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:	HECTD3
Human P-Site:	S821
P-Site Sequence:	TDALPESSTCSSTLF
UniProt:	Q5T447
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	HECTD3	Q5T447	S821	TDALPESSTCSSTLF	100 / 9 AA	97
Phosphosite 1:	HECTD3	Q5T447	S820	TTDALPESSTCSSTL	100 / 8 AA	97
Phosphosite 2:	IGF1R	P08069	S1365	ALPLPQSSTC_____	85 / 7 AA	155
Phosphosite 3:	IGF1R	P08069	S1364	RALPLPQSSTC____	85 / 7 AA	155
Phosphosite 4:	DENND4C	Q5VZ89	S874	VSCHLPDSRTCMSES	71 / 7 AA	187
Phosphosite 5:	DTNBP1	Q96EV8	S275	PALGPESSTCQNEIT	100 / 6 AA	39
Phosphosite 6:	DTNBP1	Q96EV8	S274	SPALGPESSTCQNEI	100 / 6 AA	39
Phosphosite 7:	TULP4	Q9NRJ4	S1248	PPMYPGSSTCSSLQL	77 / 9 AA	169
Phosphosite 8:	TULP4	Q9NRJ4	T1249	PMYPGSSTCSSLQLP	87 / 8 AA	169
Phosphosite 9:	DUSP27	Q5VZP5	T911	SQKPETDTCSSLAVC	75 / 8 AA	130
Phosphosite 10:	AATK	Q6ZMQ8	T1071	GSSPEPSTCPSGLVP	75 / 8 AA	145
Phosphosite 11:	Shc4	Q6S5L8	S418	LCYLPGNSKCSSVYE	66 / 9 AA	69
Phosphosite 12:	PROP1	O75360	T151	SSFLPESTACPYSYA	62 / 8 AA	25
Phosphosite 13:	PROP1	O75360	S150	FSSFLPESTACPYSY	62 / 8 AA	25
Phosphosite 14:	STARD9	Q9P2P6	S2953	REFRLTESSTCEPST	85 / 7 AA	507
Phosphosite 15:	AATK	Q6ZMQ8	S1070	EGSSPEPSTCPSGLV	75 / 8 AA	145
Phosphosite 16:	CCDC52	Q8N0Z3	S794	GAEAPESSKCSTVSP	75 / 8 AA	96
Phosphosite 17:	UBE3B	Q7Z3V4	T1032	EPGGRLPTSSTCFNL	85 / 7 AA	123
Phosphosite 18:	UBE3B	Q7Z3V4	S1034	GGRLPTSSTCFNLLK	85 / 7 AA	123
Phosphosite 19:	UBE3B	Q7Z3V4	S1033	PGGRLPTSSTCFNLL	85 / 7 AA	123
Phosphosite 20:	CCDC52	Q8N0Z3	S793	PGAEAPESSKCSTVS	85 / 7 AA	96