3RA3

Crystal structure of a section of a de novo design gigaDalton protein fibre

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, D (A, E)	p1c	polymer	28	3287.5	2
2	B, C (B, D)	p2f	polymer	28	3331.9	2
3	E (E)	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
4	F, G, H, I (A, B, D, E)	water	water		18.0	34	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	13238.9
Non-Polymers*	Number of molecules	1
	Total formula weight	23.0
All*	Total formula weight	13261.8

*Water molecules are not included.