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:	C21orf25
Human P-Site:	S538
P-Site Sequence:	LMQGYTASVDSTHQE
UniProt:	Q9Y426
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	C21orf25	Q9Y426	S538	LMQGYTASVDSTHQE	100 / 9 AA	76
Phosphosite 1:	OFD1	O75665	S531	QILGYKASVKSLTTQ	75 / 8 AA	117
Phosphosite 2:	LPO	P22079	S451	PYQGYSESVDPRISN	62 / 8 AA	80
Phosphosite 3:	TGM2	P21980	S53	EGRNYEASVDSLTFS	75 / 8 AA	77
Phosphosite 4:	LPO	P22079	S449	IPPYQGYSESVDPRI	71 / 7 AA	80
Phosphosite 5:	CHMP7	Q8WUX9	S113	RESDFMASVDSSWIS	55 / 9 AA	51
Phosphosite 6:	IKKa	O15111	T199	LFENKPYTATVDYWS	83 / 6 AA	85
Phosphosite 7:	TAF13	Q15543	T51	GDDQNPYTESVDILE	83 / 6 AA	14
Phosphosite 8:	C21orf25	Q9Y426	S541	GYTASVDSTHQEDAP	100 / 6 AA	76
Phosphosite 9:	USP19	O94966	T615	QNKPYTETVDSDGRP	71 / 7 AA	146
Phosphosite 10:	ABCD2	Q9UBJ2	Y419	EVTELAGYTARVYNM	83 / 6 AA	83
Phosphosite 11:	ANKRD11	Q6UB99	S1228	KDRASVDSTQDKKNK	100 / 6 AA	298
Phosphosite 12:	ANKRD11	Q6UB99	S1225	KDRKDRASVDSTQDK	100 / 6 AA	298
Phosphosite 13:	USP1	O94782	S597	SSGHYTASVKVTDLN	75 / 8 AA	88
Phosphosite 14:	claudin 23	Q96B33	T258	RPRPKAYTNSVDVLD	71 / 7 AA	32
Phosphosite 15:	KIAA1107	Q9UPP5	S1079	VHTPFQASVDSFSPS	71 / 7 AA	156
Phosphosite 16:	PSKH1	P11801	T275	VLVRKPYTNSVDMWA	83 / 6 AA	48
Phosphosite 17:	KIAA1622	Q6NUP7	Y800	SKSSTTGYTTSVSGL	83 / 6 AA	99
Phosphosite 18:	KIAA1622	Q6NUP7	T801	KSSTTGYTTSVSGLG	83 / 6 AA	99
Phosphosite 19:	claudin 23	Q96B33	S260	RPKAYTNSVDVLDGE	71 / 7 AA	32
Phosphosite 20:	KIAA1622	Q6NUP7	S803	STTGYTTSVSGLGKT	83 / 6 AA	99