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:	T121
P-Site Sequence:	KAIEKGETLPTEARF
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	T121	KAIEKGETLPTEARF	100 / 9 AA	194
Phosphosite 1:	COL4A3	Q01955	T543	LKGEKGETLQPEGQV	77 / 9 AA	162
Phosphosite 2:	APC	P25054	T1689	GEFEKRDTIPTEGRS	66 / 9 AA	312
Phosphosite 3:	ACOT1	Q86TX2	T271	TLRYKGETLPPVGVN	100 / 6 AA	46
Phosphosite 4:	ACOT2	P49753	T333	TLRYKGETLPPVGVN	100 / 6 AA	53
Phosphosite 5:	FcGR2B	P31994	T267	ECREMGETLPEKPAN	85 / 7 AA	34
Phosphosite 6:	CRAMP1L	Q96RY5	T1004	GTHQDGDTLPTVGGS	62 / 8 AA	135
Phosphosite 7:	GPR98	Q8WXG9	T1060	IPVEKGETLIFEVGS	77 / 9 AA	693
Phosphosite 8:	IQCH	Q86VS3	T40	SPEEKGETLDIQSLE	100 / 6 AA	117
Phosphosite 9:	XRN1	Q8IZH2	T124	EKGETLPTEARFDSN	100 / 6 AA	194
Phosphosite 10:	TJP1	Q07157	T1692	LDKEKGETLLSPLVM	100 / 6 AA	195
Phosphosite 11:	FAM178B	Q8IXR5	T253	KIQAPGETFPTDWSP	71 / 7 AA	94
Phosphosite 12:	PSMC3	P17980	T166	LILETLPTEYDSRVK	100 / 6 AA	49
Phosphosite 13:	PEX6	Q13608	T130	LLVRRGETLPVPGPR	71 / 7 AA	104
Phosphosite 14:	EPHX1	P07099	T26	ISRDKEETLPLEDGW	66 / 9 AA	53
Phosphosite 15:	AP3M1	Q9Y2T2	T156	GSSNVGDTLPTGQLS	83 / 6 AA	47
Phosphosite 16:	ACTR1A	P61163	T233	INPQKDETLETEKAQ	66 / 9 AA	43
Phosphosite 17:	NES	P48681	T1294	EEDELGETLPDSTPL	85 / 7 AA	177
Phosphosite 18:	KIAA1671	Q9BY89	S1550	EQCQSGESLATESPD	55 / 9 AA	197
Phosphosite 19:	ALS2CR11	Q53TS8	T413	NDSEKGLTIPTLNQS	75 / 8 AA	71
Phosphosite 20:	CAPN12	Q6ZSI9	T303	DSCPRWDTLPTECRD	62 / 8 AA	81