1S4A

NMR Structure of a D,L alternating decamer of norleucine: double antiparallel beta-helix

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	HCO-(D-Nle-L-Nle)3-D-MeNle-L-Nle-D-Nle-L-Nle-OMe	polymer	10	1205.7	2	BIRD (PRD_000108)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	2411.3
All*	Total formula weight	2411.3

*Water molecules are not included.