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:	XRN1
Human P-Site:	S844
P-Site Sequence:	RAFDSRFSNIKTLDD
UniProt:	Q8IZH2
Intern. Prot. ID:	IPI00657805

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	XRN1	Q8IZH2	S844	RAFDSRFSNIKTLDD	100 / 9 AA	194
Phosphosite 1:	SOCS7	O14512	S513	LYPVSRFSNVKSLQH	75 / 8 AA	54
Phosphosite 2:	MED13	Q9UHV7	S509	PDSQVRFSNIRTNDV	85 / 7 AA	239
Phosphosite 3:	ZNF44	P15621	Y566	KAFSRFSYLKTHERT	75 / 8 AA	77
Phosphosite 4:	ZNF44	P15621	S565	GKAFSRFSYLKTHER	75 / 8 AA	77
Phosphosite 5:	MARE	Q12980	S65	QDGDSRFSDVILATI	71 / 7 AA	64
Phosphosite 6:	Rho guanine nucleotide exchange factor 38	Q9NXL2	S139	LDVDSLFSNIESVHQ	66 / 9 AA	26
Phosphosite 7:	KCNRG	Q8N5I3	S21	KIFTTRFSTIKQFPA	71 / 7 AA	31
Phosphosite 8:	SLC35F5	Q8WV83	S197	KKSRVRFSNIMEIRQ	83 / 6 AA	59
Phosphosite 9:	FRY	Q5TBA9	S1563	KESDERFSNVIRAHT	71 / 7 AA	339
Phosphosite 10:	RUNX2	Q13950	S388	SLTESRFSNPRMHYP	83 / 6 AA	57
Phosphosite 11:	RUNX2	Q13950	S385	SISSLTESRFSNPRM	83 / 6 AA	57
Phosphosite 12:	RANBP6	O60518	S280	LCGDSRLSNLQRQLA	62 / 8 AA	125
Phosphosite 13:	ZNF492	Q9P255	S378	SKAFSRFSHLTTHKR	62 / 8 AA	66
Phosphosite 14:	ZNF729	A6NN14	S1061	SKAFSRFSHLTTHKR	62 / 8 AA	136
Phosphosite 15:	ZNF98	A6NK75	S378	SKAFSRFSHLTTHKR	62 / 8 AA	61
Phosphosite 16:	YI017	A6NK21	S384	SKAFSRFSHLTTHKR	62 / 8 AA	63
Phosphosite 17:	KCNRG	Q8N5I3	T22	IFTTRFSTIKQFPAS	71 / 7 AA	31
Phosphosite 18:	FN1	P02751	T1276	PPTDLRFTNIGPDTM	71 / 7 AA	263
Phosphosite 19:	C1orf128	Q9GZP4	S147	ATKISRFSNVYHLSI	83 / 6 AA	24
Phosphosite 20:	NXPH3	O95157	S107	FGWGDFYSNIKTVAL	83 / 6 AA	28