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:	POLR1A
Human P-Site:	S260
P-Site Sequence:	RGYLTPTSAREHLSA
UniProt:	O95602
Intern. Prot. ID:	IPI00031960

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	POLR1A	O95602	S260	RGYLTPTSAREHLSA	100 / 9 AA	195
Phosphosite 1:	POLR1A	O95602	T259	KRGYLTPTSAREHLS	100 / 8 AA	195
Phosphosite 2:	C20orf62	Q4KN68	S146	DLGLNPTSAIEHQLS	77 / 9 AA	20
Phosphosite 3:	DOCK7	Q96N67	S1313	SFLLTSTSGRQHTTF	66 / 9 AA	243
Phosphosite 4:	CLINT1	Q14677	S100	GSERVVTSAREHIYD	100 / 6 AA	68
Phosphosite 5:	C5orf34	Q96MH7	S543	CRRLTQTSPREMPTH	75 / 8 AA	73
Phosphosite 6:	USP34	Q70CQ2	S3384	REVLTPTSTSDNETR	55 / 9 AA	404
Phosphosite 7:	C5orf34	Q96MH7	T542	WCRRLTQTSPREMPT	75 / 8 AA	73
Phosphosite 8:	ZNF638	Q14966	S1444	FGLLKPTSARSGLAE	85 / 7 AA	221
Phosphosite 9:	TTN	Q8WZ42	S3810	QDKLTPESTREFLCI	66 / 9 AA	3816
Phosphosite 10:	ZNF638	Q14966	T1443	EFGLLKPTSARSGLA	85 / 7 AA	221
Phosphosite 11:	QRFP	P83859	S77	IARGLQTSGREHAGC	71 / 7 AA	15
Phosphosite 12:	ECE2	O60344	S412	LLGGRPTSTREQMQQ	71 / 7 AA	100
Phosphosite 13:	SLC4A3	P48751	T101	KLRRLPPTSARHTRR	85 / 7 AA	136
Phosphosite 14:	ONECUT1	Q9UBC0	T235	RHGEQHLTPTSAGMV	100 / 6 AA	51
Phosphosite 15:	ONECUT1	Q9UBC0	S238	EQHLTPTSAGMVPIN	100 / 6 AA	51
Phosphosite 16:	Uncharacterized protein UNQ511/PRO1026	Q6UX82	T205	CANVNSLTPTSAPTT	100 / 6 AA	25
Phosphosite 17:	SLC4A3	P48751	S102	LRRLPPTSARHTRRK	85 / 7 AA	136
Phosphosite 18:	POLR1A	O95602	T257	IGKRGYLTPTSAREH	100 / 6 AA	195
Phosphosite 19:	ILVBL	A1L0T0	S300	QALLTPTSADKLRAA	100 / 6 AA	68
Phosphosite 20:	USE1	Q9NZ43	T98	APGRVPTTARERVPA	71 / 7 AA	29