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:	S515
P-Site Sequence:	MAQVRYYSELENAQS
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	S515	MAQVRYYSELENAQS	100 / 9 AA	151
Phosphosite 1:	TTC21A	Q8NDW8	Y514	LMAQVRYYSELENAQ	100 / 8 AA	151
Phosphosite 2:	GNN	Q6P2S7	Y231	KGLPVRFYSDLHELG	71 / 7 AA	152
Phosphosite 3:	GNN	Q6P2S7	S232	GLPVRFYSDLHELGE	71 / 7 AA	152
Phosphosite 4:	C9orf30	Q96H12	S14	IKPAKYFSELEKSIL	55 / 9 AA	32
Phosphosite 5:	TMEM63C	Q9P1W3	S318	VDAEQYYSELEEQLT	75 / 8 AA	93
Phosphosite 6:	NAT12	Q147X3	S220	IRYVRYESELQMPDI	75 / 8 AA	39
Phosphosite 7:	Kv3.1	P48547	Y236	NGTQVRYYREAETEA	75 / 8 AA	58
Phosphosite 8:	AADACL1	Q6PIU2	Y127	ASAKIRYYDELCTAM	71 / 7 AA	46
Phosphosite 9:	Plk2	Q9NYY3	Y547	DKKTVHYYAELGQCS	71 / 7 AA	78
Phosphosite 10:	FUT9	Q9Y231	Y205	PEHARVKYYNELSKS	71 / 7 AA	42
Phosphosite 11:	Plk2	Q9NYY3	Y546	PDKKTVHYYAELGQC	71 / 7 AA	78
Phosphosite 12:	FUT9	Q9Y231	Y206	EHARVKYYNELSKSI	71 / 7 AA	42
Phosphosite 13:	SYNGAP1	Q96PV0	Y281	LPPKKRYYCELCLDD	83 / 6 AA	148
Phosphosite 14:	DDHD1	Q8NEL9	S104	GSSLRYYSEGESGGG	66 / 9 AA	100
Phosphosite 15:	SYNGAP1	Q96PV0	Y280	ELPPKKRYYCELCLD	83 / 6 AA	148
Phosphosite 16:	KIAA0423	Q9Y4F4	Y322	FGSQVPYYLELEASG	75 / 8 AA	189
Phosphosite 17:	PDE6C	P51160	T588	GRLKKYYTDLEAFAM	57 / 7 AA	99
Phosphosite 18:	MICAL3	Q7RTP6	Y1050	EKNAMVRYESELMIF	85 / 7 AA	110
Phosphosite 19:	PDE6C	P51160	Y587	TGRLKKYYTDLEAFA	57 / 7 AA	99
Phosphosite 20:	DDHD1	Q8NEL9	Y103	SGSSLRYYSEGESGG	75 / 8 AA	100