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:	Y703
P-Site Sequence:	MGFPLLTYQDRSDNK
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	Y703	MGFPLLTYQDRSDNK	100 / 9 AA	128
Phosphosite 1:	POLR1B	Q9H9Y6	T702	TMGFPLLTYQDRSDN	100 / 8 AA	128
Phosphosite 2:	KIAA1751	Q9C0B2	Y678	KLSSLLTYEDKSLYD	66 / 9 AA	87
Phosphosite 3:	TUBGCP3	Q96CW5	Y143	PQTLPLSYQDRSAQS	85 / 7 AA	104
Phosphosite 4:	KIAA1751	Q9C0B2	T677	LKLSSLLTYEDKSLY	62 / 8 AA	87
Phosphosite 5:	VCAN	P13611	Y2657	THDESMTYEDRSQLD	71 / 7 AA	373
Phosphosite 6:	NAG	A2RRP1	Y691	CRRKLLTYLDRLATY	85 / 7 AA	269
Phosphosite 7:	SNX26	O14559	Y403	LPNPLLTYQLYGKFS	100 / 6 AA	137
Phosphosite 8:	RICS	A7KAX9	Y460	LPNPLLTYQLYEKFS	100 / 6 AA	231
Phosphosite 9:	B3GNT7	Q8NFL0	Y195	HYQQLLAYEDRLYGD	62 / 8 AA	46
Phosphosite 10:	NAG	A2RRP1	T690	RCRRKLLTYLDRLAT	85 / 7 AA	269
Phosphosite 11:	FANCA	O15360	Y929	EEDVHLTYQDWLHLE	83 / 6 AA	163
Phosphosite 12:	C14orf159	Q7Z3D6	T404	KTQIPILTYQGGSVE	71 / 7 AA	66
Phosphosite 13:	TDRD6	O60522	Y1161	KKLGLLSYKDRIRKK	71 / 7 AA	237
Phosphosite 14:	DDX6	P26196	Y440	LAINLITYDDRFNLK	71 / 7 AA	54
Phosphosite 15:	TUBGCP3	Q96CW5	S142	RPQTLPLSYQDRSAQ	83 / 6 AA	104
Phosphosite 16:	TTC28	Q96AY4	Y2070	SNEPLATYQENRNTC	71 / 7 AA	271
Phosphosite 17:	TDRD6	O60522	S1160	NKKLGLLSYKDRIRK	71 / 7 AA	237
Phosphosite 18:	TTC28	Q96AY4	T2069	ISNEPLATYQENRNT	71 / 7 AA	271
Phosphosite 19:	EPB41L3	Q9Y2J2	Y323	CASGLLIYRDRLRIN	71 / 7 AA	121
Phosphosite 20:	LRRC1	Q9BTT6	T397	NQSQPLLTFQTDTDY	83 / 6 AA	59