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:	IGHG4
Human P-Site:	T273
P-Site Sequence:	QPENNYKTTPPVLDS
UniProt:	P01861
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	IGHG4	P01861	T273	QPENNYKTTPPVLDS	100 / 9 AA	36
Phosphosite 1:	IGHG1	P01857	T276	QPENNYKTTPPVLDS	100 / 9 AA	36
Phosphosite 2:	IGHG4	P01861	T274	PENNYKTTPPVLDSD	100 / 8 AA	36
Phosphosite 3:	IGHG1	P01857	T277	PENNYKTTPPVLDSD	100 / 8 AA	36
Phosphosite 4:	IGHG2	P01859	T273	PENNYKTTPPMLDSD	87 / 8 AA	36
Phosphosite 5:	RTN3	O95197	T687	KMTDFKTTPPVEVLH	75 / 8 AA	113
Phosphosite 6:	RTN3	O95197	T686	EKMTDFKTTPPVEVL	75 / 8 AA	113
Phosphosite 7:	IGHG4	P01861	Y271	NGQPENNYKTTPPVL	100 / 7 AA	36
Phosphosite 8:	IGHG2	P01859	Y270	NGQPENNYKTTPPML	100 / 7 AA	36
Phosphosite 9:	IGHG1	P01857	Y274	NGQPENNYKTTPPVL	100 / 7 AA	36
Phosphosite 10:	IGHG3	P01860	T324	PENNYNTTPPMLDSD	75 / 8 AA	41
Phosphosite 11:	SAPAP2	Q9P1A6	T612	SYTNYKKTPPPVPPR	85 / 7 AA	118
Phosphosite 12:	Cdc27	P30260	T304	YLQNYTNTPPVIDVP	75 / 8 AA	92
Phosphosite 13:	IGHG3	P01860	Y321	SGQPENNYNTTPPML	85 / 7 AA	41
Phosphosite 14:	CCDC108	Q6ZU64	T1574	EPARKYKTLPPIKNQ	62 / 8 AA	217
Phosphosite 15:	ZNF142	P52746	T785	NWVGTFKTTPPAETA	55 / 9 AA	188
Phosphosite 16:	ZNF142	P52746	T786	WVGTFKTTPPAETAP	71 / 7 AA	188
Phosphosite 17:	ZNF704	Q6ZNC4	T311	TDHAYQATPPVTIPG	71 / 7 AA	45
Phosphosite 18:	PDHK3	Q15120	Y380	NKSAWRHYKTTPEAD	83 / 6 AA	47
Phosphosite 19:	PDHK3	Q15120	T383	AWRHYKTTPEADDWS	83 / 6 AA	47
Phosphosite 20:	WDR87	Q6ZQQ6	T1207	KVINEETTPPVMEQP	75 / 8 AA	333