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:	TTC21A
Human P-Site:	S763
P-Site Sequence:	RQNPHDASLASRIGH
UniProt:	Q8NDW8
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	TTC21A	Q8NDW8	S763	RQNPHDASLASRIGH	100 / 9 AA	151
Phosphosite 1:	ABP1	P19801	S707	NFFPEDPSLASRDTV	77 / 9 AA	85
Phosphosite 2:	ADCY7	P51828	S400	DVWSHDVSLANRMEA	66 / 9 AA	120
Phosphosite 3:	mahogunin	O60291	S367	KSKPHPASLASKKPK	77 / 9 AA	61
Phosphosite 4:	MN1	Q10571	S662	DCGPHDPSLAPPPPP	66 / 9 AA	136
Phosphosite 5:	C20orf43	Q9BY42	S232	TGKPEEASLDSREKK	66 / 9 AA	34
Phosphosite 6:	TULP2	O00295	S258	DHMRHEASLAIRSPC	66 / 9 AA	59
Phosphosite 7:	SPAG9	O60271	S617	LSEETEASLASRREQ	85 / 7 AA	146
Phosphosite 8:	ZNF761	Q86XN6	S172	VKSIHDASLVSTAQR	85 / 7 AA	88
Phosphosite 9:	ZNF765	Q7L2R6	S172	VKSIHDASLVSTAQR	85 / 7 AA	62
Phosphosite 10:	FAM149A	A5PLN7	S525	HAEAHGISLASRLNP	66 / 9 AA	83
Phosphosite 11:	SH2B1	Q9NRF2	S107	EISPHDLSLESCRVG	75 / 8 AA	79
Phosphosite 12:	DNAH2	Q9P225	S4091	YFIPKDGSLASYKEY	75 / 8 AA	508
Phosphosite 13:	TEP1	Q99973	S1642	SPLCHQASLLSRRWH	75 / 8 AA	290
Phosphosite 14:	NCOA1	Q15788	S1197	LAANPEASLANRNSM	71 / 7 AA	157
Phosphosite 15:	RTTN	Q86VV8	S1597	PRPPHDSSLSAPLPK	71 / 7 AA	249
Phosphosite 16:	RTTN	Q86VV8	S1596	SPRPPHDSSLSAPLP	71 / 7 AA	249
Phosphosite 17:	ARHGAP28	Q9P2N2	S217	GSMPDDASLNSTTLS	75 / 8 AA	82
Phosphosite 18:	C2orf65	Q8TC57	S422	PEDPHDDSLKNVESM	83 / 6 AA	59
Phosphosite 19:	ZNF512	Q96ME7	S51	YTIPHDDSLSGSSSA	62 / 8 AA	65
Phosphosite 20:	PNPLA7	Q6ZV29	T442	SESHTDETLASRKSD	71 / 7 AA	146