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:	IGSF21
Human P-Site:	S159
P-Site Sequence:	ADTPAPFSRYQAQNF
UniProt:	Q96ID5
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	IGSF21	Q96ID5	S159	ADTPAPFSRYQAQNF	100 / 9 AA	52
Phosphosite 1:	PTCHD1	Q96NR3	S44	ILLGASFSRYQVEES	75 / 8 AA	101
Phosphosite 2:	AATK	Q6ZMQ8	S1335	TPTPAPFSRFTVSPA	85 / 7 AA	145
Phosphosite 3:	NOPE	Q8TDY8	S935	EVGPGPFSRLQDVIT	66 / 9 AA	134
Phosphosite 4:	DBP	Q10586	S316	SHYRAVLSRYQAQHG	66 / 9 AA	34
Phosphosite 5:	GREB1L	Q9C091	S1686	QSLKAPFSRCHVHDF	62 / 8 AA	214
Phosphosite 6:	C5orf48	Q6ZNM6	S118	MPLHSPLSRYQSTVI	62 / 8 AA	15
Phosphosite 7:	PTCHD1	Q96NR3	Y46	LGASFSRYQVEESVE	71 / 7 AA	101
Phosphosite 8:	C5orf48	Q6ZNM6	Y120	LHSPLSRYQSTVISH	71 / 7 AA	15
Phosphosite 9:	RPN1	P04843	S262	AVLKGPFSRYDYQRQ	71 / 7 AA	69
Phosphosite 10:	ERV3	Q14264	S393	SPHPSPFSRFPSLNH	55 / 9 AA	68
Phosphosite 11:	ABCA8	O94911	S611	TAGLDPFSRHQVWNL	62 / 8 AA	179
Phosphosite 12:	ENPP4	Q9Y6X5	S439	LSVPRPFSRLQLQED	75 / 8 AA	52
Phosphosite 13:	HARS	P12081	Y138	LTVPFARYLAMNKLT	71 / 7 AA	57
Phosphosite 14:	DISP1	Q96F81	Y764	SSHPFERYDAEYKKL	71 / 7 AA	170
Phosphosite 15:	DBP	Q10586	Y318	YRAVLSRYQAQHGAL	83 / 6 AA	34
Phosphosite 16:	RPN1	P04843	Y264	LKGPFSRYDYQRQPD	83 / 6 AA	69
Phosphosite 17:	GBA	P04062	S77	FPALGTFSRYESTRS	50 / 8 AA	60
Phosphosite 18:	MAP1A	P78559	S1877	SHTPAPFSWGTAEYD	83 / 6 AA	306
Phosphosite 19:	SELO	Q9BVL4	S184	GAGPTPFSRQADGRK	83 / 6 AA	73
Phosphosite 20:	SKT	Q5T5P2	T158	MSEGDAPTPFSRGSR	83 / 6 AA	214