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:	S1649
P-Site Sequence:	VFPTALTSERLFRGK
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	S1649	VFPTALTSERLFRGK	100 / 9 AA	217
Phosphosite 1:	5-HT(2A)	P28223	S291	LPQSSLSSEKLFQRS	55 / 9 AA	53
Phosphosite 2:	NEB	P20929	S5017	RRVNNVTSERLYREL	71 / 7 AA	773
Phosphosite 3:	OSBPL5	Q9H0X9	S647	EEQTELESERLWQHV	66 / 9 AA	99
Phosphosite 4:	NPAS4	Q8IUM7	T143	TLPSALDTDRLFRCR	55 / 9 AA	87
Phosphosite 5:	TTN	Q8WZ42	T799	KKTTDLTTERLVHVD	75 / 8 AA	3816
Phosphosite 6:	TTN	Q8WZ42	T798	IKKTTDLTTERLVHV	75 / 8 AA	3816
Phosphosite 7:	TBC1D12	O60347	S732	KLPEDITSEKLFSCI	62 / 8 AA	86
Phosphosite 8:	MPPE1	Q53F39	S180	RFEKVFSSERLFSWK	55 / 9 AA	45
Phosphosite 9:	SLC27A1	Q6PCB7	S615	GFDPRQTSDRLFFLD	83 / 6 AA	71
Phosphosite 10:	GPX3	P22352	S166	TSELLGTSDRLFWEP	83 / 6 AA	26
Phosphosite 11:	EPB42	P16452	S28	HHTKALSSRRLFVRR	66 / 9 AA	77
Phosphosite 12:	C10orf137	Q3B7T1	S860	NQAAALQSERLVSKS	75 / 8 AA	139
Phosphosite 13:	GBX1	Q14549	S270	RRRTAFTSEQLLELE	66 / 9 AA	38
Phosphosite 14:	GBX2	P52951	S256	RRRTAFTSEQLLELE	66 / 9 AA	37
Phosphosite 15:	GBX1	Q14549	T269	RRRRTAFTSEQLLEL	75 / 8 AA	38
Phosphosite 16:	GBX2	P52951	T255	RRRRTAFTSEQLLEL	75 / 8 AA	37
Phosphosite 17:	C17orf48	Q3LIE5	S14	PEALSDSSERLFSFG	83 / 6 AA	40
Phosphosite 18:	FAM135A	Q9P2D6	S800	QGQGPCNSERLFPQL	83 / 6 AA	170
Phosphosite 19:	PHLDA2	Q53GA4	S33	KKRGVLTSDRLSLFP	71 / 7 AA	17
Phosphosite 20:	SPOCD1	Q6ZMY3	T115	PTQGRALTSKRLQVS	85 / 7 AA	130