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:	Y821
P-Site Sequence:	FIGAKLQYGDPYYSY
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	Y821	FIGAKLQYGDPYYSY	100 / 9 AA	128
Phosphosite 1:	TAX1BP1	Q86VP1	Y635	NAQPVLQYGNPYASQ	85 / 7 AA	91
Phosphosite 2:	PTBP2	Q9UKA9	Y225	QFQALLQYGDPVNAQ	87 / 8 AA	58
Phosphosite 3:	SIL1	Q9H173	Y106	EREAKLQYEDKFRNN	66 / 9 AA	52
Phosphosite 4:	AHNAK2	Q8IVF2	Y180	DALKILQYSEPYKVQ	71 / 7 AA	617
Phosphosite 5:	A2ML1	A8K2U0	Y1449	DEQATIQYSDPCE__	55 / 9 AA	161
Phosphosite 6:	KIAA0774	Q5JR59	T1335	ELLWKLQTGDPTSPI	85 / 7 AA	150
Phosphosite 7:	C17orf27	Q63HN8	Y2792	NPVAKIIYGDPVTFL	75 / 8 AA	374
Phosphosite 8:	Abi-1	Q8IZP0	Y431	EEAAVVQYNDPYADG	66 / 9 AA	55
Phosphosite 9:	TM2D2	Q9BX73	Y63	GGAASWEYGDPHSPV	55 / 9 AA	23
Phosphosite 10:	SCYL3	Q8IZE3	T491	YYNTLLQTGDPFSQP	71 / 7 AA	83
Phosphosite 11:	PTBP1	P26599	Y228	QFQALLQYADPVSAQ	75 / 8 AA	57
Phosphosite 12:	ROD1	O95758	Y226	QFQALLQYADPVNAH	75 / 8 AA	60
Phosphosite 13:	Uncharacterized protein FLJ39582	Q8N8F4	Y122	PRPANLQYGNFNSLS	71 / 7 AA	19
Phosphosite 14:	IRX1	P78414	Y125	YPYGQFQYGDPGRPK	62 / 8 AA	50
Phosphosite 15:	GMD	O60547	Y84	EGNMKLHYGDLTDST	83 / 6 AA	42
Phosphosite 16:	CALCOCO2	Q13137	Y376	RQNPGLAYGNPYSGI	71 / 7 AA	52
Phosphosite 17:	RasGRF1	Q13972	Y724	GQNNKLLYGEPPKSP	71 / 7 AA	145
Phosphosite 18:	INSM2	Q96T92	Y272	CQLCKEQYADPFALA	62 / 8 AA	59
Phosphosite 19:	BSCL2	Q96G97	Y102	GRDRVLMYGQPYRVT	71 / 7 AA	44
Phosphosite 20:	CCDC42	Q96M95	Y19	AEYFRLQYGERLLQM	57 / 7 AA	38