3SID

Crystal structure of oxidized Symerythrin from Cyanophora paradoxa, azide adduct at 50% occupancy

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Symerythrin	polymer	180	20013.4	2	UniProt (P48329) Pfam (PF02915)	Cyanophora paradoxa	ORF180
2	C, D, F, G (A, B)	FE (III) ION	non-polymer		55.8	4	Chemie (FE)
3	E, H (A, B)	AZIDE ION	non-polymer		42.0	2	Chemie (AZI)
4	I, J (A, B)	water	water		18.0	562	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	40026.7
Non-Polymers*	Number of molecules	6
	Total formula weight	307.4
All*	Total formula weight	40334.1

*Water molecules are not included.