6XXZ

Crystal structure of a de novo designed parallel four-helix coiled coil, 2-EK-4

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	2-EK-4	polymer	32	3462.0	2		synthetic construct
2	A, B	PROPANOIC ACID	non-polymer		74.1	2	Chemie (PPI)
3		water	water		18.0	41	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	6924.0
Non-Polymers*	Number of molecules	2
	Total formula weight	148.2
All*	Total formula weight	7072.2

*Water molecules are not included.