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:	COL21A1
Human P-Site:	S904
P-Site Sequence:	PEGPPGISKEGPPGD
UniProt:	Q96P44
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	COL21A1	Q96P44	S904	PEGPPGISKEGPPGD	100 / 9 AA	99
Phosphosite 1:	FMN1	Q68DA7	S625	HQSPPGISSEGFPWD	87 / 8 AA	158
Phosphosite 2:	Cas-L	Q14511	S608	KALPPGLSKEQAPDC	85 / 7 AA	93
Phosphosite 3:	ZNF687	Q8N1G0	T113	GAQAAGVTKEGPVGP	55 / 9 AA	130
Phosphosite 4:	JPH2	Q9BR39	S502	KRPRPGVSKDGLLSP	62 / 8 AA	74
Phosphosite 5:	P130Cas	P56945	S313	YDVPPSVSKDVPDGP	55 / 9 AA	93
Phosphosite 6:	COL4A5	P29400	S417	DEGPPGISIPGPPGL	77 / 9 AA	161
Phosphosite 7:	COASY	Q13057	S46	VHLQPGMSLEGPAQP	75 / 8 AA	62
Phosphosite 8:	FMN1	Q68DA7	S626	QSPPGISSEGFPWDG	85 / 7 AA	158
Phosphosite 9:	VPS45	Q9NRW7	S256	LSRVPGISKDLREVV	83 / 6 AA	65
Phosphosite 10:	NOT4	O95628	S307	PSPPPGLSKSNPVIP	66 / 9 AA	64
Phosphosite 11:	CLPX	O76031	S71	FASKDGISKDGSGDG	71 / 7 AA	69
Phosphosite 12:	AHNAK2	Q8IVF2	S447	AQPTPGMSREGEGEG	71 / 7 AA	617
Phosphosite 13:	GOLGA3	Q08378	S1421	LRPPPAVSKEPLKNL	71 / 7 AA	167
Phosphosite 14:	ABT1	Q9ULW3	S262	GAPPPSESMEGPSLV	66 / 9 AA	31
Phosphosite 15:	Asxl3	Q9C0F0	S1135	RLPPPLSSKEGPPNL	77 / 9 AA	242
Phosphosite 16:	KIAA1931	Q96PV7	S583	SMDSNGFSKEGAAEP	71 / 7 AA	97
Phosphosite 17:	CASC4	Q6P4E1	S313	HNGNPGTSKQNPSSP	62 / 8 AA	49
Phosphosite 18:	PLCE1	Q9P212	S519	PSSSAGISKELIDLQ	71 / 7 AA	259
Phosphosite 19:	CLIC5	Q9NZA1	S106	PQEDRGISMEGLYSS	71 / 7 AA	47
Phosphosite 20:	MECT1	Q6UUV9	S574	GESPPSLSKELTSSL	71 / 7 AA	67