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:	HTT
Human P-Site:	S263
P-Site Sequence:	AFIANLKSSSPTIRR
UniProt:	P42858
Intern. Prot. ID:	IPI00002335

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	HTT	P42858	S263	AFIANLKSSSPTIRR	100 / 9 AA	348
Phosphosite 1:	MYO18A	Q92614	S2005	SDDGSLKSSSPTSYW	77 / 9 AA	233
Phosphosite 2:	MYO18A	Q92614	S2007	DGSLKSSSPTSYWKS	100 / 7 AA	233
Phosphosite 3:	MYO18A	Q92614	S2006	DDGSLKSSSPTSYWK	87 / 8 AA	233
Phosphosite 4:	COL12A1	Q99715	S1096	SPRNLKTSDPTMSSF	75 / 8 AA	333
Phosphosite 5:	COL12A1	Q99715	T1095	KSPRNLKTSDPTMSS	75 / 8 AA	333
Phosphosite 6:	STAU2	Q9NUL3	S485	EAIGLKGSSPTPPCS	75 / 8 AA	63
Phosphosite 7:	BAHCC1	Q9P281	S390	APRDLKASGPTFVPS	62 / 8 AA	277
Phosphosite 8:	TLE1	Q04724	S318	STPVLKSSTPTPRSD	85 / 7 AA	83
Phosphosite 9:	TLE1	Q04724	S317	ASTPVLKSSTPTPRS	85 / 7 AA	83
Phosphosite 10:	MTMR7	Q9Y216	S612	LTQDNLKSSDPDLSA	75 / 8 AA	76
Phosphosite 11:	THOC6	Q86W42	S249	TLWHLRSSTPTTIFP	62 / 8 AA	38
Phosphosite 12:	TLE1	Q04724	T319	TPVLKSSTPTPRSDM	85 / 7 AA	83
Phosphosite 13:	UBAP2L	Q14157	S731	ESEANLHSSSSTFST	77 / 9 AA	115
Phosphosite 14:	NR1D2	Q14995	S240	LEQENIKSSSPPSSD	75 / 8 AA	65
Phosphosite 15:	RALGAPA2	Q2PPJ7	S1341	LPLANVKSSEPVQYH	66 / 9 AA	211
Phosphosite 16:	STAU2	Q9NUL3	S486	AIGLKGSSPTPPCSP	85 / 7 AA	63
Phosphosite 17:	ZHX2	Q9Y6X8	S552	EDSFLKSSFPTQAEL	85 / 7 AA	92
Phosphosite 18:	SLC25A3	Q00325	S31	DGLGDLRSSSPGPTG	62 / 8 AA	40
Phosphosite 19:	MTMR7	Q9Y216	S613	TQDNLKSSDPDLSAN	85 / 7 AA	76
Phosphosite 20:	GOLPH3L	Q9H4A5	S110	DRKVLLKSDSPTGDV	85 / 7 AA	33