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:	CATSPER3
Human P-Site:	T21
P-Site Sequence:	SSSPVDTTSVGFCPT
UniProt:	Q86XQ3
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CATSPER3	Q86XQ3	T21	SSSPVDTTSVGFCPT	100 / 9 AA	46
Phosphosite 1:	FAM180B	Q6P0A1	S75	HAGQPMDSTSVGGGL	75 / 8 AA	25
Phosphosite 2:	FAM180B	Q6P0A1	T76	AGQPMDSTSVGGGLQ	75 / 8 AA	25
Phosphosite 3:	ANKRD13B	Q86YJ7	T167	QNLRVDTTLLGFDHM	66 / 9 AA	70
Phosphosite 4:	CTTN	Q14247	S172	QADRVDKSAVGFDYQ	55 / 9 AA	62
Phosphosite 5:	HS1	P14317	S208	QKDRVDKSAVGFNEM	55 / 9 AA	54
Phosphosite 6:	LRRC4	Q9HBW1	T479	KYKPVPTTSTGYQPA	66 / 9 AA	73
Phosphosite 7:	CTTN	Q14247	S209	DKDKVDKSAVGFEYQ	62 / 8 AA	62
Phosphosite 8:	RNF19A	Q9NV58	T491	GTNTAVDTTSVAEAR	75 / 8 AA	91
Phosphosite 9:	PBX4	Q9BYU1	T291	GKTAVDTTEVGVPGN	75 / 8 AA	41
Phosphosite 10:	PBX4	Q9BYU1	T290	TGKTAVDTTEVGVPG	75 / 8 AA	41
Phosphosite 11:	RNF19A	Q9NV58	S493	NTAVDTTSVAEARHN	85 / 7 AA	91
Phosphosite 12:	PEX1	O43933	S239	ESEIPVDSSSVASLW	62 / 8 AA	143
Phosphosite 13:	PEX1	O43933	S240	SEIPVDSSSVASLWT	62 / 8 AA	143
Phosphosite 14:	FRYL	O94915	T2566	SRLPEDTTSVLKEEH	85 / 7 AA	340
Phosphosite 15:	FRYL	O94915	T2565	NSRLPEDTTSVLKEE	85 / 7 AA	340
Phosphosite 16:	Nlp	Q9Y2I6	T22	VYSSCDTTGTGFLDR	55 / 9 AA	160
Phosphosite 17:	CTNND1	O60716	S168	DGLPVDASSVSNNYI	62 / 8 AA	108
Phosphosite 18:	PDGFRB	P09619	T1004	GLRSPLDTSSVLYTA	71 / 7 AA	124
Phosphosite 19:	HNRNPR	O43390	T21	EEEEPMDTSSVTHTE	71 / 7 AA	71
Phosphosite 20:	SREBF1	P36956	T518	GLPSPSDTTSVYHSP	85 / 7 AA	122