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:	S15
P-Site Sequence:	RNLPSGPSLKHLTDP
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	S15	RNLPSGPSLKHLTDP	100 / 9 AA	128
Phosphosite 1:	KIAA0415	O43299	S149	SRQPEGPSLRHLLPV	77 / 9 AA	88
Phosphosite 2:	CDK13	Q14004	S1474	QENPSGPSLMHGQTW	87 / 8 AA	165
Phosphosite 3:	PITPNM2	Q9BZ72	S1305	SAQPSGPSHRHERTQ	75 / 8 AA	149
Phosphosite 4:	SOCS2	O14508	S162	PLYTSAPSLQHLCRL	75 / 8 AA	22
Phosphosite 5:	ZNF703	Q9H7S9	S408	AHDPAGPSLKAGGYP	85 / 7 AA	58
Phosphosite 6:	SEC14L4	Q9UDX3	S159	VFDMEGLSLKHLWKP	85 / 7 AA	47
Phosphosite 7:	KIAA1432	Q4ADV7	S1043	LSMPSGPSGKRWSKD	66 / 9 AA	159
Phosphosite 8:	ZNF553	Q96MX3	S540	RAQPSGPSQPHVCGF	66 / 9 AA	68
Phosphosite 9:	HERC2P3	Q9BVR0	S501	TITNENPSGPSLGTI	100 / 6 AA	129
Phosphosite 10:	HERC2	O95714	S1773	TITNENPSGPSLGTI	100 / 6 AA	527
Phosphosite 11:	TrpC5	Q9UL62	S841	KRSFMGPSLKKLGLL	85 / 7 AA	111
Phosphosite 12:	CDK13	Q14004	S1471	GNLQENPSGPSLMHG	100 / 6 AA	165
Phosphosite 13:	PIAS3	Q9Y6X2	S616	GPLPSGPSLTGCRSD	85 / 7 AA	68
Phosphosite 14:	Sialophorin	P16150	S368	LKSGSGPSLKGEEEP	100 / 6 AA	40
Phosphosite 15:	GGA1	Q9UJY5	S376	PTPPSGPSLDGTGWN	85 / 7 AA	70
Phosphosite 16:	TNS1	Q9HBL0	S1211	MAAPSSPSLSHHQMM	75 / 8 AA	186
Phosphosite 17:	AHNAK	Q09666	S4903	DAKLSGPSLKMPSLE	100 / 6 AA	629
Phosphosite 18:	POLR1B	Q9H9Y6	S12	SRWRNLPSGPSLKHL	100 / 6 AA	128
Phosphosite 19:	KIAA1660	Q9BYA0	S92	LRRVKGPSGPSLLLT	100 / 6 AA	12
Phosphosite 20:	ISYNA1	Q9NPH2	S514	KMERPGPSLKRVGPV	71 / 7 AA	61