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:	ARHGAP21
Human P-Site:	S919
P-Site Sequence:	KSSEDSGSRKDSSSE
UniProt:	Q5T5U3
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	ARHGAP21	Q5T5U3	S919	KSSEDSGSRKDSSSE	100 / 9 AA	217
Phosphosite 1:	ARHGAP21	Q5T5U3	S917	SQKSSEDSGSRKDSS	100 / 7 AA	217
Phosphosite 2:	SCN3A	Q9NY46	S606	STFEDSESRRDSLFV	77 / 9 AA	226
Phosphosite 3:	ANKRD11	Q6UB99	S1385	EDYKEGGSRKDSGQY	75 / 8 AA	298
Phosphosite 4:	TNS3	Q68CZ2	T978	LSAEFSGTRKDSPVL	77 / 9 AA	155
Phosphosite 5:	E2F8	A0AVK6	S613	RASMLEDSGSKKKFK	85 / 7 AA	94
Phosphosite 6:	FNIP2	Q9P278	S801	GFAEDRGSRNDMAAD	75 / 8 AA	122
Phosphosite 7:	E2F8	A0AVK6	S615	SMLEDSGSKKKFKED	85 / 7 AA	94
Phosphosite 8:	SCN2A	Q99250	S606	STFEDNDSRRDSLFV	66 / 9 AA	228
Phosphosite 9:	TRIO	O75962	S1814	RKSADAGSQKDSDDS	75 / 8 AA	347
Phosphosite 10:	SMC2L1	O95347	Y444	VKKMDSGYRKDQEAL	85 / 7 AA	136
Phosphosite 11:	SCN1A	P35498	S603	STFEDNESRRDSLFV	66 / 9 AA	229
Phosphosite 12:	TTC7A	Q9ULT0	S674	AHDADSGSRRASSIA	66 / 9 AA	96
Phosphosite 13:	NSUN2	Q08J23	S496	EDLENNGSKKDGVCG	55 / 9 AA	86
Phosphosite 14:	CBX4	O00257	S345	PQPQDAGSRKLSPTK	71 / 7 AA	61
Phosphosite 15:	ZNF423	Q2M1K9	S919	RPGEDDGSRKKAEFI	85 / 7 AA	145
Phosphosite 16:	SNTB2	Q13425	S233	SGSEDSGSPKHQNST	85 / 7 AA	58
Phosphosite 17:	PUM1	Q14671	S705	NSNTGSGSRRDSLTG	85 / 7 AA	126
Phosphosite 18:	PPP1R8	Q12972	S251	LGLEESGSRRMQNFA	71 / 7 AA	38
Phosphosite 19:	TANK	Q92844	T84	PLLEDSETRKNNLTL	55 / 9 AA	48
Phosphosite 20:	SNTB2	Q13425	S231	SFSGSEDSGSPKHQN	85 / 7 AA	58