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:	CBS
Human P-Site:	S227
P-Site Sequence:	LDQYRNASNPLAHYD
UniProt:	P35520
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CBS	P35520	S227	LDQYRNASNPLAHYD	100 / 9 AA
Phosphosite 1:	Smad6	O43541	S142	AGAPRDASDPLAGAA	75 / 8 AA	53
Phosphosite 2:	AGPS	O00116	S589	AFNYRGISDPLTVFE	55 / 9 AA	73
Phosphosite 3:	ZNF226	Q9NYT6	S628	GKVFRQASNLLAHQR	66 / 9 AA	92
Phosphosite 4:	SERTAD4	Q9NUC0	S66	GSHYRGISNPITTSK	55 / 9 AA	39
Phosphosite 5:	TMEM131	Q92545	S857	EFQVFRNSAHPLQSS	50 / 8 AA	201
Phosphosite 6:	MLNR	O43193	S199	NGTARIASSPLASSP	75 / 8 AA	45
Phosphosite 7:	MLNR	O43193	S200	GTARIASSPLASSPP	75 / 8 AA	45
Phosphosite 8:	ERGIC1	Q969X5	S179	GGADRLTSNPLASHD	75 / 8 AA	33
Phosphosite 9:	C18orf54	Q8IYD9	S49	DKLYRSASQALQAYI	62 / 8 AA	42
Phosphosite 10:	PLEC1	Q15149	S1352	QLRYYRESADPLGAW	50 / 8 AA	532
Phosphosite 11:	TSPAN9	O75954	T182	QGCGRNATTPLWRTG	71 / 7 AA	27
Phosphosite 12:	ARHGEF11	O15085	S949	ATALERASNPLAAEF	100 / 6 AA	168
Phosphosite 13:	TSPAN9	O75954	T183	GCGRNATTPLWRTGC	71 / 7 AA	27
Phosphosite 14:	IQSEC2	Q5JU85	S138	RDKERDASYPLQDTT	71 / 7 AA	162
Phosphosite 15:	IQSEC2	Q5JU85	Y139	DKERDASYPLQDTTG	71 / 7 AA	162
Phosphosite 16:	PRPF39	Q86UA1	S13	MDEYRNSSNGSTGNS	83 / 6 AA	78
Phosphosite 17:	PRPF39	Q86UA1	S12	HMDEYRNSSNGSTGN	83 / 6 AA	78
Phosphosite 18:	TMEM30A	Q9NV96	S353	INHKYRNSSNTADIT	83 / 6 AA
Phosphosite 19:	4931414P19Rik	Q9H972	S378	KRREYRNSLNPFKGL	62 / 8 AA	59
Phosphosite 20:	TMEM30A	Q9NV96	S354	NHKYRNSSNTADITI	83 / 6 AA