7K20

Cryo-EM structure of pyrene-labeled ADP-actin filaments

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	Actin, alpha skeletal muscle	polymer	375	41875.6	4	UniProt (P68139) Pfam (PF00022) In PDB	Gallus gallus (Chicken)	Alpha-actin-1
2	A, B, C, D	MAGNESIUM ION	non-polymer		24.3	4	Chemie (MG)
3	A, B, C, D	ADENOSINE-5'-DIPHOSPHATE	non-polymer		427.2	4	Chemie (ADP)
4	A, B, C, D	N-(pyren-1-yl)acetamide	non-polymer		259.3	4	Chemie (1T4)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	167502.5
Non-Polymers*	Number of molecules	12
	Total formula weight	2843.2
All*	Total formula weight	170345.8

*Water molecules are not included.