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:	REXO4
Human P-Site:	S92
P-Site Sequence:	PEKPLVISQMGSKKK
UniProt:	Q9GZR2
Intern. Prot. ID:	Isoform1 - IPI00010653

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	REXO4	Q9GZR2	S92	PEKPLVISQMGSKKK	100 / 9 AA	47
Phosphosite 1:	PRP1	P02810	S33	EDVPLVISDGGDSEQ	75 / 8 AA	17
Phosphosite 2:	NAV2	Q8IVL1	S1055	GKKNPVISQTGSWRR	85 / 7 AA	268
Phosphosite 3:	DDX31	Q9H8H2	S275	GRDALVRSQTGSGKT	66 / 9 AA	94
Phosphosite 4:	Smad5	Q99717	T452	QWLDKVLTQMGSPLN	71 / 7 AA	52
Phosphosite 5:	SMAD1	Q15797	T452	QWLDKVLTQMGSPHN	71 / 7 AA	52
Phosphosite 6:	Smad2	Q15796	T454	QWLDKVLTQMGSPSV	71 / 7 AA	52
Phosphosite 7:	SMAD3	P84022	T412	QWLDKVLTQMGSPSI	71 / 7 AA	48
Phosphosite 8:	Smad8	O15198	T454	QWLDKVLTQMGSPHN	71 / 7 AA	52
Phosphosite 9:	POLRMT	O00411	S1062	TESARLISHMGSVVE	71 / 7 AA	139
Phosphosite 10:	REV3	O60673	S2183	PQEPLVISPINTRAR	55 / 9 AA	353
Phosphosite 11:	ADRBK2	P35626	S514	KNFPLVISERWQQEV	71 / 7 AA	80
Phosphosite 12:	RAPGEF4	Q8WZA2	S320	QDTMLLLSQMGPDAH	62 / 8 AA	116
Phosphosite 13:	IRX1	P78414	S90	AADLSLFSQMGSQYE	71 / 7 AA	50
Phosphosite 14:	PTGR2	Q8N8N7	S242	NISDTVISQMNENSH	83 / 6 AA	38
Phosphosite 15:	GRIP1	Q9Y3R0	S603	PGDPLVISDIKKGSV	71 / 7 AA	122
Phosphosite 16:	CA8	P35219	S243	FRYPLTISQLQIEEF	71 / 7 AA	33
Phosphosite 17:	ABCC1	P33527	S847	VMSGGKISEMGSYQE	83 / 6 AA	172
Phosphosite 18:	LARP4	Q71RC2	S144	SKDLYLISQMDSDQF	71 / 7 AA	81
Phosphosite 19:	CCDC27	Q2M243	S360	TGAWGGVSQMGSVHE	83 / 6 AA	75
Phosphosite 20:	FAM48A	Q8NEM7	S702	QSQAAVLSQLGSVEN	71 / 7 AA	86