4ONK

[Leu-5]-Enkephalin mutant - YVVFL

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	[Leu-5]-Enkephalin mutant - YVVFL	polymer	5	639.8	2		synthetic construct
2		water	water		18.0	3	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	1279.6
All*	Total formula weight	1279.6

*Water molecules are not included.