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:	USP21
Human P-Site:	T174
P-Site Sequence:	PTLFSIRTEPPASHG
UniProt:	Q9UK80
Intern. Prot. ID:	IPI00007262

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	USP21	Q9UK80	T174	PTLFSIRTEPPASHG	100 / 9 AA	63
Phosphosite 1:	USP21	Q9UK80	S171	PGPPTLFSIRTEPPA	100 / 6 AA	63
Phosphosite 2:	IGSF1	Q8N6C5	S858	YYDFSIWSEPSDPVE	62 / 8 AA	149
Phosphosite 3:	RICS	A7KAX9	S1524	HQVYGARSEPPASMG	55 / 9 AA	231
Phosphosite 4:	SMARCB1	Q12824	S113	KYKAVSISTEPPTYL	85 / 7 AA	44
Phosphosite 5:	DNAH1	Q9P2D7	T3623	GGSISIMTENPAPDW	66 / 9 AA	494
Phosphosite 6:	MGAT5B	Q3V5L5	T56	RLGDSPFTIRTEVMG	83 / 6 AA	90
Phosphosite 7:	WDR59	Q6PJI9	T591	IAPMKIRTEAPGNLR	55 / 9 AA	110
Phosphosite 8:	ZNF217	O75362	T115	LDKSQVRTEPPKEKN	83 / 6 AA	115
Phosphosite 9:	OSGIN1	Q9UJX0	T32	TSSELFSTRTQPQPQ	71 / 7 AA	61
Phosphosite 10:	RASGEF1C	Q8N431	T184	DKPISYRTKPPASIH	66 / 9 AA	53
Phosphosite 11:	IKBKAP	O95163	S25	PGNPQCFSLRTEQGT	83 / 6 AA	150
Phosphosite 12:	EIF3B	P55884	T68	GPESEVRTEPAAEAE	71 / 7 AA	92
Phosphosite 13:	PTPN14	Q15678	T794	KAISMSRTDPPAVNG	83 / 6 AA	135
Phosphosite 14:	GPRIN1	Q7Z2K8	T973	GRSGSVRTAPPDGAA	71 / 7 AA	102
Phosphosite 15:	SMF	Q12766	T1379	QGCFSSPTEPPVSVS	66 / 9 AA	168
Phosphosite 16:	OR51Q1	Q8NH59	T53	TILTVIRTEPSVHQR	71 / 7 AA	36
Phosphosite 17:	MYH6	P13533	T35	TRPFDIRTECFVPDD	83 / 6 AA	224
Phosphosite 18:	KIAA0494	O75071	T34	SSHRLLRTEPPDSDS	83 / 6 AA	55
Phosphosite 19:	EIF2AK4	Q9P2K8	S1057	DILKGNFSIRTAKMQ	100 / 5 AA	187
Phosphosite 20:	FAM154A	Q8IYX7	T352	KQWSSMRTEPVKPVP	83 / 6 AA	55