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:	Btk
Human P-Site:	S180
P-Site Sequence:	GSLKPGSSHRKTKKP
UniProt:	Q06187
Intern. Prot. ID:	IPI00029132

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	Btk	Q06187	S180	GSLKPGSSHRKTKKP	100 / 9 AA	76
Phosphosite 1:	Btk	Q06187	S179	NGSLKPGSSHRKTKK	100 / 8 AA	76
Phosphosite 2:	FLG	P20930	S3905	GSRHPGSSHRDTASH	87 / 8 AA	435
Phosphosite 3:	NT5C2	P49902	S275	HGPKPGSSHRPWQSY	100 / 7 AA	65
Phosphosite 4:	NT5C2	P49902	S274	PHGPKPGSSHRPWQS	100 / 7 AA	65
Phosphosite 5:	Ig heavy chain V-I region SIE	P01761	S17	EVKKPGSSVRVTCKT	77 / 9 AA	14
Phosphosite 6:	C4orf16	Q63HQ0	S59	DEGESPGSSHRPLTE	100 / 6 AA	34
Phosphosite 7:	C4orf16	Q63HQ0	S60	EGESPGSSHRPLTEE	100 / 6 AA	34
Phosphosite 8:	LNX2	Q8N448	S141	KNRCPGASHRRVALE	62 / 8 AA	76
Phosphosite 9:	MLPH	Q9BV36	S282	ELCPPGGSHRMALGT	62 / 8 AA	66
Phosphosite 10:	FLG	P20930	S3904	DGSRHPGSSHRDTAS	100 / 6 AA	435
Phosphosite 11:	MED17	Q9NVC6	S288	LPKSKPGSPHWQTKL	62 / 8 AA	73
Phosphosite 12:	Shb	Q15464	S102	PYNGPGSSLRKLRAM	85 / 7 AA	55
Phosphosite 13:	Shb	Q15464	S101	DPYNGPGSSLRKLRA	85 / 7 AA	55
Phosphosite 14:	ALKBH5	Q6P6C2	S325	PALKPKRSHRKADPD	66 / 9 AA	51
Phosphosite 15:	Ig heavy chain V-I region WOL	P01760	S17	EVKKPGSSVRVSCKT	85 / 7 AA	14
Phosphosite 16:	Ig heavy chain V-I region SIE	P01761	S16	AEVKKPGSSVRVTCK	85 / 7 AA	14
Phosphosite 17:	Ig heavy chain V-I region WOL	P01760	S16	AEVKKPGSSVRVSCK	85 / 7 AA	14
Phosphosite 18:	LNP1	A1A4G5	S43	RHRLQATSHRKTSLP	62 / 8 AA	21
Phosphosite 19:	diaphanous 1	O60610	S66	KEKEKPNSAHRNSSA	62 / 8 AA	141
Phosphosite 20:	C5orf25	Q8NDZ2	S413	SEPAKPGSAHVQSRT	83 / 6 AA	97