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:	S27
P-Site Sequence:	GPHSAKGSLEKGSPE
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	S27	GPHSAKGSLEKGSPE	100 / 9 AA
Phosphosite 1:	POLG	P54098	S1230	IIELTKGSLEKRSQP	85 / 7 AA	140
Phosphosite 2:	USP8	P40818	S153	GGTLAKGSLENVLDS	85 / 7 AA	128
Phosphosite 3:	MAP3K15	Q6ZN16	S439	SLLGRKGSLEKMNNY	100 / 6 AA	147
Phosphosite 4:	DCUN1D1	Q96GG9	S59	IRESVKGSLDRKKLE	62 / 8 AA	30
Phosphosite 5:	TTC25	Q96NG3	S293	TSGSAEGSLQKAEKV	66 / 9 AA	77
Phosphosite 6:	C10orf92	Q8IYW2	S62	GQQSEQGSLEKLLAD	75 / 8 AA	95
Phosphosite 7:	SSPO	A2VEC9	S4104	GCRCPKGSLEQDGGC	55 / 9 AA	548
Phosphosite 8:	ANK3	Q12955	S3701	EGTSSSGSLEKSAAA	75 / 8 AA	480
Phosphosite 9:	RBM15	Q96T37	S708	PIRDRRGSLEKSQGD	83 / 6 AA	107
Phosphosite 10:	PCDH17	O14917	S1053	PCTSTKGSLDGCEAK	71 / 7 AA	126
Phosphosite 11:	SYCP2	Q9BX26	S983	KSGKSRSSLEKGQPS	62 / 8 AA	176
Phosphosite 12:	RRAD	P55042	S176	YSVTDKGSFEKASEL	55 / 9 AA	33
Phosphosite 13:	ABO	P16442	S46	PRSLMPGSLERGFCM	83 / 6 AA	41
Phosphosite 14:	C10orf137	Q3B7T1	S663	LFLDKMGSLQKGNYS	71 / 7 AA	139
Phosphosite 15:	ZNF845	Q96IR2	S761	KVFSRKSSLEKHRRI	75 / 8 AA	113
Phosphosite 16:	MELK	Q14680	S529	KGAKVFGSLERGLDK	83 / 6 AA	75
Phosphosite 17:	ESPN	B1AK53	S563	LGPAARGSLEGPSAP	71 / 7 AA	92
Phosphosite 18:	ZNF845	Q96IR2	S760	DKVFSRKSSLEKHRR	75 / 8 AA	113
Phosphosite 19:	GSS	P48637	S247	EDISEKGSLDQDRRL	55 / 9 AA	52
Phosphosite 20:	RAPGEF6	Q8TEU7	S1427	TCGQCKGSLERKSWT	83 / 6 AA	179