Table 1.

Summary of genes of interest, their designation, genomic organization, protein characteristics expression profile, and possible functions.

Gene name	Odontogenic, ameloblast-associated	Follicular dendritic cell secreted protein	Amelotin	Secretory calcium-binding phosphoprotein, rich in proline and glutamine
Abbreviation and alternate designations	ODAM (APin)	FDCSP (C4orf7; human)	AMTN	SCPPPQ1 (Gm17660; mouse)
Genomic organization	12 exons	5 exons	9 exons	10 exons
Protein characteristics	28.3 kDa, pI 4.83	8.0 kDa, pI 4.46	20.4 kDa, pI 5.88	8.3 kDa, pI 4.68
	PQ rich	P rich	PLTQG rich	PL rich
	P-Ser, p-Thr	P-Ser, p-Thr	P-Ser, p-Thr, p-Tyr	P-Ser
	O-gly	O-gly	O-gly
Predominant expression	Maturation ameloblasts, junctional epithelium	Tonsils, lymph nodes, junctional epithelium	Maturation ameloblasts, junctional epithelium	Maturation stage ameloblasts
	Nasal and salivary glands, oral epithelial tumors
Possible functions	Multifunctional matricellular protein, Regulation of MMP-20	Regulation of inflammation in the JE	Induction of mineralization, cell attachment	Unknown

Note that phosphorylations of serine (p-Ser), threonine (p-Thr), and tyrosine (p-Tyr) as well as O-glycosylations are predicted in silico, not experimentally proven.