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:	Y271
P-Site Sequence:	NGQPENNYKTTPPVL
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	Y271	NGQPENNYKTTPPVL	100 / 9 AA	36
Phosphosite 1:	IGHG2	P01859	Y270	NGQPENNYKTTPPML	100 / 9 AA	36
Phosphosite 2:	IGHG1	P01857	Y274	NGQPENNYKTTPPVL	100 / 9 AA	36
Phosphosite 3:	IGHG3	P01860	Y321	SGQPENNYNTTPPML	88 / 9 AA	41
Phosphosite 4:	OCLN	Q16625	Y342	RFYPESSYKSTPVPE	66 / 9 AA	59
Phosphosite 5:	IGHG4	P01861	T273	QPENNYKTTPPVLDS	100 / 7 AA	36
Phosphosite 6:	IGHG1	P01857	T276	QPENNYKTTPPVLDS	100 / 7 AA	36
Phosphosite 7:	PNPLA1	Q8N8W4	Y113	RVLPEDSYKVTTGKL	62 / 8 AA	58
Phosphosite 8:	IGHG4	P01861	T274	PENNYKTTPPVLDSD	100 / 6 AA	36
Phosphosite 9:	IGHG1	P01857	T277	PENNYKTTPPVLDSD	100 / 6 AA	36
Phosphosite 10:	IGHG2	P01859	T273	PENNYKTTPPMLDSD	100 / 6 AA	36
Phosphosite 11:	OCLN	Q16625	S341	KRFYPESSYKSTPVP	62 / 8 AA	59
Phosphosite 12:	ANKRD1	Q15327	S310	FDSLRENSYKTSRIA	62 / 8 AA	36
Phosphosite 13:	GIT2	Q14161	Y592	NSTPESDYDNTPNDM	55 / 9 AA	85
Phosphosite 14:	ALS2CR12	Q96Q35	Y192	LSELENNYKAALKAE	71 / 7 AA	52
Phosphosite 15:	PDHK3	Q15120	Y380	NKSAWRHYKTTPEAD	83 / 6 AA	47
Phosphosite 16:	PDHK3	Q15120	T383	AWRHYKTTPEADDWS	83 / 6 AA	47
Phosphosite 17:	TTN	Q8WZ42	Y18101	ESCPETKYKVTGLRD	62 / 8 AA	3816
Phosphosite 18:	NEBL	O76041	T665	KEQNYKATPVSMTPE	83 / 6 AA	116
Phosphosite 19:	COX6B1	P14854	T14	TKIKNYKTAPFDSRF	71 / 7 AA	10
Phosphosite 20:	C9orf84	Q5VXU9	Y721	GKKPETNYKIQELQC	71 / 7 AA	165