Table 1.

Mean values of length (L), width (W), thickness (T), L/W and W/T ratio of crystals grown in 10% rP148, 4μg/ml enamelin in 10% rP148 (rP148+4En), 10μg/ml enamelin in 10% rP148 (rP148+10En), 40μg/ml enamelin in 10% rP148 (rP148+40En) and 40μg/ml enamelin (40En). These values were compared by paired-sample t-test (Welch's method) at α=0.05. A paired-sample (indicated by alphabet; a, b) was picked from different concentrations within each column. When P value was <0.05, they were considered to be significantly different. Some pairs of data that gave 0.001< P < 0.1 are presented in the footnote. For example, the W/T ratio of rP148 and rP148+10En (both are labeled with W/Ta) was judged statistically not different with the P value of 0.002. The crystal size and the aspect ratios of OCP crystals grown in the absence of the proteins are given in the last line as no addition⁴⁷.

Proteins	Length μm	Width nm	Thickness nm	L/W	W/T
rP148	43±2	442± 158	93±27 Ta, b	97±35	4.7±2.2 W/Ta
rP148+4En	41±7	410± 131	88± 32	100± 36	4.6±2.3 W/Tb
rP148+10En	39± 2La	148± 51	46± 13	260±90L/Wa	3.3±1.5 W/Ta,b
rP148+40En	35± 4La	122± 36	71± 29 Tb	286±91 L/Wa	1.7± 0.7
40En	28± 2	477±172	111± 32 Ta	58±21	4.3±2.0
no addition	89± 8	2011± 596	156± 78	44±14	13± 7

Pla=0.002, necessary to show these values are statistically different.

Pta=0.03, PTb=0.005, necessary to show these values are statistically different.

Pl/wa=0.1005, these are statistically different, but P value is not large.

Pw/ta=0.059, PW/Tb=0.061, these are statistically different, but P value is not large.