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:	CATSPER4
Human P-Site:	S424
P-Site Sequence:	EVLNRRSSTSGSLET
UniProt:	Q7RTX7
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CATSPER4	Q7RTX7	S424	EVLNRRSSTSGSLET	100 / 9 AA	54
Phosphosite 1:	CATSPER4	Q7RTX7	S423	SEVLNRRSSTSGSLE	100 / 8 AA	54
Phosphosite 2:	CATSPER4	Q7RTX7	T425	VLNRRSSTSGSLETT	100 / 8 AA	54
Phosphosite 3:	PHC2	Q8IXK0	S121	LVSNRQGSTSGSNVS	77 / 9 AA	91
Phosphosite 4:	ATRX	P46100	S784	GKRKRKSSTSGSDFD	77 / 9 AA	283
Phosphosite 5:	ZNF185	O15231	S17	APYNIRRSSTSGDTE	100 / 7 AA	49
Phosphosite 6:	ZNF185	O15231	S18	PYNIRRSSTSGDTEE	100 / 7 AA	49
Phosphosite 7:	ZNF185	O15231	T19	YNIRRSSTSGDTEEE	100 / 7 AA	49
Phosphosite 8:	CACNA1S	Q13698	S1757	MPEDRKSSTPGSLHE	66 / 9 AA	212
Phosphosite 9:	ATRX	P46100	T785	KRKRKSSTSGSDFDT	87 / 8 AA	283
Phosphosite 10:	SPEG	Q15772	S861	PSQNRRSSDTGSKAP	77 / 9 AA	354
Phosphosite 11:	IMMT	Q16891	S34	LRPCRRYSTSGSSGL	87 / 8 AA	84
Phosphosite 12:	IMMT	Q16891	T35	RPCRRYSTSGSSGLT	87 / 8 AA	84
Phosphosite 13:	CATSPER4	Q7RTX7	S426	LNRRSSTSGSLETTS	100 / 7 AA	54
Phosphosite 14:	Fra2	P15408	S307	CSKAHRRSSSSGDQS	75 / 8 AA	35
Phosphosite 15:	NFKBIL2	Q96HA7	T862	DNRRPSSTSGSDSEE	87 / 8 AA	151
Phosphosite 16:	Fra2	P15408	S308	SKAHRRSSSSGDQSS	75 / 8 AA	35
Phosphosite 17:	INO80B	Q9C086	T10	KLWRRGSTSGAMEAP	75 / 8 AA	39
Phosphosite 18:	SSPO	A2VEC9	T4188	QSRFRSSTSGSWAPE	100 / 7 AA	548
Phosphosite 19:	SSPO	A2VEC9	S4189	SRFRSSTSGSWAPEC	100 / 7 AA	548
Phosphosite 20:	MYST3	Q92794	S448	KRGNRKSSTSDWPTD	66 / 9 AA	225