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:	PARP4
Human P-Site:	T521
P-Site Sequence:	HEKDFSLTEAPPGYD
UniProt:	Q9UKK3
Intern. Prot. ID:	IPI00296909

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	PARP4	Q9UKK3	T521	HEKDFSLTEAPPGYD	100 / 9 AA	193
Phosphosite 1:	PARP4	Q9UKK3	S519	DLHEKDFSLTEAPPG	100 / 7 AA	193
Phosphosite 2:	RUSC2	Q8N2Y8	T968	FQDPFSLTEKPPAEF	87 / 8 AA	161
Phosphosite 3:	THNSL2	Q86YJ6	S301	TVQQGDFSLSEAVKS	85 / 7 AA	54
Phosphosite 4:	THNSL2	Q86YJ6	S303	QQGDFSLSEAVKSTL	85 / 7 AA	54
Phosphosite 5:	STAG3	Q9UJ98	S992	EGIQFSLSELPPAGS	66 / 9 AA	139
Phosphosite 6:	ZNRF3	Q9ULT6	T811	VSVQYTLTEEPPPGC	55 / 9 AA	101
Phosphosite 7:	GATSL3	Q8WTX7	T45	RCKFFSLTETPEDYT	85 / 7 AA	36
Phosphosite 8:	GATS	Q8NAP1	T56	RCKFFSLTETPEDYT	85 / 7 AA	18
Phosphosite 9:	GATSL1	A6NNH0	T45	RCKFFSLTETPEDYT	85 / 7 AA	36
Phosphosite 10:	GATSL2	A6NHX0	T45	RCKFFSLTETPEDYT	85 / 7 AA	36
Phosphosite 11:	ZNF507	Q8TCN5	T429	EGKDLSLTEAQIGRE	75 / 8 AA	106
Phosphosite 12:	AKR1D1	P51857	S290	NFQIFDFSLTEEEMK	100 / 6 AA	37
Phosphosite 13:	ZNF507	Q8TCN5	S427	MEEGKDLSLTEAQIG	85 / 7 AA	106
Phosphosite 14:	Putative IQ motif and ankyrin repeat domain-containing protein LOC642574	A8MXQ7	T305	RSWDLSLTEAMLQNM	85 / 7 AA	68
Phosphosite 15:	CEP78	Q5JTW2	S500	QLRNINFSLSEALHA	71 / 7 AA	76
Phosphosite 16:	CEP78	Q5JTW2	S502	RNINFSLSEALHAQS	71 / 7 AA	76
Phosphosite 17:	GLP1R	P43220	T51	RQCQRSLTEDPPPAT	85 / 7 AA	53
Phosphosite 18:	VIM	P08670	S87	LQDSVDFSLADAINT	71 / 7 AA	54
Phosphosite 19:	CCDC88C	Q9P219	T1758	VKPNFRLTEAEAPPS	71 / 7 AA	228
Phosphosite 20:	CASKIN2	Q8WXE0	T985	PGLDFNLTESDTVKR	71 / 7 AA	127