLYDQPRHVQ	71 / 7 AA	243
Phosphosite 15:	PSMD3	O43242	Y264	NYLHYSLYDQAEKLV	71 / 7 AA	61
Phosphosite 16:	FCRL3	Q96P31	S693	EELTVLYSELKKTHP	71 / 7 AA	81
Phosphosite 17:	FA2H	Q7L5A8	Y311	GLLGYVLYDMTHYYL	71 / 7 AA	43
Phosphosite 18:	FCRL3	Q96P31	Y692	HEELTVLYSELKKTH	71 / 7 AA	81
Phosphosite 19:	CDK9	P50750	Y262	NVDNYELYEKLELVK	62 / 8 AA	43
Phosphosite 20:	THOC1	Q96FV9	T346	KSSNYVLTDEQSLWI	71 / 7 AA	76