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:	TTC21B
Human P-Site:	S302
P-Site Sequence:	FSRTCGRSQLILQKI
UniProt:	Q7Z4L5
Intern. Prot. ID:	IPI00178386

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	TTC21B	Q7Z4L5	S302	FSRTCGRSQLILQKI	100 / 9 AA	151
Phosphosite 1:	ZNF26	P17031	S439	ERAFCGKSQLIIHQR	75 / 8 AA	61
Phosphosite 2:	NFKBIB	Q15653	S243	PEPTCGRSPLHLAVE	77 / 9 AA	38
Phosphosite 3:	ZNF630	Q2M218	S584	GKAFCGKSPLIIHQK	62 / 8 AA	76
Phosphosite 4:	TRPA1	O75762	S344	KIDSEGRSPLILATA	85 / 7 AA	127
Phosphosite 5:	C3orf55	A1A4F0	S28	EHLTCLRSQLFVAYR	66 / 9 AA	16
Phosphosite 6:	EYS	Q5T1H1	S2219	VKYGCGNSQNILTVS	75 / 8 AA	351
Phosphosite 7:	GTF2H3	Q13889	S239	LPDQDQRSQLILPPP	100 / 6 AA	34
Phosphosite 8:	RPP21	Q9H633	S98	TCLTCQRSQRFLNDP	66 / 9 AA	18
Phosphosite 9:	AKAP8	O43823	S278	MPYGCGRSQPRMRDR	62 / 8 AA	76
Phosphosite 10:	RIPK2	O43353	S349	QEESCGSSQLHENSG	71 / 7 AA	61
Phosphosite 11:	RIPK2	O43353	S348	PQEESCGSSQLHENS	71 / 7 AA	61
Phosphosite 12:	ZNF224	Q9NZL3	S301	GKSFCGRSRLNRHSM	83 / 6 AA	82
Phosphosite 13:	ZNF428	Q96B54	S99	PCQLCGRSPLGEAPP	83 / 6 AA	20
Phosphosite 14:	C9orf130	Q8WZB0	S128	NLPFCGRSNLPDVSS	83 / 6 AA	15
Phosphosite 15:	NFKBIB	Q15653	T239	DLDKPEPTCGRSPLH	100 / 5 AA	38
Phosphosite 16:	PKD1L1	Q8TDX9	S1512	TQSPCYISQLILFKK	75 / 8 AA	315
Phosphosite 17:	C20orf177	Q9NTX9	S224	ALKSPGRSKLIASAL	62 / 8 AA	42
Phosphosite 18:	MXRA5	Q9NR99	S304	EQEEDGGSQLILEKF	85 / 7 AA	312
Phosphosite 19:	ZMYND17	Q4VC12	S58	DDNVPGLSQLILQKL	66 / 9 AA	51
Phosphosite 20:	PARP9	Q8IXQ6	S375	KAKQFQRSQLVLVTK	83 / 6 AA	96