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:	C4orf21
Human P-Site:	T146
P-Site Sequence:	ASHEAKKTGPTIFSP
UniProt:	Q86YA3
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	C4orf21	Q86YA3	T146	ASHEAKKTGPTIFSP	100 / 9 AA	119
Phosphosite 1:	DIAPH2	O60879	T696	EALEEKKTGPTKKKV	87 / 8 AA	126
Phosphosite 2:	PROM1	O43490	Y742	IIEETKKYGRTIIGY	66 / 9 AA	97
Phosphosite 3:	RNF17	Q9BXT8	T8	MAAEASKTGPSRSSY	75 / 8 AA	185
Phosphosite 4:	PSMB10	P40306	T38	KVPHARKTGTTIAGL	66 / 9 AA	29
Phosphosite 5:	Ig mu heavy chain disease protein	P04220	S109	VEAEAKESGPTTYKV	66 / 9 AA	43
Phosphosite 6:	IGHM	P01871	S171	VQAEAKESGPTTYKV	66 / 9 AA	49
Phosphosite 7:	DDX46	Q7L014	S257	GGGNEKKSGPTVTKV	71 / 7 AA	117
Phosphosite 8:	SYNPO2	Q9UMS6	S1079	PKFSAKKSGVTIQVW	75 / 8 AA	118
Phosphosite 9:	RNF17	Q9BXT8	S6	__MAAEASKTGPSRS	85 / 7 AA	185
Phosphosite 10:	ZNF828	Q96JM3	T400	GPPELRKTAPTLSPE	55 / 9 AA	89
Phosphosite 11:	ZNF638	Q14966	T847	KSLEAKKTGNVKNKD	100 / 6 AA	221
Phosphosite 12:	C3orf72	Q6ZUU3	T73	RHSKAQKTGPGILQQ	75 / 8 AA	19
Phosphosite 13:	SLC43A3	Q8NBI5	T353	YQKEARKTGSSTLAV	55 / 9 AA	55
Phosphosite 14:	MUC19	Q7Z5P9	T2530	STEGLEKTGPSITGS	83 / 6 AA	598
Phosphosite 15:	PPFIBP2	Q8ND30	S441	PNGEAAKSPPTICQP	66 / 9 AA	98
Phosphosite 16:	MAP7D1	Q3KQU3	S93	SPSSEAKSRGPTPPA	75 / 8 AA	93
Phosphosite 17:	MUC19	Q7Z5P9	S2533	GLEKTGPSITGSGTT	83 / 6 AA	598
Phosphosite 18:	ZFR2	Q9UPR6	T377	PGAEAKPTSPTGPSV	75 / 8 AA	101
Phosphosite 19:	Putative UPF0607 protein ENSP00000332738	A6NL46	T100	QGQEDNKTGPCSNGK	71 / 7 AA	38
Phosphosite 20:	WWP2	O00308	T56	LPSETKKTGKRIGSS	66 / 9 AA	99