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:	S1316
P-Site Sequence:	MSNKQPNSGIENFLA
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	S1316	MSNKQPNSGIENFLA	100 / 9 AA	194
Phosphosite 1:	RPS23	P62266	S64	VEAKQPNSAIRKCVR	85 / 7 AA	16
Phosphosite 2:	RPN1	P04843	S272	DYQRQPDSGISSIRS	71 / 7 AA	69
Phosphosite 3:	ESPN	B1AK53	S352	LEAKQPDSGMSSPNT	71 / 7 AA	92
Phosphosite 4:	HSPA13	P48723	S185	FDLKQRNSTIEAANL	75 / 8 AA	52
Phosphosite 5:	BCL9L	Q86UU0	S156	LERKQPYSGDEWCSG	66 / 9 AA	157
Phosphosite 6:	TCOF1	Q13428	S1098	VARTQPSSGVDSAVG	44 / 9 AA	152
Phosphosite 7:	KIF7	Q2M1P5	S462	SSASGPDSGIESASV	71 / 7 AA	151
Phosphosite 8:	FARP2	O94887	S1043	QDGPQPSSGLEGMVR	71 / 7 AA	120
Phosphosite 9:	FARP2	O94887	S1042	VQDGPQPSSGLEGMV	71 / 7 AA	120
Phosphosite 10:	TCOF1	Q13428	S1097	PVARTQPSSGVDSAV	50 / 8 AA	152
Phosphosite 11:	NFE2L1	Q14494	S120	VSGSQPNSGLALESS	71 / 7 AA	85
Phosphosite 12:	VAPA	Q9P0L0	S65	RYCVRPNSGIIDPGS	62 / 8 AA	28
Phosphosite 13:	VAPB	O95292	S58	RYCVRPNSGIIDAGA	62 / 8 AA	27
Phosphosite 14:	SERINC2	Q96SA4	S266	VQDAQPNSGLLQASV	83 / 6 AA	51
Phosphosite 15:	C6orf35	Q9NWH2	S13	AATGQPASGLEAPGS	71 / 7 AA	15
Phosphosite 16:	RPS6KB1	P23443	S503	LPIRQPNSGPYKKQA	83 / 6 AA	59
Phosphosite 17:	NDUFV3	P56181	S101	FRMPQPSSGRESPRH	62 / 8 AA	12
Phosphosite 18:	UBE4B	O95155	S124	MSQVDVDSGIENMEV	62 / 8 AA	146
Phosphosite 19:	FLJ40925	Q8N7K9	S6	__MKQPSSGTPVSSG	71 / 7 AA	60
Phosphosite 20:	FLJ32110	A4D1E1	S405	TVHLNPNSRIENREK	85 / 7 AA	153