Susceptibility to Dental Caries and the Salivary Proline-Rich Proteins

Table 1

(a) Major proteins in parotid secretion¹. (b) Major proteins in submandibular/sublingual secretion¹. (c) Major proteins in whole saliva¹.

(a)

Protein	μg/mL min	μg/mL max	^2Fold increase	^3% min	^4% max
amylase	650	2600	4.0	72.1%	63.6%
cystatin	2	4	2.0	0.2%	0.1%
PRPs	230	1251	5.4	25.5%	30.6%
mucins	0	0	0.0	0.0%	0.0%
sIgA	20	230	11.5	2.2%	5.6%
Total	902	4085

(b)

Protein	μg/mL min	μg/mL max	Fold increase	% min	% max
amylase	0	0	0.0	0.0%	0.0%
cystatin	92	280	3.0	19.0%	12.6%
PRPs	270	1335	4.9	55.9%	59.8%
mucins	80	560	7.0	16.6%	25.1%
sIgA	41	56	1.4	8.5%	2.5%
Total	483	2231

(c)

Protein	μg/mL min	μg/mL max	Fold increase	% min	% max
amylase	380	500	1.3	46.4%	23.8%
cystatin	240	280	1.2	29.3%	13.3%
PRPs	90	180	2.0	11.0%	8.6%
mucins	90	700	7.8	11.0%	33.3%
sIgA	19	439	23.1	2.3%	20.9%
Total	819	2099

¹Data rearranged from of [91, Table 1].
²Fold increase is the minimal (min) to maximal (max) concentration (𝜇g/mL), giving the minimal concentration a value of 1.
³% min-% of min total content
⁴% max-% of max total content.