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:	XRCC3
Human P-Site:	S54
P-Site Sequence:	WHLLRTASLHLRGSS
UniProt:	O43542
Intern. Prot. ID:	IPI00023073

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	XRCC3	O43542	S54	WHLLRTASLHLRGSS	100 / 9 AA	38
Phosphosite 1:	SHC3	Q92529	S233	SLTISTASLNLRTPD	66 / 9 AA	64
Phosphosite 2:	Abi-1	Q8IZP0	S231	HSPGRTASLNQRPRT	75 / 8 AA	55
Phosphosite 3:	APBB2	Q92870	S393	GATLRYASLKLRNAP	77 / 9 AA	83
Phosphosite 4:	ZBTB38	Q8NAP3	S200	SDSMRTASLCLERTD	75 / 8 AA	134
Phosphosite 5:	SERPINA1	P01009	S309	NEDRRSASLHLPKLS	85 / 7 AA	47
Phosphosite 6:	FAM83H	Q6ZRV2	S966	MEVLRKGSLRLRQLL	66 / 9 AA	127
Phosphosite 7:	SSFA2	P28290	S503	DHLLRTASQHSDSSG	85 / 7 AA	138
Phosphosite 8:	ADCY1	Q08828	S543	RRALRTASEKLRNRS	77 / 9 AA	123
Phosphosite 9:	MS4A7	Q9GZW8	S146	MVALRTASQHCGSEM	85 / 7 AA	26
Phosphosite 10:	ZFYVE20	Q9H1K0	S541	REQFRVASLHTRTRS	66 / 9 AA	89
Phosphosite 11:	SSFA2	P28290	T501	KRDHLLRTASQHSDS	85 / 7 AA	138
Phosphosite 12:	PPFIA1	Q13136	S520	HMRLRGASLHHGRPH	85 / 7 AA	136
Phosphosite 13:	PPAN	Q9NQ55	S372	GIPSRTASLELGEDD	85 / 7 AA	53
Phosphosite 14:	DAB2IP	Q5VWQ8	T272	LPPLRTVTVHLYRET	62 / 8 AA	132
Phosphosite 15:	Smad8	O15198	S164	LAKFRSASLHSEPLM	71 / 7 AA	52
Phosphosite 16:	Smad8	O15198	S162	SLLAKFRSASLHSEP	71 / 7 AA	52
Phosphosite 17:	HOOK2	Q96ED9	S710	GPLGRLASLNLRPTD	75 / 8 AA	83
Phosphosite 18:	PLEKHN1	Q494U1	S266	LTRLRTASGHEPGGS	85 / 7 AA	72
Phosphosite 19:	TAO1	Q7L7X3	S445	FATIRTASLVTRQMQ	66 / 9 AA	116
Phosphosite 20:	KIAA0678	O75165	S356	PVDEEVESLHLRFLA	71 / 7 AA	115