Table 1.

Spring constant of the linear region and the force and indentation depth (indent) at which the shell starts to respond nonlinearly

Genome length, %	Spring constant k, N/m	k SD	k SE	Breaking force Fbreak, nN	Fbreak SD	Fbreak SE	Indent, nm	Indent SD	Indent SE
0	0.13	0.04	0.01	0.8	0.4	0.1	5.7	2	0.6
78	0.15	0.07	0.02	0.9	0.4	0.1	6.1	2	0.7
94	0.14	0.05	0.01	1.0	0.3	0.1	6.6	2	0.5
100	0.23	0.06	0.01	1.6	0.6	0.1	7.6	3	0.6