9KZB

Cryo-EM structure of amyloid peptide-silk block protein fibril, Type 1

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D, E... (B, F, G, H, I...)	Major ampullate spidroin 1	polymer	565	48405.3	12		Latrodectus hesperus (Western black widow spider)

Contents of the asymmetric unit

Polymers	Number of chains	12
	Total formula weight	580863.8
All*	Total formula weight	580863.8

*Water molecules are not included.