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:	XRCC4
Human P-Site:	S315
P-Site Sequence:	TSKKEHISAENMSLE
UniProt:	Q13426
Intern. Prot. ID:	IPI00007672

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	XRCC4	Q13426	S315	TSKKEHISAENMSLE	100 / 9 AA	38
Phosphosite 1:	CCDC66	A2RUB6	T141	KPHKKHITAENMKSS	77 / 9 AA	109
Phosphosite 2:	HDAC2	Q92769	S347	PDFKLHISPSNMTNQ	66 / 9 AA	55
Phosphosite 3:	HDAC1	Q13547	S346	PDFKLHISPSNMTNQ	66 / 9 AA	55
Phosphosite 4:	SYCE1	Q8N0S2	S138	QECKERISALNLQIE	66 / 9 AA	40
Phosphosite 5:	EPCR	Q9UNN8	S195	QYVQKHISAENTKGS	100 / 6 AA	27
Phosphosite 6:	C20orf175	Q96MK2	S559	RARQEHTSAESLMEC	55 / 9 AA	105
Phosphosite 7:	PNN	Q9H307	S450	SPGKENVSALDMEKE	55 / 9 AA	82
Phosphosite 8:	NAGA	P17050	S290	STDLRTISAQNMDIL	83 / 6 AA	46
Phosphosite 9:	RELN	P78509	T508	EGRKEHITLDTLSYS	44 / 9 AA	388
Phosphosite 10:	HDAC2	Q92769	S349	FKLHISPSNMTNQNT	71 / 7 AA	55
Phosphosite 11:	TTN	Q8WZ42	S742	YGYKERISAAKVAEP	55 / 9 AA	3816
Phosphosite 12:	MYSM1	Q5VVJ2	S527	GQTFEHLSAEELAKR	62 / 8 AA	95
Phosphosite 13:	EIF2C2	Q9UKV8	S824	LVDKEHDSAEGSHTS	85 / 7 AA	97
Phosphosite 14:	EIF2C3	Q9H9G7	S825	LVDKEHDSAEGSHVS	85 / 7 AA	97
Phosphosite 15:	ZNF407	Q9C0G0	S993	LDKKEQISSEPEDFA	71 / 7 AA	247
Phosphosite 16:	SMC3	Q9UQE7	S292	KEEKEQLSAERQEQI	71 / 7 AA	142
Phosphosite 17:	TRAF5	O00463	S158	KDLKEHLSASCQFRK	83 / 6 AA	64
Phosphosite 18:	CEP152	O94986	S1063	DTQKEHISDSEDKQL	100 / 5 AA	189
Phosphosite 19:	ZKSCAN2	Q63HK3	S459	ISAKEHISLVEEEEA	100 / 5 AA	111
Phosphosite 20:	SYNE1	Q8NF91	S4960	TKAKELISADLEHSL	71 / 7 AA	1011