Table 1.

Collagen Sample Preparations

Sample Name	Type	Source	Buffer	pH	UniProtKB Sequence	Manufacturer
Telo-EPC	type-I collagen	bovine	0.02 M AcA	4	P02453, P02465	Elastin Products
			PBS	7
			PBS and 1 M glycerol	7
Telo-ABM	type-I collagen	bovine	0.01 M HCl	2	P02453, P02465	Advanced BioMatrix
			PBS	7
Atelo-ABM	type-I collagen (no telopeptides)	bovine	0.01 M HCl	2	P02453, P02465 (no telopeptides)	Advanced BioMatrix
			PBS	7
RT	type-I collagen	rat	0.02 M AcA	4	P02454, P02466	Thermo Fisher Scientific
			PBS	7
Type-III	type-III collagen	human	0.01 M HCl	2	P02461	Advanced BioMatrix
			PBS	7
Gelatin	denatured collagen	bovine	PBS	7	N/A	Sigma-Aldrich

Description of collagens, manufacturers, types, sources, buffers, sample pH for experiments, and UniProtKB references for MRE approximations.