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:	USE1
Human P-Site:	S51
P-Site Sequence:	QALKVHASKPASEVI
UniProt:	Q9NZ43
Intern. Prot. ID:	IPI00020515

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	USE1	Q9NZ43	S51	QALKVHASKPASEVI	100 / 9 AA	29
Phosphosite 1:	CCDC88A	Q3V6T2	S1583	TGSRVHASRPASLDS	77 / 9 AA	216
Phosphosite 2:	COL27A1	Q8IZC6	S469	AKITSHASKPASART	100 / 7 AA	187
Phosphosite 3:	APOB	P04114	S3605	ALVQVHASQPSSFHD	66 / 9 AA	516
Phosphosite 4:	SPEG	Q15772	S2226	RPEPVRASKPAPPPQ	75 / 8 AA	354
Phosphosite 5:	DUX3	Q96PT4	S8	MPAEVHGSPPASLCP	66 / 9 AA	22
Phosphosite 6:	DUX5	Q96PT3	S8	MPAEVHGSPPASLCP	66 / 9 AA	22
Phosphosite 7:	PCSK4	Q6UW60	S406	QHLVVRASKPAHLQA	85 / 7 AA	83
Phosphosite 8:	ZNF280C	Q8ND82	T577	STASKVNTSKPRGRI	71 / 7 AA	83
Phosphosite 9:	Rabphilin 3A	Q9Y2J0	S276	RANSVQASRPAPGSV	71 / 7 AA	77
Phosphosite 10:	UBAP2	Q5T6F2	S1107	LQPKSQASKPAYGNS	75 / 8 AA	117
Phosphosite 11:	C8orf44	Q96CB5	S62	RSPEVRSSKPAWPTW	62 / 8 AA	18
Phosphosite 12:	MERTK	Q12866	S922	VTAEVHDSKPHEGRY	83 / 6 AA	110
Phosphosite 13:	FURIN	P09958	S401	QHLVVQTSKPAHLNA	71 / 7 AA	87
Phosphosite 14:	Plk1	P53350	S387	QLHSVNASKPSERGL	71 / 7 AA	68
Phosphosite 15:	RSC1A1	Q92681	S367	HELLVVSSKPASENT	75 / 8 AA	67
Phosphosite 16:	QSER1	Q2KHR3	S689	LILKVHESKVQEQHD	83 / 6 AA	190
Phosphosite 17:	TTBK2	Q6IQ55	S516	EEYLPDASKPASANT	85 / 7 AA	137
Phosphosite 18:	TRAK1	Q9UPV9	S812	PYDNFLASKPASSIL	100 / 6 AA	106
Phosphosite 19:	USP31	Q70CQ4	S796	WVSRLPGSKPASVTS	55 / 9 AA	147
Phosphosite 20:	C8orf44	Q96CB5	S61	GRSPEVRSSKPAWPT	71 / 7 AA	18