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:	MMP21
Human P-Site:	S142
P-Site Sequence:	GPPPRARSRRSPRAP
UniProt:	Q8N119
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	MMP21	Q8N119	S142	GPPPRARSRRSPRAP	100 / 9 AA	65
Phosphosite 1:	HRK	O00198	S56	MWRRRARSRRAPAPG	87 / 8 AA	10
Phosphosite 2:	C2orf16	Q68DN1	S1932	HCSPSERSRRSPLKE	77 / 9 AA	224
Phosphosite 3:	GRIN2B	Q13224	S28	VSGSRARSQKSPPSI	75 / 8 AA	166
Phosphosite 4:	USP51	Q70EK9	S114	RPQPRARSRSQPGLS	77 / 9 AA	80
Phosphosite 5:	Nkx2-3	Q8TAU0	S147	SERPKPRSRRKPRVL	66 / 9 AA	38
Phosphosite 6:	PRPF4B	Q13523	S363	SPKPRDKSRRSRSPL	75 / 8 AA	117
Phosphosite 7:	ANKRD50	Q9ULJ7	S1228	HSLPRSRSRQSIVSP	75 / 8 AA	150
Phosphosite 8:	KIF20A	O95235	S878	RILRSRRSPLLKSGP	100 / 6 AA	100
Phosphosite 9:	PDE4D	Q08499	S252	NLQDRAPSKRSPMCN	75 / 8 AA	91
Phosphosite 10:	C2orf16	Q68DN1	S1935	PSERSRRSPLKEGLK	100 / 6 AA	224
Phosphosite 11:	KIF20A	O95235	S875	PYARILRSRRSPLLK	100 / 6 AA	100
Phosphosite 12:	KIAA1853	A7MD48	S454	RSSRSRRSPSYSRYS	100 / 6 AA	69
Phosphosite 13:	HIF3A	Q9Y2N7	S25	KSRDAARSRRSQETE	85 / 7 AA	72
Phosphosite 14:	KIAA1853	A7MD48	S451	PPSRSSRSRRSPSYS	85 / 7 AA	69
Phosphosite 15:	MMP21	Q8N119	S145	PRARSRRSPRAPLSL	100 / 6 AA	65
Phosphosite 16:	CGNL1	Q0VF96	S293	PVLDGARSRRSSSSS	85 / 7 AA	149
Phosphosite 17:	SFRS6	Q13247	S208	RRRSRSRSRRSSRSR	66 / 9 AA	40
Phosphosite 18:	TRA2B	P62995	S60	RSESRSRSRRSSRRH	66 / 9 AA	34
Phosphosite 19:	PALLD	Q8WX93	S1101	AVNQRGRSPRSPSGH	75 / 8 AA	151
Phosphosite 20:	BCLAF1	Q9NYF8	S129	SQRSRSRSRRSYRSS	75 / 8 AA	106