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:	POLR1B
Human P-Site:	T878
P-Site Sequence:	MRVPRNPTIGDKFAS
UniProt:	Q9H9Y6
Intern. Prot. ID:	IPI00418797

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	POLR1B	Q9H9Y6	T878	MRVPRNPTIGDKFAS	100 / 9 AA	128
Phosphosite 1:	TAS2R16	Q9NYV7	T165	EHLPRNSTVTDKLEN	66 / 9 AA	34
Phosphosite 2:	PAX3	P23760	T383	PSNPMNPTIGNGLSP	75 / 8 AA	53
Phosphosite 3:	FRS2	Q8WU20	S155	NGYPRYPSFGDASSH	62 / 8 AA	57
Phosphosite 4:	C3orf1	Q9NPL8	S277	LNLPRNPSVIDKQDK	66 / 9 AA	32
Phosphosite 5:	XIAP	P98170	S261	TNLPRNPSMADYEAR	62 / 8 AA	57
Phosphosite 6:	ZNF609	O15014	T1315	HYKSKSPTISDKTSQ	55 / 9 AA	151
Phosphosite 7:	KIAA1913	Q86VY9	S350	TVLPRNNSIGESLSS	62 / 8 AA	54
Phosphosite 8:	MTAC2D1	Q8N9U0	T320	TQTPRKKTIGECSMS	62 / 8 AA	55
Phosphosite 9:	DHX8	Q14562	T263	RPPPEEPTIGDIYNG	75 / 8 AA	139
Phosphosite 10:	CDCA3	Q99618	S68	AQDSDPRSPTLGIAR	71 / 7 AA	29
Phosphosite 11:	CDCA3	Q99618	T70	DSDPRSPTLGIARTP	71 / 7 AA	29
Phosphosite 12:	SLC9A1	P19634	S56	SEPPRERSIGDVTTA	62 / 8 AA	91
Phosphosite 13:	FAT4	Q6V0I7	S4804	TPRPRNPSICSADHG	83 / 6 AA	351
Phosphosite 14:	SOAT1	P35610	T317	DSYPRNPTVRWGYVA	83 / 6 AA	65
Phosphosite 15:	PML	P29590	S530	DGPPSPRSPVIGSEV	71 / 7 AA	98
Phosphosite 16:	ZNF609	O15014	S1317	KSKSPTISDKTSQER	71 / 7 AA	151
Phosphosite 17:	FcGR2C	P31995	T303	TLNPRAPTDDDKNIY	66 / 9 AA	36
Phosphosite 18:	FCGR2A	P12318	T297	TLNPRAPTDDDKNIY	66 / 9 AA	35
Phosphosite 19:	SKP2	Q13309	T400	FTTIARPTIGNKKNQ	83 / 6 AA	48
Phosphosite 20:	PANK2	Q9BZ23	T110	EEARRNPTLGGLLGR	71 / 7 AA	63