7P4Z

Crystal structure of avidin from hen egg white in space group C2

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Avidin	polymer	121	13488.2	2	UniProt (P02701) Pfam (PF01382) In PDB	Gallus gallus (Chicken)
2	A, B	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	2	Chemie (NAG)
3		water	water		18.0	13	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	26976.3
Non-Polymers*	Number of molecules	2
	Total formula weight	442.4
All*	Total formula weight	27418.7

*Water molecules are not included.