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:	S899
P-Site Sequence:	KEDEVELSEPLQSVQ
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	S899	KEDEVELSEPLQSVQ	100 / 9 AA	119
Phosphosite 1:	P4HTM	Q9NXG6	S311	SPEIVELSEPLQVVR	100 / 8 AA	57
Phosphosite 2:	SAPLa	Q5H9R7	S678	DKMEVDLSEPPNWSA	85 / 7 AA	98
Phosphosite 3:	CCDC18	Q5T9S5	T937	HSTETELTEALQKRE	66 / 9 AA	169
Phosphosite 4:	TTN	Q8WZ42	S12702	AHFEIELSEPDVHGQ	85 / 7 AA	3816
Phosphosite 5:	TST	Q16762	S241	QTKKVDLSQPLIATC	71 / 7 AA	33
Phosphosite 6:	HCN4	Q9Y3Q4	S574	ESILGELSEPLREEI	85 / 7 AA	129
Phosphosite 7:	HCN3	Q9P1Z3	S407	ESILGELSEPLREEI	85 / 7 AA	86
Phosphosite 8:	KIAA1109	Q2LD37	S3188	GLIELELSNRLQTKA	66 / 9 AA	555
Phosphosite 9:	LVRN	Q6Q4G3	S193	EYMVLELSEPLKPGS	75 / 8 AA	113
Phosphosite 10:	FGD5	Q6ZNL6	S294	GGEQVDLSEPPDHEK	71 / 7 AA	160
Phosphosite 11:	NFkB-p65	Q04206	S281	RPSDRELSEPMEFQY	55 / 9 AA	60
Phosphosite 12:	RBBP5	Q15291	S525	GKVQAELSQPLTAGG	62 / 8 AA	59
Phosphosite 13:	GPR172A	Q9HAB3	S247	AEEEVEESSPLQEPP	77 / 9 AA	46
Phosphosite 14:	NISCH	Q9Y2I1	S1200	DGLRRYFSEPLQDFW	83 / 6 AA	167
Phosphosite 15:	SAMD9	Q5K651	S1324	TGLGSKFSEPLQVER	83 / 6 AA	184
Phosphosite 16:	VPS13B	Q7Z7G8	S2277	GNFEVQVSEPVPQMS	62 / 8 AA	449
Phosphosite 17:	PARP4	Q9UKK3	S1529	DTESDELSEVLQDSC	85 / 7 AA	193
Phosphosite 18:	CMYA5	Q8N3K9	S496	LEPSISLSEPLMLEE	62 / 8 AA	449
Phosphosite 19:	CEP57	Q86XR8	S361	NGINEELSEVLQTLQ	85 / 7 AA	57
Phosphosite 20:	NFKBIL2	Q96HA7	S491	EAGEVELSEGEDDTD	100 / 6 AA	151