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:	USP4
Human P-Site:	S233
P-Site Sequence:	RQTLQSKSSTAPSRN
UniProt:	Q13107
Intern. Prot. ID:	IPI00011836

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	USP4	Q13107	S233	RQTLQSKSSTAPSRN	100 / 9 AA	109
Phosphosite 1:	USP4	Q13107	S234	QTLQSKSSTAPSRNF	100 / 8 AA	109
Phosphosite 2:	INPPL1	O15357	S290	LKALQDMSSTAPPAP	77 / 9 AA	139
Phosphosite 3:	TNRC6B	Q9UPQ9	S148	GALLQSESGTAPDST	77 / 9 AA	194
Phosphosite 4:	RREB1	Q92766	S567	AHLLQSKSGTQPHAA	77 / 9 AA	181
Phosphosite 5:	SRRM2	Q9UQ35	S1090	SPSLQSKSQTSPKGG	77 / 9 AA	300
Phosphosite 6:	USP4	Q13107	S231	WPRQTLQSKSSTAPS	100 / 7 AA	109
Phosphosite 7:	CSDE1	O75534	S116	PHNLESKSPAAPGQS	66 / 9 AA	89
Phosphosite 8:	USP4	Q13107	T235	TLQSKSSTAPSRNFT	100 / 7 AA	109
Phosphosite 9:	PHF20L1	A8MW92	S545	KVKLEDKSSTAFGMN	75 / 8 AA	62
Phosphosite 10:	BMPR2	Q13873	S1013	NRAVHSKSSTAVYLA	75 / 8 AA	115
Phosphosite 11:	RREB1	Q92766	S565	SNAHLLQSKSGTQPH	85 / 7 AA	181
Phosphosite 12:	UBAP2L	Q14157	S460	SSPLPSKSTSAPQMS	66 / 9 AA	115
Phosphosite 13:	ACBD5	Q5T8D3	S480	LTALQAKSSTSTLQT	85 / 7 AA	60
Phosphosite 14:	DNAH1	Q9P2D7	S4041	IIQLQPKSSSAGSQG	75 / 8 AA	494
Phosphosite 15:	INPPL1	O15357	S291	KALQDMSSTAPPAPQ	75 / 8 AA	139
Phosphosite 16:	DDX43	Q9NXZ2	S483	HMQTFLQSMSSTDKV	85 / 7 AA	73
Phosphosite 17:	SUFU	Q9UMX1	S351	KDSLESDSSTAIIPH	75 / 8 AA	54
Phosphosite 18:	RNF20	Q5VTR2	S524	SALLQSQSSTEDPKD	75 / 8 AA	114
Phosphosite 19:	NPC2	P61916	S69	TSNIQSKSSKAVVHG	75 / 8 AA	17
Phosphosite 20:	SPATA17	Q96L03	S11	LARLQARSSTVGNQY	62 / 8 AA	43