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:	PARP1
Human P-Site:	S257
P-Site Sequence:	DELKKVCSTNDLKEL
UniProt:	P09874
Intern. Prot. ID:	IPI00449049

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	PARP1	P09874	S257	DELKKVCSTNDLKEL	100 / 9 AA	113
Phosphosite 1:	HMGCS2	P54868	S441	PLDKLVSSTSDLPKR	66 / 9 AA	57
Phosphosite 2:	ASH1L	Q9NR48	S960	RPSVCSMSDLEMEPD	71 / 7 AA	333
Phosphosite 3:	CAPN6	Q9Y6Q1	S634	HISFKVISSDDLTEL	62 / 8 AA	75
Phosphosite 4:	ASH1L	Q9NR48	S958	SHRPSVCSMSDLEME	71 / 7 AA	333
Phosphosite 5:	MGAM	O43451	T546	GSVSGCSTNNLNNPP	83 / 6 AA	210
Phosphosite 6:	KIF13A	Q9H1H9	T523	GTLVCSTTQLWHGDR	71 / 7 AA	202
Phosphosite 7:	PSTK	Q8IV42	T270	TDRIICSTNILHKTD	71 / 7 AA	40
Phosphosite 8:	HDAC2	Q92769	Y14	GGKKKVCYYYDGDIG	62 / 8 AA	55
Phosphosite 9:	GLCCI1	Q86VQ1	S382	SQDGSPCSTEDLLYD	83 / 6 AA	58
Phosphosite 10:	Myc	P01106	T173	RGHSVCSTSSLYLQD	71 / 7 AA	49
Phosphosite 11:	GLCCI1	Q86VQ1	T383	QDGSPCSTEDLLYDR	83 / 6 AA	58
Phosphosite 12:	Myc	P01106	S172	ARGHSVCSTSSLYLQ	71 / 7 AA	49
Phosphosite 13:	TRAK2	O60296	S34	ESITDVCSNEDLPEV	71 / 7 AA	101
Phosphosite 14:	HMGCS2	P54868	S443	DKLVSSTSDLPKRLA	71 / 7 AA	57
Phosphosite 15:	PLCL1	Q15111	S107	PSEKKISSANDCISF	62 / 8 AA	123
Phosphosite 16:	CUBN	O60494	S138	VDKKVCSSNPCQNGG	83 / 6 AA	399
Phosphosite 17:	ARHGEF18	Q6ZSZ5	S746	SFKKKVSSTDPRPRD	71 / 7 AA	131
Phosphosite 18:	ERRFI1	Q9UJM3	S390	IENGKKVSSTHYYLL	71 / 7 AA	51
Phosphosite 19:	TNK2	Q07912	S855	VRDGKKVSSTHYYLL	71 / 7 AA	115
Phosphosite 20:	ZZEF1	O43149	S642	VKSRIGCSSDDLGED	44 / 9 AA	331