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:	METTL4
Human P-Site:	S302
P-Site Sequence:	VKRSNRYSYLSPLQI
UniProt:	Q8N3J2
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	METTL4	Q8N3J2	S302	VKRSNRYSYLSPLQI	100 / 9 AA	54
Phosphosite 1:	METTL4	Q8N3J2	Y303	KRSNRYSYLSPLQIK	100 / 8 AA	54
Phosphosite 2:	METTL4	Q8N3J2	Y301	SVKRSNRYSYLSPLQ	100 / 8 AA	54
Phosphosite 3:	ACTR3	P61158	Y233	AVKERYSYVCPDLVK	62 / 8 AA	47
Phosphosite 4:	RPS2	P15880	S249	DAISKTYSYLTPDLW	66 / 9 AA	31
Phosphosite 5:	ZNF714	Q96N38	Y299	KAFNRFSYLTKHKII	71 / 7 AA	64
Phosphosite 6:	ZNF431	Q8TF32	Y358	KAFNRFSYLTKHKII	71 / 7 AA	67
Phosphosite 7:	ACTR3	P61158	S232	KAVKERYSYVCPDLV	62 / 8 AA	47
Phosphosite 8:	ZNF714	Q96N38	S298	DKAFNRFSYLTKHKI	71 / 7 AA	64
Phosphosite 9:	ZNF431	Q8TF32	S357	DKAFNRFSYLTKHKI	71 / 7 AA	67
Phosphosite 10:	MMP25	Q9NPA2	Y41	DWLTRYGYLPPPHPA	62 / 8 AA	63
Phosphosite 11:	METTL4	Q8N3J2	S305	SNRYSYLSPLQIKQI	100 / 6 AA	54
Phosphosite 12:	ANK3	Q12955	Y1471	ALRKRYSYLTEPGMI	71 / 7 AA	480
Phosphosite 13:	ATP5I	P56385	Y32	YGATRYNYLKPRAEE	71 / 7 AA	8
Phosphosite 14:	ANK3	Q12955	S1470	LALRKRYSYLTEPGM	71 / 7 AA	480
Phosphosite 15:	ANK3	Q12955	Y1469	SLALRKRYSYLTEPG	71 / 7 AA	480
Phosphosite 16:	CPSF1	Q10570	Y1409	ELLNRYLYLSTMERS	85 / 7 AA	161
Phosphosite 17:	CPSF1	Q10570	Y1407	DGELLNRYLYLSTME	85 / 7 AA	161
Phosphosite 18:	DNAH17	Q9UFH2	Y992	DSFERYSYLWTDNLQ	71 / 7 AA	512
Phosphosite 19:	RPS2	P15880	Y250	AISKTYSYLTPDLWK	83 / 6 AA	31
Phosphosite 20:	JMJD3	O15054	Y1156	KGKFRESYLSPAQSV	85 / 7 AA	180